| Electron Plating III, Inc Finishing · ITAR, NADCAP | Garden Grove, CA | Finishing | ITAR, NADCAP |
| Ella Engineering Incorporated Milling, Turning, Finishing | Elk Grove Village, IL | MillingTurningFinishing | - |
| Embee Processing LLC Welding, Finishing | Santa Ana, CA | WeldingFinishing | - |
| Enc Products, Co Milling, Finishing | Sainte Genevieve, MO | MillingFinishing | - |
| Evolution Machining, Inc Milling, Turning, Welding, EDM, Grinding, Finishing, Assembly | Logan, UT | MillingTurningWeldingEDMGrindingFinishingAssembly | - |
| Fab Worx Milling, Finishing | Mount Juliet, TN | MillingFinishing | - |
| Fabricated Components & Assemblies, Inc Milling, Turning, Laser, Waterjet, Bending, Welding, Finishing | Allegan, MI | MillingTurningLaserWaterjetBendingWeldingFinishing | - |
| Fabriweld Corp Milling, Turning, Laser, Welding, Finishing | Norwalk, OH | MillingTurningLaserWeldingFinishing | - |
| Falcon Sheet Metal, Inc Laser, Punching, Welding, Finishing | North Salt Lake, UT | LaserPunchingWeldingFinishing | - |
| Falso Industries Inc Laser, Punching, Bending, Welding, Finishing | Syracuse, NY | LaserPunchingBendingWeldingFinishing | - |
| Fasano Corp Milling, Turning, Swiss, Grinding, Finishing | Cranston, RI | MillingTurningSwissGrindingFinishing | - |
| Fathouse Fabrications Laser, Bending, Welding, Finishing | Martinsville, IN | LaserBendingWeldingFinishing | - |
| Feral Productions LLC Milling, Turning, Welding, Grinding, Finishing, Assembly | Tracy, CA | MillingTurningWeldingGrindingFinishingAssembly | - |
| Final Frontier Manufacturing Milling, Turning, Finishing · AS9100 | Arvada, CO | MillingTurningFinishing | AS9100 |
| Flatout Manufacturing, LLC Milling, Turning, Finishing | Marietta, GA | MillingTurningFinishing | - |
| Flex-Cell Precision Inc Milling, Turning, EDM, Finishing | Lancaster, PA | MillingTurningEDMFinishing | - |
| Florida Machine Works Milling, Turning, Laser, Bending, Welding, Finishing, Assembly | Yulee, FL | MillingTurningLaserBendingWeldingFinishingAssembly | - |
| Forge 41 Inc Milling, Bending, Finishing | Central Village, CT | MillingBendingFinishing | - |
| 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 | - |
| Foxfab Laser and Machine Inc Milling, Laser, Bending, Welding, Grinding, Finishing | Layton, UT | MillingLaserBendingWeldingGrindingFinishing | - |
| Freedom Manufacturing, LLC Welding, Finishing | Jacksonville, TX | WeldingFinishing | - |
| Freedom Security, LLC Waterjet, Punching, Bending, Welding, Finishing | Salt Lake City, UT | WaterjetPunchingBendingWeldingFinishing | - |
| Front Panel Express LLC Milling, Finishing | Kent, WA | MillingFinishing | - |
| Fze Manufacturing Solutions, LLC Milling, Swiss, Welding, Finishing, Assembly | North Fond Du Lac, WI | MillingSwissWeldingFinishingAssembly | - |
| G & D Machine Shop Inc Waterjet, Bending, Welding, Finishing | Hammond, LA | WaterjetBendingWeldingFinishing | - |
| G & W Products, Inc Laser, Punching, Bending, Welding, Stamping, Finishing | Fairfield, OH | LaserPunchingBendingWeldingStampingFinishing | - |
| G M J Machine Co, Inc Milling, Turning, Finishing · AS9100, ITAR | Wilmer, AL | MillingTurningFinishing | AS9100, ITAR |
| GB Fabrication Company Milling, Turning, Laser, Punching, Bending, Welding, Stamping, Grinding, Finishing, Assembly | Shiloh, OH | MillingTurningLaserPunchingBendingWeldingStampingGrindingFinishingAssembly | - |
| Genesis Precision LLC Milling, Turning, Grinding, Finishing | Phoenix, AZ | MillingTurningGrindingFinishing | - |
| GM Diecron, LLC Milling, Turning, Swiss, EDM, Finishing, Assembly · AS9100 | Griffin, GA | MillingTurningSwissEDMFinishingAssembly | AS9100 |
| GMC Precision Machine LLC Milling, Turning, Finishing | Cranbury, NJ | MillingTurningFinishing | - |
| Gnmotion LLC Milling, Turning, Finishing · ITAR | Conroe, TX | MillingTurningFinishing | ITAR |
| Godfrey & Wing, LLC Casting, Finishing · ITAR | Aurora, OH | CastingFinishing | ITAR |
| Government & Industrial Supply Inc Milling, Turning, Bending, Welding, Finishing | Pulaski, TN | MillingTurningBendingWeldingFinishing | - |
| GR Innovations LLC Laser, Finishing | Lapeer, MI | LaserFinishing | - |
| Grain Belt Supply Company, Inc Turning, Laser, Waterjet, Bending, Welding, Grinding, Finishing, Assembly | Salina, KS | TurningLaserWaterjetBendingWeldingGrindingFinishingAssembly | - |
| Green Machine Company of Rockingham LLC Milling, Laser, Bending, Welding, Finishing | Naples, FL | MillingLaserBendingWeldingFinishing | - |
| Gremlin Works LLC Milling, Turning, Finishing · ITAR | Faber, VA | MillingTurningFinishing | ITAR |
| Greyhound Precision LLC Milling, Turning, Finishing | Blackwood, NJ | MillingTurningFinishing | - |
| H. K. Metal Craft Manufacturing Corporation Stamping, Finishing | Lodi, NJ | StampingFinishing | - |
| Haig Precision Manufacturing Corp Milling, Turning, Laser, Punching, Bending, Welding, Stamping, EDM, Grinding, Finishing, Assembly | San Jose, CA | MillingTurningLaserPunchingBendingWeldingStampingEDMGrindingFinishingAssembly | - |
| Halcyon Manufacturing Inc Milling, Turning, Bending, Welding, EDM, Finishing, Assembly · ITAR | San Jose, CA | MillingTurningBendingWeldingEDMFinishingAssembly | ITAR |
| Harcon Precision Metals, Inc Milling, Turning, Laser, Waterjet, Punching, Bending, Welding, Finishing | San Diego, CA | MillingTurningLaserWaterjetPunchingBendingWeldingFinishing | - |
| Heckel Tool & Manufacturing Corp EDM, Grinding, Finishing | Eagle, WI | EDMGrindingFinishing | - |
| Helander Metal Spinning Company LLC Milling, Turning, Laser, Waterjet, Welding, Stamping, EDM, Finishing · NADCAP | Lombard, IL | MillingTurningLaserWaterjetWeldingStampingEDMFinishing | NADCAP |
| Heritage Fabrication Inc Milling, Turning, Laser, Punching, Bending, Welding, Finishing | Sedalia, MO | MillingTurningLaserPunchingBendingWeldingFinishing | - |
| High Altitude Manufacturing Global Inc Milling, Turning, Swiss, Laser, Finishing | Molalla, OR | MillingTurningSwissLaserFinishing | - |
| HNDO Precision Milling, Laser, Finishing | Santa Rosa, CA | MillingLaserFinishing | - |
| Holz Enterprises, Inc Milling, Turning, Finishing · AS9100, ITAR | Bellingham, WA | MillingTurningFinishing | AS9100, ITAR |