| TMF Inc Milling, Turning, Welding, Finishing, Assembly · ISO 9001, AS9100, ITAR, NADCAP | Poulsbo, WA | MillingTurningWeldingFinishingAssembly | ISO 9001, AS9100, ITAR, NADCAP |
| Edco Inc Welding · ITAR | Mount Vernon, WA | Welding | ITAR |
| Hardy Engineering & Manufacturing, Inc Milling, Turning, Welding, EDM · AS9100 | Auburn, WA | MillingTurningWeldingEDM | AS9100 |
| Novo Modo Machining Milling · ISO 9001, AS9100, ITAR, CMMC | Mount Vernon, WA | Milling | ISO 9001, AS9100, ITAR, CMMC |
| Xtreme Machining, Inc Milling, Turning · ISO 9001, AS9100 | Auburn, WA | MillingTurning | ISO 9001, AS9100 |
| Cyclefab, LLC Milling, Turning, Welding | Renton, WA | MillingTurningWelding | - |
| Honeycutt Manufacturing Inc Milling, Turning, Swiss, Stamping, Grinding, Finishing | Mukilteo, WA | MillingTurningSwissStampingGrindingFinishing | - |
| Newport Mfg Laser, Welding | Newcastle, WA | LaserWelding | - |
| Yakima Machine Milling, Turning, Finishing | Yakima, WA | MillingTurningFinishing | - |
| Everett Engineering Inc Milling, Turning, Welding | Everett, WA | MillingTurningWelding | - |
| Finney Creek Co LLC Welding | Concrete, WA | Welding | - |
| GN Manufacturing LLC Milling, Turning, Swiss | Granite Falls, WA | MillingTurningSwiss | - |
| Mac Origin Inc Milling | Bingen, WA | Milling | - |
| Medical Micro Machining Inc Milling | Colfax, WA | Milling | - |
| Nu-Tech Machining Inc Milling, Turning · ITAR | Vancouver, WA | MillingTurning | ITAR |
| Bent River Tech Milling, Turning, EDM, Grinding | Vancouver, WA | MillingTurningEDMGrinding | - |