All States/

Wisconsin Business Entity Search

Search Wisconsin LLCs, corporations, and partnerships via API. Structured JSON from IRS Exempt Organizations Business Master File. 338,117 entities available.

338,117
Total Entities
99,935
Sole Proprietorships
93,270
LLCs
80,427
Corporations

Search Wisconsin entities

Entity types in Wisconsin

Sole Proprietorship
99,935LLC
93,270Corporation
80,427Nonprofit
36,000FCC Licensee
13,469Non-Profit
8,749Partnership
3,291LLP
1,248Business Entity
1,135Professional Association
593

Related Guides

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

Get Wisconsin business data via API

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

Start Free Trial
Wisconsin Business Entity Search — LLCs, Corporations & More | Filed.dev