Investor Lists

Series A cybersecurity investors

Updated 7 November 2026

Firms we have watched take part in a Series A round raised by a cybersecurity company in the last two years. Both the stage and the sector are what they did, not what their website says.

See all 387 →The top 25
387investors on the list-6 this week
9,116cheques in 12 months-9% against the market
$16Mmedian round they joined+98% against the market median
95%wrote a cheque in 12 months
55%have led a round

The Top 25

Ordered by cheques observed, never by anything anyone paid for

Deploying now (25)

  1. 1Y CombinatorDeploying nowAccelerator · United States6,412$3Mmedian roundOct 2026last seen
  2. 2TechstarsDeploying nowVC firm · United States2,989$1.2Mmedian roundNov 2026last seen
  3. 3Sequoia CapitalDeploying nowVC firm · United States2,099$35Mmedian roundNov 2026last seen
  4. 4National Science FoundationDeploying nowGovernment · United States1,869$926Kmedian roundSept 2026last seen
  5. 5Andreessen HorowitzDeploying nowVC firm · United States1,661$27Mmedian roundNov 2026last seen
  6. 6Alumni VenturesDeploying nowVC firm · United States1,598$12Mmedian roundNov 2026last seen
  7. 7Plug and PlayDeploying nowAccelerator · United States1,561$5Mmedian roundNov 2026last seen
  8. 8General CatalystDeploying nowVC firm · United States1,387$27Mmedian roundNov 2026last seen
  9. 9SV AngelDeploying nowVC firm · United States1,349$18Mmedian roundOct 2026last seen
  10. 10AccelDeploying nowVC firm · United States1,341$32Mmedian roundNov 2026last seen
  11. 11Lightspeed Venture PartnersDeploying nowVC firm · United States1,341$35Mmedian roundNov 2026last seen
  12. 12WayraDeploying nowCorporate VC · Germany1,160$2Mmedian roundSept 2026last seen
  13. 13Khosla VenturesDeploying nowVC firm · United States1,128$26Mmedian roundNov 2026last seen
  14. 14Bessemer Venture PartnersDeploying nowVC firm · United States1,038$30Mmedian roundNov 2026last seen
  15. 15Index VenturesDeploying nowVC firm · United Kingdom1,027$31Mmedian roundNov 2026last seen
  16. 16GaingelsDeploying nowPrivate equity · United States1,010$8Mmedian roundOct 2026last seen
  17. 17Google VenturesDeploying nowCorporate VC · United States884$38Mmedian roundOct 2026last seen
  18. 18EIC AcceleratorDeploying nowGovernment · European Union875$4.3Mmedian roundOct 2026last seen
  19. 19Kima VenturesDeploying nowVC firm · France859$4.2Mmedian roundNov 2026last seen
  20. 20FJ LabsDeploying nowVC firm · United States849$11Mmedian roundOct 2026last seen
  21. 21First Round CapitalDeploying nowVC firm · United States807$18Mmedian roundOct 2026last seen
  22. 22BoxGroupDeploying nowVC firm · United States773$18Mmedian roundNov 2026last seen
  23. 23RedpointDeploying nowVC firm · United States742$32Mmedian roundNov 2026last seen
  24. 24Menlo VenturesDeploying nowVC firm · United States740$37Mmedian roundOct 2026last seen
  25. 25AntlerDeploying nowVC firm · United Kingdom729$1Mmedian roundNov 2026last seen
362 more on this list

All 387 are in the app, with filters for stage, sector and market. A free account shows 10 per search, Pro up to 1,000.

See the whole list →

Reading for founders in security

More books for founders and investors on the Reading List.

As an Amazon Associate we earn from qualifying purchases.

Quick answers about series A cybersecurity investors

Who are the most active series A cybersecurity investors?

By cheques observed, the most active are Y Combinator, Techstars, Sequoia Capital, National Science Foundation and Andreessen Horowitz.

How many series A cybersecurity investors are there?

387 are on record. 95% made an investment in the last 12 months and 55% have led a round.

Which stages do series A cybersecurity investors back?

Of the rounds with a named stage in the last 12 months, mostly Seed (28%) and Series A (24%).

How big are the rounds series A cybersecurity investors join?

The typical (median) round among the leading investors here is $18M.

Which sectors do series A cybersecurity investors back most?

In the last 12 months, mostly AI, Fintech and Healthcare.

Which series A cybersecurity investors lead the most rounds?

Andreessen Horowitz (114 led), Accel (103 led) and General Catalyst (97 led).

Where are series A cybersecurity investors based?

Most of the leading investors here are based in the United States (20 of the top 25); the rest in the United Kingdom and Germany.

What have series A cybersecurity investors invested in recently?

Recent rounds include Foozi (Pre-seed, Nov 2026, with Quartzo Capital), Humble Robotics (Series A, Nov 2026, with Energy Impact Partners) and Ocient (Series C, Nov 2026, with In-Q-Tel).

Built from the rounds we watched, refreshed every night. How we count · Report a correction