| Systems Powered Manufacturing, LLC Grinding, Finishing, Assembly | Saint Charles, IL | GrindingFinishingAssembly | - |
| T & D Specialties Milling, Turning, Swiss, Welding, Finishing · ISO 9001 | Oxford, MA | MillingTurningSwissWeldingFinishing | ISO 9001 |
| T & T Metals Milling, Laser, Punching, Bending, Welding, Finishing · ISO 9001 | Covina, CA | MillingLaserPunchingBendingWeldingFinishing | ISO 9001 |
| T.e.t. Mfg. Co Inc Milling, Grinding, Finishing | Middlefield, CT | MillingGrindingFinishing | - |
| T.R. Reed Enterprises Inc Milling, Turning, Finishing · ISO 9001, AS9100 | Ponder, TX | MillingTurningFinishing | ISO 9001, AS9100 |
| Tabet Manufacturing Co Inc Milling, Turning, Laser, Waterjet, Punching, Bending, Welding, Finishing, Assembly · ISO 9001, ITAR | Norfolk, VA | MillingTurningLaserWaterjetPunchingBendingWeldingFinishingAssembly | ISO 9001, ITAR |
| Tag Team Manufacturing Turning, Welding, Finishing · ISO 9001 | Parker, CO | TurningWeldingFinishing | ISO 9001 |
| Tahl Inc Milling, Turning, Welding, EDM, Grinding, Finishing · ISO 9001, ITAR, CMMC | Tucson, AZ | MillingTurningWeldingEDMGrindingFinishing | ISO 9001, ITAR, CMMC |
| Tam Metal Products Punching, Welding, Stamping, Finishing · NADCAP | Mahwah, NJ | PunchingWeldingStampingFinishing | NADCAP |
| Team Engineering Inc Laser, Waterjet, Finishing · ISO 9001 | Mesa, AZ | LaserWaterjetFinishing | ISO 9001 |
| Tec Inc Milling, Turning, Swiss, Laser, Punching, Bending, Welding, Finishing, Assembly · ISO 9001 | Frederick, MD | MillingTurningSwissLaserPunchingBendingWeldingFinishingAssembly | ISO 9001 |
| Tech Five Machining LLC Milling, Turning, Finishing · ISO 9001, AS9100, ITAR | Tempe, AZ | MillingTurningFinishing | ISO 9001, AS9100, ITAR |
| Tech Met Inc Milling, Finishing · NADCAP | Glassport, PA | MillingFinishing | NADCAP |
| Techcraft Precision Milling, Finishing · AS9100, ITAR, CMMC | Bellingham, WA | MillingFinishing | AS9100, ITAR, CMMC |
| Techmetals, Inc Grinding, Finishing · ISO 9001, AS9100, ITAR, NADCAP, ISO 13485, CMMC | Dayton, OH | GrindingFinishing | ISO 9001, AS9100, ITAR, NADCAP, ISO 13485, CMMC |
| Tek Additions LLC Finishing | Wilmington, NC | Finishing | - |
| Tel-X Corporation Milling, Turning, Laser, Welding, Stamping, EDM, Finishing · ISO 9001, IATF 16949 | Garden City, MI | MillingTurningLaserWeldingStampingEDMFinishing | ISO 9001, IATF 16949 |
| Texarkana Machine Inc Milling, Turning, Waterjet, Welding, Grinding, Finishing | Texarkana, TX | MillingTurningWaterjetWeldingGrindingFinishing | - |
| The Bennu Group Inc Milling, Turning, Waterjet, Welding, Finishing · ISO 9001 | South Holland, IL | MillingTurningWaterjetWeldingFinishing | ISO 9001 |
| The Flinchbaugh Company, Inc Milling, Turning, Welding, EDM, Grinding, Finishing, Assembly | Manchester, PA | MillingTurningWeldingEDMGrindingFinishingAssembly | - |
| The Lindgren Group Casting, Finishing · ITAR, NADCAP, CMMC | Minneapolis, MN | CastingFinishing | ITAR, NADCAP, CMMC |
| The Part Company, LLC Milling, Laser, Punching, Bending, Stamping, Metal AM, Finishing | Acworth, GA | MillingLaserPunchingBendingStampingMetal AMFinishing | - |
| The PDI Group Welding, Finishing · ISO 9001, AS9100, ITAR, CMMC | Sparta, NJ | WeldingFinishing | ISO 9001, AS9100, ITAR, CMMC |
| The Will-Burt Company Finishing · ISO 9001 | Orrville, OH | Finishing | ISO 9001 |
| Theta Plate Inc Finishing · ISO 9001, ITAR | Albuquerque, NM | Finishing | ISO 9001, ITAR |
| Third Reef Machining and Engineering Ltd. Co Milling, Bending, Welding, Finishing | Cottonwood Heights, UT | MillingBendingWeldingFinishing | - |
| Tiger Precision Machining Milling, Turning, Welding, Finishing | Lodi, CA | MillingTurningWeldingFinishing | - |
| Titan Metal Fabricators, Inc Welding, Finishing | Northbrook, IL | WeldingFinishing | - |
| TMF Inc Milling, Turning, Welding, Finishing, Assembly · ISO 9001, AS9100, ITAR, NADCAP | Poulsbo, WA | MillingTurningWeldingFinishingAssembly | ISO 9001, AS9100, ITAR, NADCAP |
| TMS Inc Milling, Laser, Punching, Bending, Welding, Grinding, Finishing, Assembly | New Berlin, WI | MillingLaserPunchingBendingWeldingGrindingFinishingAssembly | - |
| TNT Machining LLC Milling, Turning, Grinding, Finishing | Sumas, WA | MillingTurningGrindingFinishing | - |
| Tompkins Products, Inc Milling, Welding, Grinding, Finishing · IATF 16949 | Detroit, MI | MillingWeldingGrindingFinishing | IATF 16949 |
| Toolex Corp Milling, Welding, EDM, Grinding, Finishing | Addison, IL | MillingWeldingEDMGrindingFinishing | - |
| Top Machining, Inc Milling, Turning, Welding, Finishing, Assembly · ISO 9001, AS9100, ITAR | Santa Clara, CA | MillingTurningWeldingFinishingAssembly | ISO 9001, AS9100, ITAR |
| Top Notch Machining, Inc Milling, Waterjet, Stamping, Finishing, Assembly · ISO 9001 | Gresham, OR | MillingWaterjetStampingFinishingAssembly | ISO 9001 |
| Topocut, LLC Milling, Laser, Bending, Finishing | Berthoud, CO | MillingLaserBendingFinishing | - |
| Tozli Machine Milling, Welding, Finishing · ISO 9001, ITAR, CMMC | Surprise, AZ | MillingWeldingFinishing | ISO 9001, ITAR, CMMC |
| TR Manufacturing, LLC Milling, Turning, Swiss, Laser, Waterjet, Welding, Finishing · CMMC | Garrett, IN | MillingTurningSwissLaserWaterjetWeldingFinishing | CMMC |
| Trace Technologies, LLC Milling, Finishing | Epping, NH | MillingFinishing | - |
| Tri Fab Associates, Inc Milling, Turning, Laser, Punching, Welding, Stamping, Grinding, Finishing, Assembly · ISO 9001, AS9100, ITAR, CMMC | Fremont, CA | MillingTurningLaserPunchingWeldingStampingGrindingFinishingAssembly | ISO 9001, AS9100, ITAR, CMMC |
| Tri Models Inc Milling, Turning, EDM, Finishing, Assembly | Huntington Beach, CA | MillingTurningEDMFinishingAssembly | - |
| Tri-Jet Precision Cutting Services LLC Milling, Turning, Laser, Waterjet, Welding, Finishing · ISO 9001 | Palmer, AK | MillingTurningLaserWaterjetWeldingFinishing | ISO 9001 |
| Triad Tool & Die Co Milling, Turning, Waterjet, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, AS9100, NADCAP | Somerville, NJ | MillingTurningWaterjetWeldingEDMGrindingFinishingAssembly | ISO 9001, AS9100, NADCAP |
| Tridecs Corp Milling, Swiss, EDM, Grinding, Finishing, Assembly · ISO 9001 | Hayward, CA | MillingSwissEDMGrindingFinishingAssembly | ISO 9001 |
| Trident Precision Manufacturing Inc Welding, Stamping, Finishing, Assembly · ISO 9001, AS9100, ITAR, ISO 13485 | Webster, NY | WeldingStampingFinishingAssembly | ISO 9001, AS9100, ITAR, ISO 13485 |
| Trinity Machining, LLC Milling, Turning, Bending, EDM, Grinding, Finishing · ISO 9001 | Grass Valley, CA | MillingTurningBendingEDMGrindingFinishing | ISO 9001 |
| Troupe Technologies LLC Milling, Turning, Laser, Waterjet, Punching, Welding, Finishing | Huntsville, AL | MillingTurningLaserWaterjetPunchingWeldingFinishing | - |
| Troy Innovative Instruments, Inc Milling, Turning, Swiss, Laser, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, ITAR, ISO 13485 | Middlefield, OH | MillingTurningSwissLaserWeldingEDMGrindingFinishingAssembly | ISO 9001, ITAR, ISO 13485 |
| Tru Form Precision Manufacturing Milling, Turning, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, ITAR, ISO 13485 | Plaistow, NH | MillingTurningWeldingEDMGrindingFinishingAssembly | ISO 9001, ITAR, ISO 13485 |
| True Cut Turning, Finishing | Lexington, TN | TurningFinishing | - |