| Hards Fabrication & Welding, Inc Milling, Turning, Waterjet, Bending, Welding | Seneca, PA | MillingTurningWaterjetBendingWelding | - |
| Max Machine Milling, Turning, Laser, Waterjet, Welding, Grinding, Finishing · ISO 9001 | Elizabethtown, PA | MillingTurningLaserWaterjetWeldingGrindingFinishing | ISO 9001 |
| Belleville International Waterjet · ISO 9001 | Butler, PA | Waterjet | ISO 9001 |
| Aurele M Gatti Inc Milling, Turning, Waterjet | Fairless Hills, PA | MillingTurningWaterjet | - |
| Apex Engineered Products Milling, Turning, Waterjet, Welding, Finishing | Clark, PA | MillingTurningWaterjetWeldingFinishing | - |
| Bear Ridge Mach & Fab Inc Milling, Laser, Waterjet, Punching, Bending, Welding, Grinding | Frackville, PA | MillingLaserWaterjetPunchingBendingWeldingGrinding | - |
| Dixon Tool & Die Co Inc Milling, Turning, Waterjet, Welding, EDM, Grinding · ISO 9001, CMMC | Tyrone, PA | MillingTurningWaterjetWeldingEDMGrinding | ISO 9001, CMMC |
| Experimental Machine Inc Milling, Waterjet, Welding, Assembly · ISO 9001, AS9100, ITAR, CMMC | New Freedom, PA | MillingWaterjetWeldingAssembly | ISO 9001, AS9100, ITAR, CMMC |
| Folsom Tool & Mold Corp Milling, Turning, Waterjet, Welding | Aston, PA | MillingTurningWaterjetWelding | - |
| Gene Davis Sales & Services Laser, Welding, Waterjet | Erie, PA | LaserWeldingWaterjet | - |
| Machining Tech Milling, Turning, Waterjet, Welding, Stamping, EDM, Grinding | Hazle Township, PA | MillingTurningWaterjetWeldingStampingEDMGrinding | - |
| Penn Sheet Metal Bending, Laser, Welding, Waterjet | Allentown, PA | BendingLaserWeldingWaterjet | - |
| Pga Machine Co Milling, Turning, Waterjet, Welding, Finishing | Eddystone, PA | MillingTurningWaterjetWeldingFinishing | - |
| Qmac-Quality Machining Inc Milling, Turning, Waterjet, Punching, Welding, Finishing · ITAR | Bellefonte, PA | MillingTurningWaterjetPunchingWeldingFinishing | ITAR |
| Reisinger Automation & Design LLC Milling, Turning, Waterjet, Welding, Grinding, Finishing | Reading, PA | MillingTurningWaterjetWeldingGrindingFinishing | - |
| Reuss Industries, Inc Milling, Turning, Waterjet, Welding, EDM, Grinding | Madison, PA | MillingTurningWaterjetWeldingEDMGrinding | - |
| Shoemaker Mfg Solutions Inc Milling, Turning, Laser, Waterjet, Punching, Bending, Welding, Stamping, Grinding · ISO 9001, AS9100, ITAR, CMMC | Souderton, PA | MillingTurningLaserWaterjetPunchingBendingWeldingStampingGrinding | ISO 9001, AS9100, ITAR, CMMC |
| Skytop Machine and Tool, Inc Milling, Turning, Waterjet, Welding, Grinding | Port Matilda, PA | MillingTurningWaterjetWeldingGrinding | - |
| Trimmaster Milling, Turning, Waterjet, Welding, Assembly · ISO 9001, ITAR | Temple, PA | MillingTurningWaterjetWeldingAssembly | ISO 9001, ITAR |
| Vptt Armaments Milling, Turning, Laser, Waterjet, Bending, Welding, Stamping, EDM, Grinding, Assembly · ISO 9001, ITAR | Tower City, PA | MillingTurningLaserWaterjetBendingWeldingStampingEDMGrindingAssembly | ISO 9001, ITAR |
| Atomatic Manufacturing Co Welding, Waterjet | East Pittsburgh, PA | WeldingWaterjet | - |
| Chick Machine Company, LLC Milling, Turning, Waterjet, Grinding, Finishing · ISO 9001, AS9100, ITAR | Butler, PA | MillingTurningWaterjetGrindingFinishing | ISO 9001, AS9100, ITAR |
| H R Edgar Machining & Fabricating, Inc Milling, Turning, Waterjet, Welding · ISO 9001 | New Kensington, PA | MillingTurningWaterjetWelding | ISO 9001 |
| Hennemuth Metal Fabricators Bending, Welding, Waterjet | Oakdale, PA | BendingWeldingWaterjet | - |
| Kuhn Tool & Die Co Milling, Waterjet, Welding, Stamping, EDM, Grinding | Meadville, PA | MillingWaterjetWeldingStampingEDMGrinding | - |
| Merit Industries Milling, Turning, Laser, Waterjet, Welding, EDM, Grinding, Finishing · AS9100, ITAR, NADCAP, CMMC | Erie, PA | MillingTurningLaserWaterjetWeldingEDMGrindingFinishing | AS9100, ITAR, NADCAP, CMMC |
| Metplas Inc Milling, Turning, Waterjet, Punching, Bending, Assembly · ISO 9001 | Natrona Heights, PA | MillingTurningWaterjetPunchingBendingAssembly | ISO 9001 |
| Precision Defense Services Inc Milling, Turning, Waterjet, Welding, EDM, Grinding, Finishing · ISO 9001, AS9100 | Irwin, PA | MillingTurningWaterjetWeldingEDMGrindingFinishing | ISO 9001, AS9100 |