Side-by-side comparison of AI visibility scores, market position, and capabilities
London YC W20 fastest-growing open-source time-series database with 15K+ GitHub stars; $14.4M total ($12M Series A Nov 2021) with SIMD vector SQL serving investment banks and hedge funds competing with InfluxDB for high-frequency time-series.
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 Intel Ignite, Approx.vc, New Forge, and 468 Capital — providing financial services companies, IoT operators, and data infrastructure teams with the fastest time-series database globally (as measured by DB-Engines growth ranking), achieving 15,000+ GitHub stars through column-oriented storage, parallelized vector execution, SIMD CPU instructions, and low-latency SQL queries that enable blazingly fast ingestion and analysis of time-stamped data. Founded in 2019, QuestDB serves Tier 1/2 investment banks, leading hedge funds, national stock exchanges, and major crypto firms where microsecond-level query performance on time-series data is operationally critical.
SF webhooks-as-a-service platform delivering billions of webhooks with reliability guarantees for Fortune 500 to startups; YC W21 $13M a16z Series A competing with Hookdeck for developer webhook infrastructure.
Svix is a San Francisco-based webhooks infrastructure platform — backed by Y Combinator (W21) with $13 million raised including a $10.4 million Series A in February 2023 led by Andreessen Horowitz with Y Combinator, Aleph, and angels including founders and CTOs of GitHub, PagerDuty, Segment, and Lookout — providing SaaS companies and API-driven products with enterprise-ready webhook delivery infrastructure (both open-source self-hosted and cloud-managed) that handles the reliability, scalability, security, and developer experience requirements of sending billions of webhooks to customers, eliminating the webhook infrastructure engineering that currently requires 2-4 months of developer time to build correctly. Founded in 2021 and serving Fortune 500 enterprises to startups, Svix enables companies to ship webhook functionality to customers in days rather than months.
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