| Belfanti Machine Works LLC Milling, Turning, Waterjet, Welding, Stamping | Beaverton, OR | MillingTurningWaterjetWeldingStamping | - |
| Dexter Design & Development Co Milling, Turning, EDM, Grinding, Assembly · ISO 9001 | Hillsboro, OR | MillingTurningEDMGrindingAssembly | ISO 9001 |
| Sequoia Machine Works LLC Milling, Turning, Laser, Punching, Welding, Finishing | Sandy, OR | MillingTurningLaserPunchingWeldingFinishing | - |
| Mueller Machining LLC Milling, Turning, Laser, Bending, Grinding, Finishing | Salem, OR | MillingTurningLaserBendingGrindingFinishing | - |
| Strom Manufacturing, LLC Milling, Turning, Finishing, Assembly · ISO 9001 | North Plains, OR | MillingTurningFinishingAssembly | ISO 9001 |
| Treske Precision Machining Inc Milling, Assembly | Sherwood, OR | MillingAssembly | - |
| ISCO Manufacturing Solutions Milling, Turning, Waterjet, Bending, Welding, Grinding · ISO 9001, AS9100 | Bend, OR | MillingTurningWaterjetBendingWeldingGrinding | ISO 9001, AS9100 |
| SPM Milling, Turning, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001 | Portland, OR | MillingTurningWeldingEDMGrindingFinishingAssembly | ISO 9001 |
| Cascade Precision Inc Milling, Turning, Finishing · ISO 9001, AS9100, ITAR | Boring, OR | MillingTurningFinishing | ISO 9001, AS9100, ITAR |
| Davis Tool Inc Milling, Turning, Laser, Waterjet, Punching, Bending, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, AS9100, ITAR, NADCAP | Hillsboro, OR | MillingTurningLaserWaterjetPunchingBendingWeldingEDMGrindingFinishingAssembly | ISO 9001, AS9100, ITAR, NADCAP |
| Fox Worx Precision LLC Milling, Finishing · ISO 9001, ITAR | Ontario, OR | MillingFinishing | ISO 9001, ITAR |
| Western Precision Products Inc Milling, Turning, Swiss · AS9100 | Tualatin, OR | MillingTurningSwiss | AS9100 |
| Impulse Precision Manufacturing Milling, Stamping, Finishing · ISO 9001, ITAR, NADCAP | Wilsonville, OR | MillingStampingFinishing | ISO 9001, ITAR, NADCAP |
| Nix Manufacturing, Inc Milling, Turning, Swiss · AS9100, ITAR | Sutherlin, OR | MillingTurningSwiss | AS9100, ITAR |
| Allied Technologies Milling, Turning, Swiss · ITAR, ISO 13485 | Wilsonville, OR | MillingTurningSwiss | ITAR, ISO 13485 |
| Evans Metal Fabricators Inc Milling, Turning, Bending, Laser, Welding | Portland, OR | MillingTurningBendingLaserWelding | - |
| Grovtec US Inc Milling, Turning, Swiss, Finishing · ISO 9001, AS9100, ITAR | Wood Village, OR | MillingTurningSwissFinishing | ISO 9001, AS9100, ITAR |
| Lean Industrial LLC Milling, Casting, Grinding · ISO 9001 | Eugene, OR | MillingCastingGrinding | ISO 9001 |
| Machine Sciences Corp Milling · AS9100, ITAR | Tualatin, OR | Milling | AS9100, ITAR |
| American Precision Industries, Inc Milling, Turning, Laser, Bending, Welding, Finishing | Hillsboro, OR | MillingTurningLaserBendingWeldingFinishing | - |
| JC Custom Machining & Design Inc Milling, Turning, Welding, Grinding | Hillsboro, OR | MillingTurningWeldingGrinding | - |
| Portland Precision Manufacturing Milling, Turning · ISO 9001, AS9100, ITAR | Portland, OR | MillingTurning | ISO 9001, AS9100, ITAR |
| Usher Precision Manufacturing Milling, Turning, Laser, Welding, Assembly | Forest Grove, OR | MillingTurningLaserWeldingAssembly | - |
| Arrowtech Machine Works Milling, Turning, Grinding | Eugene, OR | MillingTurningGrinding | - |
| Ascentec Engineering LLC Milling, Turning, Waterjet, EDM, Grinding | Tualatin, OR | MillingTurningWaterjetEDMGrinding | - |
| Fulcrum Technologies Inc Milling, Laser, Waterjet, Bending, Welding, Finishing | Tualatin, OR | MillingLaserWaterjetBendingWeldingFinishing | - |
| Hy-Speed Machining, Inc Milling, Turning, EDM | Grants Pass, OR | MillingTurningEDM | - |
| Modern Machine Works Milling, Turning, Welding, EDM, Grinding, Finishing | Albany, OR | MillingTurningWeldingEDMGrindingFinishing | - |
| Modulus Machine, LLC Milling | Lebanon, OR | Milling | - |
| Western Machine Works, LLC Milling, Welding | Portland, OR | MillingWelding | - |
| A.r.e. Manufacturing, Inc Milling, Turning, Swiss, Laser, Bending, Welding, EDM, Grinding, Finishing · ISO 9001 | Newberg, OR | MillingTurningSwissLaserBendingWeldingEDMGrindingFinishing | ISO 9001 |
| Arnprior Aerospace Portland, Inc Milling · ITAR, NADCAP | Portland, OR | Milling | ITAR, NADCAP |
| DK Machining LLC Milling, Turning, Welding, Assembly · ISO 9001, ITAR | Molalla, OR | MillingTurningWeldingAssembly | ISO 9001, ITAR |
| Machine Craft Northwest Inc Milling, Turning, Welding | Lebanon, OR | MillingTurningWelding | - |
| Oregon Screw Machine Products Milling, Turning | Portland, OR | MillingTurning | - |
| CV International, Inc Milling, Turning, Laser, Punching, Bending, Welding · ISO 9001 | Bend, OR | MillingTurningLaserPunchingBendingWelding | ISO 9001 |
| Denezol Tool Co Inc Milling, Turning | Salem, OR | MillingTurning | - |
| Hilton Tool Milling, Turning, Welding, EDM, Grinding · ISO 9001, AS9100 | Clackamas, OR | MillingTurningWeldingEDMGrinding | ISO 9001, AS9100 |
| Machinable Innovations LLC Milling, Turning | Bend, OR | MillingTurning | - |
| Precision Equipment Inc Milling, Turning, Grinding, Finishing | Portland, OR | MillingTurningGrindingFinishing | - |
| Top Notch Machining, Inc Milling, Waterjet, Stamping, Finishing, Assembly · ISO 9001 | Gresham, OR | MillingWaterjetStampingFinishingAssembly | ISO 9001 |
| Outback Manufacturing Milling, Turning, Swiss · AS9100, ITAR | Bend, OR | MillingTurningSwiss | AS9100, ITAR |
| Prime Manufacturing LLC Milling, Turning, Swiss · ISO 9001, ITAR | Wilsonville, OR | MillingTurningSwiss | ISO 9001, ITAR |
| Interactive Manufacturing, Inc Milling, Turning, Waterjet, Welding, Finishing, Assembly | Central Point, OR | MillingTurningWaterjetWeldingFinishingAssembly | - |
| Product Manufacturing Milling, Turning, Welding, Casting | Canby, OR | MillingTurningWeldingCasting | - |
| Madden Fabrication Milling, Welding | Portland, OR | MillingWelding | - |
| R & R Manufacturing Milling, Turning, Welding, Waterjet | Hillsboro, OR | MillingTurningWeldingWaterjet | - |
| American Machine & Gear Inc Milling, Turning, Welding, EDM | Portland, OR | MillingTurningWeldingEDM | - |
| High Altitude Manufacturing Global Inc Milling, Turning, Swiss, Laser, Finishing | Molalla, OR | MillingTurningSwissLaserFinishing | - |
| Highline Tool Inc Milling, Turning, Swiss, Grinding | Hillsboro, OR | MillingTurningSwissGrinding | - |