| Iowa Metal Spinners Milling, Turning, Laser, Welding, Stamping · ISO 9001 | Cedar Falls, IA | MillingTurningLaserWeldingStamping | ISO 9001 |
| Park Precision Machining Inc Milling, Turning | Minneapolis, MN | MillingTurning | - |
| Advance Machine Technologies, Inc. Milling, Turning, Bending, Welding, Waterjet · ISO 9001 | Johnston, IA | MillingTurningBendingWeldingWaterjet | ISO 9001 |
| Designed With Sparks LLC Welding | Usk, WA | Welding | - |
| Ben Parker Company Bending, Laser, Welding, Waterjet | Chattanooga, TN | BendingLaserWeldingWaterjet | - |
| Des Moines Iron & Supply Co Bending, Welding | Des Moines, IA | BendingWelding | - |
| Master Tool & Manufacturing Inc Turning, Bending, Welding, EDM, Grinding · ISO 9001, ITAR | Hiawatha, IA | TurningBendingWeldingEDMGrinding | ISO 9001, ITAR |
| Summit Products Inc Milling, Bending, Welding, Finishing | Altoona, IA | MillingBendingWeldingFinishing | - |
| Acro Manufacturing Corporation Milling, Turning, Welding · ISO 9001 | Cedar Rapids, IA | MillingTurningWelding | ISO 9001 |
| Affiliated Energy Products, Inc Milling, Turning, Welding, Stamping, Finishing | Iowa Park, TX | MillingTurningWeldingStampingFinishing | - |
| American Waterjet Cutting LLC Milling, Waterjet, Finishing | Winfield, IA | MillingWaterjetFinishing | - |
| Ameritec Machining, Inc Milling, Turning · ISO 9001 | New Hampton, IA | MillingTurning | ISO 9001 |
| B Machine Milling, Turning, Welding, Stamping, Grinding | Parkersburg, WV | MillingTurningWeldingStampingGrinding | - |
| B&K Machining LLC Milling, Turning, Welding | Centerville, IA | MillingTurningWelding | - |
| Blackhawk Engineering LLC Milling, Turning · ISO 9001, ITAR | Cedar Falls, IA | MillingTurning | ISO 9001, ITAR |
| BT Machine and Fabrication, LLC Welding | Elkhart, IA | Welding | - |
| Cedar Industries, Inc Turning, Bending | Waterloo, IA | TurningBending | - |
| Creative Machining Solutions Welding, Finishing | Walford, IA | WeldingFinishing | - |
| Criterion Manufacturing Turning, Welding | Waterloo, IA | TurningWelding | - |
| DAD Manufacturing, Inc. Bending, Welding · ISO 9001 | Hiawatha, IA | BendingWelding | ISO 9001 |
| Deltisan Engineering LLC Milling, Turning, Punching, Bending, Welding, Finishing, Assembly · ISO 9001 | Parker, CO | MillingTurningPunchingBendingWeldingFinishingAssembly | ISO 9001 |
| Des Moines Metal Fab Bending, Laser, Welding | Des Moines, IA | BendingLaserWelding | - |
| Douglas Machine & Engineering Milling, Turning, Bending, Welding, EDM · ISO 9001, AS9100, ITAR, CMMC | Davenport, IA | MillingTurningBendingWeldingEDM | ISO 9001, AS9100, ITAR, CMMC |
| DW Products Milling, Turning, Bending, Welding, Waterjet · ISO 9001, ITAR | Cedar Rapids, IA | MillingTurningBendingWeldingWaterjet | ISO 9001, ITAR |
| Flint Cliffs Manufacturing Corp Milling, Turning, Laser, Bending, Welding, Stamping, Finishing · ISO 9001 | Burlington, IA | MillingTurningLaserBendingWeldingStampingFinishing | ISO 9001 |
| Grisham Industries Inc. Milling, Turning, Bending, Welding | Davenport, IA | MillingTurningBendingWelding | - |
| Huffman Welding & Machine Inc Milling, Turning, Laser, Waterjet, Bending, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001 | Fort Madison, IA | MillingTurningLaserWaterjetBendingWeldingEDMGrindingFinishingAssembly | ISO 9001 |
| In Tolerance Contract Manufacturing Milling, Turning, Bending · ISO 9001, AS9100, NADCAP | Cedar Rapids, IA | MillingTurningBending | ISO 9001, AS9100, NADCAP |
| KP Manufacturing Milling, Casting, Finishing, Assembly | Spencer, IA | MillingCastingFinishingAssembly | - |
| Lightning Aerospace LLC Milling, Turning, Bending, Assembly · ISO 9001, AS9100, ITAR | Park City, KS | MillingTurningBendingAssembly | ISO 9001, AS9100, ITAR |
| M's Machines Milling, Turning, Welding | Monona, IA | MillingTurningWelding | - |
| Machine Tool Engineering Milling, Turning, Swiss, Laser, Waterjet, Stamping, EDM, Grinding, Finishing · ISO 9001, AS9100, NADCAP | Charles City, IA | MillingTurningSwissLaserWaterjetStampingEDMGrindingFinishing | ISO 9001, AS9100, NADCAP |
| Plas-Tech Tooling Inc Milling, Turning, Welding, Finishing, Assembly | Garner, IA | MillingTurningWeldingFinishingAssembly | - |
| Power Brace LLC Milling, Laser, Bending, Welding, Finishing, Assembly · ISO 9001 | Des Moines, IA | MillingLaserBendingWeldingFinishingAssembly | ISO 9001 |
| Roemer Machine Milling, Welding | Davenport, IA | MillingWelding | - |
| Rosko Manufacturing Milling, Turning, Metal AM | Grimes, IA | MillingTurningMetal AM | - |
| Sadler Machine Co Inc Welding · ISO 9001 | Cedar Rapids, IA | Welding | ISO 9001 |
| Seaberg Industries Turning, Bending, Laser, Welding · ISO 9001 | Davenport, IA | TurningBendingLaserWelding | ISO 9001 |
| Superior Tooling Inc Milling, Turning, Swiss, Bending, Welding, Stamping, EDM, Grinding · ISO 9001 | Wapello, IA | MillingTurningSwissBendingWeldingStampingEDMGrinding | ISO 9001 |
| Tag Team Manufacturing Turning, Welding, Finishing · ISO 9001 | Parker, CO | TurningWeldingFinishing | ISO 9001 |
| Technical Services Incorporated Milling, Turning, Welding · ISO 9001 | Ames, IA | MillingTurningWelding | ISO 9001 |
| Tecton Industries Inc Milling, Turning, Casting, Grinding · ISO 9001, AS9100 | Spencer, IA | MillingTurningCastingGrinding | ISO 9001, AS9100 |
| Tri-State Sheet Metal, Inc Bending, Welding | Keokuk, IA | BendingWelding | - |
| True Position Manufacturing Inc Turning, Welding · ISO 9001 | Davenport, IA | TurningWelding | ISO 9001 |
| Valley Machining Co Milling, Turning, Welding, Grinding · ISO 9001, ITAR | Rock Valley, IA | MillingTurningWeldingGrinding | ISO 9001, ITAR |
| Abacorp CNC Machined Parts Milling, Turning, Laser, Welding · AS9100 | Moorpark, CA | MillingTurningLaserWelding | AS9100 |
| BS Designs Inc Milling, Turning, Welding | Santee, CA | MillingTurningWelding | - |
| Deperini Metal Fabricators Milling, Laser, Punching, Bending, Welding, Grinding, Finishing · ISO 9001 | Gaithersburg, MD | MillingLaserPunchingBendingWeldingGrindingFinishing | ISO 9001 |
| Evert Hancock Inc Milling, Laser, Waterjet, Punching, Bending, Welding · ISO 9001, AS9100, NADCAP | Anaheim, CA | MillingLaserWaterjetPunchingBendingWelding | ISO 9001, AS9100, NADCAP |
| Korzan Enterprises Inc Milling, Turning, Waterjet, Welding, EDM, Grinding, Finishing | Orchard Park, NY | MillingTurningWaterjetWeldingEDMGrindingFinishing | - |