Series C Developer tools companies in San Francisco

IDEs, runtimes, frameworks, and platforms built primarily for engineers. Filtered to Series C-stage companies headquartered in San Francisco.

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Ranked by current headcount across Series C Developer tools companies in San Francisco. Refreshed daily.

1
Twitch· San Francisco, California, United States
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
- 14.9k employees
- Founded 2011
2
Mercor· San Francisco, California, United States
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
- 8.7k employees
- Founded 2023
3
Miro· San Francisco, California, United States
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
- 2.8k employees
- Founded 2011
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4
Factory· San Francisco, California, United States
Factory is an AI research lab, bringing autonomy to software engineering with Droids.
- Series C
- 1.4k employees
- Founded 2023
5
Docker, Inc· San Francisco, California, United States
At Docker, we simplify the lives of developers who are making world-changing apps. Docker helps developers bring their ideas to reality by conquering the complexity of app development. We simplify and accelerate workflows with an integrated development pipeline and application components. Actively used by millions of developers around the world, Docker Desktop and Docker Hub provide unmatched simplicity, agility and choice.
- Series C
- 1.1k employees
- Founded 2013

6
Trusted Health· San Francisco, California, United States
Workforce management in healthcare is hard. We're solving it.Trusted Health is the leading AI-first healthcare workforce solution, built to help health systems and clinicians thrive.For Health Systems Our Works platform is a complete workforce management solution that helps you:- Reduce premium labor costs by automating shift-filling across all workforce groups - core staff, direct flex pools and contingent labor.- Improve manager efficiency, giving them back hours each week to focus on their teams and patients.- Drive clinician loyalty and retention by facilitating the creation and management of direct-relationship, flexible work options that are in demand.For CliniciansYour career, on your terms. The Trusted Marketplace is the most intuitive platform for finding and booking travel and local assignments, providing:- Total transparency: See all the details upfront with no pressure from commission-based recruiters.- Seamless experience: Book assignments faster with our AI-enabled profile and credentialing process.- 24/7 support: Our team of licensed Clinical Advocates is here for you every step of the way.
- Series C
- 894 employees
- Founded 2017
7
Omni· San Francisco, California, United States
Omni is an AI analytics platform that empowers everyone—regardless of technical ability—to easily analyze data using AI, spreadsheets, SQL, or point-and-click interfaces. It is built on a semantic layer that makes sure every insight is accurate and dependable. Beyond powering internal analytics, Omni makes it easy for businesses to offer highly customizable in-product analytics to their customers.
- Series C
- 847 employees
- Founded 2022
8
Anyscale· San Francisco, California, United States
Anyscale enables Python developers to build and run all their AI—from data prep to training and inference—at any scale. Anyscale is trusted by leading AI teams at Canva, TripAdvisor, Physical Intelligence, Coinbase and more.
- Series C
- 778 employees
- Founded 2019
9
Mixpanel· San Francisco, California, United States
Mixpanel turns data clarity into innovation. Trusted by more than 29,000 companies, including Workday, Pinterest, LG, and Rakuten Viber. Mixpanel’s AI-first digital analytics help teams accelerate adoption, improve retention, and ship with confidence. Powering this is an industry-leading platform that combines product and web analytics, session replay, experimentation, feature flags, and metric trees. Mixpanel delivers insights that customers trust. Visit http://mixpanel.com to learn more.
- Series C
- 752 employees
- Founded 2009
10
Drata· San Francisco, California, United States
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
- 662 employees
- Founded 2020

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Find engineers at Series C Developer tools companies in San Francisco

Searching for “engineers at top Series C Developer tools companies in San Francisco” surfaces this slice of the market. The list above ranks Developer tools companies headquartered in San Francisco whose latest disclosed round is Series C, by current headcount, drawn from public LinkedIn and Crunchbase records. With 108 matching companies in Refolk’s index, this is a tight read on where the Developer tools talent in San Francisco is heating up.

Three filters at once narrows the field hard. The companies that survive all three - Series C, Developer tools, in San Francisco - are usually the most targeted recruiting pool a hiring manager can ask for. Senior engineers, founding designers, and product leads here are about to become Developer tools’s next operators and angel investors.

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Refolk pulled Developer tools companies headquartered in San Francisco whose latest disclosed funding round is Series C from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 3 employees. The list refreshes once a day.

Last refreshed: Wed, 05 Aug 2026 12:17:14 GMT

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