SignalFire
SignalFire is a venture capital firm based in San Francisco, United States, focused on Pre-Seed to Series B startups in Artificial Intelligence, SaaS & Enterprise, and Healthcare & Biotech. This profile covers its focus and how founders can get in front of it in 2026.
SignalFire is a venture capital firm that invests in seed stage companies and breakout companies.
- Investment focus
- Artificial IntelligenceSaaS & EnterpriseHealthcare & BiotechCybersecurityDeveloper Tools & DataConsumer & Retail
- Investment stages
- Pre-SeedSeedSeries ASeries B
- Location
- San Francisco, United States
- Team size
- 11-50
- Portfolio companies
- 196+
- Latest deal on record
- August 2026
How to pitch SignalFire
The founders who hear back from SignalFire lead with traction and a clear ask that matches its stage, not a generic mass email. Build a targeted, verified list, write a personalized note, and track who opens it, all in one place.
Connect with SignalFire
About this profile
This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.
Cite this page
Round Funded. "SignalFire." Round Funded investor database, updated October 19, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/vc/signalfire
Frequently Asked Questions
What does SignalFire invest in?
SignalFire focuses on Artificial Intelligence, SaaS & Enterprise, Healthcare & Biotech, and Cybersecurity. Match your sector and stage before reaching out, then find similar active investors on Round Funded.
What stage does SignalFire invest at?
SignalFire focuses on Pre-Seed to Series B rounds. Lead with traction that fits the stage when you reach out.
Is SignalFire actively investing?
Yes. Round Funded's research found that SignalFire has made a new investment or run a new cohort since 2024, and its latest deal on record is from August 2026. Reach out with a personalized pitch that fits its stage and focus, then track who opens it.
Where is SignalFire based?
SignalFire is based in San Francisco, United States. You can reach out from anywhere with a pitch that matches its focus.
How do I contact SignalFire?
Unlock a verified email for SignalFire and reach out with a personalized pitch on Round Funded. We show only deliverable contacts, so your outreach does not bounce.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.