| Alu-Bra Foundry, Inc Casting · ISO 9001 | Bensenville, IL | Casting | ISO 9001 |
| American Babbitt Bearing Inc Milling, Welding, Casting · ISO 9001 | Huntington, WV | MillingWeldingCasting | ISO 9001 |
| Armstrong Mold Corp Stamping, Casting, Assembly · ISO 9001, ITAR | East Syracuse, NY | StampingCastingAssembly | ISO 9001, ITAR |
| Banks Engineering & Machine LLC Milling, Turning, Welding, Casting, Grinding · ISO 9001 | Webb City, MO | MillingTurningWeldingCastingGrinding | ISO 9001 |
| Centracore, LLC Casting · ISO 9001, IATF 16949 | Saint Clair, MI | Casting | ISO 9001, IATF 16949 |
| Innovative 3D Manufacturing LLC Casting, Metal AM · ISO 9001, ITAR, ISO 13485 | Franklin, IN | CastingMetal AM | ISO 9001, ITAR, ISO 13485 |
| Lean Industrial LLC Milling, Casting, Grinding · ISO 9001 | Eugene, OR | MillingCastingGrinding | ISO 9001 |
| Prototek Milling, Turning, Bending, Laser, Welding, Waterjet, EDM, Casting, Metal AM · ISO 9001, AS9100, ITAR, CMMC | Rancho Cordova, CA | MillingTurningBendingLaserWeldingWaterjetEDMCastingMetal AM | ISO 9001, AS9100, ITAR, CMMC |
| Tennessee Tool & Engineering Inc Welding, Casting, Assembly · ISO 9001 | Oak Ridge, TN | WeldingCastingAssembly | ISO 9001 |
| United Grinding & Machine Co Milling, Turning, Bending, Laser, Welding, Waterjet, EDM, Casting · ISO 9001 | Canton, OH | MillingTurningBendingLaserWeldingWaterjetEDMCasting | ISO 9001 |
| 4K Machining Milling, Casting, Finishing · ITAR | Elizabeth, CO | MillingCastingFinishing | ITAR |
| Bluewater Industries Inc Milling, Turning, Welding, Casting, Finishing | Moses Lake, WA | MillingTurningWeldingCastingFinishing | - |
| Godfrey & Wing, LLC Casting, Finishing · ITAR | Aurora, OH | CastingFinishing | ITAR |
| JMR Machining LLC Milling, Turning, Casting, Finishing | Athens, TX | MillingTurningCastingFinishing | - |
| Johnson Brass & Machine Foundry Inc Casting, Finishing | Saukville, WI | CastingFinishing | - |
| Kammerer Dynamics Inc Laser, Bending, Welding, Casting, Finishing, Assembly | Kendallville, IN | LaserBendingWeldingCastingFinishingAssembly | - |
| KP Manufacturing Milling, Casting, Finishing, Assembly | Spencer, IA | MillingCastingFinishingAssembly | - |
| Luke Manufacturing Co Casting, Finishing | Wadsworth, OH | CastingFinishing | - |
| Micro-Matics Inc Milling, Turning, Swiss, Casting, EDM, Grinding, Assembly | Fridley, MN | MillingTurningSwissCastingEDMGrindingAssembly | - |
| Northern Gear, LLC Casting, Finishing | Muskego, WI | CastingFinishing | - |
| Pioneer Products, Inc Milling, Turning, Casting, Grinding, Finishing, Assembly | Racine, WI | MillingTurningCastingGrindingFinishingAssembly | - |
| Princeton Tool Inc Milling, Waterjet, Casting, EDM, Grinding, Assembly · AS9100, NADCAP | Mentor, OH | MillingWaterjetCastingEDMGrindingAssembly | AS9100, NADCAP |
| Solidiform, Inc Milling, Casting, Finishing | Fort Worth, TX | MillingCastingFinishing | - |
| Standard Machine, LLC Milling, Turning, Welding, Casting, Grinding, Finishing | Cleveland, OH | MillingTurningWeldingCastingGrindingFinishing | - |
| Summit Machining Co., Ltd Milling, Turning, Welding, Stamping, Casting, Finishing | Mogadore, OH | MillingTurningWeldingStampingCastingFinishing | - |
| SX Industries, Inc Casting, Finishing | Stoughton, MA | CastingFinishing | - |
| The Lindgren Group Casting, Finishing · ITAR, NADCAP, CMMC | Minneapolis, MN | CastingFinishing | ITAR, NADCAP, CMMC |
| Vangor Engineering Corporation, the Milling, Swiss, Casting · AS9100 | Oxford, CT | MillingSwissCasting | AS9100 |
| Accu Die & Mold, Inc Milling, Turning, Welding, Casting, EDM | Stevensville, MI | MillingTurningWeldingCastingEDM | - |
| Anderson Express Inc Milling, Turning, Casting | Muskegon, MI | MillingTurningCasting | - |
| Atlas Foundry Company Inc Casting, Grinding | Marion, IN | CastingGrinding | - |
| Bedford Machine & Tool Inc Milling, Turning, Welding, Casting, Finishing | Bedford, IN | MillingTurningWeldingCastingFinishing | - |
| Bollinger Atelier Milling, Waterjet, Welding, Casting | Tempe, AZ | MillingWaterjetWeldingCasting | - |
| Bridesburg Foundry Company Casting | Whitehall, PA | Casting | - |
| Cast Technologies Inc Casting | Peoria, IL | Casting | - |
| Chicago Magnesium Casting Co Welding, Casting · AS9100, NADCAP | Blue Island, IL | WeldingCasting | AS9100, NADCAP |
| Clarksville Foundry Casting | Clarksville, TN | Casting | - |
| Clinkenbeard & Associates Inc Milling, Casting, Assembly · AS9100, ITAR | South Beloit, IL | MillingCastingAssembly | AS9100, ITAR |
| Columbus Machine Works Milling, Turning, Bending, Welding, EDM, Casting | Columbus, OH | MillingTurningBendingWeldingEDMCasting | - |
| Coronado Steel Co Turning, Welding, Casting, Metal AM | Youngstown, OH | TurningWeldingCastingMetal AM | - |
| Dominion Metallurgical Milling, Stamping, Casting, EDM, Grinding, Finishing, Assembly | Roanoke, VA | MillingStampingCastingEDMGrindingFinishingAssembly | - |
| Donsco, Inc Milling, Welding, Casting | Wrightsville, PA | MillingWeldingCasting | - |
| Dynamic Machine of Detroit Milling, Turning, Casting, Metal AM | Troy, MI | MillingTurningCastingMetal AM | - |
| E2e, Mfg LLC Milling, Casting, EDM | Fremont, CA | MillingCastingEDM | - |
| El Metals LLC Waterjet, Casting, Grinding, Finishing | Randolph, NJ | WaterjetCastingGrindingFinishing | - |
| Engineered Tooling Systems, Inc Milling, Laser, Welding, Stamping, Casting, Grinding | Grand Rapids, MI | MillingLaserWeldingStampingCastingGrinding | - |
| Erie Bronze & Aluminum Co Casting · ITAR | Erie, PA | Casting | ITAR |
| Euclid Machine Co Milling, Turning, EDM, Casting · AS9100, NADCAP | Indianapolis, IN | MillingTurningEDMCasting | AS9100, NADCAP |
| Forma Machine, LLC Milling, Casting · AS9100 | South Pittsburg, TN | MillingCasting | AS9100 |
| Fuller Group of NW Florida Milling, Turning, Casting | Crestview, FL | MillingTurningCasting | - |