| Modern Custom Fabrication Welding | Fresno, CA | Welding | - |
| Murphy Machine Products, Inc Milling, Turning, Swiss, Grinding, Finishing · ISO 9001 | Wood Dale, IL | MillingTurningSwissGrindingFinishing | ISO 9001 |
| N.G. Machining, LLC Milling, Grinding | Colorado Springs, CO | MillingGrinding | - |
| Non-Ferrous Casting Company Casting | Dayton, OH | Casting | - |
| Northern Gear, LLC Casting, Finishing | Muskego, WI | CastingFinishing | - |
| Odyssey Machining Milling, Finishing · ISO 9001, ITAR | San Jose, CA | MillingFinishing | ISO 9001, ITAR |
| Origin Manufacturing LLC Milling | Newport, RI | Milling | - |
| Oscar's Custom Iron Works Welding | San Antonio, TX | Welding | - |
| P&M Steel Company Welding | Sioux Falls, SD | Welding | - |
| Parallax Manufacturing LLC Milling, Turning, Bending, Welding, Stamping, Assembly · NADCAP | Lake Elsinore, CA | MillingTurningBendingWeldingStampingAssembly | NADCAP |
| Paramount Machine Turning, EDM · ISO 9001, AS9100, NADCAP | Manchester, CT | TurningEDM | ISO 9001, AS9100, NADCAP |
| Pcdrilling LLC Milling · ITAR | Tempe, AZ | Milling | ITAR |
| Perforated Panels Laser, Waterjet, Bending, Welding | Pacoima, CA | LaserWaterjetBendingWelding | - |
| Piedmont Precision Machine Co., Inc Welding | Danville, VA | Welding | - |
| Pivotal Manufacturing Inc Milling, Turning, Laser, Bending, Welding, Finishing · ISO 9001 | Braham, MN | MillingTurningLaserBendingWeldingFinishing | ISO 9001 |
| Pre-Mach Inc Milling, Welding, Grinding, Finishing | York, PA | MillingWeldingGrindingFinishing | - |
| Princeton Tool Inc Milling, Waterjet, Casting, EDM, Grinding, Assembly · AS9100, NADCAP | Mentor, OH | MillingWaterjetCastingEDMGrindingAssembly | AS9100, NADCAP |
| Production Speed Fixtures, LLC Milling, Turning, Laser, Welding, Grinding | Wingate, NC | MillingTurningLaserWeldingGrinding | - |
| Protofab Engineering Inc Milling, Turning, Swiss, Welding, EDM, Finishing · ISO 9001, AS9100, ITAR, ISO 13485 | Blaine, MN | MillingTurningSwissWeldingEDMFinishing | ISO 9001, AS9100, ITAR, ISO 13485 |
| Q Company, LLC Milling, Turning, Welding, Grinding, Finishing · ISO 9001, AS9100, ITAR | New Berlin, PA | MillingTurningWeldingGrindingFinishing | ISO 9001, AS9100, ITAR |
| Qualified Machine Shop Milling, Turning | San Diego, CA | MillingTurning | - |
| Quick Turn Anodizing LLC Finishing · ISO 9001, AS9100, ITAR | Edinburgh, IN | Finishing | ISO 9001, AS9100, ITAR |
| Quick Turn Precision Machining Milling, Turning, Welding · ISO 9001 | Ogden, UT | MillingTurningWelding | ISO 9001 |
| R & R Manufacturing Milling, Turning, Welding, Waterjet | Hillsboro, OR | MillingTurningWeldingWaterjet | - |
| R&D Machine LLC Milling, Assembly | Murrieta, CA | MillingAssembly | - |
| RECR Milling, Waterjet, Bending, Welding | Dayton, OH | MillingWaterjetBendingWelding | - |
| Rice Precision Manufacturing Inc Milling, Turning, Swiss, Laser, Waterjet, Welding, Finishing, Assembly · ISO 9001, AS9100 | Baldwin City, KS | MillingTurningSwissLaserWaterjetWeldingFinishingAssembly | ISO 9001, AS9100 |
| Roysters Machine Shop LLC Milling, Turning, Waterjet, Welding, Stamping, EDM · ISO 9001 | Henderson, KY | MillingTurningWaterjetWeldingStampingEDM | ISO 9001 |
| Rtat Precision Machining, LLC Milling, Turning | Fairfax, VT | MillingTurning | - |
| S&W Precision Machining LLC Milling, Turning · ISO 9001, AS9100, ITAR, CMMC | Commerce City, CO | MillingTurning | ISO 9001, AS9100, ITAR, CMMC |
| Sinclair and Sons Custom Welding and Machining Service Inc Milling, Turning, Waterjet, Welding, Assembly · ISO 9001, AS9100, NADCAP | Wichita, KS | MillingTurningWaterjetWeldingAssembly | ISO 9001, AS9100, NADCAP |
| Slagel Manufacturing, Inc Bending, Welding, Finishing · ISO 9001 | Forrest, IL | BendingWeldingFinishing | ISO 9001 |
| Starhagen Aerospace Components, LLC Milling, Metal AM | Mooresville, NC | MillingMetal AM | - |
| Stephen J Hartman Milling, Turning, Welding, Grinding | Sykesville, MD | MillingTurningWeldingGrinding | - |
| Stone Machine Co. Inc Milling, Turning, Grinding, Finishing | Chester, NH | MillingTurningGrindingFinishing | - |
| Suntiger Industries LLC Welding · ISO 9001, AS9100, ITAR | Oceanside, CA | Welding | ISO 9001, AS9100, ITAR |
| Surge Manufacturing LLC Milling · ISO 9001, AS9100, ITAR, CMMC | Otsego, MN | Milling | ISO 9001, AS9100, ITAR, CMMC |
| Swan Island Sheet Metal Works Turning, Bending, Laser, Welding | Portland, OR | TurningBendingLaserWelding | - |
| T.R. Reed Enterprises Inc Milling, Turning, Finishing · ISO 9001, AS9100 | Ponder, TX | MillingTurningFinishing | ISO 9001, AS9100 |
| Tech Five Machining LLC Milling, Turning, Finishing · ISO 9001, AS9100, ITAR | Tempe, AZ | MillingTurningFinishing | ISO 9001, AS9100, ITAR |
| Tecton Industries Inc Milling, Turning, Casting, Grinding · ISO 9001, AS9100 | Spencer, IA | MillingTurningCastingGrinding | ISO 9001, AS9100 |
| Texarkana Machine Inc Milling, Turning, Waterjet, Welding, Grinding, Finishing | Texarkana, TX | MillingTurningWaterjetWeldingGrindingFinishing | - |
| Thermo-Craft Engineering Corp Milling, Turning, Waterjet, Punching, Bending, Welding, Grinding, Assembly | Lynn, MA | MillingTurningWaterjetPunchingBendingWeldingGrindingAssembly | - |
| Tri Models Inc Milling, Turning, EDM, Finishing, Assembly | Huntington Beach, CA | MillingTurningEDMFinishingAssembly | - |
| Tri-V Tool & Manufacturing Co Milling, Turning, Bending, Welding, Waterjet, EDM · ISO 9001 | Omaha, NE | MillingTurningBendingWeldingWaterjetEDM | ISO 9001 |
| True Cut Turning, Finishing | Lexington, TN | TurningFinishing | - |
| Turbo Machining LLC Milling, Welding · ISO 9001 | Allegany, NY | MillingWelding | ISO 9001 |
| U. P. Machine & Engineering Co Turning | Powers, MI | Turning | - |
| Ultimate Precision Tech Milling, Turning, EDM | Houston, TX | MillingTurningEDM | - |
| Velocity Machine Works LLC Milling, Turning | Tallahassee, FL | MillingTurning | - |