| Precision Machining & Fab Milling, Turning, Bending, Laser, Welding, Waterjet · ISO 9001, AS9100, ITAR | Anaheim, CA | MillingTurningBendingLaserWeldingWaterjet | ISO 9001, AS9100, ITAR |
| Princeton Tool Inc Milling, Waterjet, Casting, EDM, Grinding, Assembly · AS9100, NADCAP | Mentor, OH | MillingWaterjetCastingEDMGrindingAssembly | AS9100, NADCAP |
| Professional Machining Inc Milling, Turning | Oklahoma City, OK | MillingTurning | - |
| Proto Xyz, Inc Milling, Turning, Laser, Waterjet, Grinding, Finishing · ISO 9001, ITAR | New Bedford, MA | MillingTurningLaserWaterjetGrindingFinishing | ISO 9001, ITAR |
| Qualified Machine Shop Milling, Turning | San Diego, CA | MillingTurning | - |
| Quick Turn Precision Machining Milling, Turning, Welding · ISO 9001 | Ogden, UT | MillingTurningWelding | ISO 9001 |
| R&D Machine LLC Milling, Assembly | Murrieta, CA | MillingAssembly | - |
| RC Industries Milling · ISO 9001, AS9100 | Anaheim, CA | Milling | ISO 9001, AS9100 |
| Red Cliff Precision LLC Milling, Turning · ITAR | Spring, TX | MillingTurning | ITAR |
| Resivine LLC Milling, Turning, Waterjet, EDM, Grinding | Houston, TX | MillingTurningWaterjetEDMGrinding | - |
| Rinval Manufacturing Laser | Indiana, PA | Laser | - |
| RivCut Milling, Turning, Bending, Metal AM · ISO 9001, AS9100, ITAR | Union City, CA | MillingTurningBendingMetal AM | ISO 9001, AS9100, ITAR |
| RPM Fast Metal AM · ISO 9001 | Sandy Springs, GA | Metal AM | ISO 9001 |
| RPM Tool Waterjet, Stamping | Princeton, IN | WaterjetStamping | - |
| Rtat Precision Machining, LLC Milling, Turning | Fairfax, VT | MillingTurning | - |
| Shaw Industries Co. LLC Milling, Turning, Welding, EDM · ISO 9001, ITAR | Franklin, PA | MillingTurningWeldingEDM | ISO 9001, ITAR |
| Straitek, LLC Milling, Bending, Finishing · ITAR, ISO 13485 | Danbury, CT | MillingBendingFinishing | ITAR, ISO 13485 |
| Sulzer Machine & Manufacturing Inc Milling, Welding, Grinding · ISO 9001 | Mosinee, WI | MillingWeldingGrinding | ISO 9001 |
| Suntiger Industries LLC Welding · ISO 9001, AS9100, ITAR | Oceanside, CA | Welding | ISO 9001, AS9100, ITAR |
| Super Web Digital, Inc Milling, Turning, Welding, Grinding | West Babylon, NY | MillingTurningWeldingGrinding | - |
| Synergy Core Manufacturing Milling | Denver, CO | Milling | - |
| TBT Machining Milling | Fremont, CA | Milling | - |
| Tolerance Tool & Engineering Milling, Turning, Welding · ISO 9001, ITAR | Detroit, MI | MillingTurningWelding | ISO 9001, ITAR |
| Tozli Machine Milling, Welding, Finishing · ISO 9001, ITAR, CMMC | Surprise, AZ | MillingWeldingFinishing | ISO 9001, ITAR, CMMC |
| True Cut Turning, Finishing | Lexington, TN | TurningFinishing | - |
| US Tower Corp Milling, Welding, Assembly · ISO 9001 | Woodlake, CA | MillingWeldingAssembly | ISO 9001 |
| VDH Manufacturing, LLC Turning, Swiss, Finishing · ISO 9001, ITAR, NADCAP | Erie, CO | TurningSwissFinishing | ISO 9001, ITAR, NADCAP |
| Venture Industrial Products Inc Welding, Assembly | Lees Summit, MO | WeldingAssembly | - |
| Vinaco Precision Machining, LLC Milling, Turning, Grinding, Finishing · ISO 9001, AS9100, NADCAP | Chatsworth, CA | MillingTurningGrindingFinishing | ISO 9001, AS9100, NADCAP |
| Waukesha Metal Products Welding, Stamping, Finishing · ISO 9001, AS9100, ITAR, IATF 16949, CMMC | Sussex, WI | WeldingStampingFinishing | ISO 9001, AS9100, ITAR, IATF 16949, CMMC |
| Whitmer Industries LLC Milling, Turning, Finishing · ISO 9001, ITAR | Baden, PA | MillingTurningFinishing | ISO 9001, ITAR |
| Wildfactory Milling, Turning, Waterjet | Camarillo, CA | MillingTurningWaterjet | - |