| South Bend Form Tool Co Milling, Turning, EDM | South Bend, IN | MillingTurningEDM | - |
| South Austin Metals Bending, Welding | Austin, TX | BendingWelding | - |
| South Eastern Machining Inc Milling, Turning, Bending, Welding · ISO 9001 | Pelzer, SC | MillingTurningBendingWelding | ISO 9001 |
| Southeastern Machining Milling, Turning, Welding · ISO 9001 | Worthington, OH | MillingTurningWelding | ISO 9001 |
| Dynamic Machining Inc Milling, Turning | South Salt Lake, UT | MillingTurning | - |
| Engel Mfg. Milling · ISO 9001, AS9100 | South Bend, IN | Milling | ISO 9001, AS9100 |
| American Machine Tools Co. Milling, Turning, Bending | Chicago, IL | MillingTurningBending | - |
| Anaheim Precision Milling, Turning, Bending, Laser, Welding, Waterjet · ISO 9001, AS9100, NADCAP | Orange, CA | MillingTurningBendingLaserWeldingWaterjet | ISO 9001, AS9100, NADCAP |
| ARC Fabricators Bending, Welding | Sioux Falls, SD | BendingWelding | - |
| BK Customs Bending, Laser, Welding, Waterjet | Riverside, CA | BendingLaserWeldingWaterjet | - |
| Bridge City Steel Bending, Laser, Welding, Waterjet | Portland, OR | BendingLaserWeldingWaterjet | - |
| CAMM Metals, Inc. Bending, Laser, Welding, Waterjet, Metal AM | East Windsor, CT | BendingLaserWeldingWaterjetMetal AM | - |
| Continental Industries Bending, Laser, Welding | Anaheim, CA | BendingLaserWelding | - |
| Hammer MetalWerks Bending, Laser, Welding | Indianapolis, IN | BendingLaserWelding | - |
| Innovated Metal Fabrication, Inc Turning, Bending, Laser, Welding | Maplewood, MN | TurningBendingLaserWelding | - |
| Midwest Precision Inc Bending, Laser, Welding, Waterjet · ISO 9001 | Tulsa, OK | BendingLaserWeldingWaterjet | ISO 9001 |
| Premier Steel Bending, Welding | Anaheim, CA | BendingWelding | - |
| TBC Metalworks Bending, Laser, Welding | Green Bay, WI | BendingLaserWelding | - |
| Total Concept Enterprises, Inc. Milling, Turning, Bending, Welding | Fresno, CA | MillingTurningBendingWelding | - |
| United Metal Fabricators Inc Bending, Welding · ISO 9001, ITAR | Cleveland, OH | BendingWelding | ISO 9001, ITAR |
| 3Up Metal Works Bending, Welding, Waterjet | Milwaukee, WI | BendingWeldingWaterjet | - |
| 5 Point Fabrication Milling, Bending, Laser, Welding | Green Bay, WI | MillingBendingLaserWelding | - |
| 7D Manufacturing Milling, Turning, Bending, Welding | Dallas, TX | MillingTurningBendingWelding | - |
| A & D Precision Manufacturing Milling, Turning, Bending, Welding · ISO 9001, AS9100, ITAR | Anaheim, CA | MillingTurningBendingWelding | ISO 9001, AS9100, ITAR |
| A & P Fabricating Solutions, LLC Milling, Turning, Bending, Laser, Welding | Appleton, WI | MillingTurningBendingLaserWelding | - |
| ACE Machine & Metal Fab Co Milling, Turning, Bending, Welding · ISO 9001 | Nashville, TN | MillingTurningBendingWelding | ISO 9001 |
| Acosta Sheet Metal Manufacturing Bending | San Jose, CA | Bending | - |
| ACS Steel Company Milling, Turning, Bending, Welding | Tulsa, OK | MillingTurningBendingWelding | - |
| Advance Machine Technologies, Inc. Milling, Turning, Bending, Welding, Waterjet · ISO 9001 | Johnston, IA | MillingTurningBendingWeldingWaterjet | ISO 9001 |
| Advance Metal Products Bending, Welding | Los Angeles, CA | BendingWelding | - |
| Advanced Fabrication Bending, Welding, Waterjet | Bakersfield, CA | BendingWeldingWaterjet | - |
| Advanced Precision Mfg Bending, Welding · ISO 9001 | Salt Lake City, UT | BendingWelding | ISO 9001 |
| Aegis Sales & Engineering Inc. Milling, Turning, Bending, Stamping · ISO 9001 | Fort Wayne, IN | MillingTurningBendingStamping | ISO 9001 |
| Affirmative Solutions Bending, Welding | Albuquerque, NM | BendingWelding | - |
| AGF Custom Metal Concepts Turning, Bending, Laser, Welding | Dallas, TX | TurningBendingLaserWelding | - |
| Akron Steel Fabricators Inc Bending | Akron, OH | Bending | - |
| Alaskan Copper Works Bending, Welding, Waterjet | Seattle, WA | BendingWeldingWaterjet | - |
| All American Finishing LLC Milling, Bending, Welding, Stamping | Las Vegas, NV | MillingBendingWeldingStamping | - |
| All American Metal Fabrication Bending, Laser, Welding, Waterjet | Anaheim, CA | BendingLaserWeldingWaterjet | - |
| All Metals Fabrication Bending, Laser, Welding, Waterjet · ISO 9001 | Ogden, UT | BendingLaserWeldingWaterjet | ISO 9001 |
| All Precision Metals Bending, Welding | El Paso, TX | BendingWelding | - |
| All-Metal Fabricators Bending, Laser, Welding | Brook Park, OH | BendingLaserWelding | - |
| Alloy Fabricators Inc Bending, Laser, Welding, Waterjet, Stamping | Lodi, OH | BendingLaserWeldingWaterjetStamping | - |
| Alpha Machinery & Technology Co, Inc Milling, Bending, Welding · ISO 9001, AS9100 | Los Angeles, CA | MillingBendingWelding | ISO 9001, AS9100 |
| Alpine Sheet Metal Systems Bending, Welding | Dallas, TX | BendingWelding | - |
| Ameco USA Bending, Welding, Waterjet · NADCAP | Cleveland, OH | BendingWeldingWaterjet | NADCAP |
| American CNC Fabricating, Inc. Milling, Bending, Laser, Welding, Metal AM | Spokane Valley, WA | MillingBendingLaserWeldingMetal AM | - |
| Amg Engineering & Machining Milling, Turning, Bending, Welding, EDM · ISO 9001, AS9100, ITAR, IATF 16949 | Indianapolis, IN | MillingTurningBendingWeldingEDM | ISO 9001, AS9100, ITAR, IATF 16949 |
| AMS Accurate Metal Milling, Bending, Laser, Welding, Stamping · AS9100 | Richland Hills, TX | MillingBendingLaserWeldingStamping | AS9100 |
| Apex Metal Fabricating & Mach Bending, Laser, Welding | Toledo, OH | BendingLaserWelding | - |