| Hirsh Precision Products, Inc Milling, Turning, Assembly · AS9100, ITAR, ISO 13485 | Frederick, CO | MillingTurningAssembly | AS9100, ITAR, ISO 13485 |
| Precision Machined Products, LLC Milling, Turning, EDM, Grinding, Assembly · ISO 9001 | Fort Collins, CO | MillingTurningEDMGrindingAssembly | ISO 9001 |
| Superior Metal Products Inc Milling, Turning, Grinding · ISO 9001 | Louviers, CO | MillingTurningGrinding | ISO 9001 |
| 3 J Inc Milling · AS9100 | Wellington, CO | Milling | AS9100 |
| Colorado Machine Works, Inc. Milling, Turning | Colorado Springs, CO | MillingTurning | - |
| Deltisan Engineering LLC Milling, Turning, Punching, Bending, Welding, Finishing, Assembly · ISO 9001 | Parker, CO | MillingTurningPunchingBendingWeldingFinishingAssembly | ISO 9001 |
| Denver Machine Shop Milling, Turning, Welding · ISO 9001 | Henderson, CO | MillingTurningWelding | ISO 9001 |
| Eccentroid LLC Milling, Welding, Stamping | Loveland, CO | MillingWeldingStamping | - |
| Faustson Tool Milling, Turning, EDM | Arvada, CO | MillingTurningEDM | - |
| Final Frontier Manufacturing Milling, Turning, Finishing · AS9100 | Arvada, CO | MillingTurningFinishing | AS9100 |
| Hexagon Machine & Manufacturing LLC Milling, Assembly · ISO 9001, AS9100 | Longmont, CO | MillingAssembly | ISO 9001, AS9100 |
| I.p. Automation, Inc Milling, Turning, Laser, Waterjet, Bending, Welding, Grinding · ISO 9001 | Colorado Springs, CO | MillingTurningLaserWaterjetBendingWeldingGrinding | ISO 9001 |
| Majestic Metals by Fathom Manufacturing Milling, Turning, Bending, Laser, Welding, Waterjet, EDM, Casting, Metal AM · ISO 9001, AS9100, ITAR, ISO 13485 | Denver, CO | MillingTurningBendingLaserWeldingWaterjetEDMCastingMetal AM | ISO 9001, AS9100, ITAR, ISO 13485 |
| McCallin Steel Storage Systems, Inc Milling, Punching, Welding, Finishing | Commerce City, CO | MillingPunchingWeldingFinishing | - |
| Metalmasters Milling, Turning, Bending, Welding, Finishing | Brighton, CO | MillingTurningBendingWeldingFinishing | - |
| Metro Machine Inc Milling, Turning, Grinding · ISO 9001, AS9100, ITAR | Englewood, CO | MillingTurningGrinding | ISO 9001, AS9100, ITAR |
| Micro Metals Inc Milling, Laser, Waterjet, Punching, Bending, Welding | Colorado Springs, CO | MillingLaserWaterjetPunchingBendingWelding | - |
| Monson Manufacturing Milling · ISO 9001, AS9100, ITAR | Colorado Springs, CO | Milling | ISO 9001, AS9100, ITAR |
| Mountain CNC Milling, Turning, Waterjet, Welding, Grinding, Finishing, Assembly · ITAR, CMMC | Loveland, CO | MillingTurningWaterjetWeldingGrindingFinishingAssembly | ITAR, CMMC |
| N.G. Machining, LLC Milling, Grinding | Colorado Springs, CO | MillingGrinding | - |
| Oakes Manufacturing LLC Milling, Turning, Assembly · ISO 9001 | Fort Collins, CO | MillingTurningAssembly | ISO 9001 |
| Praesidm Milling, Turning · ISO 9001, AS9100 | Evergreen, CO | MillingTurning | ISO 9001, AS9100 |
| Precise Cast Prototypes & Engineering Inc Milling, Casting | Commerce City, CO | MillingCasting | - |
| Preece Machining & Assembly, LLC Milling, Turning, Finishing, Assembly · ISO 9001, AS9100, ITAR | Longmont, CO | MillingTurningFinishingAssembly | ISO 9001, AS9100, ITAR |
| Prototype Casting Inc Milling, Turning, Welding, Casting | Commerce City, CO | MillingTurningWeldingCasting | - |
| R B Machine Inc Milling, Turning, Assembly · ISO 9001, AS9100 | Denver, CO | MillingTurningAssembly | ISO 9001, AS9100 |
| Steen Machining, Inc Milling, Turning, Finishing | Westminster, CO | MillingTurningFinishing | - |
| Synergy Core Manufacturing Milling | Denver, CO | Milling | - |
| Topocut, LLC Milling, Laser, Bending, Finishing | Berthoud, CO | MillingLaserBendingFinishing | - |
| Xymat Milling, Turning, Bending, Laser, Welding, Waterjet, EDM, Metal AM · ISO 9001, AS9100 | Colorado Springs, CO | MillingTurningBendingLaserWeldingWaterjetEDMMetal AM | ISO 9001, AS9100 |