API-First

100ms is a live audio and video infrastructure platform that provides developers with SDKs and APIs for embedding real-time communication features — video rooms, audio spaces, live streams, and record

10x Banking is a financial technology company founded in 2016 by former Barclays CEO Antony Jenkins and headquartered in London, UK. The company provides a cloud-native core banking platform — its Sup

360dialog is a Berlin and São Paulo-based WhatsApp Business API provider and Meta Business Solution Partner that serves as the connectivity and billing intermediary between Meta's WhatsApp Business Pl

A1Base is an AI agent infrastructure company that provides the identity and communication primitives needed to deploy AI agents in the real world. Building a functional AI agent requires more than a l

Abundant is an AI agent development platform that provides the orchestration infrastructure needed to build agents capable of completing complex, multi-step tasks autonomously over extended time horiz

ActiveCampaign is a customer experience automation platform providing email marketing, marketing automation, CRM, and messaging for small and mid-sized businesses — combining sophisticated automation

Activepieces is a San Francisco-based open-source workflow automation platform — backed by Y Combinator with $1.55 million raised from ByTheTower, Forward VC, Fundamental VC, Kima Ventures, and Soma C

Aerospike is a real-time NoSQL database company founded in 2009 by Brian Bulkowski and Ram Sriram, headquartered in Mountain View, California. The platform is purpose-built for mission-critical, high-

AgentSync is an insurance compliance software company that automates producer lifecycle management for insurance carriers, agencies, managing general agents (MGAs), and wholesale brokers. Founded in 2

Agora is a real-time engagement platform that provides developers with SDKs and APIs for embedding high-quality voice calls, video calls, interactive live streaming, and real-time messaging into web,

Airbyte is a San Francisco-based open-source data integration platform enabling data engineers and analytics teams to replicate data from 350+ source applications, databases, and APIs into data wareho

Airspace Technologies is a Carlsbad, California-based logistics technology company founded in 2016 by Nick Bulchoz and Reid Christian, specializing in time-critical freight logistics for high-value, t

Airwallex is a global financial technology platform providing multi-currency business accounts, cross-border payments, corporate cards, and embedded finance APIs for businesses operating international

AISpeech (思必驰, Sibichi) is a Chinese artificial intelligence company founded in 2007 and headquartered in Suzhou, Jiangsu Province, China, with origins in research at the University of Cambridge and C

Aiven is a Helsinki, Finland-based cloud data platform company founded in 2016 that provides fully managed open-source data services across all major cloud providers — AWS, Google Cloud, and Microsoft

Akeyless is an Israeli-American cybersecurity company offering a vaultless secrets management platform, founded and headquartered in Tel Aviv with a strong U.S. commercial presence. The company addres

Alluxio is a data orchestration platform that bridges compute and storage systems across hybrid cloud and on-premises environments, enabling high-performance data access for AI, machine learning, and

Alpaca is a developer-first brokerage infrastructure company founded in 2015 and headquartered in San Mateo, California. It operates as a fully self-clearing broker-dealer with DTCC, Nasdaq, OCC, and

Alviere is an embedded finance platform that enables large non-financial enterprises to offer banking products, payments, and financial services to their customers and employees. Founded in 2018 and h

Amagi is a Bengaluru-founded, New York-headquartered cloud software company that enables broadcasters, content owners, and streaming platforms to create, distribute, and monetize TV channels entirely

Anchor is a Lagos-based embedded finance platform — backed by Y Combinator with $3.4 million raised including a $2.4 million seed round led by Goat Capital — providing Nigerian fintech developers and

Ankr is a Web3 infrastructure platform offering remote procedure call node access to more than 30 blockchain networks through a globally distributed network of nodes run by independent operators. Unli

Ansible is an open-source IT automation framework originally created by Michael DeHaan in 2012 and acquired by Red Hat in 2015, which was itself acquired by IBM in 2019. Ansible was built to solve a f

Anthropic is a San Francisco-based AI safety and research company that builds the Claude family of large language models. As of 2026, the current Claude 4 generation includes claude-opus-4-6 (most cap

Apiday is a Paris-based ESG reporting automation platform designed to help companies navigate the complex and fast-evolving EU sustainability reporting regulatory landscape. The company focuses on aut

Apideck is a unified API platform that abstracts the complexity of integrating with dozens of different third-party APIs into a single normalized interface, enabling SaaS developers to connect their a

Apigee is Google Cloud's API management platform providing the tools that enterprise organizations use to design, secure, publish, analyze, and monetize their APIs — serving as the management layer be

api.video is a cloud video API platform built for developers who need to embed video upload, processing, and playback into their applications without operating video infrastructure. The API covers the

Apollo GraphQL is a software infrastructure company founded in 2016 and headquartered in San Francisco, California. The company created and maintains the world's most widely used GraphQL client and se

AppDirect was founded in 2009 by Daniel Saks and Nicolas Desmarais with a mission to simplify how businesses buy, sell, and manage cloud and SaaS technology. The platform provides the infrastructure f

AppViewX is a New York-based cybersecurity company founded in 2012, focused on automated certificate lifecycle management (CLM) and public key infrastructure (PKI) for enterprise organizations. Its pl

Apto Payments is a card issuing and mobile banking platform designed for fintech companies building mobile-first financial products. Founded in 2015 and headquartered in San Francisco, California, the

Archbee is a Bucharest-based AI-powered documentation platform — backed by Y Combinator (W21) with $4.04 million raised including a $3 million seed round led by Global Founders Capital and Credo Ventu

Argyle is an open finance infrastructure company that enables real-time, consumer-permissioned access to income, employment, and asset data through direct connections to payroll systems and HR platfor

AssemblyAI is a leading speech AI platform providing APIs for transcription, speaker diarization, sentiment analysis, topic detection, and audio intelligence at enterprise scale. Founded in 2017 and h

Authologic is a Warsaw-based unified digital identity verification platform — providing KYC (Know Your Customer) and AML (Anti-Money Laundering) compliance automation for financial services, gaming, g

Availity is the largest real-time health information network in the United States, facilitating electronic data interchange between providers and payers across the full revenue cycle. Headquartered in

Axle is an insurance connectivity platform that provides APIs enabling businesses to instantly verify insurance coverage and access policy data by connecting directly to insurance carrier systems. Bus

Axonius is a New York-based cybersecurity company founded in 2017 that provides comprehensive cyber asset management and SaaS security management solutions. The platform solves a fundamental problem i

Balance is a New York City-based B2B payments and checkout platform — backed by Y Combinator (W20) with $436.6 million in total funding from Viola Credit, Lightspeed Venture Partners, Avid Ventures, R

Base64.ai is a document AI platform that provides a unified API for extracting data from over 1,800 document types, with particular depth in identity documents including passports, national IDs, drive

Beamable is a Boston-based game services company that provides a Unity-native live game services platform designed to help game studios build, operate, and monetize live-service games without leaving

BentoML is a San Francisco-based AI infrastructure company that develops an open-source framework for packaging and deploying machine learning models as scalable API services, solving the persistent g

Biconomy is a Web3 infrastructure platform focused on making decentralized applications usable by mainstream audiences who are not familiar with cryptocurrency gas mechanics. Its core product implemen

Billtrust is an accounts receivable automation and B2B payments company that provides a comprehensive order-to-cash platform for mid-market and enterprise businesses. Founded in 2001 and headquartered

Bitrise is a mobile DevOps and continuous integration/continuous delivery (CI/CD) platform founded in 2014 by Barnabas Birmacher, Daniel Balla, and Viktor Benei, headquartered in Budapest, Hungary wit

Blacklane is a Berlin-based premium chauffeur booking platform founded in 2011 by Jens Wohltorf and Frank Steuer. The platform connects business and luxury travelers with professional, vetted chauffeu

Blocknative is a specialized Web3 infrastructure company focused on pre-chain data — the activity occurring in the Ethereum mempool before transactions are confirmed in a block. Its Mempool Explorer a

Blues (formerly Blues Wireless) is an IoT connectivity platform company that enables developers to add wireless connectivity to physical devices with a simple plug-and-play hardware module and a unifi

Bond Finance was an embedded finance platform that enabled brands, technology companies, and enterprises to launch financial products—including co-branded credit cards, charge cards, and banking accou

Bond is a San Francisco-based embedded finance infrastructure company that enables brands, fintechs, and software companies to launch white-label financial products — branded credit cards, debit cards

Boost Insurance is a New York-based insurance technology company that provides infrastructure-as-a-service for building, launching, and scaling managing general agent (MGA) programs and embedded insur

BrightInsight is a digital health infrastructure company that provides the leading global regulated platform for biopharma and medtech companies building Software as a Medical Device (SaMD) and connec

BrowserStack is a Mumbai, India-based cloud software testing platform — bootstrapped to profitability and backed with $253 million in total funding including a $200 million Series B in 2021 led by Bon

Bruno is an open-source API client and testing tool — a lightweight, offline-first, git-friendly alternative to Postman and Insomnia — enabling developers to explore, test, and document APIs with coll

Buf is a San Francisco-based developer infrastructure company building tools and a cloud platform around Protocol Buffers (protobuf), the binary serialization format widely used in gRPC-based APIs and

Bump.sh is a Paris-based API documentation and change management platform founded in 2020 that addresses one of the most painful operational problems in API-driven development: communicating breaking

CaptivateIQ is a no-code incentive compensation management (ICM) platform that enables sales operations and finance teams to design, automate, and manage sales commission plans — replacing spreadsheet

Caxton is a UK-based financial technology company providing prepaid multi-currency travel money cards and expense management solutions for business travelers and small to medium enterprises. Founded i

CData Software is a data connectivity and integration company founded in 2007 and headquartered in Chapel Hill, North Carolina. The company develops standardized ODBC, JDBC, ADO.NET, and REST drivers

Cerbos is an open-source authorization solution founded in 2021 that provides a centralized policy decision point for application access control, allowing engineering teams to define, manage, and test

Certn is a modern, API-first background screening platform that provides criminal checks, soft checks, employment verification, identity verification, and international screening in a fast and candida

Checkout.com is a global payment processing platform providing enterprise-grade payment APIs, gateway, and acquiring services for large-scale merchants and platforms. Founded in 2012 and headquartered

Checkr is a modern background check platform that uses machine learning to automate employment screening, helping companies make faster, fairer, and more compliant hiring decisions. Founded in 2014 an

Cin7 is a connected inventory management platform designed for product-based small and medium-sized businesses, providing a central system that manages inventory across warehouses, retail locations, 3

Clarifai is an artificial intelligence company founded in 2013 by Matthew Zeiler and headquartered in Wilmington, Delaware. The company provides a full-stack AI platform that spans model training, dep

ClearBank is a cloud-native clearing and embedded banking platform that provides regulated banking infrastructure to fintechs, neobanks, digital asset platforms, traditional financial institutions, an

Clerk is an authentication and user management company that provides developers with pre-built sign-up, sign-in, and user profile components alongside a complete backend API for identity management. A

ClickHouse is the world's fastest open-source column-oriented database management system for real-time OLAP analytics. Originally developed at Yandex for web analytics at petabyte scale, ClickHouse wa

ClickSend is a multi-channel business communications company headquartered in Perth, Western Australia that provides API and dashboard-driven access to SMS, email, voice broadcast, fax, and physical d

Cloudinary is a cloud-based media management platform that handles the entire lifecycle of images and videos in web and mobile applications: upload, storage, transformation, optimization, and CDN deli

Cloudsmith, founded in 2016 and headquartered in Belfast, is a cloud-native artifact management platform that stores, secures, and distributes every software component an organization produces or cons

Coactive is an artificial intelligence company founded in 2021 and headquartered in San Francisco, California, that builds multimodal AI infrastructure for extracting insights from unstructured image

Cobot is a software-as-a-service company founded in 2011 and headquartered in Berlin, Germany. The company builds and operates a management platform purpose-built for coworking spaces, shared offices,

Codat is a financial data integration platform purpose-built for fintechs, banks, and lenders that need structured access to small and medium business financial data. By connecting to accounting platf

Cohere is an enterprise AI platform company providing large language model APIs, embedding models, and AI deployment infrastructure for enterprise applications — competing with OpenAI and Anthropic in

Coherence is a Stockholm-based multiplayer game development platform that dramatically lowers the barrier to building online multiplayer games for Unity developers by automatically generating the netw

Column is a nationally chartered bank founded in 2021 that is built from the ground up as a developer-first financial infrastructure company. Unlike BaaS providers that sit on top of sponsor banks, Co

commercetools is a German enterprise software company that pioneered the composable and headless commerce category, providing a cloud-native, API-first platform that enables enterprises to build custo

Conduktor is a London-based data streaming technology company founded in 2020 by Nicolas Hagopian and Clément Devesa. The company builds an enterprise management and governance layer on top of Apache

Conferma Pay is a financial technology company specializing in virtual card payment solutions for the corporate travel ecosystem, connecting travel management companies, online booking tools, and corp

Consensys is the leading Ethereum software company, founded in 2014 by Joseph Lubin, one of the eight co-founders of the Ethereum blockchain. Headquartered in New York City with a global team, Consens

Contentstack is an enterprise headless content management system (CMS) and composable digital experience platform (DXP) that enables organizations to manage and deliver content across any digital chan

Contrast Security is a Los Altos-based application security company founded in 2014 by Arshan Dabirsiaghi and Jeff Williams that pioneered Instrumentation-based Application Security Testing (IAST) and

Coolify is an open-source, self-hostable platform-as-a-service that allows developers to deploy applications, databases, and third-party services on their own servers or cloud VPSs with the same conve

Count is a collaborative data notebook platform founded in 2019 in London, designed to bridge the gap between data analysis and business communication. Unlike traditional BI tools that separate analys

Covalent is a unified blockchain data infrastructure provider that normalizes on-chain data across more than 100 networks into a single, consistent REST API. Rather than requiring developers to write

Cover Genius is a Sydney, Australia-based embedded insurance platform that has raised over $70 million in funding. Founded in 2014, Cover Genius's XCover platform enables global digital companies — in

Crux Informatics is a New York-based data technology company founded in 2017 by Philip Brittan and Craig Carlin. The company builds a cloud-based platform for external data integration and operations

Cube is a semantic layer and headless business intelligence platform founded in 2019 and headquartered in San Francisco, California. The company was founded by Artyom Keydunov and Pavel Tiunov to solv

Customer.io is a marketing automation and customer messaging platform founded to give product-led businesses precise, behavior-driven control over how they communicate with users across email, SMS, pu

Dacast is a professional live streaming and video-on-demand hosting platform designed for businesses, media organizations, and event producers that need reliable broadcasting infrastructure without th

Daily.co (now Daily) is a real-time video and audio API platform enabling developers to embed high-quality video calls, audio conferencing, and live streaming into web and mobile applications without

Datafold is a data observability and data quality testing platform that helps data engineering teams automatically detect data quality regressions, schema changes, and anomalies in their data pipeline

DataGrail is a San Francisco, California-based data privacy management company founded in 2017 that automates the operational workflows required by modern privacy laws, with a particular focus on data

Daytona is an open-source development environment manager built to standardize how development workspaces are created, configured, and accessed across an organization's entire infrastructure footprint

Decart is an Israeli-American AI startup that develops real-time generative models capable of producing interactive video at zero latency. Founded less than two years before its August 2025 funding an

Decentro is an Indian banking-as-a-service (BaaS) API platform enabling fintech companies, enterprises, and technology startups to embed financial services into their products — bank accounts, payment

Deepgram is a speech AI company providing fast, accurate, and cost-efficient speech-to-text and audio intelligence APIs built on proprietary end-to-end deep learning models. Founded in 2015 and headqu

Defined.ai (formerly DefinedCrowd) is a Lisbon, Portugal-based AI data marketplace and training data platform founded in 2015 by Daniela Braga. The company operates the largest global marketplace of e

Denodo is a Palo Alto-based enterprise software company and the globally recognized leader in data virtualization — a data management approach that creates a unified virtual data layer across disparat

DevZero is a Seattle-based developer infrastructure company that provides cloud development environments designed to give every engineer a fast, production-like workspace without the overhead of maint

Ditto is a San Francisco-based software company that provides an edge-native database platform enabling mobile and edge applications to store and synchronize data peer-to-peer — without requiring cont

Doppler is a secrets management platform founded in 2019 and headquartered in San Francisco, California. The company was founded by Brian Vallelunga and Ryan Blunden to solve a problem endemic to soft

Dots is a San Francisco-based payout infrastructure company providing a multi-channel API for marketplaces, gig platforms, and creator economy companies to pay their sellers, contractors, and creators

Drata is a continuous security and compliance automation platform founded in 2020 by Adam Markowitz, Daniel Marashlian, and Waldo Grunewald in San Diego, California, built to automate the evidence col

DrFirst is a health IT company that has been at the forefront of e-prescribing and medication management since its founding in 2000. Headquartered in Rockville, Maryland, DrFirst provides e-prescribin

DriveWealth is a financial technology company founded in 2012 and headquartered in Chatham, New Jersey, operating as the infrastructure backbone for embedded investing experiences. The company provide

Duffel is a London-based travel technology company that provides a developer-friendly API for embedding airline flight search, booking, and ancillary product sales — such as seat selection, baggage, a

Duplo is a Nigerian B2B fintech company providing an integrated platform for African businesses to automate payables, receivables, and corporate expense management — enabling companies to pay supplier

Dwolla is a financial technology company founded in 2008 by Ben Milne and headquartered in Des Moines, Iowa. The company operates a developer-first API platform that enables businesses to integrate ba

Dynamic is a developer-focused authentication platform that enables applications to add wallet-based login and Web3 identity management without building the underlying infrastructure. Its SDK handles

EagleView is a geospatial analytics and aerial measurement company that delivers precise property and roof measurement reports generated from high-resolution aerial imagery and satellite data, serving

EasyPost provides a unified shipping API that gives ecommerce companies, logistics platforms, and enterprise shippers access to 100+ carrier services — including UPS, FedEx, USPS, DHL, and regional ca

Effectiv is an AI-powered fraud and risk decisioning platform that enables fintech companies and financial institutions to build, deploy, and manage fraud prevention workflows across the full customer

Emerald Cloud Lab (ECL) is a biotechnology infrastructure company that enables scientists to conduct real wet-lab experiments entirely remotely through a cloud-based interface. Founded as a spin-out o

Encore is a Stockholm-based developer tools company that provides an open-source backend development framework that generates infrastructure configuration, API boilerplate, and deployment automation f

Escape is an API security testing platform that uses dynamic analysis to automatically discover, map, and test REST and GraphQL APIs for security vulnerabilities, providing development and security te

Estuary Flow is a real-time data integration and streaming ETL company founded in 2019 and headquartered in Columbus, Ohio. The company was founded by Dave Yaffe and Johnny Graettinger to build a stre

Evidence.dev is an open-source business intelligence framework founded in 2021 that takes a fundamentally different approach to reporting: instead of drag-and-drop dashboards, Evidence lets data teams

Exa is a next-generation AI search engine and API designed specifically for AI agents and developers — providing LLM-optimized web search that returns clean, structured content from web pages rather t

Explo is an embedded analytics platform founded in 2021 and backed by Y Combinator, purpose-built for SaaS companies that need to deliver data insights to their end customers within their own product.

Extensiv is a supply chain software company that provides warehouse management, order management, and network orchestration platforms specifically designed for third-party logistics providers and the

ezyVet is a cloud-based veterinary practice management and client engagement platform that provides veterinary clinics with patient records, scheduling, invoicing, billing, client communication, and a

Fabric is a commerce technology company founded in 2017 by Faisal Masud and headquartered in Seattle, Washington. The company builds a headless, API-first commerce platform that provides retailers and

FarmLogs is a farm management software platform acquired by Bushel (an agricultural supply chain software company) in 2020 — providing crop farmers and agricultural operations with digital tools to tr

Feedonomics is a Los Angeles-based product feed management and optimization platform — acquired by BigCommerce (NASDAQ: BIGC) in 2021 for $145 million — that helps e-commerce brands and retailers synd

Fern is a New York-based API tooling company that automatically generates multi-language SDKs and API documentation from OpenAPI specifications — enabling API companies to publish high-quality client

FieldNation is an on-demand marketplace and work order management platform that connects enterprises, system integrators, and managed service providers with a network of more than 130,000 independent

Finastra is one of the world's largest financial technology companies, headquartered in London, United Kingdom and majority-owned by Vista Equity Partners. Formed in 2017 through the merger of Misys a

Finch is a universal employment API providing a single integration point for HR, payroll, and benefits data from hundreds of employment systems — Gusto, ADP, Workday, QuickBooks Payroll, Rippling, and

Fingerprint is a device intelligence platform that generates highly accurate and stable visitor identifiers by combining browser fingerprinting, hardware signals, network characteristics, and behavior

Finix is a payments infrastructure company enabling software platforms, SaaS companies, and marketplaces to become their own payment facilitators — processing payments directly rather than through thi

FintechOS is a financial technology company founded in 2017 by Teodor Blidărus and Sergiu Negut and headquartered in London, United Kingdom (with R&D in Bucharest, Romania). The company provides a low

Fintoc is a Santiago, Chile-based open banking API company that enables online businesses to accept instant account-to-account payments directly from customers' bank accounts — bypassing credit card n

Finzly is a modern payments and banking infrastructure company headquartered in Charlotte, North Carolina. Founded in 2012, Finzly provides community banks, regional banks, and credit unions with a mo

Firstbase is a business operating platform built specifically for international entrepreneurs and remote-first founders who want to start and run a US company without relocating. The platform handles

First Resonance is a Los Angeles-based manufacturing software company founded in 2019 that builds the ION Factory Operating System — a modern, cloud-native manufacturing execution system (MES) purpose

Flagsmith is an open-source feature flagging and remote configuration platform that enables engineering teams to deploy code continuously and control feature releases, A/B tests, and configuration cha

Flatfile is a San Francisco-based developer platform that solves the "data onboarding" problem — the complex, time-consuming process of importing customer data from external sources into SaaS applicat

Flex is a United States-based HSA/FSA payment infrastructure platform — backed by Y Combinator (S23) with $18 million in total funding including a $3.2 million seed in September 2024 from Y Combinator

FlutterFlow is a no-code and low-code app builder that enables users to create native iOS, Android, and web applications by visually designing screens, connecting backend services (Firebase, Supabase,

Flutterwave is a pan-African payments technology company building the infrastructure enabling businesses to make and accept payments across Africa and beyond. Founded in 2016 in San Francisco with ope

Fonoa is a Dublin-based tax technology company that automates indirect tax compliance for digital businesses operating globally. Founded by former Uber tax and technology executives, Fonoa builds soft

Footprint is an identity verification and fraud prevention company that provides an AI-native platform for automating customer onboarding. Its platform handles Know Your Customer (KYC), Know Your Busi

Form3 is a London-based financial technology company offering a cloud-native, real-time payments-as-a-service platform for banks, payment service providers, and financial institutions. Founded to mode

Formance is a Paris, France-based open-source financial infrastructure company — backed by Y Combinator with $21 million raised in a Series A in January 2025 co-led by PayPal Ventures and Portage Vent

Freightos is a freight technology company that operates a global digital marketplace connecting importers and exporters with freight forwarders and carriers, alongside a SaaS platform for managing fre

Fyle is a real-time expense management platform that differentiates through deep integration with corporate credit cards from any bank and direct sync with accounting software, giving finance teams li

Galileo Financial Technologies is a financial technology platform providing card issuance, payment processing, and account management APIs that power some of the largest fintech companies in the Unite

Garden is a Berlin-based developer platform that provides engineering teams with automated, reproducible development and testing environments that closely mirror production. Garden's orchestration eng

Genvid Technologies is the pioneer of Massively Interactive Live Events (MILEs) — a technology category that blends live-streamed games and interactive entertainment into experiences where large onlin

GitHub Actions is Microsoft's CI/CD (continuous integration/continuous deployment) and workflow automation platform built natively into GitHub — enabling developers and DevOps teams to automate softwa

GoCardless is a global bank payment network specializing in recurring bank-to-bank payments via direct debit, enabling businesses to collect subscription fees, invoices, and recurring charges directly

Gr4vy is a San Jose-based payment orchestration company founded in 2020 that provides enterprises with a cloud-native payment infrastructure layer deployed directly into the merchant's own cloud envir

Grafbase is a globally distributed GraphQL platform that enables developers to build, deploy, and serve data APIs at the edge without managing API servers or database infrastructure. The platform uses

Graphiant is a San Jose-based Network-as-a-Service (NaaS) company founded to replace legacy enterprise WAN infrastructure with a cloud-native, software-defined connectivity fabric. Its platform provid

Gretel is a synthetic data platform founded in 2019 and headquartered in San Diego, California, that enables data scientists, ML engineers, and enterprise teams to generate high-quality artificial dat

Grip Security is a SaaS security risk management company founded in 2021 and headquartered in Tel Aviv, Israel. The company takes an identity-centric approach to SaaS security, arguing that since ever

Gumlet is a developer-focused video infrastructure platform providing API-driven video hosting, transcoding, and delivery optimized for product teams building video features into web and mobile applic

GWI (formerly GlobalWebIndex) is a leading consumer research and audience intelligence platform that provides brands, agencies, and media companies with deep, survey-based insights into the attitudes,

H1 is a healthcare data technology company building the industry's most comprehensive provider data platform, serving life sciences companies, health plans, hospitals, and digital health organizations

H2O.ai is an open-source machine learning and AI platform company providing automated machine learning (AutoML), model explainability, enterprise AI application development, and generative AI tools —

Hasura is a modern data API platform that enables developers to instantly create high-performance GraphQL and REST APIs over their existing databases without writing boilerplate backend code. The plat

Hatchet is an open-source distributed task queue and workflow orchestration platform designed for engineering teams that need reliable, observable background job execution at production scale with the

Health Gorilla is a health information network and API company that enables secure, nationwide clinical data exchange across payers, providers, EHR vendors, digital health companies, and laboratories.

Heron Data is a financial data intelligence platform providing instant categorization and enrichment of transaction data for fintech companies, lenders, and financial services applications. Founded in

Hevo Data is a no-code data pipeline and real-time ELT platform founded in 2017 and headquartered in San Francisco, California, with core engineering in Bengaluru, India. The company was founded by Ma

Highnote is a next-generation embedded card and payment platform built by fintech industry veterans from Braintree and PayPal. Founded in 2020 and headquartered in San Francisco, California, the compa

Hightouch is a San Francisco-based data activation and composable CDP (Customer Data Platform) platform — backed with approximately $220 million in total funding including an $80 million Series C in F

Hive is an AI company that provides pre-trained deep learning models via API for content understanding, moderation, and generation tasks. Founded in 2013 by Kevin Guo and Dmitriy Karpman in San Franci

Holistics is a business intelligence platform founded in 2016 and headquartered in Singapore, built around the idea that BI should be governed by data teams but accessible to everyone in an organizati

Hologram is an IoT connectivity company founded in 2013 by Ben Forgan and Patrick Wilkes and headquartered in Chicago, Illinois. The company operates a cloud-native cellular connectivity platform that

Hoppscotch is an open-source API development and testing platform — providing a web-based, lightweight alternative to Postman and Insomnia for building, testing, and documenting REST, GraphQL, WebSock

Hugging Face is the leading AI model hosting and collaboration platform and the creator of the Transformers library — providing open-source infrastructure for sharing, discovering, and deploying machi

Huma (formerly Medopad) is a London-based digital health company that operates a cloud-based remote patient monitoring (RPM) and decentralized clinical trial platform used by hospitals, health systems

Humaans is a modern HRIS (Human Resources Information System) and employee data platform designed for fast-growing technology companies that have outgrown spreadsheets and need a clean, API-first empl

Hydrolix is a technology company founded in 2019 and headquartered in Portland, Oregon, specializing in a streaming data lake platform designed to transform the economics of high-volume log and teleme

Hyperbolic is a San Francisco-based AI infrastructure company founded in 2023 by Jasper Zhang and Nathaniel Chiang that operates an open-access AI inference and GPU compute marketplace. The platform a

Hyperspell is an AI document intelligence company that combines AI-assisted writing with structured knowledge management to help teams create and maintain complex long-form documents more efficiently.

Identity Digital is a global domain name registry company and the world''s largest operator of new generic top-level domains (gTLDs), managing hundreds of descriptive domain extensions such as .live,

Incode Technologies is an AI-powered identity verification and biometric authentication company founded in 2015 by Ricardo Amper and Jovan Jovanovic, headquartered in San Francisco with operations acr

Increase is a San Francisco-based banking infrastructure company providing direct-access banking APIs to technology companies — enabling fintechs, neobanks, payroll platforms, and embedded finance pro

InEight is an integrated construction project controls and management platform designed for large-scale infrastructure, heavy industrial, and capital construction projects, providing tools for estimat

Infactory is an artificial intelligence company that has built a Fact Platform — a layer of infrastructure for enterprise AI applications that prioritizes factual accuracy, source attribution, and ver

Infinia is a Montevideo, Uruguay-based account-to-account (A2A) payments infrastructure company — backed by Y Combinator (W23) with $500,000 in funding from G2 Momentum Capital, Tekton Ventures, YC, D

Infinitus Systems is a healthcare AI company that automates the high-volume, repetitive phone call work that burdens provider administrative teams. Founded in 2019 and headquartered in San Francisco,

inFlow Inventory is a cloud and desktop inventory management software designed for small businesses, wholesalers, and light manufacturers that need straightforward inventory tracking, order management

Infobip is a global cloud communications company founded in 2006 in Vodnjan, Croatia, and now headquartered in London, that has built one of the world's most extensive direct carrier network infrastru

Infura is a blockchain infrastructure provider that gives developers reliable, scalable API access to Ethereum and other networks without the operational overhead of running their own nodes. Since lau

Inngest is a durable execution platform that allows developers to write reliable background functions, scheduled jobs, and event-driven workflows directly in their application code without managing qu

Insomnia is an open-source API development and testing platform that provides developers with a powerful client for designing, debugging, and testing REST, GraphQL, SOAP, and WebSocket APIs — offering

Jestor is a no-code/low-code platform that enables businesses to build custom internal tools, automate workflows, and manage structured data without writing software — providing a visual interface to

Jina AI is a Berlin-based AI infrastructure company that builds and serves state-of-the-art multimodal embedding models, reranking models, and neural search infrastructure used by developers and enter

Jitsu is a San Francisco-based open-source data integration platform enabling data engineers to build real-time event data pipelines that collect, transform, and route user behavior events from web an

Jonas Construction Software is an integrated enterprise resource planning platform for general contractors, specialty subcontractors, and service contractors, providing construction-specific accountin

Kahua is a capital program management and construction project management platform designed for construction owners — government agencies, healthcare systems, universities, utilities, and corporate re

KarmaCheck is a human resources technology company founded in 2020 and headquartered in San Francisco, California. The company built an end-to-end digital background screening platform that uses artif

Katana MRP is a cloud-based manufacturing resource planning platform designed for small and medium-sized manufacturers, craft producers, and product companies that need real-time production scheduling

Klook is a travel experiences and activities booking platform founded in 2014 by Ethan Lin, Eric Gnock Fah, and Bernie Xiong, and headquartered in Hong Kong. The company operates one of the world's la

Knowde is a San Francisco-based technology company founded to digitally transform the $5 trillion global chemicals and ingredients industry. The company operates the world's largest digital catalog of

Kobalt Music Group is a London-based independent music publishing and rights management company founded in 2000 by Willard Ahdritz. Kobalt has grown to become the world's largest independent music pub

Kombo is a Berlin-based unified HR integration API that enables B2B software companies to integrate with 100+ HR, ATS (applicant tracking systems), and payroll systems through a single standardized AP

Kong is an enterprise API management and service connectivity platform providing an API gateway, service mesh, and developer portal for organizations managing hundreds of microservices and APIs. Found

Koyeb is a serverless cloud platform that enables developers to deploy containerized applications, APIs, and background workers globally without managing servers, Kubernetes clusters, or infrastructur

Kpler is a global commodity intelligence company that provides real-time trade data, market analytics, and research services for physical and financial participants in energy, agricultural, and dry bu

Labviva is a Boston-based life sciences technology company founded in 2017 by Lina Nilsson and Barry Bettman. It operates a digital procurement marketplace purpose-built for scientific researchers at

Latenode is a low-code workflow automation platform that combines the accessibility of a visual drag-and-drop workflow builder with first-class JavaScript code execution in any workflow step, targetin

Lean Technologies is a Riyadh-based fintech infrastructure company founded in 2019 by Hisham Al-Falih, Aditya Sarkar, and Ashu Gupta. It provides secure financial APIs that connect applications to ban

Lendflow is an embedded lending infrastructure platform that enables software companies to integrate credit products — business loans, lines of credit, revenue-based financing — directly into their ex

Lentra is a Pune-based fintech SaaS company that enables banks and non-banking financial companies (NBFCs) in India to digitize their end-to-end lending operations. Founded in 2018, Lentra''s platform

Lightning AI is a New York-based AI development platform company built by the creators of PyTorch Lightning — the open-source deep learning framework used by hundreds of thousands of researchers and e

Lightspeed Commerce is a cloud-based point-of-sale and commerce platform serving restaurants, retail stores, and golf clubs with POS, payments, inventory management, and ecommerce capabilities integra

Lithic is a card issuing and payment infrastructure platform built for developers and product teams building embedded payment experiences. Founded in 2016 and headquartered in New York City, the compa

Liveblocks is a collaborative infrastructure platform that provides APIs and pre-built components for adding real-time collaboration features — presence, multiplayer editing, comments, notifications,

Lmnt (pronounced "element") is a San Francisco-based speech synthesis company that provides an ultra-low-latency text-to-speech API designed specifically for real-time voice AI applications including

Lob is a direct mail automation platform that enables businesses to send personalized, trackable physical mail at scale through a developer-friendly API and marketer-facing campaign management tools.

LootLocker is a Copenhagen-based game backend-as-a-service company that gives game developers pre-built infrastructure for the operational and social features that modern games require, without the co

MacroFab is a Houston, Texas-based electronics manufacturing technology company founded in 2013 by Misha Govshteyn and Parker Young. The company operates a cloud-based electronics manufacturing platfo

Magic AI is an artificial intelligence company building large-scale code generation and software development automation models. Founded in 2022, the company positions its AI system as a "coworker" rat

Mailersend is a transactional email and SMS platform founded in 2020 by the team behind MailerLite, headquartered in Vilnius, Lithuania, that provides developers and product teams with a developer-fir

Malga is a São Paulo-based payment orchestration platform — backed by Y Combinator with $10.3 million raised including a $5.55 million Series A led by CV iDEXO and Costanoa in February 2025 — enabling

Mambu is a cloud-native SaaS banking platform headquartered in Berlin, Germany with offices in Amsterdam and globally, founded in 2011. The company provides a composable banking platform that financia

Mapbox is a Washington D.C.-based location data platform that provides maps, navigation, search, and location intelligence APIs to developers and enterprises. Founded in 2010, Mapbox has built the mos

Marketo is a leading B2B marketing automation platform now part of Adobe — providing email marketing, lead management, account-based marketing (ABM), consumer marketing automation, and revenue attribu

Marqeta is a modern card issuing platform that enables companies to create, issue, and manage customized payment card programs. Founded in 2010 and headquartered in Oakland, California, Marqeta went p

Maxwell Financial Labs is a digital mortgage technology company that provides a point-of-sale platform and mortgage processing workflow software to community banks, credit unions, and independent mort

Meilisearch is a Paris-based search technology company that provides an open-source, self-hostable search API enabling developers to add fast, relevant, and typo-tolerant search functionality to their

Melio Payments is a New York-based B2B payments platform founded in 2018 that enables small and medium-sized businesses to pay vendors, suppliers, and business bills via ACH transfer, credit card, or

Merge is a unified API platform that enables B2B SaaS companies to ship integrations with HR, applicant tracking, payroll, accounting, and CRM systems without building and maintaining each connector i

Mesh Payments is a corporate spend management platform that provides companies with virtual and physical corporate cards, real-time spend controls, and automated expense management in a single integra

MessageBird, now operating as Bird, is an Amsterdam-based communications platform-as-a-service (CPaaS) company that enables businesses to communicate with customers across SMS, email, voice, WhatsApp,

Mia-Platform is an Italian software company that builds an Internal Developer Platform designed to give engineering organizations a unified control plane for managing microservices, API gateways, CI/C

Middesk is a business identity verification platform that automates Know Your Business (KYB) onboarding for financial institutions, fintech companies, and payment processors that need to verify the le

MindsDB is an open-source AI integration platform founded in 2017 by Jorge Torres and Adam Carrigan, headquartered in San Francisco, California. The company's core innovation is enabling developers an

Mistral AI is a French artificial intelligence company building and commercializing high-performance open and proprietary large language models, positioning itself as Europe's leading AI foundation mo

Mito is a New York-based developer tools company providing a JupyterLab spreadsheet extension that automatically generates Python code as users edit data — enabling Excel-proficient data analysts to a

Modern Treasury is a payments operations platform providing API infrastructure for moving money, reconciling transactions, and managing ledger entries at scale. Founded in 2018 and headquartered in Sa

Mondu is a Berlin-based B2B payments company founded in 2021 by Philipp Povel, Malte Huffmann, and Gil Danziger. It provides buy now pay later and flexible payment solutions purpose-built for business

Monite is an embedded finance platform that provides APIs for vertical SaaS companies and fintech platforms to embed invoicing, accounts payable, and payment automation features directly into their pr

Mono is a Lagos-based fintech company providing open banking APIs that enable African businesses to connect with their customers' financial accounts — offering account connectivity (read customer bank

Monogoto is a software-defined connectivity company founded in 2018 and headquartered in Tel Aviv, Israel, with a US presence in New York. The company operates a cloud-native cellular platform that pr

Monte Carlo is a San Francisco-based data observability company founded in 2019 by Barr Moses and Lior Gavish. The company pioneered the data observability category — a systematic approach to monitori

Moov is a fintech infrastructure company that provides open-source, extensible payment and banking infrastructure for developers and businesses. Founded and headquartered in the United States, Moov''s

Moov Financial is a Cedar Falls, Iowa-based payments infrastructure company that provides open-source and API-based tools for developers building payment capabilities including ACH transfers, card acc

Moralis is a Web3 development platform that abstracts the infrastructure complexity of building blockchain-connected applications. Developers access a unified API layer covering wallet data, NFT metad

MuleSoft is an integration platform-as-a-service (iPaaS) that enables enterprises to connect applications, data sources, and APIs across cloud and on-premises systems — providing the integration middl

MX Technologies is a financial data platform that powers data connectivity, enhancement, and actionable money insights for financial institutions, fintechs, and digital banking providers. Founded in 2

n8n is a workflow automation platform that differentiates itself in the crowded automation market through its open-source model, deep AI integration, and flexibility for technical users. While Zapier

Nacelle provides a composable commerce data layer that sits between a merchant's existing ecommerce backend — primarily Shopify Plus or Salesforce Commerce Cloud — and their custom front-end, synchron

Nango is a San Francisco-based integration infrastructure platform — backed by Y Combinator (W23) with $1.2 million in annual revenue in 2024 — providing developers and engineering teams with a unifie

NanoNets is an AI-powered document processing platform that automates data extraction from invoices, receipts, purchase orders, and other unstructured documents. Founded in 2017 and headquartered in S

Narmi is a fintech company founded in 2016 and headquartered in New York City that provides digital banking infrastructure for community banks and credit unions. Its flagship product, Narmi One, is a

Nash is a last-mile delivery orchestration platform that enables retailers, restaurants, and logistics companies to manage on-demand delivery through a single integration connecting to a network of de

Nearmap is a location intelligence company that provides high-resolution aerial imagery captured on a frequent, scheduled basis across major metropolitan areas in the United States, Australia, Canada,

NewsCatcher is a London-based web data company providing enterprise news and web data APIs — processing 1.5 million articles daily from 140,000+ sources across 60+ languages — serving hedge funds, fin

NexHealth is a patient experience platform that modernizes healthcare practice front offices through online booking, automated patient communications, digital intake forms, and secure payment collecti

Nium is a global fintech company providing real-time payment infrastructure for banks, financial institutions, and platforms operating across international markets. Founded in 2014 in Singapore and he

Nivoda is a B2B diamond and gemstone marketplace founded in 2017 by David Sutton and Josh Sherlock and headquartered in London, United Kingdom. The platform connects jewelry retailers and designers di

NMI (Network Merchants Inc.) is a payment technology company founded in 2001 and headquartered in Schaumburg, Illinois. The company operates a white-label payment enablement platform that allows indep

NocoDB is an open-source no-code platform founded in 2021 that transforms any relational database — MySQL, PostgreSQL, MariaDB, SQLite, or SQL Server — into an Airtable-like spreadsheet interface, ena

Noname Security is an API security company founded in 2020 and headquartered in Palo Alto, California. The company built one of the first dedicated API security platforms to address the growing threat

Notarize is an online notarization company founded in 2015 by Pat Kinsel and headquartered in Boston, Massachusetts. The company pioneered the Remote Online Notarization (RON) market in the United Sta

Novu is an open-source notification infrastructure platform that provides developers with a unified API for sending and managing notifications across email, SMS, push, in-app, chat, and webhook channe

Noyo is a San Francisco-based technology company founded in 2017 by Shannon Goggin and Dennis Lee. It operates as the data connectivity layer for the employee benefits industry — a sector historically

Nuvocargo is a New York City and Mexico City-based digital freight platform focused exclusively on the US-Mexico cross-border trade corridor — the world's largest bilateral trade relationship at $800

Nylas is a San Francisco-based API platform company that provides developers with unified access to email, calendar, contact, and meeting data across all major providers (Gmail, Outlook/Exchange, Yaho

Nymbus is a cloud banking platform that enables established banks, credit unions, and new charter holders to launch digital banking brands quickly without requiring full core system replacement. Found

Omnivore is a restaurant technology integration platform headquartered in San Francisco, California, that provides a universal API connecting third-party applications to restaurant POS systems. Founde

Opal Security is an identity-centric access management company founded in 2020 and headquartered in San Francisco, California. The company was founded by Umaimah Khan and Harlan Harris with the goal o

OpenAI is a San Francisco-based artificial intelligence company developing and deploying large-scale AI systems — including GPT-4o, o1 reasoning models, DALL-E 3 image generation, Sora video generatio

OpenAI Platform is the developer API platform of OpenAI — providing programmatic access to OpenAI's large language models (GPT-4o, o1, o3, Whisper, DALL-E, Sora) and AI tools through a REST API that d

Open Loyalty is an open-source, headless loyalty platform headquartered in Wrocław, Poland. Founded in 2014, the company offers its core loyalty engine as open-source software under a permissive licen

Orderful is a supply chain technology company founded in 2017 and headquartered in Las Vegas, Nevada, that modernizes electronic data interchange (EDI) — the decades-old protocol used by retailers, su

Ordergroove is a subscription and loyalty commerce platform designed for enterprise and mid-market eCommerce brands that need a flexible, platform-agnostic recurring revenue solution deployable across

Ordoro is an inventory management and multi-channel order fulfillment platform designed for growing e-commerce sellers and small to mid-size merchants. Founded in 2010 and headquartered in Austin, Tex

Ori Industries is a UK-headquartered AI-native GPU cloud provider that operates under the brand Ori GPU Cloud. The company builds and operates high-performance compute infrastructure purpose-designed

Orum is a New York-based money movement company that provides an intelligent payment routing API that automatically selects the optimal payment rail — ACH same-day, RTP real-time payments, wire, or pu

Overwolf is a Tel Aviv-based platform company that enables developers and creators to build, distribute, and monetize in-game apps, mods, and overlays for PC games. The platform's SDK integrates direc

Oxio is a Telecom-as-a-Service (TaaS) company that enables businesses, brands, and service providers to build, launch, and operate their own mobile network operator (MVNO) or connectivity product thro

Palenca is a Mexico City-based fintech API company providing payroll data connectivity across Latin America — enabling fintechs, banks, and financial institutions to access employment and income data

Pandium is an embedded integration marketplace platform that enables B2B SaaS companies to build and launch a native integration ecosystem within their product, where customers can browse, install, an

Pangea is a security platform as a service company founded in 2021 and headquartered in Santa Clara, California. The company was founded by Oliver Friedrichs, Sourabh Satish, Oshri Cohen, and Steve Be

Parafin is an embedded business financing platform that enables software platforms and marketplaces to offer capital advances and loans to their small business users. Founded in 2020 and headquartered

Paragon is an embedded integration platform that enables SaaS companies to ship native integration capabilities into their products by providing the infrastructure for connecting to third-party APIs,

Particle Health is a health data exchange company founded in 2018 that provides developers and healthcare companies with a single API to access patient clinical records from national health informatio

Paw is a powerful REST, GraphQL, and HTTP API testing client for macOS, designed for developers who need a native, feature-rich alternative to web-based tools like Postman. Founded and developed as an

Payabli is a Miami-based embedded payments infrastructure company founded in 2021 that provides vertical SaaS platforms and software businesses with the full technical and regulatory infrastructure ne

PayCaddy is a Panama City, Panama-based Banking as a Service (BaaS) platform — backed by Y Combinator (W22) with $4.3 million raised from AAF Management, Cathexis Ventures, Kube VC, Rebel Fund, and So

PayNearMe is a fintech company that provides a comprehensive Payment Experience Management (PEM) platform — rebranded as PayXM in 2025 — for businesses that collect consumer payments across multiple c

Paystack is a payments technology company enabling African businesses to accept payments from customers worldwide through cards, bank transfers, and mobile money. Founded in 2015 in Lagos, Nigeria by

Permit.io is an authorization platform founded in 2021 that provides developers with a complete solution for implementing fine-grained access control in their applications. The platform offers a cloud

Persona is an identity verification and KYC platform that provides businesses with a configurable set of verification building blocks — government ID verification, selfie biometrics, database checks,

Photon Engine, developed by Exit Games, is a Hamburg-based game networking company that provides the most widely deployed real-time multiplayer networking SDK in the game development industry, support

Pier is a San Francisco-based credit-as-a-service API platform — backed by Y Combinator (W23) with $2.4 million in seed funding from Liquid 2 Ventures, YC, ACME, Horizon Ventures, and angels in early

Pipedream is a workflow automation platform built for developers, providing a low-code workflow builder alongside full support for writing custom Node.js, Python, Go, or Bash code within workflow step

Pirateship is a shipping software platform that provides small businesses and e-commerce sellers with access to deeply discounted USPS and UPS shipping rates that are typically only available to large

Plaid is a financial data infrastructure company that provides the API layer connecting financial applications to bank accounts and financial data. Founded in 2013 by Zach Perret and William Hockey, P

Planful is a Redwood City, California-based cloud financial planning and analysis (FP&A) platform providing mid-market and enterprise finance teams with integrated budgeting, forecasting, reporting, c

Play.ht is a Montreal-based AI voice generation company that provides text-to-speech technology with over 800 AI voices across 130 languages and an ultra-realistic voice cloning capability that can re

Pliant is a Berlin-based fintech company founded in 2020 that offers corporate credit cards and spend management software for startups, scale-ups, and growing businesses. The platform provides virtual

Plivo is a cloud communications platform headquartered in San Francisco with engineering operations in Bangalore, India, that was founded in 2011 by Venky Balasubramanian and Michael Ricordeau to prov

Polly is a capital markets technology company founded in 2019 by Adam Carmel and headquartered in San Francisco, California. The company builds a cloud-native SaaS platform designed to modernize the m

Portable is a data connector platform founded in 2021 and headquartered in Minneapolis, Minnesota. The company was built to solve the long-tail connector problem in the modern data stack: while Fivetr

Postman is the world's leading API development platform — providing the tools that 30 million+ developers use to design, build, test, document, and monitor APIs throughout the software development lif

Postmark is a transactional email delivery service founded in 2009 by Wildbit and subsequently acquired by ActiveCampaign, providing developers and product teams with a dedicated sending infrastructur

Prequel is a photo and video editing app for iOS and Android that provides film-like aesthetic filters, cinematic presets, analog film emulations, and AI-powered editing tools that transform smartphon

Primer is a no-code payment orchestration platform allowing enterprise merchants to manage their entire payment stack — processors, fraud tools, 3DS providers, and payment methods — through a visual w

Productfy is an embedded financial products platform that enables non-fintech companies — vertical SaaS businesses, marketplaces, and consumer apps — to add savings accounts, debit cards, and payment

Productive.io is a professional services automation (PSA) platform designed for agencies, consulting firms, and software development studios — combining project management, resource planning, time tra

Propexo is a Boston, Massachusetts-based commercial real estate API platform — backed by Y Combinator (W23) with $10 million in total funding including a $3.3 million seed from Prudence, Fifth Wall, Y

Prove Identity (formerly Payfone) is a leading identity verification and authentication platform that leverages carrier-sourced phone intelligence to confirm consumer identities in real time. Founded

Provet Cloud is a cloud-based veterinary information management system (VIMS) that provides veterinary practices with patient records, appointment scheduling, invoicing, pharmacy management, lab integ

Q2 Holdings is a financial technology company providing digital banking and lending platforms to banks, credit unions, and alternative financial institutions across the United States. Founded in 2004

Qrypt is a cybersecurity company founded in 2019 by Kevin Chalker, headquartered in New York City. The company specializes in quantum-safe cryptography — security protocols designed to withstand attac

QuestDB is a London, United Kingdom-based open-source time-series database — backed by Y Combinator (W20) with $14.4-18 million in total funding including a $12 million Series A in November 2021 from

Qwilt is an Israeli-American content delivery technology company founded in 2010 that has built the world''s most distributed content delivery network through its Open Edge Cloud platform. Rather than

Railsr (formerly Railsbank) is a global embedded finance platform that enables businesses to integrate banking, wallets, card issuance, and financial services into their own products via API. The comp

Rainforest is a fintech company providing embedded payment infrastructure for vertical software platforms, founded in 2022 and headquartered in Atlanta, Georgia. The company operates as a Payments-as-

RapidAPI is the world's largest API marketplace and developer hub, providing a platform where developers discover, connect to, and manage thousands of public and private APIs through a unified interfa

Rapyd is a global fintech-as-a-service platform providing payment infrastructure, issuing, banking, and compliance services that allow businesses to embed financial capabilities into their products ac

Rasa is an enterprise-focused open-source and commercial platform for building, deploying, and managing conversational AI agents. Founded in 2016 and based in San Francisco, Rasa enables developers an

Razorpay is India's leading full-stack payments and business banking platform, enabling businesses of all sizes to accept online payments, manage payouts, and access banking services through a single

ReadMe is a San Francisco-based developer experience company founded in 2014 that builds interactive API documentation portals for software companies that want to give developers a best-in-class onboa

Redocly is an API documentation and governance company founded in 2017 by the creators of the open-source ReDoc library, which became one of the most widely adopted open-source renderers for OpenAPI s

Redox is a cloud-based healthcare data exchange and interoperability platform that enables digital health companies, health tech vendors, and healthcare organizations to connect and exchange clinical

Regie.ai is a San Francisco-based AI sales engagement platform providing enterprise B2B sales teams with generative AI for prospecting email creation, sequence personalization, and sales content gener

RelationalAI is a cloud-native AI coprocessor company that embeds knowledge graph analytics, business rules, and relational intelligence directly within data clouds — primarily Snowflake — without req

Release is a United States-based Environments as a Service (EaaS) platform — backed by Sequoia Capital with seed funding — providing development teams with ephemeral, test, QA, and staging environment

Replicate is a San Francisco-based cloud platform that makes it easy to run and deploy machine learning models through a simple API — providing access to thousands of pre-trained open-source models (S

Resemble AI is a Toronto-based voice AI company that provides a comprehensive platform for custom voice creation, voice cloning, real-time voice conversion, and AI-generated audio detection. The compa

RevenueCat is a developer infrastructure company that provides a subscription management backend-as-a-service for mobile and web applications. Founded in 2018 and headquartered in San Francisco, Calif

ReversingLabs is a cybersecurity company founded in 2009 and headquartered in Cambridge, Massachusetts, with engineering roots in Zagreb, Croatia. The company specializes in software supply chain secu

Rho (formerly Rho Technologies) is a financial technology company founded in 2018 by Everett Cook and Alex Wheldon and headquartered in New York City. The company offers an integrated business banking

Ribbon Health aggregates and continuously cleans provider data — physician names, specialties, practice locations, insurance plans accepted, and availability — and delivers it through an API that heal

Ripple Labs is a San Francisco-based fintech company that builds blockchain-based payment infrastructure for financial institutions, banks, and payment providers. Founded in 2012, Ripple developed the

Rivery is a data pipeline and orchestration platform founded in 2018 and headquartered in Tel Aviv, Israel, with offices in New York City. The company was founded by Itamar Ben Hemo and Or Lenchner to

Rollbar is a real-time error monitoring and debugging platform that captures software exceptions, stack traces, and user context from web and mobile applications — enabling developers to identify, pri

Routable is an accounts payable and mass payments automation platform helping businesses streamline vendor payments, contractor payouts, and reimbursements. Founded in 2017 and based in San Francisco,

Routific is a route optimization software company founded in 2012 and headquartered in Vancouver, Canada. The platform uses machine learning and operations research algorithms to automatically generat

Rowy is an open-source low-code backend platform that brings a spreadsheet-like table interface to Firestore databases, allowing developers and technical team members to build backend automations, int

Ryvit is a purpose-built integration platform for the construction software ecosystem, solving the persistent challenge of connecting back-office ERP systems with the growing landscape of field and pr

Safepay is a Karachi, Pakistan-based payment processing company and Pakistan's first Y Combinator graduate fintech — backed by Y Combinator (W20) with $5.5 million in total funding from Stripe, Global

Salt Security is an API security platform that applies machine learning to API traffic analysis to address the three core challenges of enterprise API security: discovering the complete API attack sur

Scalar is an open-source API tooling company founded in 2023 that has rapidly gained traction in the developer community by delivering a visually polished and highly customizable alternative to the ag

Scoro is a business management platform designed for professional services companies — agencies, consultancies, and service firms — providing project management, resource planning, time tracking, bill

Sensible is a San Francisco-based document extraction API company that provides developers and technical teams with a configuration-driven approach to extracting structured data from PDFs and other do

SentiLink is a fraud prevention and identity intelligence company founded in 2017 by Naftali Harris and Maxwell Blumenfeld and headquartered in San Francisco, California. The company specializes in de

ShipHero is a dual-model logistics company that provides both warehouse management software (WMS) for 3PLs and brands running their own warehouses and an outsourced fulfillment network for brands that

Shippo is a multi-carrier shipping and fulfillment API platform enabling e-commerce businesses, developers, and platforms to compare rates, purchase labels, and track shipments across USPS, UPS, FedEx

Shiprocket is India's largest e-commerce logistics and shipping aggregator, enabling small and medium-sized businesses to access multi-courier shipping, warehousing, fulfillment, and cross-border logi

Sinch is a Stockholm-based cloud communications company that trades on Nasdaq Stockholm under the ticker SINCH and provides a customer communications cloud spanning SMS, voice, email, WhatsApp, RCS, a

Sivo is an embedded lending infrastructure platform that enables fintech companies and financial services startups to offer credit products to their customers without building their own loan originati

Skyflow is a data privacy company founded in 2019 by Anshu Sharma (former Salesforce SVP) and headquartered in Palo Alto, California. The company offers a data privacy vault — a dedicated, API-first i

Slash is a Los Altos-based fintech company providing comprehensive financial services and corporate cards for high-spending businesses — offering global payments, programmable corporate cards, real-ti

Slope is a B2B buy-now-pay-later (BNPL) and net terms payment platform enabling suppliers to offer flexible payment terms to business customers while receiving payment upfront. Founded in 2021 and hea

SmartBear is a software quality tooling company headquartered in Somerville, Massachusetts that provides a broad portfolio of products spanning API design and testing, visual testing, performance test

Smartcar is a San Francisco-based connected vehicle API company that has raised over $30 million from investors including New Enterprise Associates (NEA) and Andreessen Horowitz. Founded in 2015, Smar

Smartling is a translation management and localization technology company founded in 2009 by Jack Welde and Brian McDevitt and headquartered in New York City. The platform enables enterprise organizat

SnapLogic is a San Mateo, California–based enterprise software company founded in 2006 that provides an Intelligent Integration Platform as a Service (iPaaS). The platform enables data engineers, inte

SnapTrade is a brokerage API integration platform providing read and write access to retail brokerage accounts at 20+ major brokerages — enabling fintech companies and investment apps to connect to th

Snyk is a developer security platform that integrates security testing directly into the developer workflow — scanning code, open-source dependencies, container images, and infrastructure-as-code for

Socotra is a cloud-native insurance core platform (policy administration system) providing policy management, billing, claims, and distribution tools for insurance carriers and managing general agents

Solaris is a German Banking-as-a-Service (BaaS) company founded in 2016 and headquartered in Berlin, Germany. Licensed as a full credit institution under German banking law, Solaris provides an API-ba

Solid is a full-stack banking-as-a-service platform that provides fintech companies and enterprises with the infrastructure to build deposit accounts, card programs, and lending products through a uni

Solid Financial is a San Jose-based fintech infrastructure company that provides a platform for launching financial products — bank accounts, debit cards, ACH transfers, wire transfers, and spend mana

Solo.io is a cloud-native infrastructure software company that builds enterprise-grade API gateway, service mesh, and AI gateway products for platform engineering and DevOps teams. Founded in 2017 by

SparkPost is an email delivery platform headquartered in Columbia, Maryland that provides API-driven email sending infrastructure for high-volume transactional and commercial email use cases, operatin

Spotnana is a New York-based travel technology infrastructure company that is rebuilding the plumbing of corporate travel from the ground up on a cloud-native, API-first platform designed to replace t

Spreedly is a Durham, North Carolina-based payment orchestration company founded in 2008 that provides merchants with a PCI-compliant vault for securely storing payment credentials alongside a multi-g

Springverify is a technology-first employee background verification platform serving India and emerging markets, providing criminal checks, employment and education verification, address verification,

Stacker is a data journalism and content marketing platform that produces fact-based, data-driven news stories using publicly available datasets — generating thousands of articles annually about topic

Stainless is a developer tools company founded in 2022 that automates the generation of high-quality, idiomatic API client SDKs from OpenAPI specifications. The company addresses the significant engin

Stark Bank is a São Paulo, Brazil-based open banking API platform and digital business bank — backed by Y Combinator (W20) with $58.2 million in total funding including a $45 million Series B in April

StarTree is a real-time analytics database company built on Apache Pinot — the open-source distributed OLAP datastore originally developed at LinkedIn and used at scale by companies including Uber, Li

StayNTouch is a cloud-based property management system (PMS) for hotels and resorts, providing front desk operations, reservations, housekeeping management, and guest engagement tools through a modern

Stoplight is an API design and documentation platform founded in 2015 and headquartered in Austin, Texas, that pioneered the design-first API development workflow in which teams define their OpenAPI s

Strapi is a Paris, France-based open-source headless CMS company — backed with $49 million in total funding including a $31 million Series B in June 2022 led by CRV with Flex Capital, Index Ventures,

Stytch is an authentication infrastructure company founded in 2020 by former Plaid employees, raising $90M to build developer-friendly auth APIs that support modern passwordless authentication pattern

Superwall is a San Francisco-based mobile subscription paywall platform that enables iOS and Android app developers to remotely configure, test, and optimize their in-app subscription paywalls without

Sure is a Santa Barbara-based insurtech company that provides the technology infrastructure — or "rails" — that powers digital insurance programs for insurance carriers, managing general agents (MGAs)

Swagger (now part of SmartBear Software) is the world's most popular API development toolset — including Swagger UI (interactive API documentation), Swagger Editor (browser-based OpenAPI spec editor),

Swift is a San Francisco-based embedded finance platform — backed by Y Combinator (W24) with $2.34 million raised from 27 investors — enabling online merchants and e-commerce platforms to embed financ

Swoogo is an enterprise event management platform founded in 2015, built to give event teams complete flexibility and control over the registration, marketing, and operations of in-person, virtual, an

Synapse Financial was a prominent banking-as-a-service platform that provided fintech companies with the infrastructure to offer FDIC-insured deposit accounts, debit cards, and payment services throug

Synctera is a Banking-as-a-Service company founded in 2020 that takes a matchmaking approach to embedded finance by connecting fintech companies with community banks that serve as their banking sponso

Sysdig is a cloud and container security company founded in 2013 and headquartered in San Francisco, California. The company was created by Loris Degioanni, co-creator of Wireshark, and built around d

Talon.One is an API-first promotion and loyalty engine headquartered in Berlin, Germany. Founded in 2015 and having raised $71M in funding, Talon.One is designed for engineering and product teams at e

Teller is a US-focused banking API that gives developers direct, real-time access to bank account data and payment initiation without relying on screen scraping or batch-updated aggregation services.

Telnyx is a Chicago, Illinois-based cloud communications platform — privately held with $60+ million raised from investors including Salesforce Ventures, Felicis Ventures, and ICONIQ Growth — providin

The Graph is a decentralized indexing protocol that makes blockchain data queryable through standard GraphQL APIs, solving one of the most persistent engineering challenges in Web3 application develop

thirdweb is a full-stack Web3 development platform that provides the tooling layer for teams building on-chain applications, games, and commerce experiences. Its smart contract framework includes a li

Thoropass is a compliance automation platform founded to eliminate the manual audit burden that prevents fast-growing companies from achieving security certifications such as SOC 2, ISO 27001, HIPAA,

Thought Machine is a cloud-native core banking technology company headquartered in London, United Kingdom. Founded in 2014 by Paul Taylor, a former Google engineer, Thought Machine set out to build a

Thunes is a Singapore-headquartered global payment infrastructure company founded in 2016 by Peter De Caluwe and Floris De Kort. It operates a proprietary cross-border payment network that connects pa

Tinybird is a real-time data API platform that enables developers to transform data pipelines into published HTTP analytics APIs without writing backend infrastructure. The platform ingests data from

ToDesktop is a United Kingdom-based web-to-desktop application platform — backed by Y Combinator with $150,000 in total funding from Y Combinator and Frontline Ventures — providing developers with inf

Tomorrow.io is the world''s leading weather intelligence and climate resilience platform, combining proprietary satellite data, advanced AI modeling, and agentic decision support to help organizations

Traceable AI is an API security and observability platform that uses distributed tracing technology borrowed from application performance monitoring to build a comprehensive understanding of API traff

Transmit Security is an enterprise cybersecurity company specializing in customer identity and access management (CIAM). Founded in 2014, the company offers a unified platform that integrates identity

Travelport is a global travel technology company and one of the world's three major Global Distribution Systems (GDS) — alongside Amadeus and Sabre — that serves as the central infrastructure connecti

Tray.io is an enterprise integration platform as a service (iPaaS) that enables both internal IT and operations automation and embedded integration product development for SaaS companies. The platform

Treasury Prime is a San Francisco-based Banking-as-a-Service company that provides APIs connecting fintech companies and non-bank businesses with a curated network of FDIC-insured bank partners for em

Trigger.dev is an open-source background jobs and workflow platform built specifically for TypeScript and JavaScript developers who need to run long-running, durable async tasks from serverless and ed

TrueLayer is a European open banking platform providing payment initiation and account data APIs that allow businesses to accept bank payments, verify account ownership, and access financial data with

Trulioo is a global identity verification and compliance company founded in 2011 by Tanis Jorge and Stephen Ufford, headquartered in Vancouver, Canada. The company provides a unified platform for Know

Turvo is a collaborative logistics platform founded in 2015 and headquartered in Dallas, Texas, built around the premise that the freight industry's inefficiency stems from siloed, disconnected system

Tyfone is a digital banking technology company headquartered in Portland, Oregon, focused exclusively on serving credit unions and community financial institutions. Founded in 2004, Tyfone developed t

Tyk is an open-source API gateway and management platform used by enterprises and mid-market companies to publish, secure, monetize, and monitor their APIs. First released in 2014, Tyk has grown into

Typesense is an open-source search engine built for developer simplicity and millisecond search latency, designed as an accessible alternative to Elasticsearch and a self-hostable alternative to Algol

Unified.to is a unified API aggregation platform that gives developers a single interface for integrating with CRM, ATS, HRIS, accounting, marketing, and ticketing tools. Rather than building bespoke

Union54 is a Lusaka, Zambia-based fintech company — backed by Y Combinator — operating ChitChat, an integrated messaging and digital payments platform that combines secure instant messaging with USD d

Unit is a banking-as-a-service platform enabling fintech companies and software businesses to embed banking, card, and payment products into their applications through a single API. Founded in 2019 an

Unleash is an open-source feature management and feature flag platform founded in 2015 in Trondheim, Norway. It enables software engineering teams to separate code deployment from feature release, all

Upsun is a cloud application platform-as-a-service (PaaS) that provides automated infrastructure, Git-based workflows, and deployment pipelines for application development teams. The company operates

Uscreen is a video monetization and OTT platform that enables individual creators, brands, and media companies to launch their own subscription video streaming services without building custom infrast

Userback is a visual feedback and bug reporting platform that allows end users to annotate screenshots, record short screen sessions, and submit structured feedback directly from within a web applicat

Venly is a blockchain API and wallet infrastructure provider designed to help non-crypto-native businesses integrate Web3 features into their existing digital products. Its Wallet API enables companie

Versori is a London-based agentic integration platform enabling businesses to build, deploy, and manage custom software integrations and automation workflows through a no-code, AI-powered environment

Vessel is a developer tools company founded in 2022 that provides unified APIs for CRM and sales technology integrations, allowing B2B SaaS products to connect with customers' Salesforce, HubSpot, Pip

Vetstoria is a real-time online appointment booking platform built specifically for veterinary practices, enabling pet owners to book appointments online 24/7 through a clinic's website without phone

Viator is the world's leading online marketplace for tours, activities, and travel experiences, founded in 1999 in Brisbane, Australia, and acquired by Tripadvisor in 2014. The platform lists over 300

VideoSDK is a real-time communication infrastructure platform that provides developers with low-code SDKs and APIs for building video and audio features into web and mobile applications. The platform

Virtru is a Washington, DC-based cybersecurity company founded in 2012 by brothers John and Will Ackerly. Will Ackerly previously served as a cloud security engineer at the NSA, where he helped develo

Volante Technologies is a global provider of cloud-native payments and financial messaging solutions, serving financial institutions seeking to modernize their payment infrastructure. Founded in 2001

Volopay is a Singapore-based business spend management platform that provides corporate cards, expense management, reimbursements, and accounts payable automation to companies across Southeast Asia, I

Wasp is a Zagreb, Croatia-based full-stack web development framework — backed by Y Combinator (W21) with $5.2 million in total funding including a $3.7 million round in late 2024 led by HV Capital wit

Whalesync is a San Francisco-based no-code data synchronization platform providing bi-directional real-time sync between popular business tools — Airtable, Notion, HubSpot, Webflow, PostgreSQL, and ot

Whereby is a video meetings platform that offers both a standalone web meeting product and an embeddable API — Whereby Embedded — that allows businesses to add video call functionality to their own we

Widen is a Madison, Wisconsin-based digital asset management and product information management (PIM) platform that was acquired by Acquia, the open digital experience company, in 2021. The platform p

Windmill is an open-source developer platform founded in 2022 that enables engineering teams to turn scripts written in Python, TypeScript, Go, Bash, or SQL into fully operational internal tools, sche

WSO2 is an enterprise software company providing an open-source platform for API management, integration middleware, and identity and access management (IAM). Founded in 2005 by Sanjiva Weerawarana an

xPay is a San Francisco-based international billing operations platform for SaaS companies — handling the complexity of cross-border subscription billing, sales tax and VAT compliance, and payment loc

Yuno is a payment orchestration startup founded in 2021 by Juan Pablo Ortega and Julián Domínguez, with roots in Latin America and a global headquarters in the United States. Its core product is a uni

Zammad is a Berlin-based open-source helpdesk and ticketing platform developed by Zammad Foundation GmbH and founded in 2016 by the creators of the OTRS helpdesk system. The platform provides organiza

ZenML is a Munich-based MLOps company that develops an open-source framework for building machine learning pipelines that are portable, reproducible, and infrastructure-agnostic — enabling data scient

Zero Hash is a B2B embedded crypto infrastructure company that enables banks, brokerages, fintechs, and enterprise platforms to natively integrate digital assets — including crypto trading, stablecoin

Zeta is a banking technology company co-founded in 2015 by Bhavin Turakhia and Ramki Gaddipati, headquartered in San Francisco with significant operations in India. The company builds a cloud-native O

Zeta Tech is a modern banking technology company providing cloud-native core banking and card processing infrastructure to banks, financial institutions, and fintechs globally. Founded in 2015 by Bhav

Zuplo is an API gateway and management platform founded in 2021 that runs on Cloudflare's global edge network to provide sub-millisecond API security and management capabilities for developers and pla