| LWLincoln Wood Products | Merrill | WI | Wood Product Manufacturing321910 | 100-499 | ◐ LIKELY ACTIVE |
| MHMenzner Hardwoods CO. | Marathon | WI | Wood Product Manufacturing321113 | 100-499 | ◐ LIKELY ACTIVE |
| MGMgs Group North America INC | Germantown | WI | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| MPMiniature Precision Components INC | Walworth | WI | Machinery Manufacturing333514 | 100-499 | ◐ LIKELY ACTIVE |
| OPOlds Products CO. of Illinois | Pleasant Prairie | WI | Food Manufacturing311941 | 100-499 | ◐ LIKELY ACTIVE |
| PCPolyfab CORP | Sheboygan | WI | Plastics and Rubber Products Manufacturing326130 | 100-499 | ◐ LIKELY ACTIVE |
| PIPolyflex, INC. | Walworth | WI | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| PIPrimex INC | Lake Geneva | WI | Computer and Electronic Product Manufacturing334518 | 100-499 | ◐ LIKELY ACTIVE |
| PIPutzmeister INC | Sturtevant | WI | Machinery Manufacturing333120 | 100-499 | ◐ LIKELY ACTIVE |
| SPScientific Protein Labs INC | Waunakee | WI | Food Manufacturing311999 | 100-499 | ◐ LIKELY ACTIVE |
| WBWestern Building Products INC | Milwaukee | WI | Wood Product Manufacturing321912 | 100-499 | ◐ LIKELY ACTIVE |
| WUWilo USA | Cedarburg | WI | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| WPWorzalla Publishing CO INC | Stevens Point | WI | Printing and Related Support Activities323110 | 100-499 | ◐ LIKELY ACTIVE |
| PPPortage Plastics Corporation | Portage | WI | Plastics and Rubber Products Manufacturing326199 | 100-499 | ▲ REPORTED CLOSED |
| SCSiny CORP. | Janesville | WI | Textile Mills313241 | 100-499 | ◇ UNVERIFIED |
| 1M1009 - Milwaukee | Milwaukee | WI | Beverage and Tobacco Product Manufacturing312111 | 100-499 | ◐ LIKELY ACTIVE |
| 3304a | Milwaukee | WI | Food Manufacturing311612 | 100-499 | ◐ LIKELY ACTIVE |
| EC"4006 - Eau Claire Extrusion" | Eau Claire | WI | Chemical Manufacturing325211 | 100-499 | ◐ LIKELY ACTIVE |
| 4E4Front Engineered Solutions - Kenosha | Kenosha | WI | Fabricated Metal Product Manufacturing332321 | 100-499 | ◐ LIKELY ACTIVE |
| 4E4Front Engineered Solutions- Muskego | Muskego | WI | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| ANActus Nutrition - Fond Du Lac | Fond Du Lac | WI | Food Manufacturing311514 | 100-499 | ◐ LIKELY ACTIVE |
| ANActus Nutrition - Wautoma | Wautoma | WI | Food Manufacturing311999 | 100-499 | ◐ LIKELY ACTIVE |
| AFAdvanced Fiber Products | La Crosse | WI | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| AFAdvanced Fiber Products | LaCrosse | WI | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| ACAFP Clear Lake | Clear Lake | WI | Food Manufacturing311513 | 100-499 | ◐ LIKELY ACTIVE |
| AWAgropur - Weyauwega | Weyauwega | WI | Food Manufacturing311513 | 100-499 | ◐ LIKELY ACTIVE |
| ASAhlstrom Stevens Point | Stevens Point | WI | Paper Manufacturing322121 | 100-499 | ◐ LIKELY ACTIVE |
| AMAJ Manufacturing, Inc. 105 Riggs Street | Bloomer | WI | Fabricated Metal Product Manufacturing332321 | 100-499 | ◐ LIKELY ACTIVE |
| AAlkar | Lodi | WI | Machinery Manufacturing333241 | 100-499 | ◐ LIKELY ACTIVE |
Alliance Laundry Systems - Plant 3 | Manitowoc | WI | Machinery Manufacturing333318 | 100-499 | ◐ LIKELY ACTIVE |
| AAlmena | Almena | WI | Food Manufacturing311513 | 100-499 | ◐ LIKELY ACTIVE |
| AAmcor | Chippewa Falls | WI | Plastics and Rubber Products Manufacturing326112 | 100-499 | ◐ LIKELY ACTIVE |
| AFAmcor Flexibles Madison | Madison | WI | Plastics and Rubber Products Manufacturing326112 | 100-499 | ◐ LIKELY ACTIVE |
| AFAmcor Flexibles North America | Boscobel | WI | Plastics and Rubber Products Manufacturing326112 | 100-499 | ◐ LIKELY ACTIVE |
| APAmerican Packaging Corporation - Deforest | Deforest | WI | Printing and Related Support Activities323111 | 100-499 | ◐ LIKELY ACTIVE |
| APAmerican Phoenix, Inc. - Eau Claire | Eau Claire | WI | Plastics and Rubber Products Manufacturing326291 | 100-499 | ◐ LIKELY ACTIVE |
| AAmery | Amery | WI | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| ALAmery LG | Amery | WI | Nonmetallic Mineral Product Manufacturing327215 | 100-499 | ◐ LIKELY ACTIVE |
| ACAMSOIL Corporate | Superior | WI | Petroleum and Coal Products Manufacturing324191 | 100-499 | ◐ LIKELY ACTIVE |
| AAMSOIL (Superior) | Superior | WI | Petroleum and Coal Products Manufacturing324191 | 100-499 | ◐ LIKELY ACTIVE |
| ACAndis Company - Renaissance | Sturtevant | WI | Electrical Equipment, Appliance & Component Manufacturing335210 | 100-499 | ◐ LIKELY ACTIVE |
| AAppleton | Appleton | WI | Plastics and Rubber Products Manufacturing326112 | 100-499 | ◐ LIKELY ACTIVE |
| AGAppleton Group, LLC | South Milwaukee | WI | Electrical Equipment, Appliance & Component Manufacturing335932 | 100-499 | ◐ LIKELY ACTIVE |
| AMAptar - Mukwonago | Mukwonago | WI | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| AGArdagh Glass Packaging Burlington | Burlington | WI | Nonmetallic Mineral Product Manufacturing327213 | 100-499 | ◐ LIKELY ACTIVE |
| AFAshley Furniture - Chippewa | Chippewa Falls | WI | Furniture and Related Product Manufacturing337121 | 100-499 | ◐ LIKELY ACTIVE |
| ACAutomation Components, Inc. (ACI) | Middleton | WI | Computer and Electronic Product Manufacturing334513 | 100-499 | ◐ LIKELY ACTIVE |
| BBadger | Grafton | WI | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
| BUBalcan USA, Inc. | Pleasant Prairie | WI | Plastics and Rubber Products Manufacturing326111 | 100-499 | ◐ LIKELY ACTIVE |
| BBBall Beverage Pkg 171 Fort Atkinson | Fort Atkinson | WI | Fabricated Metal Product Manufacturing332431 | 100-499 | ◐ LIKELY ACTIVE |