 Upton Industries, a Kolene Company | Roseville | 1–19 | ◐ LIKELY ACTIVE |
| VGVenture Global Engineering | Sterling Height | 20–99 | ◐ LIKELY ACTIVE |
| WPWilko Plastic Inc | Romeo | 100–499 | ◐ LIKELY ACTIVE |
| DSDigitized Schematic Solutions LLC | Warren | — | ◐ LIKELY ACTIVE |
| SRShawn Rene Corporation | Harrison Township | — | ◐ LIKELY ACTIVE |
| CMCammand Machining LLC | Romeo | — | ◇ UNVERIFIED |
| CMColonial Mold INC | Clinton Twp | — | ◇ UNVERIFIED |
| EGExpress Gage INC | Romeo | — | ◇ UNVERIFIED |
| FIFabtronic INC | Macomb | — | ◇ UNVERIFIED |
| PTPlasco Tooling & Engineering LLC | Romeo | — | ◇ UNVERIFIED |
| RPRobovent Products Group | Sterling Heights | — | ◇ UNVERIFIED |
| ASAdvanced Systems and Controls, Inc. | Macomb | — | ◇ UNVERIFIED |
| ADAg Davis Gage & Engineering CO | Sterling Heights | — | ◇ UNVERIFIED |
| AAA&j Automation INC | Clinton Twp | — | ◇ UNVERIFIED |
| ACAnderson Cook INC - Mra Industries | Clinton Twp | — | ◇ UNVERIFIED |
| ACAnderson Cook Machine Tool | Clinton Township | — | ◇ UNVERIFIED |
| AMApex Mold & Engineering INC | Sterling Heights | — | ◇ UNVERIFIED |
| ASApplied Soil Water Technologies LLC | Warren | — | ◇ UNVERIFIED |
| AWAro Welding Technologies | Chesterfield | — | ◇ UNVERIFIED |
| BIBaird Investments, LLC | Sterling Heights | — | ◇ UNVERIFIED |
| BFBulldog Factory Service | Warren | — | ◇ UNVERIFIED |
| CTCarroll Tool & Die CO | Macomb | — | ◇ UNVERIFIED |
| CIComau INC Warren | Warren | — | ◇ UNVERIFIED |
| CTComplete Tooling Solutions LLC | Fraser | — | ◇ UNVERIFIED |
| COControl One INC | Sterling Heights | — | ◇ UNVERIFIED |
| CTCrane Technologies Group INC | Detroit | — | ◇ UNVERIFIED |
| CECreative Ergonomics Systems INC | Sterling Heights | — | ◇ UNVERIFIED |
| DFD & F Corporation | Sterling Heights | — | ◇ UNVERIFIED |
| DMD Mark INC | Chesterfield | — | ◇ UNVERIFIED |
| DTDominion Technologies | Roseville | — | ◇ UNVERIFIED |
| DCDorris CO | Fraser | — | ◇ UNVERIFIED |
| DIDuval Industries LLC | Sterling Heights | — | ◇ UNVERIFIED |
| DMDynamite Machining Properties, LLC | Shelby Township | — | ◇ UNVERIFIED |
| ETEnmark Tool & Gage Company INC | Fraser | — | ◇ UNVERIFIED |
| EREpic Refrigeration, LLC | Fraser | — | ◇ UNVERIFIED |
| FCFencerow Company LLC | Sterling Heights | — | ◇ UNVERIFIED |
| FDFlui Dyne Fluid Power | Fraser | — | ◇ UNVERIFIED |
| FTFreer Tool and Supply INC. | Clinton Township | — | ◇ UNVERIFIED |
| GPGage Pin Source INC | Chesterfield | — | ◇ UNVERIFIED |
| GMGch Machinery Division | Warren | — | ◇ UNVERIFIED |
 Global Tooling Systems | Macomb | — | ◇ UNVERIFIED |
| GTGrinders Tooling and Supply CORP | Clinton Township | — | ◇ UNVERIFIED |
| GTGrossel Tool Company | Fraser | — | ◇ UNVERIFIED |
| HMHercules Machine Tool & Die LLC | Warren | — | ◇ UNVERIFIED |
| HAHgs Aerospace | Fraser | — | ◇ UNVERIFIED |
| HMHVAC Mechanical LLC | New Baltimore | — | ◇ UNVERIFIED |
| JJJ & J Burning and Fabricating | Warren | — | ◇ UNVERIFIED |
| JMJM Mold Technologies Inc. | Warren | — | ◇ UNVERIFIED |
| JTJordan Tool CORP | Warren | — | ◇ UNVERIFIED |
| KKK & K Die INC | Sterling Heights | — | ◇ UNVERIFIED |
