| Elite Tooling Milling, Turning, EDM | Kalamazoo, MI | MillingTurningEDM | - |
| Epic Machine, Inc Milling, Turning, Stamping, Casting, EDM, Grinding, Finishing · ISO 9001 | Fenton, MI | MillingTurningStampingCastingEDMGrindingFinishing | ISO 9001 |
| Espas Inc Laser, Bending, Welding, Stamping, Assembly · ISO 9001 | Clinton Township, MI | LaserBendingWeldingStampingAssembly | ISO 9001 |
| Executive Precision Machine, LLC Turning · ISO 9001 | Traverse City, MI | Turning | ISO 9001 |
| Extreme Machine Inc Milling, Turning, Casting · ISO 9001, IATF 16949 | Whitmore Lake, MI | MillingTurningCasting | ISO 9001, IATF 16949 |
| Fitzpatrick Manufacturing Co Milling, Turning, Grinding · ISO 9001, AS9100, ITAR, ISO 13485 | Sterling Heights, MI | MillingTurningGrinding | ISO 9001, AS9100, ITAR, ISO 13485 |
| Forge Precision Co Milling, Turning, Welding · ISO 9001 | Farmington Hills, MI | MillingTurningWelding | ISO 9001 |
| Futr Applications LLC Milling | Jackson, MI | Milling | - |
| Gaishin Manufacturing Milling, Turning · AS9100, ISO 13485 | Benton Harbor, MI | MillingTurning | AS9100, ISO 13485 |
| Glsv Inc Milling, Turning, Waterjet, Bending, Welding · ISO 9001 | Calumet, MI | MillingTurningWaterjetBendingWelding | ISO 9001 |
| GR Innovations LLC Laser, Finishing | Lapeer, MI | LaserFinishing | - |
| High Star Corp Milling, Turning, Bending, Welding, Stamping, Grinding, Finishing · ISO 9001 | Westland, MI | MillingTurningBendingWeldingStampingGrindingFinishing | ISO 9001 |
| Ideal Technology Corp Milling, Turning, Welding, Casting, Metal AM, Grinding · ISO 9001 | Shelby Township, MI | MillingTurningWeldingCastingMetal AMGrinding | ISO 9001 |
| Independent Machine Company Milling, Turning, Laser, Welding, Grinding | Escanaba, MI | MillingTurningLaserWeldingGrinding | - |
| International Mold Corporation Milling, Waterjet | Clinton Township, MI | MillingWaterjet | - |
| Iridium Manufacturing Milling, Turning, Waterjet, EDM, Grinding · ISO 9001 | Washington, MI | MillingTurningWaterjetEDMGrinding | ISO 9001 |
| J & S Technologies Inc Milling, Turning, Grinding, Finishing · ISO 9001 | Nunica, MI | MillingTurningGrindingFinishing | ISO 9001 |
| J&M Machining Milling, Turning, Welding, Casting, Finishing · ISO 9001 | Norton Shores, MI | MillingTurningWeldingCastingFinishing | ISO 9001 |
| K&M Milling, Turning, Laser, Welding, Assembly · ISO 9001 | Cassopolis, MI | MillingTurningLaserWeldingAssembly | ISO 9001 |
| Kinross Fab & Machine Inc Milling, Turning, Laser, Welding, Grinding, Finishing | Kincheloe, MI | MillingTurningLaserWeldingGrindingFinishing | - |
| Kriewall Enterprises Inc Milling, Laser, Welding, Stamping, EDM, Finishing · ISO 9001 | Romeo, MI | MillingLaserWeldingStampingEDMFinishing | ISO 9001 |
| L.a. Martin Company Milling, Turning, Bending, Welding, Grinding, Finishing · ISO 9001 | Dearborn, MI | MillingTurningBendingWeldingGrindingFinishing | ISO 9001 |
| LC Manufacturing LLC Milling, Forging · ISO 9001, IATF 16949 | Lake City, MI | MillingForging | ISO 9001, IATF 16949 |
| Massie Mfg Inc Milling, Turning, Laser, Waterjet, Bending, Welding, Finishing · ITAR | Baraga, MI | MillingTurningLaserWaterjetBendingWeldingFinishing | ITAR |
| Met-L-Tec, LLC Milling, Laser | Temperance, MI | MillingLaser | - |
| Metal Components LLC Turning, Waterjet, Bending, Welding, Finishing, Assembly · ISO 9001 | Grand Rapids, MI | TurningWaterjetBendingWeldingFinishingAssembly | ISO 9001 |
| Metalbuilt LLC Milling, Turning, Laser, Welding, Stamping, Finishing · ISO 9001, AS9100, IATF 16949 | Chesterfield, MI | MillingTurningLaserWeldingStampingFinishing | ISO 9001, AS9100, IATF 16949 |
| MFC Netform LLC Milling, Laser, Waterjet, Bending, Welding, Stamping, Forging, EDM, Grinding · ISO 9001, IATF 16949 | Shelby Township, MI | MillingLaserWaterjetBendingWeldingStampingForgingEDMGrinding | ISO 9001, IATF 16949 |
| Micron Precision Machining Inc Milling, Turning, EDM, Grinding | Saginaw, MI | MillingTurningEDMGrinding | - |
| MP Components Casting · ISO 9001 | Byron Center, MI | Casting | ISO 9001 |
| Multi Machining Capabilities, Inc. Milling, Turning, EDM | Romulus, MI | MillingTurningEDM | - |
| Next Level Manufacturing LLC Milling, Turning, Waterjet, EDM | Jenison, MI | MillingTurningWaterjetEDM | - |
| Omega Tool & Machine Casting · ISO 9001 | Battle Creek, MI | Casting | ISO 9001 |
| Omni Precision Components Milling, Turning, Finishing · ISO 9001 | Holland, MI | MillingTurningFinishing | ISO 9001 |
| Paragon D & E Milling, Bending, Casting · ISO 9001, AS9100, ITAR, CMMC | Grand Rapids, MI | MillingBendingCasting | ISO 9001, AS9100, ITAR, CMMC |
| Patriot Manufacturing LLC Milling, Turning · ISO 9001 | Plymouth, MI | MillingTurning | ISO 9001 |
| Patterson Precision Manufacturing Inc Milling, Turning, Stamping, Grinding · ISO 9001, NADCAP | Norton Shores, MI | MillingTurningStampingGrinding | ISO 9001, NADCAP |
| PJF Engineered Solutions, Inc Milling, Welding, Metal AM, EDM, Grinding, Finishing · ISO 9001, ITAR | Rockford, MI | MillingWeldingMetal AMEDMGrindingFinishing | ISO 9001, ITAR |
| Platinum Engineering Inc Milling, Turning, Forging · ISO 9001, AS9100 | Lowell, MI | MillingTurningForging | ISO 9001, AS9100 |
| Polaris Engineering Inc Milling, Turning, Welding, EDM, Grinding | Fraser, MI | MillingTurningWeldingEDMGrinding | - |
| Pollington Machine Tool Inc Milling, Turning, Laser, Welding, Assembly · AS9100 | Marion, MI | MillingTurningLaserWeldingAssembly | AS9100 |
| Precision Advanced Machining Co Milling, Turning, Grinding · ISO 9001, AS9100, ITAR | Clinton Township, MI | MillingTurningGrinding | ISO 9001, AS9100, ITAR |
| Proto Tool Company Inc Milling, Turning · ISO 9001 | Farmington Hills, MI | MillingTurning | ISO 9001 |
| Protomatic Inc Milling, Turning, Welding, Grinding · ISO 9001, ITAR, ISO 13485, CMMC | Dexter, MI | MillingTurningWeldingGrinding | ISO 9001, ITAR, ISO 13485, CMMC |
| RDM Enterprises Co., Inc Stamping | Port Huron, MI | Stamping | - |
| RMC Engine Rebuilding Equipment, Inc Milling | Saginaw, MI | Milling | - |
| Robmar Precision, Inc Milling, Turning · ISO 9001, ITAR | Westland, MI | MillingTurning | ISO 9001, ITAR |
| S & S Die Co Milling, Turning, Welding, EDM, Grinding | Lansing, MI | MillingTurningWeldingEDMGrinding | - |
| Sales & Engineering Inc Milling, Turning, Bending, Welding, Stamping | Livonia, MI | MillingTurningBendingWeldingStamping | - |
| Sigma Machine Inc. Milling, EDM | Kalamazoo, MI | MillingEDM | - |