Series C Developer tools companies in San Francisco

Twitch is where thousands of communities come together for whatever, every day. Together for streamers. Together for games we love. Together for each other.

• Series C
• 14.5k employees
• Founded 2011

We find the best experts in every professional domain and put their knowledge to work training frontier models. Through APEX, we measure whether those models can actually perform economically valuable work. We're also bringing that expertise to enterprises: deploying custom AI agents, staffing teams with vetted domain experts, and helping organizations encode their own knowledge into AI systems.

• Series C
• 11.1k employees
• Founded 2023

Drata provides the trust network that enables businesses to operate, scale, and partner with confidence. Powered by AI and designed to operationalize trust, the Drata Agentic Trust Management Platform continuously interprets controls, risk, and assurance signals—reducing repetitive manual work while improving visibility into internal and third-party risk, enabling always-on audit readiness across compliance frameworks, and accelerating security reviews.Purpose-built for enterprise complexity, Drata unifies governance, risk, compliance, and assurance to deliver faster time-to-value, reduce operational overhead, and enable continuous trust for 8,000+ organizations worldwide.

• Series C
• 5k employees
• Founded 2020

Miro is the collaborative workspace where agents and teams converge to think, decide, and build together. As AI accelerates work, the challenge for organizations isn't doing more; it's turning individual output into scaled impact. Serving more than 100 million users across 250,000 customers, Miro’s shared, secure canvas surfaces the context that empowers teams to solve harder problems, make better decisions, and move work forward faster. Founded in 2011, Miro currently employs 1,600 people in 13 hubs around the world.

• Series C
• 4.4k employees
• Founded 2011

Crescendo is the AI-Native Customer Experience Platform. It runs a company's entire customer experience operation on one platform that continuously improves.The story behind it is generational. CX software had a 30-year run on architecture built for humans managing processes. That era is ending. Legacy vendors are now bolting AI onto foundations that were never designed for it — which doesn't make them AI-native, it just makes them slower to replace. Crescendo was built from the ground up assuming AI does the work, with a self-improving system that compounds with every conversation and a deployed team that stays accountable after go-live

• Series C
• 2.3k employees
• Founded 2024