Top 10 Angel Investors in Boston (2025)

Last Updated: August 29, 2025

Total Investments

15,241

Successful Exits

2,806

Active Investors

1,384

Top Investors in Boston

Introduction to Boston's Investment Ecosystem

Boston has emerged as a vibrant ecosystem for startups and angel investors. In this comprehensive guide, we'll explore the most active and successful angel investors in the Boston area, based on their investment history, portfolio performance, and industry expertise.

Introduction to Boston's Investment Ecosystem

Boston has emerged as a vibrant ecosystem for startups and angel investors. In this comprehensive guide, we'll explore the most active and successful angel investors in the Boston area, based on their investment history, portfolio performance, and industry expertise.

How We Selected Top Boston Investors

Our rankings are based on several key factors:

  • Number of investments made
  • Successful exits
  • Industry diversity and expertise
  • Team size and experience
  • Market presence and reputation
Profile photo of Battery Ventures

Battery Ventures

Boston, Massachusetts, United States

Investments 694
Exits 159
Team Size 0
Industries Finance, Financial Services, Venture Capital, FinTech

Background & Investment Philosophy

Battery Ventures finances technology sector companies with venture capital, private equity, and debt financing investments.

Profile photo of Polaris Partners

Polaris Partners

Boston, Massachusetts, United States

Investments 540
Exits 115
Team Size 0
Industries Venture Capital, Health Care, Biotechnology, Big Data, Medical Device

Background & Investment Philosophy

Polaris Partners invests in healthcare and technology companies вАЛacross all stages from founding to profitable growth.

Summit Partners

Boston, Massachusetts, United States

Investments 345
Exits 204
Team Size 78
Industries Energy, E-Commerce, Health Care, FinTech, SaaS, Life Science, Media and Entertainment, Information Technology, Hardware

Background & Investment Philosophy

Global alternative investment firm currently investing more than $9.5B into growth equity, fixed income and public equity opportunities

Profile photo of Sigma Partners

Sigma Partners

Boston, Massachusetts, United States

Investments 334
Exits 73
Team Size 4
Industries Venture Capital

Background & Investment Philosophy

Sigma Partners is a venture capital firm, founded in 1984, that has invested in over a hundred early stage companies and has over $2

Profile photo of Flybridge

Flybridge

Boston, Massachusetts, United States

Investments 331
Exits 58
Team Size 0
Industries Finance, Financial Services, Venture Capital, Cryptocurrency, Blockchain, Business Development, Impact Investing

Background & Investment Philosophy

Flybridge is a seed-stage VC working with entrepreneurs to leverage the power of community.

Profile photo of SV Health Investors

SV Health Investors

Boston, Massachusetts, United States

Investments 217
Exits 39
Team Size 0
Industries Health Care, Biotechnology, Medical Device

Background & Investment Philosophy

SV Health Investors is a Boston-based venture capital firm focused on investments in biotechnology and healthcare industry.

Profile photo of Techstars Boston Accelerator

Techstars Boston Accelerator

Boston, Massachusetts, United States

Investments 193
Exits 33
Team Size 0
Industries Management Consulting, Business Development, Consulting, Event Management

Background & Investment Philosophy

Techstars Boston Accelerator is a top innovation hub that attracts top talent from all over the world.

Profile photo of Globespan Capital Partners

Globespan Capital Partners

Boston, Massachusetts, United States

Investments 176
Exits 50
Team Size 0
Industries SaaS, Mobile

Background & Investment Philosophy

Globespan Capital Partners is a California-based venture capital firm that finances startups in the IT industry.

NextView Ventures

Boston, Massachusetts, United States

Investments 146
Exits 22
Team Size 1
Industries Finance, Consumer, Venture Capital, Internet, Business Development

Background & Investment Philosophy

NextView Ventures invests in companies that use technology to drive a brighter collective future.

Profile photo of RA Capital Management

RA Capital Management

Boston, Massachusetts, United States

Investments 145
Exits 81
Team Size 0
Industries Financial Services, Medical, Life Science

Background & Investment Philosophy

RA Capital Management is an investment advisor specializing in the life-sciences and drug development sectors.

Key Findings

  • Average investments per investor: 11.0
  • Most active sectors: BioTech, Health IT, Health & Hospital Services, FinTech, Venture Capital
  • Success rate (exits/investments): 18.4%

The Future of Boston's Investment Scene

The Boston angel investment landscape continues to evolve and grow. These top investors have demonstrated consistent success in identifying and supporting promising startups. Whether you're a founder looking for investment or an aspiring angel investor, these individuals represent some of the most knowledgeable and active participants in the Boston startup ecosystem.

Connect with Boston's Leading Investors

Looking to connect with these investors? Create your founder profile on AngelSearch to get introduced to the right investors for your startup.

Create Founder Profile to connect with Boston investors