Investor Lists

Investors based in Boston

Updated 7 November 2026

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

See all 949 →The top 25
949investors on the listNo change this week
735cheques in 12 months+5% against the market
$16Mmedian round they joined+94% against the market median
10%wrote a cheque in 12 months
8%have led a round

The Top 25

Ordered by cheques observed, never by anything anyone paid for

Deploying now (19)

  1. 1MassChallengeDeploying nowAccelerator · United States984$1.8Mmedian roundSept 2026last seen
  2. 2Battery VenturesDeploying nowVC firm · United States658$32Mmedian roundNov 2026last seen
  3. 3Polaris PartnersDeploying nowVC firm · United States490$36Mmedian roundOct 2026last seen
  4. 4RA Capital ManagementDeploying nowPrivate equity · United States395$93Mmedian roundNov 2026last seen
  5. 5Summit PartnersDeploying nowPrivate equity · United States356$81Mmedian roundOct 2026last seen
  6. 6Wellington ManagementDeploying nowVC firm · United States297$130Mmedian roundOct 2026last seen
  7. 7Cormorant Asset ManagementDeploying nowPrivate equity · United States176$102Mmedian roundOct 2026last seen
  8. 8Globespan Capital PartnersquietVC firm · United States156$43Mmedian roundJul 2025last seen
  9. 9MPM CapitalDeploying nowPrivate equity · United States139$60Mmedian roundDec 2025last seen
  10. 10406 VenturesDeploying nowVC firm · United States136$15Mmedian roundOct 2026last seen
  11. 11Omega FundsDeploying nowVC firm · United States104$88Mmedian roundSept 2026last seen
  12. 12Flare CapitalDeploying nowVC firm · United States93$12Mmedian roundOct 2026last seen
  13. 13HarbourVest PartnersDeploying nowFund of funds · United States93$54Mmedian roundJun 2026last seen
  14. 14RockPort CapitalquietVC firm · United States90$24Mmedian roundJul 2019last seen
  15. 15MassMutual VenturesDeploying nowVC firm · United States84$14Mmedian roundOct 2026last seen
  16. 16Third Rock VenturesquietVC firm · United States84$56Mmedian roundJul 2019last seen
  17. 17Pillar VCDeploying nowVC firm · United States83$8.2Mmedian roundSept 2026last seen
  18. 18Castle Island VenturesDeploying nowVC firm · United States78$7Mmedian roundOct 2026last seen
  19. 19Fidelity VenturesquietVC firm · United States75$310Mmedian roundFeb 2019last seen
  20. 20The E14 FundDeploying nowVC firm · United States72$8Mmedian roundOct 2026last seen
  21. 21Commonwealth Capital VenturesquietVC firm · United States71$10Mmedian roundSept 2015last seen
  22. 22One Way VenturesDeploying nowVC firm · United States71$8Mmedian roundNov 2026last seen
  23. 23PSGDeploying nowVC firm · United States68$50Mmedian roundAug 2026last seen
  24. 24Ascent Venture PartnersquietVC firm · United States65$8Mmedian roundJul 2019last seen
  25. 25Underscore VCDeploying nowVC firm · United States65$7Mmedian roundSept 2026last seen
924 more on this list

All 949 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 Boston

Who are the most active investors based in Boston?

By cheques observed, the most active are MassChallenge, Battery Ventures, Polaris Partners, RA Capital Management and Summit Partners.

How many investors based in Boston are there?

949 are on record. 10% made an investment in the last 12 months and 8% have led a round.

Which stages do investors based in Boston back?

Of the rounds with a named stage in the last 12 months, mostly Series A (23%) and Series B (19%).

How big are the rounds investors based in Boston join?

The typical (median) round among the leading investors here is $32M.

Which sectors do investors based in Boston back most?

In the last 12 months, mostly AI, Biotech and Healthcare.

Which investors based in Boston lead the most rounds?

Battery Ventures (29 led), RA Capital Management (15 led) and Wellington Management (15 led).

What have investors based in Boston invested in recently?

Recent rounds include Alethio Therapeutics (Series A, Nov 2026, with RA Capital Management), Shackleton AI (Seed, Nov 2026, with Battery Ventures) and Lazarus AI (Nov 2026, with One Way Ventures).

How is this list of investors based in Boston ranked?

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

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