| CJ Precision Machine Inc Milling, Turning, Welding, Finishing · ISO 9001 | Boise, ID | MillingTurningWeldingFinishing | ISO 9001 |
| Cutting Edge Manufacturing Milling, Bending, Welding · ISO 9001, AS9100 | Caldwell, ID | MillingBendingWelding | ISO 9001, AS9100 |
| EnviroTech Milling, Turning, Laser, Welding, EDM | Boise, ID | MillingTurningLaserWeldingEDM | - |
| Weld Pro Bending, Welding, Waterjet | Boise, ID | BendingWeldingWaterjet | - |
| Boise Metal Works Welding, Waterjet | Boise, ID | WeldingWaterjet | - |
| Lasasco Inc Punching, Bending, Welding | Boise, ID | PunchingBendingWelding | - |
| Metalcraft Inc Bending, Laser, Welding | Boise, ID | BendingLaserWelding | - |
| Northwest Machining & Manufacturing Inc Milling, Turning, Welding, EDM · ISO 9001 | Meridian, ID | MillingTurningWeldingEDM | ISO 9001 |
| NW4S Inc Milling, Punching, Bending, Welding, Stamping, EDM, Finishing · ISO 9001, AS9100 | Lewiston, ID | MillingPunchingBendingWeldingStampingEDMFinishing | ISO 9001, AS9100 |
| Steelhead Metal Corp Milling, Turning, Laser, Waterjet, Bending, EDM, Finishing · ISO 9001 | Nampa, ID | MillingTurningLaserWaterjetBendingEDMFinishing | ISO 9001 |
| Teton Machine Co Milling, Turning · ISO 9001, AS9100, ITAR | Payette, ID | MillingTurning | ISO 9001, AS9100, ITAR |
| Westside Machine, LLC Milling, Turning, Grinding | Preston, ID | MillingTurningGrinding | - |
| Woodland Manufacturing Welding | Meridian, ID | Welding | - |
| Woody's Sheet Metal Bending, Welding | Boise, ID | BendingWelding | - |