| Eastwood Machine, LLC Milling, Turning, Laser, Waterjet, Welding, EDM, Grinding, Finishing, Assembly | Santee, CA | MillingTurningLaserWaterjetWeldingEDMGrindingFinishingAssembly | - |
| Ed Dangs Machine Works Inc Milling, Turning, Welding, Grinding, Finishing | Honolulu, HI | MillingTurningWeldingGrindingFinishing | - |
| El Ironworks LLC Bending, Welding, Finishing · ISO 9001 | Toney, AL | BendingWeldingFinishing | ISO 9001 |
| Elite Welding & Fabrication LLC Bending, Welding | Galesburg, MI | BendingWelding | - |
| Elmco Two, Inc Milling, Turning, Punching, Bending, Welding | Camden, NJ | MillingTurningPunchingBendingWelding | - |
| Erie Weld Products Punching, Bending, Welding | Erie, PA | PunchingBendingWelding | - |
| Evansville Sheet Metal Works Bending, Laser, Welding, Waterjet | Evansville, IN | BendingLaserWeldingWaterjet | - |
| F3 Metalworx Precision Metal Fabrication Bending, Welding | Erie, PA | BendingWelding | - |
| Fab Worx Milling, Finishing | Mount Juliet, TN | MillingFinishing | - |
| Fabweld Co Laser, Waterjet, Bending, Welding, EDM | Kailua, HI | LaserWaterjetBendingWeldingEDM | - |
| Fetrow Industries Inc Milling, Turning, Welding, EDM, Grinding, Assembly | Columbus, NE | MillingTurningWeldingEDMGrindingAssembly | - |
| Flawless Steel Welding LLC. Turning, Bending, Welding | Denver, CO | TurningBendingWelding | - |
| Florida Machine Works Milling, Turning, Laser, Bending, Welding, Finishing, Assembly | Yulee, FL | MillingTurningLaserBendingWeldingFinishingAssembly | - |
| Fort Walton Machining Inc Milling, Turning, Waterjet, Welding, EDM, Grinding, Finishing · ITAR | Fort Walton Beach, FL | MillingTurningWaterjetWeldingEDMGrindingFinishing | ITAR |
| Foster Works LLC Laser, Punching, Bending, Welding, Stamping, Finishing | Chicago, IL | LaserPunchingBendingWeldingStampingFinishing | - |
| Fowler Industrial Plating, LLC Finishing, Assembly · ISO 9001, ITAR, NADCAP | Cleveland, TN | FinishingAssembly | ISO 9001, ITAR, NADCAP |
| Fox Worx Precision LLC Milling, Finishing · ISO 9001, ITAR | Ontario, OR | MillingFinishing | ISO 9001, ITAR |
| G & W Products, Inc Laser, Punching, Bending, Welding, Stamping, Finishing | Fairfield, OH | LaserPunchingBendingWeldingStampingFinishing | - |
| GMP Welding & Fabrication, Inc. Bending, Welding | Cincinnati, OH | BendingWelding | - |
| Godfrey & Wing, LLC Casting, Finishing · ITAR | Aurora, OH | CastingFinishing | ITAR |
| Gremlin Works LLC Milling, Turning, Finishing · ITAR | Faber, VA | MillingTurningFinishing | ITAR |
| Hallnus Works Milling, Finishing · ISO 9001, ITAR | Battle Ground, WA | MillingFinishing | ISO 9001, ITAR |
| Hammer MetalWerks Bending, Laser, Welding | Indianapolis, IN | BendingLaserWelding | - |
| Hansens Welding Inc Waterjet, Welding | Gardena, CA | WaterjetWelding | - |
| Hards Fabrication & Welding, Inc Milling, Turning, Waterjet, Bending, Welding | Seneca, PA | MillingTurningWaterjetBendingWelding | - |
| Hawkins Machine Co Inc Milling, Welding, Grinding | Coventry, RI | MillingWeldingGrinding | - |
| Heimaster Metal Works Inc Bending, Welding | Lakeside, CA | BendingWelding | - |
| Huffman Welding & Machine Inc Milling, Turning, Laser, Waterjet, Bending, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001 | Fort Madison, IA | MillingTurningLaserWaterjetBendingWeldingEDMGrindingFinishingAssembly | ISO 9001 |
| Hydrafab Northwest, Inc Laser, Bending, Welding | Spokane Valley, WA | LaserBendingWelding | - |
| IFT Worldwide Milling, Stamping, Finishing | South Bend, IN | MillingStampingFinishing | - |
| Inno-Tec Welding & Fabrication LLC Welding | Springfield, OH | Welding | - |
| Integrity Welding & Fabrication LLC Laser, Waterjet, Welding, Finishing | Colorado Springs, CO | LaserWaterjetWeldingFinishing | - |
| Irwin Automation Inc Milling, Turning, Welding, EDM, Grinding | Greensburg, PA | MillingTurningWeldingEDMGrinding | - |
| J Newell Corp Milling, Welding | Arlington, WA | MillingWelding | - |
| J W Machine & Fab LLC Milling, Turning, Welding, Grinding | Fountain Inn, SC | MillingTurningWeldingGrinding | - |
| J.W. Steel Fabricating Co. Bending, Welding | Mars, PA | BendingWelding | - |
| Jerry's Welding & Machine Welding | San Diego, CA | Welding | - |
| Jewett Machine Milling, Turning, Welding · ISO 9001 | Richmond, VA | MillingTurningWelding | ISO 9001 |
| John W. McDougall Co. Bending, Laser, Welding · ISO 9001 | Nashville, TN | BendingLaserWelding | ISO 9001 |
| JR Metal Works LLC Laser, Waterjet, Welding · ISO 9001, AS9100, ITAR | Kewaunee, WI | LaserWaterjetWelding | ISO 9001, AS9100, ITAR |
| JWP Manufacturing Milling, Swiss, EDM | Santa Clara, CA | MillingSwissEDM | - |
| K and W Tool and Machine, Inc Milling, Laser, Waterjet, Bending, Welding · ISO 9001, ITAR | Greenville, MI | MillingLaserWaterjetBendingWelding | ISO 9001, ITAR |
| KW Products, Inc Milling, Turning, Finishing · ISO 9001, AS9100 | Oldsmar, FL | MillingTurningFinishing | ISO 9001, AS9100 |
| Laserworx Mfg Laser, Bending, Welding, Stamping · AS9100, ITAR | Oxnard, CA | LaserBendingWeldingStamping | AS9100, ITAR |
| Lawrence Fabric & Metal Structures, Inc. Welding · ISO 9001 | St. Louis, MO | Welding | ISO 9001 |
| Lawruk Machine & Tool Milling, Turning, Welding, Grinding · ISO 9001 | Altoona, PA | MillingTurningWeldingGrinding | ISO 9001 |
| Lawson Precision Machining, Inc Milling, Turning, Welding, Grinding · ISO 9001 | Bucyrus, OH | MillingTurningWeldingGrinding | ISO 9001 |
| Layne West Manufacturing LLC Milling, Swiss, Welding, Grinding | Boise, ID | MillingSwissWeldingGrinding | - |
| Leanwerks, LLC Milling, Turning, Welding, Casting, Grinding, Assembly · ISO 9001, AS9100, ITAR, CMMC | Ogden, UT | MillingTurningWeldingCastingGrindingAssembly | ISO 9001, AS9100, ITAR, CMMC |
| LG Metalworks LLC Milling, Turning, Laser, Waterjet, Welding, EDM, Finishing | Bloomington, IN | MillingTurningLaserWaterjetWeldingEDMFinishing | - |