317-622-8970Search all companies →Largest Healthcare & Life Science Companies in Wisconsin (2026)
Factur's directory lists 67,420 healthcare & life science companies in Wisconsin. These are the 10 largest of them by annual revenue, led by Milwaukee Bucks ($4B), University of Wisconsin Hospitals and Clinics Authority ($3.5B) and ThedaCare ($3.2B).
Size mix: of the 67,420 with a known headcount, 99% have 1-50 employees, 487 companies 51-200, 173 companies 201-1000, 24 companies 1001-5000 and 15 companies 5001+. 76 employ more than 500 people.
The 10 largest healthcare & life science companies in Wisconsin by annual revenue
| # | Company | City | Employees | Annual revenue |
|---|---|---|---|---|
| 1 | Milwaukee Bucks | Milwaukee | 680 | $4B |
| 2 | University of Wisconsin Hospitals and Clinics Authority | Madison | 24,000 | $3.5B |
| 3 | ThedaCare | Appleton | 22,000 | $3.2B |
| 4 | University of Wisconsin-Madison | Madison | 26,755 | $3B |
| 5 | Marshfield Clinic Health System | Marshfield | 12,000 | $2.9B |
| 6 | Froedtert & The Medical College of Wisconsin | Milwaukee | 17,727 | $2.6B |
| 7 | Emplify Health | Green Bay | 15,000 | $2.2B |
| 8 | Aspirus Inc | Wausau | 14,000 | $2.1B |
| 9 | Culver Franchising System | Prairie Du Sac | 25,000 | $1.8B |
| 10 | Children's Wisconsin | Milwaukee | 6,200 | $1.7B |
How this list is ranked
Companies are ranked by annual revenue (USD) as recorded on each company's profile in the Factur directory, highest first; companies with the same revenue are ordered by employee count. Only companies with a positive revenue figure on file are ranked, so a large private company with no reported revenue can be missing. The list covers companies whose record places them in Wisconsin and whose Factur industry is Healthcare & Life Science. Figures are a snapshot of the directory, refreshed when the rankings are regenerated; open a profile for its current data.