| M B Steel Milling, Bending, Laser, Welding, Stamping | St. Louis, MO | MillingBendingLaserWeldingStamping | - |
| Lawrence Fabric & Metal Structures, Inc. Welding · ISO 9001 | St. Louis, MO | Welding | ISO 9001 |
| State Steel of Omaha Bending, Laser | Omaha, NE | BendingLaser | - |
| Steel Creations & Fabrication, Inc. Welding | Glendale, AZ | Welding | - |
| Steel House Bending, Welding | Indianapolis, IN | BendingWelding | - |
| Steel Plate Fabricators Milling, Turning, Bending, Laser, Welding, Waterjet, Metal AM | Knoxville, TN | MillingTurningBendingLaserWeldingWaterjetMetal AM | - |
| Steel Specialties Inc. Welding | El Paso, TX | Welding | - |
| Steel Tech Fabricator Welding | Rochester, NY | Welding | - |
| Steel Valley Fabricators, LLC Milling, Bending, Welding | Braddock, PA | MillingBendingWelding | - |
| Steel Werx Bending, Welding | Santa Clara, CA | BendingWelding | - |
| Steeltron Metal Works Bending, Welding | San Antonio, TX | BendingWelding | - |
| Sterling Machine Technologies Turning, Bending, Welding | Palmyra, PA | TurningBendingWelding | - |
| Still Waters Metal Fab LLC Bending, Welding | Spokane Valley, WA | BendingWelding | - |
| Structural Steel & Plate Fab Bending, Welding | North Salt Lake, UT | BendingWelding | - |
| Coronado Steel Co Turning, Welding, Casting, Metal AM | Youngstown, OH | TurningWeldingCastingMetal AM | - |
| Custom Manufacturing Co Bending, Laser, Welding, Stamping · ISO 9001 | Dallas, TX | BendingLaserWeldingStamping | ISO 9001 |
| Master Machine, Inc Milling, Turning, Bending, Casting · ISO 9001 | Minneapolis, MN | MillingTurningBendingCasting | ISO 9001 |
| Mid America Steel Inc Milling, Bending, Welding, Casting | Fargo, ND | MillingBendingWeldingCasting | - |
| OGS Industries Turning, Bending, Laser, Welding, Stamping · ISO 9001, AS9100, ITAR, IATF 16949 | Akron, OH | TurningBendingLaserWeldingStamping | ISO 9001, AS9100, ITAR, IATF 16949 |
| Redstone Manufacturing USA Milling, Bending, Laser, Welding, Stamping, Casting · ISO 9001, AS9100, IATF 16949 | Seattle, WA | MillingBendingLaserWeldingStampingCasting | ISO 9001, AS9100, IATF 16949 |
| Toth Industries Inc Milling, Turning, Bending, Casting · ISO 9001 | Toledo, OH | MillingTurningBendingCasting | ISO 9001 |
| A-1 Steel, Inc. Welding | Sparks, NV | Welding | - |
| Acosta Sheet Metal Manufacturing Bending | San Jose, CA | Bending | - |
| ACS Steel Company Milling, Turning, Bending, Welding | Tulsa, OK | MillingTurningBendingWelding | - |
| AGF Custom Metal Concepts Turning, Bending, Laser, Welding | Dallas, TX | TurningBendingLaserWelding | - |
| Alamo City Custom Welding & Construction Welding | San Antonio, TX | Welding | - |
| AllPro Stainless Steel and Metal Fabrication Welding | Philadelphia, PA | Welding | - |
| Alpine Sheet Metal Systems Bending, Welding | Dallas, TX | BendingWelding | - |
| Amherst Stainless Fabrication, LLC Turning, Welding, Waterjet | Buffalo, NY | TurningWeldingWaterjet | - |
| Astley Precision Machine Co Milling, Turning · ISO 9001, ITAR | Irwin, PA | MillingTurning | ISO 9001, ITAR |
| Atlantic Pacific Standard Welding | Tucson, AZ | Welding | - |
| BK Customs Bending, Laser, Welding, Waterjet | Riverside, CA | BendingLaserWeldingWaterjet | - |
| Boss Metal Fabricators, Inc. Milling, Bending, Welding, Stamping | St. Louis, MO | MillingBendingWeldingStamping | - |
| Bridge City Steel Bending, Laser, Welding, Waterjet | Portland, OR | BendingLaserWeldingWaterjet | - |
| Brown Industries Inc Milling, Turning, Bending, Welding | Kansas City, MO | MillingTurningBendingWelding | - |
| Coast Metal Cutting Turning | San Jose, CA | Turning | - |
| Coast Precision Enterprises Milling, Turning · ISO 9001, AS9100, ITAR | San Diego, CA | MillingTurning | ISO 9001, AS9100, ITAR |
| Council Stainless & Sheet Metal Bending, Welding, Waterjet | Oklahoma City, OK | BendingWeldingWaterjet | - |
| Custom Engineering Co Milling, Turning, Bending, Welding · ISO 9001, ITAR, NADCAP | Erie, PA | MillingTurningBendingWelding | ISO 9001, ITAR, NADCAP |
| Custom Machine Inc Milling, Turning, EDM · ISO 9001, AS9100, ITAR, ISO 13485, NADCAP | Woburn, MA | MillingTurningEDM | ISO 9001, AS9100, ITAR, ISO 13485, NADCAP |
| Custom Metal Fabricators Milling, Bending, Laser, Welding | Richmond, VA | MillingBendingLaserWelding | - |
| Custom Metalcraft Milling, Bending, Welding | Springfield, MO | MillingBendingWelding | - |
| East Valley Precision Milling, Turning, Waterjet, EDM · ISO 9001, AS9100 | Chandler, AZ | MillingTurningWaterjetEDM | ISO 9001, AS9100 |
| Ekstensive Metal Works Welding | Houston, TX | Welding | - |
| First Quality Fabricating Inc. Bending, Laser, Welding | Dallas, TX | BendingLaserWelding | - |
| FTC Industries Milling, Turning, Welding | Arlington, TX | MillingTurningWelding | - |
| Futuristics Machine, Inc. Welding · ISO 9001 | San Diego, CA | Welding | ISO 9001 |
| GCG Industries Inc Milling, Turning · ISO 9001, AS9100, ISO 13485 | Fort Wayne, IN | MillingTurning | ISO 9001, AS9100, ISO 13485 |
| Gem State Metals Bending, Welding | Garden City, ID | BendingWelding | - |
| Heyel Custom Metal Milling, Turning, Bending, Laser, Welding, Waterjet | Raleigh, NC | MillingTurningBendingLaserWeldingWaterjet | - |