| Metaltek International Corp Milling, Welding, Casting, Metal AM · NADCAP | Waukesha, WI | MillingWeldingCastingMetal AM | NADCAP |
| Moria Manufacturing LLC Milling, Turning, Finishing | Monona, WI | MillingTurningFinishing | - |
| MRC Machine Inc Milling, Turning, Welding | Pound, WI | MillingTurningWelding | - |
| Nelson Numeric, LLC Milling | Waterloo, WI | Milling | - |
| PDJ Cutting and Fabricating LLC Bending, Welding | Manitowoc, WI | BendingWelding | - |
| Perma-Brass, Inc Milling, Turning, Swiss, Finishing · ISO 9001, AS9100 | Plymouth, WI | MillingTurningSwissFinishing | ISO 9001, AS9100 |
| Pindel Global Precision, Inc Milling, Turning, Swiss, Stamping, Casting · ISO 9001, ITAR | New Berlin, WI | MillingTurningSwissStampingCasting | ISO 9001, ITAR |
| Pmi LLC Laser, Punching, Bending, Welding, Stamping, Assembly | Bloomer, WI | LaserPunchingBendingWeldingStampingAssembly | - |
| Pointe Precision Inc Milling, Turning, EDM, Grinding · ISO 9001, AS9100, NADCAP | Plover, WI | MillingTurningEDMGrinding | ISO 9001, AS9100, NADCAP |
| Prototek Digital ManufacturingVerified Milling, Turning, Laser, Waterjet, Bending, Welding, EDM, Finishing, Assembly · ISO 9001, AS9100, ITAR, NADCAP, CMMC | Menomonie, WI | MillingTurningLaserWaterjetBendingWeldingEDMFinishingAssembly | ISO 9001, AS9100, ITAR, NADCAP, CMMC |
| Quality Machining Inc Milling, Turning, Welding, Stamping, EDM, Grinding, Finishing | Waunakee, WI | MillingTurningWeldingStampingEDMGrindingFinishing | - |
| Quality Welding Service Inc Laser, Welding | Suamico, WI | LaserWelding | - |
| Ram Tool Inc Milling, Turning, Welding, Casting, EDM, Grinding · ISO 9001, ITAR | Grafton, WI | MillingTurningWeldingCastingEDMGrinding | ISO 9001, ITAR |
| Rapid Manufacturing Company, LLC Welding, Metal AM, EDM · ISO 9001, ITAR | Eau Claire, WI | WeldingMetal AMEDM | ISO 9001, ITAR |
| Riverside Machine and Engineering, Inc Milling · ISO 9001, AS9100, ISO 13485 | Eau Claire, WI | Milling | ISO 9001, AS9100, ISO 13485 |
| Savannah Company, LLC Milling | Waunakee, WI | Milling | - |
| Spuncast Inc Casting · ISO 9001 | Watertown, WI | Casting | ISO 9001 |
| Sulzer Machine & Manufacturing Inc Milling, Welding, Grinding · ISO 9001 | Mosinee, WI | MillingWeldingGrinding | ISO 9001 |
| TBC Metalworks Bending, Laser, Welding | Green Bay, WI | BendingLaserWelding | - |
| TMS Inc Milling, Laser, Punching, Bending, Welding, Grinding, Finishing, Assembly | New Berlin, WI | MillingLaserPunchingBendingWeldingGrindingFinishingAssembly | - |
| Toolcraft Precision Machining, LLC Milling, Turning · ISO 9001, ITAR, CMMC | Germantown, WI | MillingTurning | ISO 9001, ITAR, CMMC |
| Ultra Tool and Mfg., Inc Milling, Turning, Laser, Bending, Welding, Stamping, EDM, Finishing · ISO 9001, ITAR | Germantown, WI | MillingTurningLaserBendingWeldingStampingEDMFinishing | ISO 9001, ITAR |
| Unit Drop Forge Co Inc Milling, Welding, Forging, Finishing | Milwaukee, WI | MillingWeldingForgingFinishing | - |
| Vargo Tool & Die Inc Milling, Turning, Welding, Grinding · ISO 9001, AS9100 | Marinette, WI | MillingTurningWeldingGrinding | ISO 9001, AS9100 |
| Velocity Machine, Inc Milling, Turning, Welding, Assembly · ISO 9001, ITAR, IATF 16949 | De Pere, WI | MillingTurningWeldingAssembly | ISO 9001, ITAR, IATF 16949 |
| Vti Vacuum Technologies, Inc Finishing · ISO 9001, ITAR | Reedsburg, WI | Finishing | ISO 9001, ITAR |
| W.e. Hoban Company Milling, Bending, Forging | Green Bay, WI | MillingBendingForging | - |
| Wilmac LLC Milling | Franklin, WI | Milling | - |
| Wisconsin Metal Fab LLC Milling, Laser, Punching, Bending, Welding | Chippewa Falls, WI | MillingLaserPunchingBendingWelding | - |
| Wisconsin Plating Works of Racine, Inc Finishing, Assembly · ISO 9001 | Racine, WI | FinishingAssembly | ISO 9001 |