Investor Lists

Series A B2B investors

Updated 7 November 2026

Firms we have watched take part in a Series A round raised by a B2B company in the last two years. Both the stage and the sector are what they did, not what their website says.

See all 215 →The top 25
215investors on the list-6 this week
6,194cheques in 12 months-14% against the market
$11Mmedian round they joined+41% against the market median
86%wrote a cheque in 12 months
53%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. 3500 GlobalDeploying nowAngel · United States2,140$3.6Mmedian roundOct 2026last seen
  4. 4Andreessen HorowitzDeploying nowVC firm · United States1,661$27Mmedian roundNov 2026last seen
  5. 5New Enterprise AssociatesDeploying nowVC firm · United States1,610$34Mmedian roundOct 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. 10Lightspeed Venture PartnersDeploying nowVC firm · United States1,341$35Mmedian roundNov 2026last seen
  11. 11Intel CapitalDeploying nowCorporate VC · United States1,123$22Mmedian roundOct 2026last seen
  12. 12Founders FundDeploying nowVC firm · United States1,122$15Mmedian roundOct 2026last seen
  13. 13Index VenturesDeploying nowVC firm · United Kingdom1,027$31Mmedian roundNov 2026last seen
  14. 14GaingelsDeploying nowPrivate equity · United States1,010$8Mmedian roundOct 2026last seen
  15. 15FJ LabsDeploying nowVC firm · United States849$11Mmedian roundOct 2026last seen
  16. 16Insight PartnersDeploying nowVC firm · United States765$40Mmedian roundOct 2026last seen
  17. 17AntlerDeploying nowVC firm · United Kingdom729$1Mmedian roundNov 2026last seen
  18. 18GreylockDeploying nowVC firm · United States719$25Mmedian roundOct 2026last seen
  19. 19Battery VenturesDeploying nowVC firm · United States658$32Mmedian roundNov 2026last seen
  20. 20Bossa InvestDeploying nowVC firm · Brazil657$6.7Mmedian roundOct 2026last seen
  21. 21Salesforce VenturesDeploying nowCorporate VC · United States649$26Mmedian roundNov 2026last seen
  22. 22Liquid 2 VenturesDeploying nowVC firm · United States636$7Mmedian roundOct 2026last seen
  23. 23Pioneer FundDeploying nowPrivate equity · United States551$2.9Mmedian roundNov 2026last seen
  24. 24U.S. Venture PartnersDeploying nowVC firm · United States535$15Mmedian roundNov 2026last seen
  25. 25Goodwater CapitalDeploying nowVC firm · United States526$4.1Mmedian roundSept 2026last seen
190 more on this list

All 215 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 b2b software and saas

More books for founders and investors on the Reading List.

As an Amazon Associate we earn from qualifying purchases.

Quick answers about series A B2B investors

Who are the most active series A B2B investors?

By cheques observed, the most active are Y Combinator, Techstars, 500 Global, Andreessen Horowitz and New Enterprise Associates.

How many series A B2B investors are there?

215 are on record. 86% made an investment in the last 12 months and 53% have led a round.

Which stages do series A B2B investors back?

Of the rounds with a named stage in the last 12 months, mostly Seed (26%) and Series A (24%).

How big are the rounds series A B2B investors join?

The typical (median) round among the leading investors here is $15M.

Which sectors do series A B2B investors back most?

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

Which series A B2B investors lead the most rounds?

Andreessen Horowitz (114 led), General Catalyst (97 led) and Lightspeed Venture Partners (83 led).

Where are series A B2B investors based?

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

What have series A B2B investors invested in recently?

Recent rounds include Physicl (Seed, Nov 2026, with U.S. Venture Partners), Future Secure AI (Other, Nov 2026, with Square Peg) and Humble Robotics (Series A, Nov 2026, with Obvious Ventures).

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