| Blue Arc Metal Specialties, Inc Bending, Welding, Finishing | Claremore, OK | BendingWeldingFinishing | - |
| Blue Arc Metalwork & Fabrication LLC Welding | Palmetto, FL | Welding | - |
| Blue Chip Machine Milling, Finishing, Assembly | Vassalboro, ME | MillingFinishingAssembly | - |
| Blue Waters Engineering LLC Milling · ISO 9001, AS9100, ITAR | Vancouver, WA | Milling | ISO 9001, AS9100, ITAR |
| Bluewater Industries Inc Milling, Turning, Welding, Casting, Finishing | Moses Lake, WA | MillingTurningWeldingCastingFinishing | - |
| Blue Atlantic Fabricators LLC Bending, Welding | East Boston, MA | BendingWelding | - |
| Blue Collar Metalworks Welding | Newport News, VA | Welding | - |
| Swan Island Sheet Metal Works Turning, Bending, Laser, Welding | Portland, OR | TurningBendingLaserWelding | - |
| Blue Ridge Machine Works Inc Milling, Turning, Waterjet, Welding, Grinding, Finishing | Verona, VA | MillingTurningWaterjetWeldingGrindingFinishing | - |
| Harbor Island Machine Works, Inc Milling, Grinding | Seattle, WA | MillingGrinding | - |
| Meta Manufacturing Corp Milling, Turning | Blue Ash, OH | MillingTurning | - |
| Chicago Magnesium Casting Co Welding, Casting · AS9100, NADCAP | Blue Island, IL | WeldingCasting | AS9100, NADCAP |
| 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 |
| Blackwater Industries Professional Limited Liability Company Welding | Toledo, WA | Welding | - |
| Brooks Industrial, LLC Milling, Grinding, Finishing | North Attleboro, MA | MillingGrindingFinishing | - |
| Derecktor Marine Technology LLC Milling, Turning, Waterjet, Welding | Bristol, RI | MillingTurningWaterjetWelding | - |
| Global Correlations Inc Milling, Turning, Grinding | Miami, FL | MillingTurningGrinding | - |
| JRS Precision Milling, Turning · ISO 9001, AS9100, ITAR | Ronkonkoma, NY | MillingTurning | ISO 9001, AS9100, ITAR |
| Mac Origin Inc Milling | Bingen, WA | Milling | - |
| Magnum Machining LLC Milling, Turning, Finishing | Richmond, IL | MillingTurningFinishing | - |
| RC Supply Corp Bending, Welding | Freeport, NY | BendingWelding | - |