7 API companies in San Francisco.
By the Numbers
Funding
Gigs
San Francisco
Gigs is building the operating system for mobile services, enabling tech companies to embed connectivity and automate phone-plan provisioning for fintechs and HRIS platforms. Backed by nearly $100 million from Ribbit Capital, Google, and Y
MERGE
Merge is a leading provider of customer-facing integrations and agent tools for frontier LLMs, serving thousands of customers including Fortune 500s and B2B SaaS firms, with offices in San Francisco, New York, and Berlin.
Recall.ai
Recall.ai provides infrastructure for processing meeting data and metadata, enabling enterprises to analyze and derive insights from meetings. Founded in 2020 and headquartered in San Francisco, it serves over 1,000 customers.
Stainless
✱ Stainless provides robust & polished SDKs for your REST API.They're idiomatic, type-safe, and engineered to feel like handwritten code.API-first companies like OpenAI, Anthropic, Meta, Cloudflare, and Scale use Stainless to generate SDKs
Column Tax
Column Tax democratizes access to financial help by delivering game-changing tax solutions for everyday people, highlighting gaps in financial guidance and the need for affordable tax support (over 100 million Americans can’t cover a $1,000
Agave
Agave is an early-stage company modernizing the construction industry. With a 10-year founding team from Graphiq/Amazon, it has raised $3M from YC, Accel, and industry leaders, serves 200+ paying customers, is cash-flow positive, and target
Pier
Pier is a fintech compliance platform for license management and regulatory reporting, enabling the next generation of financial services providers and expanding financial access for Americans. It has an oversubscribed round from top-tier v
