| Swan Island Sheet Metal Works Turning, Bending, Laser, Welding | Portland, OR | TurningBendingLaserWelding | - |
| Harbor Island Machine Works, Inc Milling, Grinding | Seattle, WA | MillingGrinding | - |
| Interior Metals Laser, Punching, Bending, Welding, Finishing | Staten Island, NY | LaserPunchingBendingWeldingFinishing | - |
| Harbor Island Supply Corporation Casting | Seattle, WA | Casting | - |
| Accurate Industrial Machining Inc Milling, Turning, Laser, Bending, Welding, Assembly · ISO 9001, ITAR, CMMC | Holbrook, NY | MillingTurningLaserBendingWeldingAssembly | ISO 9001, ITAR, CMMC |
| Archimedes Products Inc Milling, Turning, Welding, Stamping, Grinding, Finishing · ISO 9001, AS9100 | Bohemia, NY | MillingTurningWeldingStampingGrindingFinishing | ISO 9001, AS9100 |
| Brooks Industrial, LLC Milling, Grinding, Finishing | North Attleboro, MA | MillingGrindingFinishing | - |
| Derecktor Marine Technology LLC Milling, Turning, Waterjet, Welding | Bristol, RI | MillingTurningWaterjetWelding | - |
| JRS Precision Milling, Turning · ISO 9001, AS9100, ITAR | Ronkonkoma, NY | MillingTurning | ISO 9001, AS9100, ITAR |
| RC Supply Corp Bending, Welding | Freeport, NY | BendingWelding | - |