Investor Lists

Series B cybersecurity investors

Updated 7 November 2026

Firms we have watched take part in a Series B 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 254 →The top 25
254investors on the list+1 this week
8,042cheques in 12 months-4% against the market
$22Mmedian round they joined+181% against the market median
94%wrote a cheque in 12 months
71%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. 2Sequoia CapitalDeploying nowVC firm · United States2,099$35Mmedian roundNov 2026last seen
  3. 3Andreessen HorowitzDeploying nowVC firm · United States1,661$27Mmedian roundNov 2026last seen
  4. 4Alumni VenturesDeploying nowVC firm · United States1,598$12Mmedian roundNov 2026last seen
  5. 5Plug and PlayDeploying nowAccelerator · United States1,561$5Mmedian roundNov 2026last seen
  6. 6General CatalystDeploying nowVC firm · United States1,387$27Mmedian roundNov 2026last seen
  7. 7SV AngelDeploying nowVC firm · United States1,349$18Mmedian roundOct 2026last seen
  8. 8AccelDeploying nowVC firm · United States1,341$32Mmedian roundNov 2026last seen
  9. 9Lightspeed Venture PartnersDeploying nowVC firm · United States1,341$35Mmedian roundNov 2026last seen
  10. 10BpifranceDeploying nowGovernment · France1,151$4.5Mmedian roundOct 2026last seen
  11. 11Khosla VenturesDeploying nowVC firm · United States1,128$26Mmedian roundNov 2026last seen
  12. 12Intel CapitalDeploying nowCorporate VC · United States1,123$22Mmedian roundOct 2026last seen
  13. 13Founders FundDeploying nowVC firm · United States1,122$15Mmedian roundOct 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. 18Kima VenturesDeploying nowVC firm · France859$4.2Mmedian roundNov 2026last seen
  19. 19Google for StartupsDeploying nowAccelerator · United States811$1.4Mmedian roundSept 2026last seen
  20. 20BoxGroupDeploying nowVC firm · United States773$18Mmedian roundNov 2026last seen
  21. 21Tiger Global ManagementDeploying nowVC firm · United States773$47Mmedian roundNov 2026last seen
  22. 22Insight PartnersDeploying nowVC firm · United States765$40Mmedian roundOct 2026last seen
  23. 23RedpointDeploying nowVC firm · United States742$32Mmedian roundNov 2026last seen
  24. 24Menlo VenturesDeploying nowVC firm · United States740$37Mmedian roundOct 2026last seen
  25. 25Battery VenturesDeploying nowVC firm · United States658$32Mmedian roundNov 2026last seen
229 more on this list

All 254 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 →

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Quick answers about series B cybersecurity investors

Who are the most active series B cybersecurity investors?

By cheques observed, the most active are Y Combinator, Sequoia Capital, Andreessen Horowitz, Alumni Ventures and Plug and Play.

How many series B cybersecurity investors are there?

254 are on record. 94% made an investment in the last 12 months and 71% have led a round.

Which stages do series B cybersecurity investors back?

Of the rounds with a named stage in the last 12 months, mostly Seed (26%) and Series A (25%).

How big are the rounds series B cybersecurity investors join?

The typical (median) round among the leading investors here is $27M.

Which sectors do series B cybersecurity investors back most?

In the last 12 months, mostly AI, Fintech and Big Data & Analytics.

Which series B cybersecurity investors lead the most rounds?

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

Where are series B cybersecurity investors based?

Most of the leading investors here are based in the United States (22 of the top 25); the rest in France and the United Kingdom.

What have series B cybersecurity investors invested in recently?

Recent rounds include Vensum Power (Series A, Nov 2026, with Lifeline Ventures), Physicl (Seed, Nov 2026, with Inovia Capital) 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