Signal by NFX

6.7easy start · #14 of 31
in Investor Databases

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you worknot on record

Runs on Web.

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Signal by NFX is ranked #14 of 31 in investor databases on The Geeks Club. It runs on Web. There is a free plan.

Signal by NFX plans and pricing

All plans

Free Free 100% free tool; no charge signal.nfx.com · 8 Oct 2026

Compared on investor databases

Free plan: Yes
Investor types: mixed
Investment activity data: Yes
Portfolio company data: Yes
Contact details: No
Data freshness: live

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The record

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.
Fundraising tools: For founders, Signal identifies potential-fit investors, uncovers existing investor contacts, and tracks fundraising follow-ups.
Investor profiles: Investor profiles can highlight past investments, investing philosophy, sectors of expertise, and target investment criteria.
Co-investor lists: Investors can privately share and collaborate on deals using a Preferred Co-Investor List.
Gmail connection: Users can connect Gmail through OAuth to find existing investor relationships, and founders can add several Gmail accounts in Account Settings.
Email access: Signal says it uses Gmail header metadata such as sender, receiver, and date, and does not access email content.
Investor data: Investor Search data is crowdsourced by founders, accelerators, and VC associates and is continuously updated by community feedback.
Who can browse: Signal is for founders seeking investors to browse investor profiles; investors cannot browse founders and startups there to invest in them.
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.
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.
Security: Signal says its security architecture and procedures align with SOC 2 standards and that it is a Google API verified application.
Support: Signal directs users with questions to [email protected].
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.
Headquarters: Palo Alto, California, USA
Price from: Free

Where it ranks on The Geeks Club

Best Investor Databases in 2026#14 of 31

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Sources

signal.nfx.com/faq· checked 8 Oct 2026
signal.nfx.com/about_nfx_labs· checked 8 Oct 2026
signal.nfx.com· checked 28 Sept 2026