| West Michigan Precision Machining Milling, Turning, Bending · ISO 9001, AS9100, ITAR | Walker, MI | MillingTurningBending | ISO 9001, AS9100, ITAR |
| Digitrace Machine Works Ltd Milling, Welding, Stamping, Finishing | Wayland, MI | MillingWeldingStampingFinishing | - |
| Warner Bros, Foundry Co Welding, Casting | Roseville, MI | WeldingCasting | - |
| Wilson Precision Products LLC Milling, Welding, Grinding · ITAR | Temperance, MI | MillingWeldingGrinding | ITAR |
| Wolverine Bronze Co Welding, Casting | Roseville, MI | WeldingCasting | - |
| Wolverine Machine Products Company Milling, Turning, Waterjet, Welding, Grinding, Finishing · ISO 9001 | Holly, MI | MillingTurningWaterjetWeldingGrindingFinishing | ISO 9001 |
| Worldtek Industries, LLC Turning, Bending, Welding · ISO 9001, AS9100, ITAR | Romulus, MI | TurningBendingWelding | ISO 9001, AS9100, ITAR |
| West Michigan Fab Corp Milling, Laser | Belding, MI | MillingLaser | - |
| Witco Inc Milling, Turning, Grinding · ISO 9001, AS9100, ITAR, NADCAP | Greenwood, MI | MillingTurningGrinding | ISO 9001, AS9100, ITAR, NADCAP |
| Air-Way Manufacturing Company Finishing · ISO 9001 | Olivet, MI | Finishing | ISO 9001 |
| Elite Welding & Fabrication LLC Bending, Welding | Galesburg, MI | BendingWelding | - |
| K and W Tool and Machine, Inc Milling, Laser, Waterjet, Bending, Welding · ISO 9001, ITAR | Greenville, MI | MillingLaserWaterjetBendingWelding | ISO 9001, ITAR |
| Schaefer Screw Products Co Milling, Turning, Grinding, Finishing | Garden City, MI | MillingTurningGrindingFinishing | - |
| SpecWeld Milling, Welding, Assembly · ISO 9001 | Lake Orion, MI | MillingWeldingAssembly | ISO 9001 |
| W. G. Benjey, Inc Milling, Turning, Welding, Finishing | Alpena, MI | MillingTurningWeldingFinishing | - |
| Arrow Automotive Milling, Turning, Grinding, Assembly · IATF 16949 | Grand Rapids, MI | MillingTurningGrindingAssembly | IATF 16949 |
| Glpc Fab, LLC Laser, Punching, Bending, Welding, Finishing, Assembly | Walled Lake, MI | LaserPunchingBendingWeldingFinishingAssembly | - |
| High Star Corp Milling, Turning, Bending, Welding, Stamping, Grinding, Finishing · ISO 9001 | Westland, MI | MillingTurningBendingWeldingStampingGrindingFinishing | ISO 9001 |
| Iridium Manufacturing Milling, Turning, Waterjet, EDM, Grinding · ISO 9001 | Washington, MI | MillingTurningWaterjetEDMGrinding | ISO 9001 |
| New Method Steel Stamps Inc Milling, Turning, Laser, Bending, Stamping · ISO 9001 | Fraser, MI | MillingTurningLaserBendingStamping | ISO 9001 |
| Northfield Manufacturing, Inc Welding, Casting | Westland, MI | WeldingCasting | - |
| Professional Metal Works Bending, Laser, Welding · ISO 9001 | Lansing, MI | BendingLaserWelding | ISO 9001 |
| Stampede Die Corp Milling, Turning, Waterjet, Welding, Casting, EDM | Wayland, MI | MillingTurningWaterjetWeldingCastingEDM | - |
| Troy Laser & Fab LLC Milling, Laser, Waterjet, Bending, Welding | Warren, MI | MillingLaserWaterjetBendingWelding | - |
| Extreme Machine Inc Milling, Turning, Casting · ISO 9001, IATF 16949 | Whitmore Lake, MI | MillingTurningCasting | ISO 9001, IATF 16949 |
| Kriewall Enterprises Inc Milling, Laser, Welding, Stamping, EDM, Finishing · ISO 9001 | Romeo, MI | MillingLaserWeldingStampingEDMFinishing | ISO 9001 |
| Lidell Specialty Products, Inc Stamping · ISO 9001 | Whitmore Lake, MI | Stamping | ISO 9001 |
| Menco LLC Welding, Assembly | Wallace, MI | WeldingAssembly | - |
| Michigan CNC Tool, Inc Milling, Turning, EDM, Grinding · ISO 9001 | Whitmore Lake, MI | MillingTurningEDMGrinding | ISO 9001 |
| Precision Mold & Machining Services Inc Milling, EDM · ITAR | Warren, MI | MillingEDM | ITAR |
| Robmar Precision, Inc Milling, Turning · ISO 9001, ITAR | Westland, MI | MillingTurning | ISO 9001, ITAR |
| Taylor Turning Inc Milling, Turning, Grinding | Wixom, MI | MillingTurningGrinding | - |
| Tri-County Precision Grinding Inc Milling, Grinding | Warren, MI | MillingGrinding | - |
| 4 Flutes Machining, LLC Milling, Turning, Laser, Waterjet, Finishing · ITAR | Vicksburg, MI | MillingTurningLaserWaterjetFinishing | ITAR |
| A & S Industrial LLC Turning, Laser, Bending, Welding | Chassell, MI | TurningLaserBendingWelding | - |
| Accu Die & Mold, Inc Milling, Turning, Welding, Casting, EDM | Stevensville, MI | MillingTurningWeldingCastingEDM | - |
| Accu-Tech Manufacturing Milling, Turning, Welding | Shelby Township, MI | MillingTurningWelding | - |
| Advanced Automotive Group, L.L.C Milling, Welding, Stamping | Algonac, MI | MillingWeldingStamping | - |
| Advanced Mechatronics Corp Milling, Turning, Welding, EDM, Grinding | Norton Shores, MI | MillingTurningWeldingEDMGrinding | - |
| Airtec Corp Laser, Punching, Bending, Welding, Grinding, Finishing | Detroit, MI | LaserPunchingBendingWeldingGrindingFinishing | - |
| Albion Machine and Tool LLC Milling, Turning, Laser, Welding, Grinding, Finishing | Albion, MI | MillingTurningLaserWeldingGrindingFinishing | - |
| Alto Precision, Inc Milling, Turning, Welding, Grinding | Grand Rapids, MI | MillingTurningWeldingGrinding | - |
| Am Specialties, Inc Milling, Welding, Stamping, EDM, Grinding, Finishing, Assembly · ISO 9001 | Sterling Heights, MI | MillingWeldingStampingEDMGrindingFinishingAssembly | ISO 9001 |
| American Fab Milling, Laser, Bending, Welding | Spring Lake, MI | MillingLaserBendingWelding | - |
| Aphase II Inc Milling, Turning, Bending, Welding, Stamping, EDM, Grinding | Sterling Heights, MI | MillingTurningBendingWeldingStampingEDMGrinding | - |
| Apogee CNC Inc Milling, Welding, Grinding, Finishing · ITAR | Dexter, MI | MillingWeldingGrindingFinishing | ITAR |
| Ariam Industries LLC Milling, Turning, Welding | Baraga, MI | MillingTurningWelding | - |
| Aristo Industries Laser, Welding · ISO 9001 | Fraser, MI | LaserWelding | ISO 9001 |
| Belding Tool and Machine Milling, Turning, Welding, EDM, Grinding | Belding, MI | MillingTurningWeldingEDMGrinding | - |
| Bermont Gage & Automation Inc Milling, Waterjet, Welding, Grinding · ISO 9001 | Fraser, MI | MillingWaterjetWeldingGrinding | ISO 9001 |