United States · 
What does SignalFire invest in?
SignalFire invests most often at Series A and Seed (56% of the rounds on record), in sectors such as Paytech, Artificial Intelligence and Generative AI.
SignalFire highlights
- 01
39 cheques in the last 12 months
- 02
Mostly Series A and Seed: 56% of its rounds
- 03
Sole investor in 11 rounds, median $4.0M
What they do
SignalFire is the first venture capital firm built as a technology company.From their own website
- Type
- VC firm (from a list, unverified)
- Cheque size
- $250K – $30M as they say
- Stages
- Pre-seedSeedSeries ASeries B
- Sectors
- PaytechArtificial IntelligenceGenerative AI
- Based in
- San Francisco, United States
- Cold pitches
- Not accepted
The record
Every round we can evidence, newest first188 appearances
- 2026
33 rounds
- Oct
- Oct
- Sept
- Aug
- Aug
- Aug
- Aug
- Jul
- Jul
- Jul
- Jun
- Jun
- May
- May
- May
- May
- May
- May
- Apr
- Apr
- Mar
- Mar
- Mar
- Mar
- Mar
- Mar
- Mar
- Feb
- Feb
- Feb
- Jan
- Jan
- Jan
- 2025
38 rounds
- Dec
- Dec
- Dec
- Nov
- Nov
- Nov
- Oct
An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.
The team
Named by the firm itself, on a filing, its Form ADV or its company registration3 named
CWChristopher W. FarmerManaging Member, Signalfire Management Services LLCiForm ADV
IWIlya W. KirnosManaging Member, Signalfire Management Services LLCiForm ADV
SCSpencer Colin AckermannChief Compliance OfficeriForm ADV
We also hold 58 people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.
What the register says
From the firm's own filings with the SEC, which it must file accurately by law
$4.5Bassets it managesOct 2026
Registeredinvestment adviserfull reporting to the SEC
- Legal name
- Signalfire Management Services, LLC
- SEC number
- CRD 194512
Funds on its Form ADV
40 private funds, $3.3B in gross assets · filed Jul 2024
- SignalFire Breakout Fund, L.P.Venture155 investors$523M
- SignalFire Fund III, L.P.Venture168 investors$482M
- SignalFire Fund II, L.P.Venture155 investors$401M
- SignalFire Breakout Fund III, L.P.Venture268 investors$391M
- SignalFire Breakout Fund II, L.P.Venture168 investors$348M
- SignalFire Fund IV, L.P.Venture268 investors$187M
- SignalFire VSS I, L.P.Venture21 investors$165M
- SignalFire Fund, L.P.Venture57 investors$152M
- SignalFire Liberty Fund, L.P.Venture1 investor$103M
- SignalFire SAGE Fund, L.P.Venture1 investor$100M
And 30 more on the filing.
Who backs their funds
1 LP on record in SignalFire's funds
- Committed
- $438M
- Funds
- 4
- Vintages
- 2023 to 2025
The institutions that put money into its funds, which the firm then invests in companies.Source: the pension's own report, latest Mar 2026.
California Public Employees' Retirement System (CalPERS)4 funds$438M
Fund Vintage Committed SignalFire Eureka Fund 2025 $150M SignalFire Early Fund IV 2025 $94M SignalFire Seed Fund V 2024 $94M SignalFire Sage Fund 2023 $100M
What they claim to have backed
From their own portfolio page (on their website)
60 of 60 we have independently watched raise
AffinitiAnchoreAnomaloAnyteamApostropheArgyleAssembledBicyclehealthBudibaseCentaurlabsClassdojoConveyorCopilotkitCraveDocugamiEllipticEvenuplawFlaglerhealthFlockfreightFormantFormhealthFrameFreshpaintFunGrammarlyGrowtherapyHealthgorillaHealthnoteHorizon3HypermodeIncludedJustpointKolenaLedgerinvestingMandolinMonarchmoneyNanoportNimOnesignalOssovrOutmarketPatlyticsPayzenPlanetscalePraiahealthPraisidioPropelsoftwareProphiaQualifiedhealthaiRedcircleRuliSafegraphSaturncloudSciforiumScopearSessionaiSignozSiroSmithStampliand 54 more
Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded.