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 daily.

1
Twitch· San Francisco, California, United States
- Series C
- 17.5k employees
- Founded 2011
2
Remote· San Francisco, California, United States
- Series C
- 14.2k employees
- Founded 2019
3
Mercor· San Francisco, California, United States
- Series C
- 5.2k employees
- Founded 2023
4
Clipboard· San Francisco, California, United States
- Series C
- 3.4k employees
- Founded 2016
5
Miro· San Francisco, California, United States
- Series C
- 2.6k employees
- Founded 2011
6
WRITER· San Francisco, California, United States
- Series C
- 2.4k employees
- Founded 2020
7
Crescendo· San Francisco, California, United States
- Series C
- 2.2k employees
- Founded 2024
8
LiveRamp· San Francisco, California, United States
- Series C
- 1.5k employees
- Founded 2011
9
Mercury· San Francisco, California, United States
- Series C
- 1.5k employees
- Founded 2017
10
Military.com· San Francisco, California, United States
- Series C
- 1.1k employees
- Founded 1999
11
Docker, Inc· San Francisco, California, United States
- Series C
- 991 employees
- Founded 2013
12
Trusted Health· San Francisco, California, United States
- Series C
- 886 employees
- Founded 2017
13
Super.com· San Francisco, California, United States
- Series C
- 861 employees
- Founded 2016
14
Future· San Francisco, California, United States
- Series C
- 745 employees
- Founded 2017
15
Omni· San Francisco, California, United States
- Series C
- 725 employees
- Founded 2022
16
Drata· San Francisco, California, United States
- Series C
- 693 employees
- Founded 2020
17
Anyscale· San Francisco, California, United States
- Series C
- 641 employees
- Founded 2019
18
Mixpanel· San Francisco, California, United States
- Series C
- 606 employees
- Founded 2009
19
Two Chairs· San Francisco, California, United States
- Series C
- 599 employees
- Founded 2017
20
Atlan· San Francisco, California, United States
- Series C
- 580 employees
- Founded 2019
21
Starship Technologies· San Francisco, California, United States
- Series C
- 560 employees
- Founded 2014
22
Mural· San Francisco, California, United States
- Series C
- 546 employees
- Founded 2011
23
Quizlet· San Francisco, California, United States
- Series C
- 535 employees
- Founded 2005
24
Gorgias· San Francisco, California, United States
- Series C
- 524 employees
- Founded 2015
25
SmithRx· San Francisco, Minnesota, United States
- Series C
- 515 employees
- Founded 2016

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 263 matching companies in our 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 Franciscotalent 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 once a day.

Last refreshed: Thu, 07 May 2026 06:09:36 GMT

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