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Active: new fund Oct 2025 Verified 4 Nov 2026

SignalFire

San Francisco venture firm built as a technology company, supporting founders with data and advice from seed to scale across enterprise and consumer.

Type
VC firm
Location
San Francisco, California, United States
Stages
Seed, Series A, Series B, Growth
Backs
B2B software
Sectors
AI, Healthtech and life sciences, Devtools, B2B, Consumer, Fintech, Cybersecurity, Marketplace
Fund size / AUM
$357M Signalfire Breakout Fund III (Form D amount sold, 2021)
Latest fund or filing
22 May 2026
Portfolio mix
B2B software 60%; Medtech and digital health 10%; Biotech and pharma 7%; Crypto and web3 7%; Consumer apps 7%; Deep tech 3%; Fintech 3%; Hardware 3% (n=30)

Fund filings (SEC Form D)

Latest fund on file
SignalFire Eureka Fund
Filed
22 May 2026 (amendment)
Fund size
$150M (amount sold)
Fund vehicles filed in the last 12 months
1 (includes feeder and parallel vehicles)

See this fund's filings on SEC EDGAR

Contacts on file

For SignalFire, the paid file holds: 8 named decision-makers with roles; LinkedIn page.

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Notable investments

Flock FreightHealth GorillaAffinitiAlchemyAll

Sources

Last checked 4 Nov 2026. Is something wrong? Tell us.

Appears in 122 lists

Series B marketplace investors (16)Series A marketplace investors in the US (16)Marketplace investors in California (17)Series B developer tools investors in the US (21)Growth-stage marketplace investors (22)Growth-stage developer tools investors in the US (24)Series B developer tools investors (27)Series B B2B investors in the US (27)Series B consumer investors in the US (29)Seed marketplace investors in the US (32)Series B cybersecurity investors in the US (37)Growth-stage developer tools investors (39)Series A marketplace investors (42)Marketplace venture capital firms in the US (45)Series B B2B investors (46)Series A developer tools investors in the US (50)Growth-stage B2B investors in the US (54)Growth-stage cybersecurity investors in the US (55)Series B consumer investors (59)Series B fintech investors in the US (59)Series B investors in California (60)Growth-stage consumer investors in the US (60)Series A cybersecurity investors in the US (64)Series B cybersecurity investors (65)Series A developer tools investors (67)Seed marketplace investors (68)Series B healthtech investors in the US (69)Growth-stage investors in the San Francisco Bay Area (71)Series A B2B investors in the US (79)Series A consumer investors in the US (80)Cybersecurity investors in California (83)B2B investors in the San Francisco Bay Area (84)Developer tools investors in California (86)Consumer investors in the San Francisco Bay Area (86)Growth-stage investors in California (89)Growth-stage cybersecurity investors (92)Marketplace investors (97)Growth-stage fintech investors in the US (97)Series B SaaS investors in the US (108)B2B investors in California (109)Series A investors in the San Francisco Bay Area (112)Seed developer tools investors in the US (114)Series A cybersecurity investors (118)Growth-stage B2B investors (119)Growth-stage healthtech investors in the US (121)Growth-stage consumer investors (124)Series B AI investors in the US (126)Series B fintech investors (127)Consumer investors in California (130)Seed cybersecurity investors in the US (134)Series A investors in California (136)Seed developer tools investors (140)Fintech investors in the San Francisco Bay Area (140)Series A fintech investors in the US (145)Series A consumer investors (154)Series A B2B investors (157)Series B healthtech investors (160)Growth-stage AI investors in the US (162)Growth-stage SaaS investors in the US (162)Series A healthtech investors in the US (164)Series B investors in the US (165)Developer tools venture capital firms in the US (177)Healthtech investors in the San Francisco Bay Area (182)Seed B2B investors in the US (183)Fintech investors in California (189)Series B SaaS investors (196)Series B AI investors (204)Seed cybersecurity investors (205)Cybersecurity venture capital firms in the US (214)Growth-stage fintech investors (214)Developer tools investors (216)Seed consumer investors in the US (216)Healthtech investors in California (240)Series A SaaS investors in the US (256)B2B venture capital firms in the US (257)Series A AI investors in the US (280)Growth-stage investors in the US (288)Series A fintech investors (294)Growth-stage AI investors (295)Seed B2B investors (302)Cybersecurity investors (316)Growth-stage healthtech investors (316)Seed investors in the San Francisco Bay Area (324)Seed consumer investors (331)Series B investors (339)Growth-stage SaaS investors (344)SaaS investors in the San Francisco Bay Area (347)Consumer venture capital firms in the US (348)Seed fintech investors in the US (349)AI investors in the San Francisco Bay Area (364)Series A investors in the US (372)Series A healthtech investors (401)Seed investors in California (415)SaaS investors in California (433)Seed healthtech investors in the US (437)B2B investors (438)AI investors in California (464)Series A SaaS investors (475)Series A AI investors (500)Consumer investors (512)Fintech venture capital firms in the US (525)Seed fintech investors (584)Seed SaaS investors in the US (666)Growth-stage investors (705)Healthtech venture capital firms in the US (709)Seed AI investors in the US (724)Venture capital firms in the San Francisco Bay Area (768)Seed healthtech investors (800)Fintech investors (846)Series A investors (864)Seed SaaS investors (1,010)Venture capital firms in California (1,038)Seed investors in the US (1,043)SaaS venture capital firms in the US (1,049)Seed AI investors (1,082)AI venture capital firms in the US (1,112)Healthtech investors (1,207)SaaS investors (1,529)Active venture capital firms in the US (1,574)AI investors (1,576)Seed investors (1,892)Venture capital firms in the US (2,975)