Most Active AI Infrastructure Investors in Boston 2026

10 firms writing AI Infrastructure checks in Boston, led by Braemar Energy Ventures, Forerunner.

AI Infrastructure in Boston accounts for 5 tracked companies with verified cap-table data, 5 of which disclose round sizes totalling $581M. The median disclosed raise is $85M, and the largest is Blitzy at $204M, ahead of Asimov ($200M) and Duckbill ($85M).

The names that recur most often on these ai infrastructure cap tables are Northzone (1 company), PSG (1 company), Battery Ventures (1 company), Jump Capital (1 company), Morgan Creek Digital (1 company), Defiant (1 company). By latest disclosed round, the market skews Series B (2), Growth (1), Series C (1).

Companies tracked: 5
Disclosed funding total: $581M across 5 companies
Median disclosed raise: $85M
Largest raise: Blitzy — $204M
Stage mix: Series B 2 · Growth 1 · Series C 1
Most recent dated round: 2026-05-01

Best funded AI Infrastructure in Boston companies

Blitzy — $204M (latest: Growth)
Asimov — $200M (latest: Series B)
Duckbill — $85M (latest: Series C)
Metalenz — $50M
ChaosSearch — $41M (latest: Series B)

Sector × city funding reports (20)

All research · Investor directory · Company funding database · Fundraising library