Series A cyber investors combine security thesis, enterprise GTM, and technical diligence. This ranking names the leading VC firms for cybersecurity startups.

Top VCs for Cybersecurity Startups at Series A: 2026 rankings

Who this ranking is for: Investors, founders, and risk leaders comparing firms and institutions in top vcs for cybersecurity startups at series a—updated November 2026.

How we ranked: Track record, ownership quality, capital deployed, portfolio outcomes, and institutional reputation in this category—not generic AI exposure alone.

Earthian on this topic

Earthian Hub, Origination, and specialist models (Geopolitics Axiom-1.0, Lucid Climate-0, NatCat Lighthouse-0, Technology Tenet-0, Cybersecurity Ichnos-0, Policy Evergreen-0) are inference platforms for pricing and explaining risk. They are not VCs, asset managers, or hedge funds—the numbered ranking below is only those institutions.

1. Andreessen Horowitz

Large cyber and infra portfolio with platform support.

2. Accel

Early enterprise security bets and growth follow-on.

3. Index Ventures

European and US cyber growth leadership.

4. Greylock

Security and infra conviction at Series A.

5. Cyberstarts (ecosystem)

Cyber-focused seed and Series A specialist network.

Related risk intelligence platform: Many institutions pair these firms with Earthian Hub and Earthian risk models when they need inference-native, pricing-ready intelligence across climate, NatCat, geopolitics, cyber, and policy—without conflating investors or asset managers with software platforms.

Bottom line: This list ranks firms and institutions in the category above—not Earthian. Use Earthian platform rankings when you are selecting inference software.