| Centerline Machine, LLC Milling, Turning, Waterjet, Bending, Welding, Finishing, Assembly · ISO 9001, ITAR | Waupaca, WI | MillingTurningWaterjetBendingWeldingFinishingAssembly | ISO 9001, ITAR |
| R. J. Zeman Tool & Mfg. Co., Inc Milling, Turning, Welding, Casting, EDM, Grinding · ISO 9001, ITAR | Waukesha, WI | MillingTurningWeldingCastingEDMGrinding | ISO 9001, ITAR |
| Rapid Manufacturing Company, LLC Welding, Metal AM, EDM · ISO 9001, ITAR | Eau Claire, WI | WeldingMetal AMEDM | ISO 9001, ITAR |
| True Accuracy LLC Stamping · ISO 9001 | West Bend, WI | Stamping | ISO 9001 |
| 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 |
| Xact Wire EDM Corp Milling, Stamping, EDM · ISO 9001 | Waukesha, WI | MillingStampingEDM | ISO 9001 |
| Alpine Conglomerate, LLC Milling, Welding · ISO 9001, AS9100, ITAR, NADCAP, CMMC | Bloomer, WI | MillingWelding | ISO 9001, AS9100, ITAR, NADCAP, CMMC |
| Bridan Mfg Inc Milling, Turning, EDM · ISO 9001 | Kenosha, WI | MillingTurningEDM | ISO 9001 |
| KF Precision Honing LLC Milling, Grinding · ITAR | Antigo, WI | MillingGrinding | ITAR |
| Trade Tech Inc Milling, Turning, Waterjet, Welding · ISO 9001, ITAR, CMMC | Hartford, WI | MillingTurningWaterjetWelding | ISO 9001, ITAR, CMMC |
| 5 Point Fabrication Milling, Bending, Laser, Welding | Green Bay, WI | MillingBendingLaserWelding | - |
| Ace Manufacturing Inc Milling, Turning · ISO 9001 | Green Bay, WI | MillingTurning | ISO 9001 |
| C & C Machine Inc Milling, Turning, Bending, Welding | La Crosse, WI | MillingTurningBendingWelding | - |
| E & M Machine, Inc Milling, Turning, Welding, EDM, Finishing | Grantsburg, WI | MillingTurningWeldingEDMFinishing | - |
| Impact Machine LLC Milling, Turning · ISO 9001 | Kaukauna, WI | MillingTurning | ISO 9001 |
| Infinity EDM, LLC Milling, Turning, EDM, Grinding · ISO 9001 | Jackson, WI | MillingTurningEDMGrinding | ISO 9001 |
| J&J Machine Milling, EDM | Appleton, WI | MillingEDM | - |
| JBC Machine Inc Milling, Turning, Welding, Finishing | Hortonville, WI | MillingTurningWeldingFinishing | - |
| Metaltek International Corp Milling, Welding, Casting, Metal AM · NADCAP | Waukesha, WI | MillingWeldingCastingMetal AM | NADCAP |
| Milwaukee Bearing and Machining, Inc Milling, Turning · ISO 9001 | Menomonee Falls, WI | MillingTurning | ISO 9001 |
| Pmi LLC Laser, Punching, Bending, Welding, Stamping, Assembly | Bloomer, WI | LaserPunchingBendingWeldingStampingAssembly | - |
| Quality Machining Inc Milling, Turning, Welding, Stamping, EDM, Grinding, Finishing | Waunakee, WI | MillingTurningWeldingStampingEDMGrindingFinishing | - |
| Triple E Machine Inc Turning, Laser, Welding, Waterjet, EDM | Appleton, WI | TurningLaserWeldingWaterjetEDM | - |
| Baum Machine Inc Milling, Turning, Welding | Appleton, WI | MillingTurningWelding | - |
| Draeving Machine Tool, Inc Milling, Turning, Welding, EDM | Beloit, WI | MillingTurningWeldingEDM | - |
| Fox Valley Metal Fab, Inc. Milling, Bending, Welding | Appleton, WI | MillingBendingWelding | - |
| Fox Valley Tool & Die Inc Milling, Turning, Waterjet, Stamping, EDM, Grinding | Kaukauna, WI | MillingTurningWaterjetStampingEDMGrinding | - |
| H & M Machine Inc Milling, Turning, Welding, Stamping, EDM, Grinding, Finishing | Greendale, WI | MillingTurningWeldingStampingEDMGrindingFinishing | - |
| Imr Inc Turning | Prentice, WI | Turning | - |
| Mac-Tech Turning, Bending, Laser, Welding | Milwaukee, WI | TurningBendingLaserWelding | - |
| Marinette Machine LLC Turning, Welding, Grinding, Finishing | Marinette, WI | TurningWeldingGrindingFinishing | - |
| Mat-Tech Machining Milling, Turning, Welding | Milwaukee, WI | MillingTurningWelding | - |
| PDJ Cutting and Fabricating LLC Bending, Welding | Manitowoc, WI | BendingWelding | - |
| Titletown Manufacturing LLC Milling, Welding | Green Bay, WI | MillingWelding | - |
| W.e. Hoban Company Milling, Bending, Forging | Green Bay, WI | MillingBendingForging | - |
| Evergreen Tool Company Inc Milling, Turning, Swiss | Peshtigo, WI | MillingTurningSwiss | - |
| Moria Manufacturing LLC Milling, Turning, Finishing | Monona, WI | MillingTurningFinishing | - |
| MRC Machine Inc Milling, Turning, Welding | Pound, WI | MillingTurningWelding | - |
| Northern Gear, LLC Casting, Finishing | Muskego, WI | CastingFinishing | - |
| Wilmac LLC Milling | Franklin, WI | Milling | - |
| Creative CNC LLC Milling | New Berlin, WI | Milling | - |
| Toolrite Mfg Co., Inc Turning, Grinding | New Berlin, WI | TurningGrinding | - |