Signal by NFX
Signal by NFX is a free, web-based investing network that helps founders identify investors by sector, stage, and investor quality.
What Signal by NFX is
Signal by NFX is a free, web-based investing network that helps founders identify investors by sector, stage, and investor quality. Founders can find potential-fit investors, surface existing investor connections, and track fundraising follow-ups. Profiles may show investors’ past investments, investing philosophy, areas of expertise, and target criteria. Search data is crowdsourced from founders, accelerators, and VC associates and updated through community feedback. Founders can connect Gmail through OAuth to find existing relationships; Signal says it reads header details such as sender, receiver, and date, not email content. They can contact investors through an email provider and contact list such as Gmail when already in the investor’s trusted network. Investors can privately share deals using a Preferred Co-Investor List. Investors, VCs, scouts, and angels request an invite with an Investing Profile; Signal says listed investors are vetted. Investors cannot browse startups on Signal to find investments. The service is made by NFX Guild Labs, the software arm of NFX Guild, and is headquartered in Palo Alto, California.
Good
- Investor profiles include investments and target criteria.
- Founders can identify existing investor relationships.
- Fundraising follow-ups can be tracked.
- Investors can privately share deals.
- Free plan; web access.
Watch out
- Investors cannot browse founders or startups.
- Investor access requires requesting an invite.
- Contacting investors depends on a trusted network.
Who it suits
Signal suits founders seeking investors and a way to track fundraising follow-ups. Investors seeking to browse founders and startups will not find that workflow here.
Verdict
Signal brings investor research, relationship discovery, and fundraising follow-up into a free web service for founders. Its investor-side collaboration is private, while investor browsing of startups is not available.
Plans and prices
From Signal by NFX's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | 100% free tool; no charge |
The facts
Each one read from Signal by NFX's own pages, with the date it was checked.
What it does
- Access limits
- Investors, VCs, scouts, and angels request an invite by creating an Investing Profile, and Signal says listed investors are vetted by founders and other investors.checked 8 Oct 2026
- Co-investor lists
- Investors can privately share and collaborate on deals using a Preferred Co-Investor List.checked 8 Oct 2026
- Contacting investors
- Founders can contact an investor directly through an email provider and contact list such as Gmail when they are already in that investor’s trusted network.checked 8 Oct 2026
- Email access
- Signal says it uses Gmail header metadata such as sender, receiver, and date, and does not access email content.checked 8 Oct 2026
- Fundraising tools
- For founders, Signal identifies potential-fit investors, uncovers existing investor contacts, and tracks fundraising follow-ups.checked 8 Oct 2026
- Gmail connection
- Users can connect Gmail through OAuth to find existing investor relationships, and founders can add several Gmail accounts in Account Settings.checked 8 Oct 2026
- Investor data
- Investor Search data is crowdsourced by founders, accelerators, and VC associates and is continuously updated by community feedback.checked 8 Oct 2026
- Investor profiles
- Investor profiles can highlight past investments, investing philosophy, sectors of expertise, and target investment criteria.checked 8 Oct 2026
- Purpose
- Signal is a community-driven investing network for founders, VCs, scouts, and angels that helps founders find investors by sector, stage, and investor quality.checked 8 Oct 2026
- Security
- Signal says its security architecture and procedures align with SOC 2 standards and that it is a Google API verified application.checked 8 Oct 2026
- Support
- Signal directs users with questions to [email protected].checked 8 Oct 2026
- Who can browse
- Signal is for founders seeking investors to browse investor profiles; investors cannot browse founders and startups there to invest in them.checked 8 Oct 2026
The company
- Headquarters
- Palo Alto, California, USAchecked 28 Sep 2026
- Maker
- NFX Guild Labs is described as the software arm of NFX Guild, an early-stage venture firm in the San Francisco Bay Area, building free-to-use online tools for the startup ecosystem.checked 8 Oct 2026
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