Investor Lists

Investors based in Waltham

Updated 7 November 2026

Firms with an address in Waltham. A head office is a fact about the firm; where it invests is on its own page.

See all 39 →The top 25
39investors on the listNo change this week
20cheques in 12 months-38% against the market
$10Mmedian round they joined+25% against the market median
10%wrote a cheque in 12 months
0%have led a round

The Top 25

Ordered by cheques observed, never by anything anyone paid for

Deploying now (4)

  1. 1MassVenturesDeploying nowVC firm · United States129$735Kmedian roundOct 2026last seen
  2. 2Longworth Venture PartnersquietVC firm · United States78$4Mmedian roundJul 2016last seen
  3. 3HLM Investment PartnersquietVC firm · United States69$12Mmedian roundAug 2017last seen
  4. 4ABS VenturesquietVC firm · United States40$12Mmedian roundNov 2012last seen
  5. 5Massachusetts Life Sciences CenterquietGovernment · United States10$500Kmedian roundJan 2014last seen
  6. 6Key Venture PartnersdormantVC firm · United States7$7.5Mmedian roundApr 2015last seen
  7. 7Agent CapitalDeploying nowVC firm · United States6$43Mmedian roundOct 2026last seen
  8. 8Norwich VenturesquietVC firm · United States6$5.4Mmedian roundMar 2015last seen
  9. 9MedEquity CapitalquietPrivate equity · United States2$13Mmedian roundJul 2003last seen
  10. 10WONDERSTONE VenturesDeploying nowVC firm · United States2$63Mmedian roundFeb 2026last seen
  11. 11NameMedia, Inc.quietVC firm · United States1$1Mmedian roundJun 2009last seen
  12. 12SkycorequietGrowth equity · United States1$10Mmedian roundJun 2011last seen
  13. 13VeraltoDeploying nowGrowth equity · United States1$55Mmedian roundAug 2026last seen
  14. 14BVI MedicalunknownInvestment firm · United Statesnone observed-median round-last seen
  15. 15Bentley Entrepreneurship SocietyunknownInvestment firm · United Statesnone observed-median round-last seen
  16. 16Bentley Venture Capital FundunknownVC firm · United Statesnone observed-median round-last seen
  17. 17Boston Angel Club InvestmentunknownVC firm · United Statesnone observed-median round-last seen
  18. 18Boston Innovation Growth, Inc.unknownInvestment firm · United Statesnone observed-median round-last seen
  19. 19Brandeis Private Equity & Venture Capital ClubunknownPrivate equity · United Statesnone observed-median round-last seen
  20. 20Buyers Edge PlatformunknownUnited Statesnone observed-median round-last seen
  21. 21C.P. Baker & Compa...unknownPrivate equity · United Statesnone observed-median round-last seen
  22. 22Claridge VenturesunknownFamily office · United Statesnone observed-median round-last seen
  23. 23Commonwealth Financial NetworkunknownInvestment firm · United Statesnone observed-median round-last seen
  24. 24CyberXunknownInvestment firm · United Statesnone observed-median round-last seen
  25. 25KO Capital Group LLCunknownInvestment firm · United Statesnone observed-median round-last seen
14 more on this list

All 39 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 →

Quick answers about investors based in Waltham

Who are the most active investors based in Waltham?

By cheques observed, the most active are MassVentures, Longworth Venture Partners, HLM Investment Partners, ABS Ventures and Massachusetts Life Sciences Center.

How many investors based in Waltham are there?

39 are on record. 10% made an investment in the last 12 months.

Which stages do investors based in Waltham back?

Of the rounds with a named stage in the last 12 months, mostly Series A (38%) and Seed (31%).

How big are the rounds investors based in Waltham join?

The typical (median) round among the leading investors here is $10M.

Which sectors do investors based in Waltham back most?

In the last 12 months, mostly Manufacturing, Energy and Healthcare.

What have investors based in Waltham invested in recently?

Recent rounds include Emvolon (Series A, Oct 2026, with MassVentures), Star Therapeutics (Other, Oct 2026, with Agent Capital) and RISE Robotics (Grant, Sept 2026, with MassVentures).

How is this list of investors based in Waltham ranked?

By cheques observed, from the rounds and filings we watched, and never by anything anyone paid for. It is rebuilt every night.

Can I see all 39 investors based in Waltham?

The top 25 are here. All 39 are in the app, with filters for stage, sector, market and cheque size. A free account shows 10 per search, Pro up to 1,000.

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