Massachusetts Business Entity Search

Search Massachusetts LLCs, corporations, and partnerships via API. Structured JSON from IRS Exempt Organizations Business Master File. 225,196 entities available.

225,196

Total Entities

81,839

Corporations

44,622

Sole Proprietorships

44,000

Nonprofits

Search Massachusetts entities

Entity types in Massachusetts

81,839 Sole Proprietorship

44,622 Nonprofit

33,735 FCC Licensee

8,207 Non-Profit

6,545 Business Entity

2,390 Partnership

1,135 Professional Association

Related Guides

How to Look Up a Business in Any State How to Verify if a Business is Legitimate

Get Massachusetts business data via API

Developer plan includes a 14-day free trial. Cancel anytime.

Start Free Trial