| Takfab Precision Gunsmithing LLC Milling, Welding | Oak Harbor, WA | MillingWelding | - |
| American CNC Fabricating, Inc. Milling, Bending, Laser, Welding, Metal AM | Spokane Valley, WA | MillingBendingLaserWeldingMetal AM | - |
| Argent Fabrication LLC Bending, Welding | Seattle, WA | BendingWelding | - |
| Blackwater Industries Professional Limited Liability Company Welding | Toledo, WA | Welding | - |
| Bluewater Industries Inc Milling, Turning, Welding, Casting, Finishing | Moses Lake, WA | MillingTurningWeldingCastingFinishing | - |
| Future Present Labs Milling, Turning, Laser, Welding, Waterjet, Metal AM | Seattle, WA | MillingTurningLaserWeldingWaterjetMetal AM | - |
| HK Manufacturing Services LLC Milling | Everett, WA | Milling | - |
| Holz Enterprises, Inc Milling, Turning, Finishing · AS9100, ITAR | Bellingham, WA | MillingTurningFinishing | AS9100, ITAR |
| Machine Tool Services Turning, Bending, EDM | Spokane, WA | TurningBendingEDM | - |
| Medical Micro Machining Inc Milling | Colfax, WA | Milling | - |
| Metaltech Inc Laser, Bending, Welding, Assembly · AS9100 | Auburn, WA | LaserBendingWeldingAssembly | AS9100 |
| Minter Industries LLC Milling · ISO 9001 | Lakewood, WA | Milling | ISO 9001 |
| Nu-Tech Machining Inc Milling, Turning · ITAR | Vancouver, WA | MillingTurning | ITAR |
| Sicom Industries USA LLC Milling, Turning, Waterjet · ISO 9001, AS9100, CMMC | Stanwood, WA | MillingTurningWaterjet | ISO 9001, AS9100, CMMC |
| Swiss Productions, Inc Milling, Turning, Assembly · ISO 9001 | Liberty Lake, WA | MillingTurningAssembly | ISO 9001 |
| Techcraft Precision Milling, Finishing · AS9100, ITAR, CMMC | Bellingham, WA | MillingFinishing | AS9100, ITAR, CMMC |