Recently funded Series B startups in San Francisco, California

Adamlead tracks 46 Series B startups in San Francisco, California, with 67 contacts on file. Together they report $3.4B in funding, the newest round dated Sep 30, 2026. The median company employs 137 people. Browse them below, newest rounds first, or sign up to reveal verified contacts across the segment.

Funding on file

$3.4B

across 46 companies reporting an amount · newest round Sep 30, 2026

Median company size

137 employees

Funding stages

Series B · 46

Company sizes

51-200 · 2911-50 · 13201-500 · 4

Latest rounds in this segment

Showing 20 of 46 companiesSign up to see all companies

Company	Size	Location	Last round	Contacts
Convex	11-50	San Francisco, United States	Aug 4, 2026	4
LangChain	201-500	San Francisco, United States	Oct 20, 2025	4
Campfire	51-200	San Francisco, United States	Oct 15, 2025	3
Flex	51-200	San Francisco, United States	Jul 14, 2026	2
Vapi	51-200	San Francisco, United States	May 12, 2026	2
Atlys	51-200	San Francisco, United States	Sep 2, 2024	2
Harmonic	11-50	San Francisco, United States	Jul 10, 2025	2
CodeRabbit	201-500	San Francisco, United States	Sep 16, 2025	2
Squint	51-200	San Francisco, United States	Aug 12, 2025	2
MarqVision	51-200	San Francisco, United States	Sep 15, 2025	2
Doss	51-200	San Francisco, United States	Mar 24, 2026	2
Braintrust	51-200	San Francisco, United States	Feb 18, 2026	2
Sesame AI	51-200	San Francisco, United States	Oct 21, 2025	2
Micro1	51-200	San Francisco, United States	Sep 22, 2026	2
Zama	51-200	San Francisco, United States	Jun 25, 2025	2
Armada	201-500	San Francisco, United States	May 19, 2026	2
Ansa Biotechnologies	11-50	San Francisco, United States	Oct 1, 2025	2
Krea	11-50	San Francisco, United States	Apr 7, 2025	2
Kindred	51-200	San Francisco, United States	Feb 3, 2026	2
Reducto	51-200	San Francisco, United States	Oct 14, 2025	2

Common roles in this segment

CEOs CTOs CFOs CMOs Heads of Marketing Heads of Sales Heads of Engineering Heads of Product

Series B startups in other cities

Series B in New York, New York Series B in Palo Alto, California Series B in London, England

Other stages in San Francisco, California

Series A in San Francisco, California Seed in San Francisco, California Series C in San Francisco, California Series D in San Francisco, California Venture in San Francisco, California

Broaden the search

All Series B startups All startups in San Francisco, California

Frequently asked questions

How many Series B startups in San Francisco, California are there?+

Adamlead currently tracks 46 Series B startups in San Francisco, California, each with a known funding date. The list grows as new rounds are reviewed and added.

How much have Series B startups in San Francisco, California raised?+

The 46 that disclose an amount have raised $3.4B in total. Undisclosed amounts are left out rather than estimated.

Can I get contact details for these companies?+

Yes. Start a 7-day free trial and reveal a decision-maker's email for one credit; the trial includes 25 reveals. Every email carries a status and a confidence score.

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