| Blue Arc Metal Specialties, Inc Bending, Welding, Finishing | Claremore, OK | BendingWeldingFinishing | - |
| Blue Arc Metalwork & Fabrication LLC Welding | Palmetto, FL | Welding | - |
| 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 | - |
| Chicago Magnesium Casting Co Welding, Casting · AS9100, NADCAP | Blue Island, IL | WeldingCasting | AS9100, NADCAP |
| 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 | - |
| Derecktor Marine Technology LLC Milling, Turning, Waterjet, Welding | Bristol, RI | MillingTurningWaterjetWelding | - |
| RC Supply Corp Bending, Welding | Freeport, NY | BendingWelding | - |