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Signalfire

SEC-registered investment adviser.

HQ
CA

SignalFire is a venture firm that says it has AI at its core and is built like a tech company, offering data, portfolio support, and sector expertise. Its listed portfolio includes Outmarket AI, Vector, Fun.xyz, Patlytics, and AnyTeam. Chris Farmer is Partner and CEO, and Ilya Kirnos is Partner and CTO.

01 · Says / Does

TagSaysDoesHistorically (to 2020)
StagesSeed, Series A, Series BNot enough dated dealsSeed, Series A, Series B
SectorsAI infra, Devtools, Cybersecurity, Enterprise SaaS, Vertical SaaS, Fintech, Consumer, HealthtechNot enough dated dealsEnterprise SaaS, Consumer, AI applications, Hardware, Cybersecurity, Data analytics, Devtools, Fintech
RegionsNot statedNot enough dated dealsCA, NY

Says: what the firm's funds state. Does: from 1 dated deal in the last 24 months.

Historical focus (through 2020), derived from historical deal data.

YearDealsTop sectors
20156Consumer, AI applications, Digital health
20168Consumer, Ecommerce, Cybersecurity
201714Fintech, AI applications, Enterprise SaaS
20189Enterprise SaaS, Media, Consumer
201923AI applications, Consumer, Data analytics
202010Enterprise SaaS, Cybersecurity, AI applications

Stage mix over time

2015 Pre-seed: 12015 Seed: 4152016 Seed: 32016 Series A: 42016 Series B: 1162017 Seed: 42017 Series A: 42017 Series B: 3172018 Seed: 42018 Series A: 32018 Series B: 1182019 Seed: 92019 Series A: 62019 Series B: 62019 Growth: 2192020 Seed: 62020 Series A: 22020 Series B: 120212223242526
  • Pre-seed
  • Seed
  • Series A
  • Series B
  • Growth
Share of rounds by stage, per year. Striped years have fewer than 3 rounds.Historical focus (through 2020), derived from historical deal data.
Rounds by stage and year
YearPre-seedSeedSeries ASeries BGrowth
201514000
201603410
201704430
201804310
201909662
202006210
202100000
202200000
202300000
202400000
202500000
202600000

02 · Fund history

FundYearSizeStatus
SignalFire Eureka Fund, L.P.

SignalFire is a venture firm built around AI, data, and portfolio support for early-stage startups. It invests across AI/ML tools, vertical SaaS, health and pharmatech, dev tools, cybersecurity, enterprise AI, fintech, and consumer companies, with a sector-by-sector strategy and an early investing approach. Inferred from the firm's website

2024$150M (Form D)Open, writing first checks
SIGNALFIRE BREAKOUT FUND III, L.P.2021$357.01M to $390.77M (Form D and SEC adviser filing)Follow-ons only
SIGNALFIRE FUND IV, L.P.2021$192.24M (Form D)Follow-ons only
SIGNALFIRE VSS I, L.P.2021$132.92M to $164.91M (Form D and SEC adviser filing)Follow-ons only

03 · People across funds

04 · Recent deals

  • May 18, 2026Outmarket AISeries AFirmsource

05 · Latest from the firm

06 · Sources

  1. HTTP://WWW.SIGNALFIRE.COM
  2. https://www.signalfire.com/
  3. https://www.signalfire.com/team
  4. https://www.signalfire.com/blog
  5. https://www.signalfire.com/blog/investor-outmarket
  6. https://www.signalfire.com/blog/vector-investor

Fund dates and sizes are from SEC Form D filings.

Last verified: Oct 28, 2026