SignalFire
UnclaimedAt a Glance
- Check Size
- $1M – $50M
- Stage
- Seed, Series A, Series B+
- AUM
- $2B
- Sectors
- AI, Enterprise, Consumer +2
- Founded
- 2014
- HQ
- San Francisco, CA
About SignalFire
SignalFire was founded in 2013 by Chris Farmer and Ilya Kirnos with a vision to transform venture capital through data science and technology. The firm developed Beacon, a proprietary platform that analyzes billions of data points from sources like GitHub, job postings, patent filings, and web traffic to identify promising founders and companies before they appear on traditional investor radars. This quantitative approach is complemented by their Talent Network, which includes thousands of executives who provide deal flow and support to portfolio companies.
The firm's investment approach spans seed through growth stages, with a focus on AI, enterprise software, developer tools, and consumer technology. SignalFire has backed notable companies including Instacart, Gong, CrowdStrike, and Notion. Their platform extends beyond deal sourcing to provide ongoing value through recruiting, business development, and strategic guidance.
Under the leadership of partners including Chris Farmer, Ilya Kirnos, and Josh Brenner, SignalFire has established itself as a pioneer in applying artificial intelligence and data science to venture capital. What distinguishes them is their systematic approach to pattern recognition in startup success factors and their ability to provide operational support through their extensive talent network.
Investment Thesis
“Uses proprietary data analytics across billions of signals to identify, recruit, and support the most exceptional founders and companies.”
Sector Focus
Investment Stage
Notable Portfolio Companies
View full portfolio →
Fund History
- SignalFire has run a paired core and Breakout structure since 2014 and now operates several strategies at once.
- SignalFire Fund, L.P. was organized in 2014, took its first sale that September and reported $49.5 million sold by September 2015.
- Fund II and the first Breakout Fund launched together in 2016, reporting $101.6 million in combined sales that December.
- The 2018 vintage was materially larger: Fund III closed at $199.4 million and Breakout Fund II at $299.1 million, both reported in December 2019.
- The 2021 vintage brought Fund IV at $192.2 million and Breakout Fund III at $357.0 million.
- A 2024 reset renamed the strategies again.
- SignalFire Early Fund IV, L.P. and SignalFire Seed Fund V, L.P. were filed in March 2024, and the SignalFire Eureka Fund, L.P. was filed in April 2024 and had reported $150 million sold by May 2026.
- Alongside the flagships sit twenty series of a SignalFire Opportunities Fund, an XIR Opportunities programme now in its second generation, and the Liberty, Sage and VSS vehicles.
SEC Fund Filings
- Vehicles filed, last 24 months
- 4
- Latest filing
SignalFire filed a Form D for 4 fund vehicles between Sep 30, 2024 and Sep 29, 2026.
| Fund vehicle | Source |
|---|---|
| SignalFire Opportunities Fund, L.P. - Series 20 | SEC Form D, filed |
| SIGNALFIRE OPPORTUNITIES FUND, L.P. - SERIES 19 | SEC Form D, filed |
| SignalFire XIR Opportunities II, L.P. - Series CVR | SEC Form D, filed |
| SIGNALFIRE XIR OPPORTUNITIES II, L.P. - SERIES SPR | SEC Form D, filed |
A Form D is the notice a fund files with the SEC when it raises money in a private offering. Feeder funds, parallel funds and SPVs each file their own, so the count measures filing activity, not the number of flagship funds.
Source: SEC EDGAR Form D filings for pooled investment funds, original filings only (amendments excluded). Our filing data starts Jul 1, 2024. Vehicles are matched to SignalFire by fund name and checked against the sponsor address and named principals on each filing; offering amounts are not shown. Each “SEC Form D” link opens an EDGAR full-text search for that vehicle’s exact name, where the filing itself is listed. See every new fund filing on the Form D Radar.
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Frequently Asked Questions
What stage does SignalFire invest at?
SignalFire primarily invests at the Seed, Series A, Series B+ stages. This means they focus on companies that are building their initial product and finding product-market fit.
Where is SignalFire located?
SignalFire is headquartered in San Francisco, CA. Many of their portfolio companies are also based in this region, though they invest across geographies.
What sectors does SignalFire focus on?
SignalFire focuses on investments in AI, Enterprise, Consumer, DevTools, Cybersecurity. Their portfolio reflects deep expertise and networks within these sectors.
What is SignalFire's typical check size?
SignalFire's typical investment check size ranges from $1M to $50M. Actual amounts may vary based on the stage, sector, and specific opportunity.
How much does SignalFire have under management?
SignalFire manages approximately $2B in assets under management (AUM) across their funds.
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