Investor Lists

Series B ioT investors

Updated 7 November 2026

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

See all 48 →The top 25
48investors on the listNo change this week
1,092cheques in 12 months+8% against the market
$19Mmedian round they joined+138% against the market median
98%wrote a cheque in 12 months
60%have led a round

The Top 25

Ordered by cheques observed, never by anything anyone paid for

Deploying now (25)

  1. 1Founders FundDeploying nowVC firm · United States1,122$15Mmedian roundOct 2026last seen
  2. 2First Round CapitalDeploying nowVC firm · United States807$18Mmedian roundOct 2026last seen
  3. 3BoxGroupDeploying nowVC firm · United States773$18Mmedian roundNov 2026last seen
  4. 4Mitsubishi UFJ CapitalDeploying nowVC firm · Japan493$4.7Mmedian roundNov 2026last seen
  5. 5SMBC Venture CapitalDeploying nowInvestment bank · Japan443$5.1Mmedian roundOct 2026last seen
  6. 6Mizuho CapitalDeploying nowVC firm · Japan397$6.5Mmedian roundNov 2026last seen
  7. 7Quiet CapitalDeploying nowVC firm · United States283$17Mmedian roundOct 2026last seen
  8. 8European Investment BankDeploying nowGovernment · Luxembourg246$37Mmedian roundNov 2026last seen
  9. 9CDP Venture CapitalDeploying nowVC firm · Italy227$3.9Mmedian roundOct 2026last seen
  10. 10Cherry VenturesDeploying nowVC firm · Germany179$13Mmedian roundOct 2026last seen
  11. 11SantanderDeploying nowVC firm · United Kingdom125$66Mmedian roundOct 2026last seen
  12. 12Seraphim SpaceDeploying nowVC firm · United Kingdom125$6.4Mmedian roundOct 2026last seen
  13. 13Operator PartnersDeploying nowVC firm · United States124$18Mmedian roundOct 2026last seen
  14. 14Lockheed MartinDeploying nowCorporate VC · United States80$27Mmedian roundOct 2026last seen
  15. 15Builders VCDeploying nowVC firm · United States79$11Mmedian roundOct 2026last seen
  16. 16LoftyInc CapitalDeploying nowVC firm · Nigeria73$2.3Mmedian roundMay 2026last seen
  17. 17Axon Partners GroupDeploying nowCorporate VC · Spain72$5Mmedian roundJul 2026last seen
  18. 18Backed VCDeploying nowVC firm · United Kingdom70$8.2Mmedian roundOct 2026last seen
  19. 19Swen Capital PartnersDeploying nowAsset manager · France62$12Mmedian roundJul 2026last seen
  20. 20Aramco VenturesDeploying nowCorporate VC · Saudi Arabia60$27Mmedian roundSept 2026last seen
  21. 21AtlanticDeploying nowPrivate equity · Germany53$35Mmedian roundOct 2026last seen
  22. 22Indico Capital PartnersDeploying nowAccelerator · Portugal51$5.1Mmedian roundNov 2026last seen
  23. 23Capricorn InvestmentDeploying nowFamily office · United States48$110Mmedian roundNov 2026last seen
  24. 24Asymmetric Capital PartnersDeploying nowVC firm · United States44$8.3Mmedian roundSept 2026last seen
  25. 25Engine VenturesDeploying nowVC firm · United States37$21Mmedian roundOct 2026last seen
23 more on this list

All 48 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 at Series B and scaling

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Quick answers about series B ioT investors

Who are the most active series B ioT investors?

By cheques observed, the most active are Founders Fund, First Round Capital, BoxGroup, Mitsubishi UFJ Capital and SMBC Venture Capital.

How many series B ioT investors are there?

48 are on record. 98% made an investment in the last 12 months and 60% have led a round.

Which stages do series B ioT investors back?

Of the rounds with a named stage in the last 12 months, mostly Series A (24%) and Seed (23%).

How big are the rounds series B ioT investors join?

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

Which sectors do series B ioT investors back most?

In the last 12 months, mostly AI, Aerospace & Space and Energy.

Which series B ioT investors lead the most rounds?

Founders Fund (42 led), First Round Capital (15 led) and Cherry Ventures (6 led).

Where are series B ioT investors based?

Among the most active, most are based in the United States (10), Japan (3) and the United Kingdom (3).

What have series B ioT investors invested in recently?

Recent rounds include Harbinger (Series D+, Nov 2026, with Capricorn Investment), Bizay (Series D+, Nov 2026, with Indico Capital Partners) and Pay2o (Seed, Nov 2026, with Mizuho Capital).

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