| B & H Toolworks Inc Milling, Turning, Laser, Bending, Welding, Stamping, EDM, Finishing · ISO 9001 | Richmond, KY | MillingTurningLaserBendingWeldingStampingEDMFinishing | ISO 9001 |
| B & W Machine Works, Inc Milling, Turning, Swiss, Grinding, Finishing · AS9100, NADCAP | Perkasie, PA | MillingTurningSwissGrindingFinishing | AS9100, NADCAP |
| Baldwin Metals Inc Milling, Turning, Bending, Laser, Welding | Dallas, TX | MillingTurningBendingLaserWelding | - |
| Belfanti Machine Works LLC Milling, Turning, Waterjet, Welding, Stamping | Beaverton, OR | MillingTurningWaterjetWeldingStamping | - |
| Bell Machine Works Milling, Finishing · ISO 9001, ITAR | Gilroy, CA | MillingFinishing | ISO 9001, ITAR |
| Bellwether Inc Milling, Turning, Waterjet, EDM, Grinding · ISO 9001 | Mcdonough, GA | MillingTurningWaterjetEDMGrinding | ISO 9001 |
| Blackwater Industries Professional Limited Liability Company Welding | Toledo, WA | Welding | - |
| Blue Collar Metalworks Welding | Newport News, VA | Welding | - |
| Blue Ridge Machine Works Inc Milling, Turning, Waterjet, Welding, Grinding, Finishing | Verona, VA | MillingTurningWaterjetWeldingGrindingFinishing | - |
| Bluewater Industries Inc Milling, Turning, Welding, Casting, Finishing | Moses Lake, WA | MillingTurningWeldingCastingFinishing | - |
| BMW Precision Machining Milling, Turning, Swiss · ITAR | Oceanside, CA | MillingTurningSwiss | ITAR |
| Bob Lewis Machine Company, Inc Milling, Turning, Welding, EDM, Grinding, Finishing · ISO 9001, AS9100 | Gardena, CA | MillingTurningWeldingEDMGrindingFinishing | ISO 9001, AS9100 |
| Bob’s Welding, Machining & Fabrication, Inc. Bending, Welding | Anaheim, CA | BendingWelding | - |
| Boise Metal Works Welding, Waterjet | Boise, ID | WeldingWaterjet | - |
| Broadway Metal Works Inc Milling, Turning, Laser, Waterjet, Bending, Welding | Broadway, VA | MillingTurningLaserWaterjetBendingWelding | - |
| Brown Industries Inc Milling, Turning, Bending, Welding | Kansas City, MO | MillingTurningBendingWelding | - |
| Brown Precision Inc Milling, Turning, Bending, Welding, Waterjet, EDM · ISO 9001, AS9100 | Huntsville, AL | MillingTurningBendingWeldingWaterjetEDM | ISO 9001, AS9100 |
| C & W Manufacturing Milling, Turning, Welding, Grinding, Finishing · ISO 9001, ITAR, CMMC | Turlock, CA | MillingTurningWeldingGrindingFinishing | ISO 9001, ITAR, CMMC |
| C F W Precision Metal Components Waterjet, Assembly · ISO 9001 | Grover Beach, CA | WaterjetAssembly | ISO 9001 |
| Caldwell Corp Milling, Turning, Welding, Grinding | Emporium, PA | MillingTurningWeldingGrinding | - |
| CalWest MFG Milling, Turning, Laser, Waterjet, Bending, Welding · ISO 9001, ITAR | Fontana, CA | MillingTurningLaserWaterjetBendingWelding | ISO 9001, ITAR |
| Cardinal Metal Works LLC Welding, Assembly · ISO 9001 | Burgaw, NC | WeldingAssembly | ISO 9001 |
| Carollo Metal Works Welding | Chalmette, LA | Welding | - |
| Chambers Welding & Fabrication Bending, Welding | Chattanooga, TN | BendingWelding | - |
| Clardy Machine Works LLC Milling, Turning, Welding | Bremen, KY | MillingTurningWelding | - |
| Clow Stamping Company, Inc Milling, Turning, Laser, Bending, Welding, Stamping, EDM, Grinding, Finishing, Assembly | Merrifield, MN | MillingTurningLaserBendingWeldingStampingEDMGrindingFinishingAssembly | - |
| Colonial Welding, LLC Turning, Laser, Bending, Welding, Finishing | Norfolk, VA | TurningLaserBendingWeldingFinishing | - |
| Columbia Machine Works, Inc Milling, Turning, Welding, Stamping, Casting · ISO 9001, ITAR | Columbia, TN | MillingTurningWeldingStampingCasting | ISO 9001, ITAR |
| Crowdynamics LLC Milling, Turning, Finishing, Assembly | Albuquerque, NM | MillingTurningFinishingAssembly | - |
| Crown Fabricators Welding | Las Vegas, NV | Welding | - |
| Crown Machine Inc Milling, Turning, Welding, EDM · ISO 9001 | Rockford, IL | MillingTurningWeldingEDM | ISO 9001 |
| Custom Machine & Welding, Inc Turning, Waterjet, Bending, Welding, Grinding, Finishing | North Augusta, SC | TurningWaterjetBendingWeldingGrindingFinishing | - |
| Custom Metal Works Milling, Bending, Welding | Tulsa, OK | MillingBendingWelding | - |
| Custom Welding by Law, Inc Waterjet, Bending, Welding | Orlando, FL | WaterjetBendingWelding | - |
| Cutco Metal Sawing LLC Milling, Turning, Welding, Grinding | Burleson, TX | MillingTurningWeldingGrinding | - |
| D&F Screw Machine Products Turning, Waterjet, Grinding · ISO 9001 | East Hanover, NJ | TurningWaterjetGrinding | ISO 9001 |
| Davis Machine Works of Opelika Inc Welding | Opelika, AL | Welding | - |
| Decker Machine Works Inc Milling, Turning, Swiss, EDM, Grinding · ISO 9001, AS9100, ITAR | Greenfield, MA | MillingTurningSwissEDMGrinding | ISO 9001, AS9100, ITAR |
| Denali MetalWorks Bending, Laser, Welding, Waterjet | Phoenix, AZ | BendingLaserWeldingWaterjet | - |
| Desert West CNC LLC Milling, Turning, Finishing | El Paso, TX | MillingTurningFinishing | - |
| Designed With Sparks LLC Welding | Usk, WA | Welding | - |
| Deweys Service Company, LLC Laser, Welding, Grinding | Columbia, SC | LaserWeldingGrinding | - |
| Dgworks Mfg. LLC Turning, Swiss · ISO 9001, AS9100, ITAR | Estacada, OR | TurningSwiss | ISO 9001, AS9100, ITAR |
| Diamond W Custom Machine Works LLC Milling, Turning, Laser, Waterjet, Welding, Finishing | Phillipsburg, KS | MillingTurningLaserWaterjetWeldingFinishing | - |
| Dicostanzo Welding Services LLC Welding | Anderson, SC | Welding | - |
| Drews Fabrication and Welding LLC Welding | Longview, WA | Welding | - |
| DW Engineering LLC Milling, Turning, Welding | Burnsville, MN | MillingTurningWelding | - |
| DW Products Milling, Turning, Bending, Welding, Waterjet · ISO 9001, ITAR | Cedar Rapids, IA | MillingTurningBendingWeldingWaterjet | ISO 9001, ITAR |
| E.H. Schwab Milling, Turning, Laser, Punching, Bending, Welding · ISO 9001 | Turtle Creek, PA | MillingTurningLaserPunchingBendingWelding | ISO 9001 |
| East Coast Welding and Fabrication, LLC Turning, Welding, Finishing, Assembly | Newburyport, MA | TurningWeldingFinishingAssembly | - |