| Professional Plating, Inc Finishing · ISO 13485 | Anoka, MN | Finishing | ISO 13485 |
| Rossetti Galaxy Enterprises, Inc Laser, Waterjet, Welding · ISO 9001 | Rothsay, MN | LaserWaterjetWelding | ISO 9001 |
| Slag Factory Milling, Laser, Welding | Oroville, CA | MillingLaserWelding | - |
| Slagel Manufacturing, Inc Bending, Welding, Finishing · ISO 9001 | Forrest, IL | BendingWeldingFinishing | ISO 9001 |
| Southwest Waterjet and Laser Milling, Laser, Waterjet, Bending | Phoenix, AZ | MillingLaserWaterjetBending | - |
| Stellar Industries LLC Laser, Bending, Welding, Stamping, Finishing · ISO 9001 | Nappanee, IN | LaserBendingWeldingStampingFinishing | ISO 9001 |
| Strickland Industries Milling, Turning, Laser, Bending, Welding, Assembly | Mansfield, TX | MillingTurningLaserBendingWeldingAssembly | - |
| Strickland Machine Co LLC Milling, Turning, Welding, Stamping, Grinding, Finishing, Assembly | North Chesterfield, VA | MillingTurningWeldingStampingGrindingFinishingAssembly | - |
| Swan Island Sheet Metal Works Turning, Bending, Laser, Welding | Portland, OR | TurningBendingLaserWelding | - |
| Swiss Labs Machine and Engineering, Inc Milling, Turning, Swiss, Finishing · ISO 9001 | Franklin, IN | MillingTurningSwissFinishing | ISO 9001 |
| Target Laser & Machining, Inc Laser, Bending, Welding · ISO 9001 | Rockford, IL | LaserBendingWelding | ISO 9001 |
| Theta Plate Inc Finishing · ISO 9001, ITAR | Albuquerque, NM | Finishing | ISO 9001, ITAR |
| Troy Laser & Fab LLC Milling, Laser, Waterjet, Bending, Welding | Warren, MI | MillingLaserWaterjetBendingWelding | - |
| Villa Machine Associates, Inc Milling, Turning, Laser, Waterjet, Bending, Welding, EDM, Grinding, Assembly | Dedham, MA | MillingTurningLaserWaterjetBendingWeldingEDMGrindingAssembly | - |
| Wallabys Fabrications LLC Punching, Bending, Welding, Finishing | Fort Pierce, FL | PunchingBendingWeldingFinishing | - |
| Wendtland Machine Works Milling, Turning, Laser, Welding | Sheridan, WY | MillingTurningLaserWelding | - |
| Wisconsin Plating Works of Racine, Inc Finishing, Assembly · ISO 9001 | Racine, WI | FinishingAssembly | ISO 9001 |
| Alamo City Custom Welding & Construction Welding | San Antonio, TX | Welding | - |
| Alaskan Copper Works Bending, Welding, Waterjet | Seattle, WA | BendingWeldingWaterjet | - |
| Atlantic Fabricating Milling, Turning, Punching, Bending, Welding, Assembly · ISO 9001 | East Granby, CT | MillingTurningPunchingBendingWeldingAssembly | ISO 9001 |
| Atlas Foundry Company Inc Casting, Grinding | Marion, IN | CastingGrinding | - |
| Atlas Machine & Supply, Inc. Milling, Turning, Welding, EDM · ISO 9001 | Louisville, KY | MillingTurningWeldingEDM | ISO 9001 |
| Ballard Marine Fabricators Welding | Seattle, WA | Welding | - |
| Blackhawk Engineering LLC Milling, Turning · ISO 9001, ITAR | Cedar Falls, IA | MillingTurning | ISO 9001, ITAR |
| Blackhawk Machine Products Inc Milling, Turning | Smithfield, RI | MillingTurning | - |
| Blake Machine Milling, Turning, Welding | Phoenix, AZ | MillingTurningWelding | - |
| Bland Brothers Enterprises Milling, Welding, Assembly | Springfield, IL | MillingWeldingAssembly | - |
| Blue Collar Metalworks Welding | Newport News, VA | Welding | - |
| Bula Forge & Machine Inc Milling, Turning, Welding, Forging, Assembly · ISO 9001 | Cleveland, OH | MillingTurningWeldingForgingAssembly | ISO 9001 |
| C&C Fabrication Co Milling, Turning, Laser, Waterjet, Punching, Bending, Welding, Grinding, Finishing, Assembly | Laceys Spring, AL | MillingTurningLaserWaterjetPunchingBendingWeldingGrindingFinishingAssembly | - |
| Callacore LLC Milling, Turning, Grinding · AS9100 | Hutchinson, KS | MillingTurningGrinding | AS9100 |
| Campbell Engineering Milling, Welding, EDM, Finishing, Assembly · ISO 9001, ITAR | Lake Forest, CA | MillingWeldingEDMFinishingAssembly | ISO 9001, ITAR |
| Clardy Machine Works LLC Milling, Turning, Welding | Bremen, KY | MillingTurningWelding | - |
| Clark Fixture Technologies Inc Bending, Welding · ISO 9001, AS9100 | Bowling Green, OH | BendingWelding | ISO 9001, AS9100 |
| Clark Machine Corporation Welding, Finishing | Baltimore, MD | WeldingFinishing | - |
| Clark Metal Products Co Milling, Laser, Punching, Bending, Welding, Finishing, Assembly · ISO 9001 | Blairsville, PA | MillingLaserPunchingBendingWeldingFinishingAssembly | ISO 9001 |
| Clarksville Foundry Casting | Clarksville, TN | Casting | - |
| Class A Tooling Inc Milling, Turning, Bending, Welding, Stamping, EDM, Grinding | Cabot, AR | MillingTurningBendingWeldingStampingEDMGrinding | - |
| Class Tool & Die Milling, Turning, Casting · ISO 9001 | Mukwonago, WI | MillingTurningCasting | ISO 9001 |
| Classic Turning Inc Milling, Turning, Swiss, Finishing | Jackson, MI | MillingTurningSwissFinishing | - |
| Columbia Asc Inc Milling, Turning, Laser, Waterjet, Bending, Welding, Stamping, EDM · ISO 9001 | Lawrence, MA | MillingTurningLaserWaterjetBendingWeldingStampingEDM | ISO 9001 |
| Cope Plastics, Inc Turning, Bending | Fargo, ND | TurningBending | - |
| Cumberland Machine Co Milling, Turning, Welding | Nashville, TN | MillingTurningWelding | - |
| Custom Welding by Law, Inc Waterjet, Bending, Welding | Orlando, FL | WaterjetBendingWelding | - |
| Dalane Machining Inc Turning | Tampa, FL | Turning | - |
| Dallas Fabrication Welding | Carrollton, TX | Welding | - |
| Dallas Machine and Tool Milling, Welding | Carrollton, TX | MillingWelding | - |
| Deland Manufacturing Inc Milling, Turning · ISO 9001, AS9100, ITAR | Shelby Township, MI | MillingTurning | ISO 9001, AS9100, ITAR |
| Delaware Metals Milling, Turning, EDM | Wilmington, DE | MillingTurningEDM | - |
| Ella Engineering Incorporated Milling, Turning, Finishing | Elk Grove Village, IL | MillingTurningFinishing | - |