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Series B SaaS companies in San Francisco

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

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Built from a search like: “Top Series B SaaS companies in San Francisco”

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

  1. 1
    Outlier· San Francisco, California, United States
    • Series B
    • 28.5k employees
    • Founded 2023
  2. 2
    Railway· San Francisco, California, United States
    • Series B
    • 11k employees
    • Founded 2020
  3. 3
    GitHub· San Francisco, California, United States
    • Series B
    • 6.4k employees
    • Founded 2008
  4. 4
    Driver· San Francisco, California, United States
    • Series B
    • 6.4k employees
    • Founded 2015
  5. 5
    Eco· San Francisco, California, United States
    • Series B
    • 1.4k employees
    • Founded 2018
Reveal 292 more·100 free credits, no card

Find engineers at Series B SaaS companies in San Francisco

Searching for “engineers at top Series B 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 B, by current headcount, drawn from public LinkedIn and Crunchbase records. With 297 matching companies in our 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 B, 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 B SaaS companies in San Francisco hiring” or “founders of Series B 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 B 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: Sun, 21 Jun 2026 07:18:47 GMT

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