| Barnes Welding Inc Turning, Bending, Welding | Waterville, WA | TurningBendingWelding | - |
| Washington Machine Works Milling, Turning, Bending, Welding · ISO 9001 | Seattle, WA | MillingTurningBendingWelding | ISO 9001 |
| Western Fabrication Center LLC Turning, Bending, Welding, Grinding · ISO 9001 | Kelso, WA | TurningBendingWeldingGrinding | ISO 9001 |
| Wheeler Industries Inc Milling, Turning, Bending, Welding | Spokane Valley, WA | MillingTurningBendingWelding | - |
| Abw Technologies, Inc Milling, Welding · ISO 9001, AS9100 | Arlington, WA | MillingWelding | ISO 9001, AS9100 |
| Argo Blower & Mfg Co Inc 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 | - |
| Designed With Sparks LLC Welding | Usk, WA | Welding | - |
| Drews Fabrication and Welding LLC Welding | Longview, WA | Welding | - |
| Hallnus Works Milling, Finishing · ISO 9001, ITAR | Battle Ground, WA | MillingFinishing | ISO 9001, ITAR |
| Hydrafab Northwest, Inc Laser, Bending, Welding | Spokane Valley, WA | LaserBendingWelding | - |
| J Newell Corp Milling, Welding | Arlington, WA | MillingWelding | - |
| Newport Mfg Laser, Welding | Newcastle, WA | LaserWelding | - |
| Northway Mathers Inc Milling, Turning, Waterjet, Bending, Welding, Finishing | Mukilteo, WA | MillingTurningWaterjetBendingWeldingFinishing | - |
| Northwest Steel Fab, Inc Milling, Punching, Bending, Welding | Deer Park, WA | MillingPunchingBendingWelding | - |
| Prowse Manufacturing Group Inc Milling, Turning, Waterjet, Bending, Assembly · ISO 9001, ITAR, CMMC | Marysville, WA | MillingTurningWaterjetBendingAssembly | ISO 9001, ITAR, CMMC |
| R.W. FAB. Jarvis Ent Inc Bending, Welding | Spokane, WA | BendingWelding | - |
| Rainier Metal Works Bending, Welding | Seattle, WA | BendingWelding | - |
| Still Waters Metal Fab LLC Bending, Welding | Spokane Valley, WA | BendingWelding | - |
| USWP Manufacturing Bending, Stamping, Finishing · AS9100, NADCAP | Spokane Valley, WA | BendingStampingFinishing | AS9100, NADCAP |
| Zigler's Welding Shop, Inc Welding | Tumwater, WA | Welding | - |
| Aether Flow Technologies LLC Milling | Everett, WA | Milling | - |
| Blue Waters Engineering LLC Milling · ISO 9001, AS9100, ITAR | Vancouver, WA | Milling | ISO 9001, AS9100, ITAR |
| Diamond Machine Works, Inc. Milling, Turning · ISO 9001, AS9100 | Seattle, WA | MillingTurning | ISO 9001, AS9100 |
| GMS Metal Works Inc Milling, Turning · NADCAP | Auburn, WA | MillingTurning | NADCAP |
| KLW Manufacturing & Design, Inc Milling, Assembly | Arlington, WA | MillingAssembly | - |
| Lakehouse Industries Milling, Turning, Finishing | Woodland, WA | MillingTurningFinishing | - |
| Pacific Northwest Metal Fabricators Turning, Welding, Waterjet | Seattle, WA | TurningWeldingWaterjet | - |
| Swiss Productions, Inc Milling, Turning, Assembly · ISO 9001 | Liberty Lake, WA | MillingTurningAssembly | ISO 9001 |
| Alaskan Copper Works Bending, Welding, Waterjet | Seattle, WA | BendingWeldingWaterjet | - |
| JJR Engineering & Fabrication Inc Milling, Turning, Bending, Welding, Stamping, Finishing, Assembly · ISO 9001, AS9100, NADCAP | Woodinville, WA | MillingTurningBendingWeldingStampingFinishingAssembly | ISO 9001, AS9100, NADCAP |
| Spokane Tin & Sheet Iron Works, Inc. Bending, Welding | Spokane, WA | BendingWelding | - |
| Ballard Sheet Metal Works Inc. Bending, Welding | Seattle, WA | BendingWelding | - |
| Carlson Sheet Metal Works Bending, Welding, Waterjet | Spokane, WA | BendingWeldingWaterjet | - |
| Mico Welding & Machining, Inc Milling, Turning, Welding, Finishing | Nine Mile Falls, WA | MillingTurningWeldingFinishing | - |
| Harbor Island Machine Works, Inc Milling, Grinding | Seattle, WA | MillingGrinding | - |
| Metaltech Inc Laser, Bending, Welding, Assembly · AS9100 | Auburn, WA | LaserBendingWeldingAssembly | AS9100 |
| Component Products Corp Milling, Turning, Waterjet, Punching, Bending, Stamping, Assembly · AS9100, ITAR, CMMC | Mukilteo, WA | MillingTurningWaterjetPunchingBendingStampingAssembly | AS9100, ITAR, CMMC |
| Machine Tool Services Turning, Bending, EDM | Spokane, WA | TurningBendingEDM | - |
| 3DX Industries Inc Milling, Turning, Swiss, Metal AM, Finishing, Assembly | Ferndale, WA | MillingTurningSwissMetal AMFinishingAssembly | - |
| A-1 Precision, Inc Milling, Turning, Swiss, Grinding · ISO 9001 | Vancouver, WA | MillingTurningSwissGrinding | ISO 9001 |
| A&j Custom Metals LLC Milling, Turning, Bending, Welding, Grinding | Graham, WA | MillingTurningBendingWeldingGrinding | - |
| American CNC Fabricating, Inc. Milling, Bending, Laser, Welding, Metal AM | Spokane Valley, WA | MillingBendingLaserWeldingMetal AM | - |
| Argent Fabrication LLC Bending, Welding | Seattle, WA | BendingWelding | - |
| Asko Processing Inc Turning, Grinding, Finishing | Seattle, WA | TurningGrindingFinishing | - |
| Atomic Fabrications LLC. Welding | Seattle, WA | Welding | - |
| Ballard Marine Fabricators Welding | Seattle, WA | Welding | - |
| Capital Industries Inc Laser, Punching, Bending, Welding, Finishing · ISO 9001 | Seattle, WA | LaserPunchingBendingWeldingFinishing | ISO 9001 |
| Cobalt Enterprises LLC Milling, Finishing · ITAR | Arlington, WA | MillingFinishing | ITAR |