| WPWausau Paper CORP Brokaw Mill | Brokaw, WI | Paper Manufacturing322120 | — | ◇ UNVERIFIED |
| WMWilson-hurd Mfg CO INC | Wausau, WI | Fabricated Metal Product Manufacturing332110 | — | ◇ UNVERIFIED |
| WMWolfcraft Mfg INC | Marshfield, WI | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| WEWoods Equipment Company | Schofield, WI | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| 330Schofield | Scholfield, WI | Wood Product Manufacturing321999 | 20–99 | ◐ LIKELY ACTIVE |
| AFAbbyland Foods | Abbotsford, WI | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| CICenflex Inc | Weston, WI | Fabricated Metal Product Manufacturing332999 | 20–99 | ◐ LIKELY ACTIVE |
| CFColby Flavors | Colby, WI | Food Manufacturing311513 | 100–499 | ◐ LIKELY ACTIVE |
| CFCountry Fresh Meats, Inc. | Weston, WI | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| CFCrystal Finishing Systems - Schofield | Schofield, WI | Fabricated Metal Product Manufacturing332812 | 500+ | ◐ LIKELY ACTIVE |
| CMCTech Manufacturing | Weston, WI | Furniture and Related Product Manufacturing337127 | 100–499 | ◐ LIKELY ACTIVE |
| CGCustom Glass Products Inc. | Weston, WI | Nonmetallic Mineral Product Manufacturing327215 | 20–99 | ◐ LIKELY ACTIVE |
| CMCustom Meats of Marathon, Inc. | Marathon, WI | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| EDEpiroc Drilling Tools LLS | Mosinee, WI | Machinery Manufacturing333120 | 20–99 | ◐ LIKELY ACTIVE |
| EDEquipment Depot Wisconsin, Inc. - Weston | Weston, WI | Machinery Manufacturing333924 | 1–19 | ◐ LIKELY ACTIVE |
| FPForge Prosthetics LLC | Wausau, WI | Miscellaneous Manufacturing339113 | — | ◐ LIKELY ACTIVE |
| GWGoetsch's Welding & Machine, Inc. | Merrill, WI | Fabricated Metal Product Manufacturing332999 | 20–99 | ◐ LIKELY ACTIVE |
| GLGreat Lakes Cheese Company, Inc. - Wausau, WI | Wausau, WI | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| GBGreen Bay Packaging Wausau Division | Wausau, WI | Paper Manufacturing322211 | 100–499 | ◐ LIKELY ACTIVE |
| HGHayes Graphics | Mosinee, WI | Printing and Related Support Activities323111 | 1–19 | ◐ LIKELY ACTIVE |
| JRJarp Reman | Wausau, WI | Machinery Manufacturing333995 | 20–99 | ◐ LIKELY ACTIVE |
| KCKafka Conveyors & Equipment | Mosinee, WI | Machinery Manufacturing333922 | 20–99 | ◐ LIKELY ACTIVE |
| KGKafka Granite LLC | Mosinee, WI | Nonmetallic Mineral Product Manufacturing327991 | 20–99 | ◐ LIKELY ACTIVE |
| KMK&A Mfg., Inc. | Schofield, WI | Furniture and Related Product Manufacturing337214 | 20–99 | ◐ LIKELY ACTIVE |
| KLKingspan Light and Air Fenestration - Wausau | Wausau, WI | Fabricated Metal Product Manufacturing332321 | 20–99 | ◐ LIKELY ACTIVE |
| LMLange Machine & Tool CO LLC | Merrill, WI | Fabricated Metal Product Manufacturing332710 | 1–19 | ◐ LIKELY ACTIVE |
| LFLang Furniture, Inc. | Marshfield, WI | Furniture and Related Product Manufacturing337122 | 20–99 | ◐ LIKELY ACTIVE |
| LTLiberty Tire Recycling - Mosinee, WI | Mosinee, WI | Plastics and Rubber Products Manufacturing326299 | 1–19 | ◐ LIKELY ACTIVE |
| LOLignetics of Wisconsin - Marth Companies | Marathon City, WI | Wood Product Manufacturing321999 | 20–99 | ◐ LIKELY ACTIVE |
| MCMarathon Cheese Corporation | Marathon, WI | Food Manufacturing311513 | 500+ | ◐ LIKELY ACTIVE |
| MCMarathon - CMC | Marathon, WI | Nonmetallic Mineral Product Manufacturing327320 | 100–499 | ◐ LIKELY ACTIVE |
| MAMast Automation LLC | Weston, WI | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| MFMekong Fresh Meats, Inc. | Mosinee, WI | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| MFMekong Fresh Meats, Inc. | Mosinee, WI | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| MMModern Manufacturing International | Wausau, WI | Primary Metal Manufacturing331210 | 20–99 | ◐ LIKELY ACTIVE |
| MMMosinee Mill | Mosinee, WI | Paper Manufacturing322121 | 100–499 | ◐ LIKELY ACTIVE |
| MBMountain Bay Winery | Hatley, WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| MCMullins Cheese - Marshfield | Marshfield, WI | Food Manufacturing311513 | 20–99 | ◐ LIKELY ACTIVE |
| MWMullins Whey | Mosinee, WI | Food Manufacturing311514 | 20–99 | ◐ LIKELY ACTIVE |
| NMNelson Miller Group - Wausau WI | Wausau, WI | Computer and Electronic Product Manufacturing334419 | 20–99 | ◐ LIKELY ACTIVE |
| NSNorlen - Schofield | Schofield, WI | Fabricated Metal Product Manufacturing332312 | 100–499 | ◐ LIKELY ACTIVE |
| PMPRP Manufacturing | Weston, WI | Plastics and Rubber Products Manufacturing326121 | 1–19 | ◐ LIKELY ACTIVE |
| RRoastar | Wausau, WI | Paper Manufacturing322220 | 100–499 | ◐ LIKELY ACTIVE |
| RRothschild | Rothschild, WI | Paper Manufacturing322121 | 100–499 | ◐ LIKELY ACTIVE |
| RMRyan Manufacturing INC. | Schofield, WI | Fabricated Metal Product Manufacturing332710 | 20–99 | ◐ LIKELY ACTIVE |
| SSchofield | Schofield, WI | Food Manufacturing311513 | 20–99 | ◐ LIKELY ACTIVE |
| SSSpecialty Sausage | Abbotsford, WI | Food Manufacturing311612 | 100–499 | ◐ LIKELY ACTIVE |
| SPStyrene Products - Schofield | Schofield, WI | Plastics and Rubber Products Manufacturing326140 | 20–99 | ◐ LIKELY ACTIVE |
| SSSunburst Shutters | Wausau, WI | Wood Product Manufacturing321918 | 20–99 | ◐ LIKELY ACTIVE |
| SPSun Printing LLC | Wausau, WI | Printing and Related Support Activities323111 | 20–99 | ◐ LIKELY ACTIVE |