| Palmetto Precision Machining, Inc Milling, Welding, EDM, Grinding · ISO 9001 | Anderson, SC | MillingWeldingEDMGrinding | ISO 9001 |
| Piedmont Precision Machine Co., Inc Welding | Danville, VA | Welding | - |
| Plas-Tech Tooling Inc Milling, Turning, Welding, Finishing, Assembly | Garner, IA | MillingTurningWeldingFinishingAssembly | - |
| Precision Fabrication, Inc. Milling, Bending, Laser, Welding, Waterjet | Fort Wayne, IN | MillingBendingLaserWeldingWaterjet | - |
| Precision Manufacturing Milling, Turning · ISO 9001, ITAR, ISO 13485 | Roseville, CA | MillingTurning | ISO 9001, ITAR, ISO 13485 |
| Prismier, LLC Stamping, Casting · ISO 9001 | Bolingbrook, IL | StampingCasting | ISO 9001 |
| Production Pattern and Foundry Co Inc Milling, Turning, Casting, Finishing · ISO 9001, IATF 16949 | Mound House, NV | MillingTurningCastingFinishing | ISO 9001, IATF 16949 |
| Professional Plating, Inc Finishing · ISO 13485 | Anoka, MN | Finishing | ISO 13485 |
| Proto Edge, Inc Milling, Swiss, Casting, EDM, Assembly · ISO 9001 | Maple Grove, MN | MillingSwissCastingEDMAssembly | ISO 9001 |
| Prototek Digital ManufacturingVerified Milling, Turning, Laser, Waterjet, Bending, Welding, EDM, Finishing, Assembly · ISO 9001, AS9100, ITAR, NADCAP, CMMC | Menomonie, WI | MillingTurningLaserWaterjetBendingWeldingEDMFinishingAssembly | ISO 9001, AS9100, ITAR, NADCAP, CMMC |
| Prototype Casting Inc Milling, Turning, Welding, Casting | Commerce City, CO | MillingTurningWeldingCasting | - |
| R C Industries Inc Finishing | Chicago, IL | Finishing | - |
| R. J. Zeman Tool & Mfg. Co., Inc Milling, Turning, Welding, Casting, EDM, Grinding · ISO 9001, ITAR | Waukesha, WI | MillingTurningWeldingCastingEDMGrinding | ISO 9001, ITAR |
| Radical Fabrications LLC Milling, Turning, Welding, Grinding | Lancaster, CA | MillingTurningWeldingGrinding | - |
| Raptor Manufacturing LC Milling, Turning, Welding, Grinding · ISO 9001, AS9100, ITAR | Wichita, KS | MillingTurningWeldingGrinding | ISO 9001, AS9100, ITAR |
| Rock Valley Tool, LLC Milling, Turning, Grinding · ISO 9001, AS9100, ITAR | Easthampton, MA | MillingTurningGrinding | ISO 9001, AS9100, ITAR |
| RPM Fast Metal AM · ISO 9001 | Sandy Springs, GA | Metal AM | ISO 9001 |
| Sa Aerospace Inc Milling, Turning, Waterjet, EDM · ISO 9001, AS9100 | Sun Valley, CA | MillingTurningWaterjetEDM | ISO 9001, AS9100 |
| Southwest Greene International Inc Milling, Turning, Stamping, Metal AM, EDM | Oceanside, CA | MillingTurningStampingMetal AMEDM | - |
| Spartan Machine LLC Milling, Turning | Spring, TX | MillingTurning | - |
| ST Paul Brass Foundry Co Casting, Finishing · ISO 9001, AS9100, ITAR, CMMC | Saint Paul, MN | CastingFinishing | ISO 9001, AS9100, ITAR, CMMC |
| Stampede Die Corp Milling, Turning, Waterjet, Welding, Casting, EDM | Wayland, MI | MillingTurningWaterjetWeldingCastingEDM | - |
| Stentech, Inc Milling, Turning, Laser, EDM · ISO 9001, AS9100, ITAR | Lumberton Township, NJ | MillingTurningLaserEDM | ISO 9001, AS9100, ITAR |
| T F E Company Inc Milling, Turning, Laser, Casting · ITAR | Brenham, TX | MillingTurningLaserCasting | ITAR |
| Tampco Inc Welding, Forging | Elkin, NC | WeldingForging | - |
| Tek Additions LLC Finishing | Wilmington, NC | Finishing | - |
| The Toolroom, Inc Milling, Punching, Welding, EDM | Owensville, MO | MillingPunchingWeldingEDM | - |
| Theta Plate Inc Finishing · ISO 9001, ITAR | Albuquerque, NM | Finishing | ISO 9001, ITAR |
| Tico Tooling LLC Milling, Turning, Stamping, EDM, Grinding · ISO 9001 | San Marcos, TX | MillingTurningStampingEDMGrinding | ISO 9001 |
| Toolrite Mfg Co., Inc Turning, Grinding | New Berlin, WI | TurningGrinding | - |
| Total Machining USA Inc Bending, Welding · ISO 9001, AS9100, ITAR | Oakland Park, FL | BendingWelding | ISO 9001, AS9100, ITAR |
| Tri Fab Associates, Inc Milling, Turning, Laser, Punching, Welding, Stamping, Grinding, Finishing, Assembly · ISO 9001, AS9100, ITAR, CMMC | Fremont, CA | MillingTurningLaserPunchingWeldingStampingGrindingFinishingAssembly | ISO 9001, AS9100, ITAR, CMMC |
| Trinity Machining, LLC Milling, Turning, Bending, EDM, Grinding, Finishing · ISO 9001 | Grass Valley, CA | MillingTurningBendingEDMGrindingFinishing | ISO 9001 |
| True Cut Turning, Finishing | Lexington, TN | TurningFinishing | - |
| Trust Manufacturing LLC Milling, Turning, Waterjet, Bending, Forging, EDM, Grinding, Finishing | Euclid, OH | MillingTurningWaterjetBendingForgingEDMGrindingFinishing | - |
| Tyr Manufacturing LLC Milling, Turning · ISO 9001, ITAR, CMMC | Sedgwick, KS | MillingTurning | ISO 9001, ITAR, CMMC |
| Uber Machining Services LLC Milling, Turning, Finishing | Pittsburgh, PA | MillingTurningFinishing | - |
| Valence Precision LLC Milling, Turning, Laser, Waterjet, Bending, Welding, Grinding | Richmond, CA | MillingTurningLaserWaterjetBendingWeldingGrinding | - |
| VMC Precision LLC Milling, Welding, Finishing | Kansas City, MO | MillingWeldingFinishing | - |
| Vorteque LLC Milling, Turning, Waterjet, Bending, Welding | Missoula, MT | MillingTurningWaterjetBendingWelding | - |
| Williams Engineering LLC Milling, Turning, Welding | Cincinnati, OH | MillingTurningWelding | - |
| Wirecut Technologies, Inc Milling, Turning, EDM, Grinding | Indianapolis, IN | MillingTurningEDMGrinding | - |