Investment Firms in Boston, Massachusetts, United States
There are 11 venture capital and private equity firms based in Boston, Massachusetts, United States. The most active by portfolio size are Fidelity Investments, Wellington Management, and Fidelity Management & Research Company.
Last updated: 27 February 2026
Fidelity Investments
Boston, Massachusetts, United States
82 investments
Growth, Series D
AI, Fintech, Defense & Space …
Wellington Management
Boston, Massachusetts, United States
81 investments
Series C, Series D
Biotech & Life Sciences, Fintech, Consumer …
Fidelity Management & Research Company
Boston, Massachusetts, United States
8 investments
Series B, Series C
Biotech & Life Sciences, Food & Agriculture, Data & Analytics …
Summit Partners
Boston, Massachusetts, United States
4 investments
Series B, Growth
Marketing & Advertising, Developer Tools, SaaS
Advent International
Boston, Massachusetts, United States
3 investments
Growth, Series D
Marketing & Advertising, Fintech, Insurance
Eni Next
Boston, Massachusetts, United States
3 investments
Series A, Growth
Hardware & Semiconductors, Climate & Energy
.406 Ventures
Boston, Massachusetts, United States
3 investments
Series A, Series D
AI, Marketing & Advertising, Biotech & Life Sciences
RA Capital Management
Boston, Massachusetts, United States
3 investments
Series A, Series D
Healthcare, Climate & Energy
Indicator Ventures
Boston, Massachusetts, United States
1 investments
Legal
TA Associates
Boston, Massachusetts, United States
1 investments
Fintech
Great Hill Partners
Boston, Massachusetts, United States
1 investments
Fintech