| Electronic Carbide, Inc Milling, Turning, EDM, Grinding · ITAR | Grass Valley, CA | MillingTurningEDMGrinding | ITAR |
| Griffin Welding LLC Welding | Waterbury, CT | Welding | - |
| KLM Machining, Inc Milling, Turning, Welding, Finishing | Sussex, WI | MillingTurningWeldingFinishing | - |
| Lenson Machine Inc Milling, Turning, Stamping, EDM · ISO 9001 | Middle River, MD | MillingTurningStampingEDM | ISO 9001 |
| Pennsylvania Steel Co. Inc. Welding · ISO 9001 | Birmingham, AL | Welding | ISO 9001 |
| Porter Machine Inc Milling, Casting, Grinding · ISO 9001, AS9100 | West Greenwich, RI | MillingCastingGrinding | ISO 9001, AS9100 |
| Precise Tool & Manufacturing Milling, Turning, Welding · ISO 9001, AS9100, ITAR | Rochester, NY | MillingTurningWelding | ISO 9001, AS9100, ITAR |
| Rig Machine Works LLC Milling, Turning, Bending, Welding, Grinding | Stevensville, MT | MillingTurningBendingWeldingGrinding | - |
| Sound Manufacturing, Inc Milling, Laser, Punching, Bending, Welding, Assembly · ISO 9001 | Old Saybrook, CT | MillingLaserPunchingBendingWeldingAssembly | ISO 9001 |
| Southern Rut Performance LLC Welding | Dahlonega, GA | Welding | - |
| Steel Plate Fabricators Milling, Turning, Bending, Laser, Welding, Waterjet, Metal AM | Knoxville, TN | MillingTurningBendingLaserWeldingWaterjetMetal AM | - |
| Stiverson Machine & Tool LLC Milling | Angola, IN | Milling | - |
| Troy Industrial Milling | Ansonia, CT | Milling | - |
| USA Precision Machining Milling, Turning · ISO 9001 | Houston, TX | MillingTurning | ISO 9001 |