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Stark Bank

Leader

São Paulo Brazil YC W20 open banking API at 155B BRL ($31B) payments 2023 with 3x YoY growth and doubled net income; $58.2M total ($45M Ribbit/Bezos Series B 2022) serving Gol/Localiza/QuintoAndar competing for Brazil fintech infrastructure.

83
AI Score
Grade A
AI Visibility Score (Beta)
Financial ServicesWebsiteUpdated March 2026

Brand Intelligence Graph

Company Overview

About Stark Bank

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 2022 led by Ribbit Capital with Lachy Groom and Bezos Expeditions (Jeff Bezos's personal investment vehicle) — providing companies with payment processing infrastructure, banking APIs, and financial services built on Brazil's open banking framework. In 2023, Stark Bank processed 155 billion reais ($31 billion USD) in payments (3x year-over-year growth), doubled net income to 71.5 million reais, and serves 600+ enterprise clients including Gol Airlines, Localiza, Ultragaz, Loft, and QuintoAndar. Founded in 2018 by Rafael Stark.

Business Model & Competitive Advantage

Stark Bank's open banking infrastructure platform addresses the API access gap that limits Brazilian fintech development: Brazil's Central Bank mandated open banking (Pix instant payments, open banking data sharing, DREX digital currency preparation) creates a regulatory environment where financial infrastructure must be API-accessible — but most Brazilian banks expose these capabilities through outdated APIs with unreliable documentation and poor developer experience. Stark Bank's developer-first banking API (clean REST API for Pix transfers, boleto payment generation, TED/TEF transfers, receivables discounting, and corporate card issuance) gives fintech developers and technology companies the programmable banking access that traditional banks' corporate accounts don't provide. The B2B model (companies pay for API access and transaction volume, not retail accounts) focuses Stark Bank's product quality on the developer and treasury use case.

Competitive Landscape 2025–2026

In 2025, Stark Bank competes in the Brazilian fintech infrastructure, open banking API, and business banking market with Nubank Business (NASDAQ: NU, business accounts from Brazil's largest neobank), Celcoin (financial infrastructure API, $120M raised), and Dock (financial infrastructure, $110M raised) for Brazilian company API-based payment processing and programmable banking platform adoption. Ribbit Capital's Series B leadership (Ribbit is a leading fintech VC with Nubank, Robinhood, and Coinbase investments) and Jeff Bezos's personal investment reflect both fintech infrastructure conviction and corporate development potential. The 3x payment volume growth (155B BRL in 2023) and profitability demonstrate sustainable business model scaling. The 2025 strategy focuses on expanding the DREX (Brazil's digital real) infrastructure readiness for Central Bank digital currency settlement, building the treasury management platform for corporate cash management beyond payments, and growing the enterprise ERP integration (SAP, Oracle NetSuite) for automated AP/AR payment processing.

Founded
2018
Headquarters
Paulo, Brazil
Curated content • Fact-checked and verified

Recent Activity

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B2B Summit mostra como IA, dados e novas jornadas de compra estão redesenhando o B2B

Em diferentes palestras, o evento colocou em discussão temas que já estão alterando a operação comercial, da inteligência artificial e do ABM à governança de dados, geração de demanda, retenção e gestão de equipes. Durante...

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Agentes de IA em vendas B2B: o dado certo começa a definir quem merece a atenção do vendedor

Durante o B2B Summit, Paulo Krieser, CEO e cofundador da Econodata, mostrou como agentes de inteligência artificial já estão assumindo etapas da operação comercial, da qualificação à análise de pipeline, e por que a qualidade...

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Faturamento hospitalar: como mitigar glosas e otimizar o ciclo de receita com automação financeira

Aprenda como otimizar o faturamento hospitalar, reduzir glosas de convênio e automatizar a conciliação bancária de forma síncrona via API Quando se trata de faturamento hospitalar, a falta de automação financeira pode representar um desafio...

blog_post
Da representatividade ao poder de decisão: os desafios da liderança feminina

Painel com participação de Marcela Rezende, CMO do Stark Bank, debateu os desafios da liderança feminina, o papel da diversidade nas empresas e o poder de transformar representatividade em decisões A presença de mulheres em...

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Split de pagamento: como automatizar a liquidação em marketplaces e e-commerces sem bitributação

Entenda como o split de pagamento automatiza a divisão de vendas em marketplaces e e-commerces. Evite a bitributação e integre sua API em tempo real Para uma plataforma que vende por meio de vários lojistas...

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Cartão para logística e frotas: como gerenciar despesas de campo em escala com cartões corporativos e APIs

Gerencie despesas de motoristas e frotas de logística em tempo real. Emita cartões corporativos ilimitados por API com a tecnologia do Stark Bank Quem roda com dezenas ou centenas de veículos na estrada conhece o...

8-K
8-K — 8-K

Material Event filed 2026-08-07

10-Q
10-Q — 10-Q

Quarterly Report filed 2026-08-07

blog_post
Sistemas de reembolso: como acabar de vez com a prestação de contas manual

Veja como substituir sistemas de reembolso pelo cartão corporativo do Stark Bank e reduzir custos de prestação de contas com limites dinâmicos Se a sua empresa ainda depende de sistemas de reembolso para pagar as...

blog_post
Cartão virtual dinâmico para empresas: como proteger as compras online contra fraudes

Entenda como o cartão virtual dinâmico protege as compras da sua empresa contra fraudes, com CVV rotativo, limites por API e conciliação automática Imagine que um fornecedor pequeno de SaaS que a sua empresa utiliza...

8-K
8-K — 8-K

Material Event filed 2026-08-03

blog_post
Gestão de assinaturas (SaaS): como auditar custos de software e cortar cobranças fantasmas com cartões virtuais corporativos

Descubra como fazer a gestão de assinaturas (SaaS) da sua empresa: audite custos, corte cobranças fantasmas e automatize cancelamentos com cartões virtuais A gestão de assinaturas (SaaS) virou uma das linhas de despesa que mais...

Key Differentiators

Market Leader

Stark Bank is recognized as a market leader in the Finance sector, demonstrating strong industry presence and customer trust.

Frequently Asked Questions

Estimated Visibility Trend (Beta)

Simulated 8-week rolling score

83
→ Stable

Based on estimated brand signals. Historical tracking coming soon.

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