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Top Series C companies in San Francisco

Companies that have closed a Series C - growth-stage with significant revenue. Filtered to companies headquartered in San Francisco.

Built from a search like: Top Series C companies in San Francisco

Ranked by current headcount across Series C companies headquartered in San Francisco. Refreshed monthly.

  1. 1
    Remote· San Francisco, California, United States

    Global employment runs on Remote. Employing and paying people across borders is complex. Every country has different employment laws, tax codes, payroll rules, and compliance requirements. Getting it wrong has real legal and financial consequences.Remote is the intelligent infrastructure built to solve exactly this. One system of record for EOR, global payroll, PEO, contractor management, and compliant payments, worldwide. In-house experts in every country we operate in, infrastructure we own and run ourselves. Built to connect with any HRIS, tool, or AI agent your business already runs on.The infrastructure trusted by the world's leading HR platforms for global payroll and EOR. A regulated payments institution with owned entities operating across the world.This is not software. This is infrastructure... so the world can get to work.To learn more or book a demo, visit remote.com. To join our team, visit remote.com/careers.

    • Series C
    • 18.8k employees
    • Founded 2019
  2. 2
    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
    • 14.5k employees
    • Founded 2011
  3. 3
    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
    • 11.1k employees
    • Founded 2023
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  5. 4
    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
    • 5k employees
    • Founded 2020
  6. 5
    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
    • 4.4k employees
    • Founded 2011

Find engineers at Series C companies in San Francisco

Series C companies in San Francisco are some of the fastest-moving employers in the market. The list above ranks the largest Series C-stage companies headquartered in San Francisco by current headcount, drawn from public LinkedIn and Crunchbase records. With 261 matching companies in Refolk’s index, the density of senior engineers, designers, and founders is unusually high.

At Series C, teams tend to be small, ambitious, and on the hunt for senior talent. The companies on this list are good signals for where the San Francisco talent market is heating up - and for which engineers and founders are about to become tomorrow’s operators.

Refolk converts this list into a live search. Ask for “founders of Series C companies in San Francisco” or “senior engineers at Series C companies in San Francisco hiring” and Refolk returns a ranked shortlist with evidence behind each match.

How this list is built

Refolk pulled Series C companies headquartered in San Francisco from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes monthly.

Last refreshed: Tue, 15 Sep 2026 17:16:10 GMT

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How is this ranking built?

The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.

How fresh is the data?

The underlying index updates continuously and this ranking is rebuilt monthly. Last refreshed: Tue, 15 Sep 2026 17:16:10 GMT. For a list built against the index as it stands today, sign up and run the search live.

Can I get the full list of 261 companies?

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