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Series C SaaS companies in San Francisco

Software-as-a-service vendors selling subscription cloud software to other businesses. Filtered to Series C-stage companies headquartered in San Francisco.

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

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

  1. 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. 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. 3
    Clipboard· San Francisco, California, United States

    Our Why:At Clipboard, our mission is to uplift as many communities as possible. We do this by connecting healthcare professionals with the workplaces that need amazing workers, helping people achieve financial stability for themselves and their families while providing essential care to people all across the U.S.Our How:Clipboard is an app-based marketplace where workplaces post calls for help and workers answer. Every year, we help hundreds of thousands of workers fill millions of shifts across the U.S. We’re the leader in Long-Term Care staffing and are rapidly expanding into Home Health, Hospitals, and more.Our Team:Founded in 2016, we are a remote-first team of over 1,000 people working to uplift communities across the country.Today, healthcare facilities and schools are understaffed, which can result in poor patient care, student outcomes, and employee burnout. Meanwhile, local professionals have time and want to pick up extra shifts. These two parties don’t know each other and aren’t sure if they can work together (licenses, qualifications, or even trust might get in the way). Clipboard exists to solve this problem.

    • Series C
    • 4k employees
    • Founded 2016
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  5. 4
    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
  6. 5
    Crescendo· San Francisco, California, United States

    AI has created a real opportunity to transform customer experience. But for most organizations, deploying AI was the easy part.The hard part is operating it – across multiple channels, alongside human agents, through constant changes in products, policies, and customer expectations. Most CX operations were never built for this, and the result is AI that stalls, fragments, and underdelivers.Crescendo is built for what comes after deployment.We combine autonomous AI technology with embedded CX expertise to run your entire customer experience operation as one continuously improving system. AI and humans on the same knowledge. The same operating model. Accountable for the same outcomes.Customers typically go live in 3.5 weeks, see 95% CSAT, and cut operating costs by 31%.This is what AI-Native CX looks like.One System. Smarter CX.

    • Series C
    • 2.3k employees
    • Founded 2024

Find engineers at Series C SaaS companies in San Francisco

Searching for “engineers at top Series C SaaS companies in San Francisco” surfaces this slice of the market. The list above ranks SaaS companies headquartered in San Francisco whose latest disclosed round is Series C, by current headcount, drawn from public LinkedIn and Crunchbase records. With 151 matching companies in Refolk’s index, this is a tight read on where the SaaS talent in San Francisco is heating up.

Three filters at once narrows the field hard. The companies that survive all three - Series C, SaaS, 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 SaaS’s next operators and angel investors.

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

How this list is built

Refolk pulled SaaS 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 12:22:45 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.

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