Investor Lists

Series B B2B investors

Updated 7 November 2026

Firms we have watched take part in a Series B 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 67 →The top 25
67investors on the list+1 this week
3,818cheques in 12 months-9% against the market
$15Mmedian round they joined+88% against the market median
91%wrote a cheque in 12 months
78%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. 2500 GlobalDeploying nowAngel · United States2,140$3.6Mmedian roundOct 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. 5General CatalystDeploying nowVC firm · United States1,387$27Mmedian roundNov 2026last seen
  6. 6Lightspeed Venture PartnersDeploying nowVC firm · United States1,341$35Mmedian roundNov 2026last seen
  7. 7Index VenturesDeploying nowVC firm · United Kingdom1,027$31Mmedian roundNov 2026last seen
  8. 8Google VenturesDeploying nowCorporate VC · United States884$38Mmedian roundOct 2026last seen
  9. 9FJ LabsDeploying nowVC firm · United States849$11Mmedian roundOct 2026last seen
  10. 10Right Side Capital ManagementDeploying nowVC firm · United States834$875Kmedian roundSept 2026last seen
  11. 11BoxGroupDeploying nowVC firm · United States773$18Mmedian roundNov 2026last seen
  12. 12Liquid 2 VenturesDeploying nowVC firm · United States636$7Mmedian roundOct 2026last seen
  13. 13Pioneer FundDeploying nowPrivate equity · United States551$2.9Mmedian roundNov 2026last seen
  14. 14Bain Capital VenturesDeploying nowVC firm · United States524$27Mmedian roundNov 2026last seen
  15. 15SeedcampDeploying nowVC firm · United Kingdom519$5Mmedian roundNov 2026last seen
  16. 16Spark CapitalDeploying nowVC firm · United States471$40Mmedian roundOct 2026last seen
  17. 17SpeedinvestDeploying nowVC firm · Austria345$6.7Mmedian roundNov 2026last seen
  18. 18Endeavor CatalystDeploying nowCorporate VC · United States318$30Mmedian roundOct 2026last seen
  19. 19HeadlineDeploying nowVC firm · United States307$15Mmedian roundOct 2026last seen
  20. 20Nexus Venture PartnersDeploying nowVC firm · United States294$13Mmedian roundOct 2026last seen
  21. 21Angel InvestDeploying nowVC firm · Germany282$1.5Mmedian roundNov 2026last seen
  22. 22NorthzoneDeploying nowVC firm · United Kingdom240$22Mmedian roundOct 2026last seen
  23. 23Thrive CapitalDeploying nowFamily office240$50Mmedian roundOct 2026last seen
  24. 24Startup Wise GuysDeploying nowAccelerator · Estonia237$551Kmedian roundSept 2026last seen
  25. 25ReachDeploying nowVC firm · Canada217$5Mmedian roundSept 2026last seen
42 more on this list

All 67 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 B B2B investors

Who are the most active series B B2B investors?

By cheques observed, the most active are Y Combinator, 500 Global, Andreessen Horowitz, Alumni Ventures and General Catalyst.

How many series B B2B investors are there?

67 are on record. 91% made an investment in the last 12 months and 78% have led a round.

Which stages do series B B2B investors back?

Of the rounds with a named stage in the last 12 months, mostly Seed (25%) and Series A (24%).

How big are the rounds series B B2B investors join?

The typical (median) round among the leading investors here is $13M.

Which sectors do series B B2B investors back most?

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

Which series B B2B investors lead the most rounds?

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

Where are series B B2B investors based?

Among the most active, most are based in the United States (17), the United Kingdom (3) and Austria (1).

What have series B B2B investors invested in recently?

Recent rounds include Saidot (Nov 2026, with Crowberry Capital), firmly (Series A, Nov 2026, with Alumni Ventures) and Nyquis (Seed, Nov 2026, with Pioneer Fund).

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