Wisconsin
- Air Wisconsin
- Alliant Energy
- American Family Insurance
- Amsoil
- Ashley Furniture
- Associated Banc-Corp
- Bemis Company
- Cousins Subs
- Culver's
- Fiserv
- Freight Runners Express
- Good Humor-Breyers
- Harley-Davidson
- Jockey International
- Johnson Controls
- S. C. Johnson & Son
- Johnsonville Foods
- Journal Communications
- Kohler Company
- Kohl's
- Kopp's Frozen Custard
- Lake Express
- Lands' End
- Manpower Inc.
- Marcus Corporation
- Marshall & Ilsley Corporation (M&I Bank)
- Master Lock
- Menards
- Midwest Airlines
- Milio's Sandwiches
- Milwaukee Electric Tool Company
- Omanhene Cocoa Bean Company
- Oshkosh Truck
- Pacific Cycle(Mongoose (bicycles))
- Promotions Unlimited, owners of Ben Franklin Stores
- Rockwell Automation
- Roundy's
- Sentry Foods
- Sentry Insurance
- Schneider National
- Schreiber Foods
- ShopKo Stores
- Skyway Airlines, operating as Midwest Connect for Midwest Airlines
- Snap-on
- Trane
- Thrivent Financial for Lutherans
- Trek Bicycle Corporation
- Wisconsin Energy Corporation
- Woodman's Food Market
Read more about this topic: List Of Companies Of The United States By State