| High Steel Structures LLC Welding | Lancaster, PA | Welding | - |
| Horst Engineering Milling, Turning · ISO 9001, AS9100 | East Hartford, CT | MillingTurning | ISO 9001, AS9100 |
| IronStrong Metal Fabrication LLC Milling, Bending, Laser, Welding | Lancaster, PA | MillingBendingLaserWelding | - |
| J.W. Steel Fabricating Co. Bending, Welding | Mars, PA | BendingWelding | - |
| KBM Industries Bending, Welding | Mechanicsburg, PA | BendingWelding | - |
| Kern Steel Fabrication Inc Bending, Welding · ISO 9001 | Bakersfield, CA | BendingWelding | ISO 9001 |
| Kozel Steel Welding | Rochester, NY | Welding | - |
| Laystrom Manufacturing Company Bending, Laser, Welding | Chicago, IL | BendingLaserWelding | - |
| Loftis Steel & Aluminum, Inc. Milling, Laser, Waterjet | Nashville, TN | MillingLaserWaterjet | - |
| Machinist Group Corporation Milling, Turning, Waterjet · ISO 9001, ITAR | Reno, NV | MillingTurningWaterjet | ISO 9001, ITAR |
| Machinist Lab Milling, EDM | San Diego, CA | MillingEDM | - |
| Maria Custom Sheet Metal Bending, Welding | Englewood, CO | BendingWelding | - |
| Master Metal Products Co Bending, Welding | San Jose, CA | BendingWelding | - |
| Master Precision Machining Milling, Welding · ISO 9001, AS9100 | Santa Clara, CA | MillingWelding | ISO 9001, AS9100 |
| MetalWork Austin Bending, Welding | Austin, TX | BendingWelding | - |
| Mid-State Metals Bending, Welding | Orlando, FL | BendingWelding | - |
| Olson & Co. Steel Welding | Fresno, CA | Welding | - |
| P&M Steel Company Welding | Sioux Falls, SD | Welding | - |
| Pascetti Steel Design, Inc. Bending, Welding | Albuquerque, NM | BendingWelding | - |
| Peak Custom Fabrication Bending, Welding | Colorado Springs, CO | BendingWelding | - |
| Pennsylvania Steel Co. Inc. Welding · ISO 9001 | Birmingham, AL | Welding | ISO 9001 |
| Premier Steel Bending, Welding | Anaheim, CA | BendingWelding | - |
| QSR Steel Corporation Welding | Hartford, CT | Welding | - |
| Restless Machines LLC Milling, Turning | Greenville, SC | MillingTurning | - |
| Retro Custom Metals Welding | Salt Lake City, UT | Welding | - |
| Rex Industries Inc Bending, Welding | Salt Lake City, UT | BendingWelding | - |
| Service Steel, Inc. Welding | Huntsville, AL | Welding | - |
| Snyder Industries Inc Milling, Turning, Welding · ISO 9001 | Tonawanda, NY | MillingTurningWelding | ISO 9001 |
| SOS Steel Co Inc Welding | Santa Clara, CA | Welding | - |
| South Austin Metals Bending, Welding | Austin, TX | BendingWelding | - |
| Swihart Industries Milling, Turning · ISO 9001 | Dayton, OH | MillingTurning | ISO 9001 |
| Texas Specialty Steel Welding | San Antonio, TX | Welding | - |
| Tri-Tec Industries Milling, Turning, Welding | Charlotte, NC | MillingTurningWelding | - |
| Upright Steel Fabricators Bending, Laser, Welding, Waterjet | Cleveland, OH | BendingLaserWeldingWaterjet | - |
| V-Lake Industries Milling, Turning · ISO 9001 | Buffalo, NY | MillingTurning | ISO 9001 |
| Velocity Custom Fabrication Milling, Bending, Laser, Welding | Tulsa, OK | MillingBendingLaserWelding | - |
| Vista Manufacturing Company Milling, Turning, Bending, Laser, Welding | Kansas City, KS | MillingTurningBendingLaserWelding | - |
| Western Machine Works, LLC Milling, Welding | Portland, OR | MillingWelding | - |
| Westwood Fabrication & Sheet Metal Bending, Laser, Welding | Dayton, OH | BendingLaserWelding | - |
| Wheeler Industries Inc Milling, Turning, Bending, Welding | Spokane Valley, WA | MillingTurningBendingWelding | - |
| Yarbrough Industries Bending, Welding, Waterjet | Springfield, MO | BendingWeldingWaterjet | - |
| Artistic Iron Works Welding | Las Vegas, NV | Welding | - |
| Austin Dynamics, Inc. Milling, Turning · ISO 9001, AS9100, ITAR | Cedar Park, TX | MillingTurning | ISO 9001, AS9100, ITAR |
| C. R. Metal Products Inc Bending, Laser, Welding · ISO 9001 | St. Louis, MO | BendingLaserWelding | ISO 9001 |
| Custom Tooling Co Milling, Turning | Cincinnati, OH | MillingTurning | - |
| Dynamic Sheetmetal Fabrication, LLC Bending, Welding · ISO 9001 | St Paul, MN | BendingWelding | ISO 9001 |
| GC Machining, Inc. Milling, Turning · ISO 9001, AS9100, ITAR | Stockton, CA | MillingTurning | ISO 9001, AS9100, ITAR |
| Great Lakes Pressed Steel Corporation Bending, Welding, Stamping | Buffalo, NY | BendingWeldingStamping | - |
| H&H Metal Fabrication Bending, Welding | St. Louis, MO | BendingWelding | - |
| Imagineering Machine Inc Milling, Turning, Casting · NADCAP | St Louis Park, MN | MillingTurningCasting | NADCAP |