| ETErvin Technologies | Tecumseh | MI | Nonmetallic Mineral Product Manufacturing327910 | 20-99 | ◐ LIKELY ACTIVE |
| PWPentamere Winery, LLC | Tecumseh | MI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| EAExtrunet America | Tecumseh | MI | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| LSLenawee Stamping CORP | Tecumseh | MI | Transportation Equipment Manufacturing336370 | — | ◇ UNVERIFIED |
| TPTecumseh Products Company | Tecumseh | MI | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| APAkers Packaging Service Group - Tecumseh Division | Tecumseh | MI | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| CPCreek Plastics | Tecumseh | MI | Plastics and Rubber Products Manufacturing326122 | 1-19 | ◐ LIKELY ACTIVE |
| NANational Aircraft Service INC | Tecumseh | MI | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
PolyJohn Enterprises Tecumseh | Tecumseh | MI | Plastics and Rubber Products Manufacturing326191 | 20-99 | ◐ LIKELY ACTIVE |
| SSSuperior Sales & Distribution LLC | Tecumseh | MI | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| UIUniloy, Inc. | Tecumseh | MI | Machinery Manufacturing333511 | 100-499 | ◐ LIKELY ACTIVE |
| 1E124 E Chicago Holdings LLC | Tecumseh | MI | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| DEDcdidit Enterprise LLC Dba Ididit INC | Tecumseh | MI | Transportation Equipment Manufacturing336330 | — | ◇ UNVERIFIED |
| DIDiggyPod II, LLC | Tecumseh | MI | Printing and Related Support Activities323117 | — | ◇ UNVERIFIED |
| GCGlycon CORP | Tecumseh | MI | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| MLMilacron LLC | Tecumseh | MI | Machinery Manufacturing333511 | — | ◇ UNVERIFIED |
| MMMilacron Marketing Company, LLC | Tecumseh | MI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| RTRare Tool INC | Tecumseh | MI | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| SHSchafer Hardwood Flooring CO | Tecumseh | MI | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| TBTecumseh Brewing Company LLC | Tecumseh | MI | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| TPTecumseh Prod CO | Tecumseh | MI | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| TMTotal Molding Solutions INC | Tecumseh | MI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |