| Creative Machining Systems Inc Milling, Turning, Welding, EDM, Grinding, Finishing | Trenton, NJ | MillingTurningWeldingEDMGrindingFinishing | - |
| Creed Monarch Milling, Turning, Grinding · ISO 9001 | New Britain, CT | MillingTurningGrinding | ISO 9001 |
| Cubitek, Inc Milling, Turning, EDM, Grinding · ISO 9001, AS9100 | Brentwood, NY | MillingTurningEDMGrinding | ISO 9001, AS9100 |
| D & D Manufacturing LLC Milling, Turning, Grinding | Ipswich, MA | MillingTurningGrinding | - |
| Daico Precision LLC Milling, Turning, Grinding, Finishing, Assembly | Garden Grove, CA | MillingTurningGrindingFinishingAssembly | - |
| Dailey's CNC Machining LLC Milling, EDM, Grinding · ISO 9001, AS9100, ITAR | Columbus, IN | MillingEDMGrinding | ISO 9001, AS9100, ITAR |
| Dalton Manufacturing Group Inc Milling, Turning, Grinding · ISO 9001, CMMC | Amesbury, MA | MillingTurningGrinding | ISO 9001, CMMC |
| Defelice Engineering, Inc Milling, Turning, Bending, Welding, Casting, Grinding | Mooresville, IN | MillingTurningBendingWeldingCastingGrinding | - |
| Delflo Industries Inc Milling, Turning, Waterjet, Bending, Welding, EDM, Grinding, Assembly · ISO 9001, AS9100, ITAR, ISO 13485, CMMC | Delray Beach, FL | MillingTurningWaterjetBendingWeldingEDMGrindingAssembly | ISO 9001, AS9100, ITAR, ISO 13485, CMMC |
| Delt Forge, Inc Milling, Turning, Welding, Forging, Grinding | Rose City, MI | MillingTurningWeldingForgingGrinding | - |
| Delta Machine Company, LLC Milling, Turning, Welding, Grinding | Harbor City, CA | MillingTurningWeldingGrinding | - |
| Desert Engineering Group Inc Milling, Turning, Stamping, Grinding | Tucson, AZ | MillingTurningStampingGrinding | - |
| Detroit Chrome, Inc Grinding, Finishing · NADCAP | Detroit, MI | GrindingFinishing | NADCAP |
| Dexter Design & Development Co Milling, Turning, EDM, Grinding, Assembly · ISO 9001 | Hillsboro, OR | MillingTurningEDMGrindingAssembly | ISO 9001 |
| Dieform LLC Turning, Punching, Bending, Grinding · ISO 9001, NADCAP | Jurupa Valley, CA | TurningPunchingBendingGrinding | ISO 9001, NADCAP |
| Dixie Rubber & Plastics Inc Milling, Waterjet, Grinding | Greenville, SC | MillingWaterjetGrinding | - |
| Duo Tec Tool Co Milling, Turning, Stamping, EDM, Grinding | Maple Grove, MN | MillingTurningStampingEDMGrinding | - |
| Duval Precision Grinding Inc Grinding, Finishing | Chicopee, MA | GrindingFinishing | - |
| Eagle Quality Components LLC Milling, Turning, Welding, Grinding, Finishing, Assembly | Tavares, FL | MillingTurningWeldingGrindingFinishingAssembly | - |
| Eckert Enterprises Ltd Milling, Turning, EDM, Grinding | Tempe, AZ | MillingTurningEDMGrinding | - |
| Eclipse Manufacturing LLC Milling, Turning, Welding, Grinding | Garfield, NJ | MillingTurningWeldingGrinding | - |
| EDM Intelligent Solutions Milling, EDM, Grinding · ISO 9001, ITAR | Bartlett, IL | MillingEDMGrinding | ISO 9001, ITAR |
| Electronic Carbide, Inc Milling, Turning, EDM, Grinding · ITAR | Grass Valley, CA | MillingTurningEDMGrinding | ITAR |
| Enhanced Technologies, Inc Milling, Turning, Stamping, Grinding | Palmyra, PA | MillingTurningStampingGrinding | - |
| Eton Machine Company Limited Milling, Turning, Swiss, Grinding, Assembly · ISO 9001 | Elgin, IL | MillingTurningSwissGrindingAssembly | ISO 9001 |
| Euro Machining Enterprise Inc Milling, Turning, Welding, Grinding, Assembly · ISO 9001 | Santa Clara, CA | MillingTurningWeldingGrindingAssembly | ISO 9001 |
| Evansville Tool & Die Inc Milling, Turning, Welding, Stamping, EDM, Grinding | Evansville, IN | MillingTurningWeldingStampingEDMGrinding | - |
| Feral Productions LLC Milling, Turning, Welding, Grinding, Finishing, Assembly | Tracy, CA | MillingTurningWeldingGrindingFinishingAssembly | - |
| FH Peterson Machine Corp Milling, Turning, Welding, Grinding · ISO 9001, ITAR | Stoughton, MA | MillingTurningWeldingGrinding | ISO 9001, ITAR |
| Fitzpatrick Manufacturing Co Milling, Turning, Grinding · ISO 9001, AS9100, ITAR, ISO 13485 | Sterling Heights, MI | MillingTurningGrinding | ISO 9001, AS9100, ITAR, ISO 13485 |
| Five Star Tool Co., Inc Milling, Turning, Swiss, EDM, Grinding | Rochester, NY | MillingTurningSwissEDMGrinding | - |
| Foxfab Laser and Machine Inc Milling, Laser, Bending, Welding, Grinding, Finishing | Layton, UT | MillingLaserBendingWeldingGrindingFinishing | - |
| Fundom Enterprises Inc Milling, Turning, EDM, Grinding | Oklahoma City, OK | MillingTurningEDMGrinding | - |
| G & G Steel Inc Milling, Turning, Welding, Grinding | Russellville, AL | MillingTurningWeldingGrinding | - |
| Gamlet Inc Milling, Laser, Bending, Welding, Stamping, Grinding, Finishing | York, PA | MillingLaserBendingWeldingStampingGrindingFinishing | - |
| GD&T Manufacturing, LLC Milling, Turning, Grinding, Finishing | Azle, TX | MillingTurningGrindingFinishing | - |
| Gear Manufacturing Inc Milling, Turning, EDM, Grinding, Assembly · ISO 9001, AS9100, ITAR | Anaheim, CA | MillingTurningEDMGrindingAssembly | ISO 9001, AS9100, ITAR |
| Gearles Designs & Manufacturing Milling, Turning, Grinding · AS9100 | Costa Mesa, CA | MillingTurningGrinding | AS9100 |
| General Industrial Repair Milling, Turning, Welding, Grinding | Montebello, CA | MillingTurningWeldingGrinding | - |
| Global Correlations Inc Milling, Turning, Grinding | Miami, FL | MillingTurningGrinding | - |
| Grace Machine Company, LLC Milling, Turning, EDM, Grinding · ISO 9001 | Berlin, CT | MillingTurningEDMGrinding | ISO 9001 |
| Great Lakes Castings Casting, Grinding · ISO 9001, IATF 16949 | Ludington, MI | CastingGrinding | ISO 9001, IATF 16949 |
| Green Specialty Services, L.L.C Milling, Turning, Laser, Welding, Grinding, Finishing · ISO 9001, AS9100 | Joshua, TX | MillingTurningLaserWeldingGrindingFinishing | ISO 9001, AS9100 |
| Grind-All Corporation Grinding · ISO 9001, AS9100, ITAR | Brunswick, OH | Grinding | ISO 9001, AS9100, ITAR |
| Habco Tool & Development Co Inc Milling, Turning, EDM, Grinding, Finishing · ISO 9001, AS9100, ITAR | Mentor, OH | MillingTurningEDMGrindingFinishing | ISO 9001, AS9100, ITAR |
| Hamblen Machine Inc Milling, Turning, EDM, Grinding | Bloomington, IN | MillingTurningEDMGrinding | - |
| Hi Tech Machining & Engineering LLC Milling, Turning, EDM, Grinding | Tucson, AZ | MillingTurningEDMGrinding | - |
| Hillside Engineering, Inc Milling, Turning, Grinding, Assembly | Danvers, MA | MillingTurningGrindingAssembly | - |
| Independence Machine & Tool LLC Milling, Turning, Grinding | Madison, IN | MillingTurningGrinding | - |
| Industrial Chrome Inc Milling, Turning, Laser, Bending, Welding, Grinding, Finishing, Assembly · ISO 9001 | Topeka, KS | MillingTurningLaserBendingWeldingGrindingFinishingAssembly | ISO 9001 |