Highland Engineering, INC. | Howell | 20–99 | ● ACTIVE |
Micro Gauge, INC | Brighton | 100–499 | ● ACTIVE |
| AMAllor Manufacturing, INC. | Brighton | 20–99 | ● ACTIVE |
| EMExtreme Machine INC | Whitmore Lake | — | ● ACTIVE |
Spiral Industries, INC. | Howell | — | ● ACTIVE |
Bradhart Products, INC. | Brighton | — | ● ACTIVE |
Detroit Ammunition Company LLC | South Lyon | — | ● ACTIVE |
Johnson Enterprises-johnson Wash Systems LLC | Whitmore Lake | — | ● ACTIVE |
Lidell Specialty Products, INC. | Whitmore Lake | — | ● ACTIVE |
Raider Defense, LLC | South Lyon | — | ● ACTIVE |
Tube Wright, INC | Brighton | — | ● ACTIVE |
| PSPrecision Stamping Co-howell | Howell | 20–99 | ◐ LIKELY ACTIVE |
| WCWyman-gordon Company Brighton Operations | Brighton | 100–499 | ◐ LIKELY ACTIVE |
| BNBrighton N C Machine CORP | Brighton | 20–99 | ▲ REPORTED CLOSED |
| DCDiamond Chrome Plating INC | Howell | — | ◐ LIKELY ACTIVE |
| SASpring Arbor Coatings - Fowlerville | Fowlerville | 20–99 | ◐ LIKELY ACTIVE |
| MMMascotech Manufacturing & Assembly Oper | Brighton | — | ◇ UNVERIFIED |
| TATrw Automotive | Fenton | — | ◇ UNVERIFIED |
| ATAction Tool & Machine INC | Brighton | 20–99 | ◐ LIKELY ACTIVE |
| BPBradhart Products INC | Brighton | 20–99 | ◐ LIKELY ACTIVE |
| DADmi Automotive INC | Howell | — | ◐ LIKELY ACTIVE |
| JMJNB Machinery LLC | Fowlerville | 20–99 | ◐ LIKELY ACTIVE |
| KMKrauss Maffei- Michigan | Brighton | 20–99 | ◐ LIKELY ACTIVE |
| MRMichigan Rod Products, INC | Howell | — | ◐ LIKELY ACTIVE |
| MOMnp Ovidon Manufacturing LLC | Howell | 20–99 | ◐ LIKELY ACTIVE |
| RRRefrigeration Research INC | Brighton | 20–99 | ◐ LIKELY ACTIVE |
| TWTube Wright INC | Brighton | 20–99 | ◐ LIKELY ACTIVE |
| UAUltra Aluminum | Howell | 100–499 | ◐ LIKELY ACTIVE |
| BTBent Tube INC | Fowlerville | — | ◇ UNVERIFIED |
| MCMarch Coatings INC | Brighton | — | ◇ UNVERIFIED |
| MCMarch Coatings Plant 2 | Brighton | — | ◇ UNVERIFIED |
| MMMerchants Metals | Howell | — | ◇ UNVERIFIED |
| PMProgressive Metal Forming INC | Hamburg | — | ◇ UNVERIFIED |
| RAR and D Screw Products INC | Howell | — | ◇ UNVERIFIED |
| WMWeld Mold Co-brighton | Brighton | — | ◇ UNVERIFIED |
| AAirman | Brighton | 20–99 | ◐ LIKELY ACTIVE |
| PBPonski, Bogdan M | Brighton | — | ◐ LIKELY ACTIVE |
| VMVectorall Manufacturing, INC | Brighton | — | ◐ LIKELY ACTIVE |
| APAirman Products LLC | Brighton | — | ◇ UNVERIFIED |
| ATAmerican Tooling and Prototype, LLC | Pinckney | — | ◇ UNVERIFIED |
| DIDedoes Innovative Manufacturing INC | Fowlerville | — | ◇ UNVERIFIED |
| FAFalcon Asset Management LLC | Howell | — | ◇ UNVERIFIED |
| HPHelical Pier Distribution | Howell | — | ◇ UNVERIFIED |
| JNJ N B Machining CO INC | Fowlerville | — | ◇ UNVERIFIED |
| LAL a Burnhart INC | Brighton | — | ◇ UNVERIFIED |
| MNMagnatron NC Pattern & Mfg, Inc. | Howell | — | ◇ UNVERIFIED |
| SASmall Automation Services, LLC | Howell | — | ◇ UNVERIFIED |
| SSSmede-son Steel & Building Supply Company | Brighton | — | ◇ UNVERIFIED |
| TTTram Tool Company Inc | Howell | — | ◇ UNVERIFIED |
| TTTrusted Tool Mfg., INC. | Fenton | — | ◇ UNVERIFIED |