| MBMcmellon Bros., Incorporated | Stratford | CT | 20–99 | ● ACTIVE |
Mears Machine CORP | Avon | IN | — | ● ACTIVE |
| MTMeggitt Troy INC | Troy | IN | 20–99 | ● ACTIVE |
Metro Machine Works INC | Romulus | MI | — | ● ACTIVE |
| MTMeyer Tool, INC. | Cincinnati | OH | 500+ | ● ACTIVE |
Mn Aerospace, INC. | Suwanee | GA | — | ● ACTIVE |
| MRMt R&o LLC | Cincinnati | OH | 20–99 | ● ACTIVE |
Multax LLC | Morton | IL | — | ● ACTIVE |
Netzer Metalworks, LLC | Essex | MD | — | ● ACTIVE |
| NENew England Airfoil Products INC | Farmington | CT | 100–499 | ● ACTIVE |
| OAOrizon Aerostructures - Grove, INC | Grove | OK | — | ● ACTIVE |
| OSOverhaul Support Services, LLC | East Granby | CT | 20–99 | ● ACTIVE |
Paradigm Manchester INC. | Manchester | CT | — | ● ACTIVE |
Paramount Machine Company, INC. | Manchester | CT | — | ● ACTIVE |
| PTPas Technologies INC | Kansas City | MO | — | ● ACTIVE |
Pmd Aerospace, LLC | Santa Fe Springs | CA | — | ● ACTIVE |
Powill Manufacturing & Engineering, INC | Phoenix | AZ | — | ● ACTIVE |
| PWPratt & Whitney Autoair INC | Lansing | MI | 100–499 | ● ACTIVE |
| PWPratt & Whitney Engine Services, INC | Bridgeport | WV | 100–499 | ● ACTIVE |
| PWPratt & Whitney Psd, INC. | Springdale | AR | 100–499 | ● ACTIVE |
| PMPrecision Machine Works, INC | Tacoma | WA | 100–499 | ● ACTIVE |
| PTPrime Turbines LLC | Carrollton | TX | 20–99 | ● ACTIVE |
Prospect Mold & Die Company | Cuyahoga Falls | OH | 100–499 | ● ACTIVE |
Rockville Technology LLC | Vernon Rockville | CT | 20–99 | ● ACTIVE |
Royal Engineered Composites, INC. | Minden | NE | 100–499 | ● ACTIVE |
Safran Electronics & Defense, Avionics Usa, LLC | Irvine | CA | — | ● ACTIVE |
| SUSatair Usa, INC. | Medley | FL | — | ● ACTIVE |
| STSatellite Tool & Machine Co., INC. | South Windsor | CT | — | ● ACTIVE |
Seal Dynamics LLC | Tampa | FL | 100–499 | ● ACTIVE |
Sonic Aerospace INC. | Chandler | AZ | — | ● ACTIVE |
S & T Aircraft Accessories INC | New Braunfels | TX | — | ● ACTIVE |
Stein Seal Company | Kulpsville | PA | 100–499 | ● ACTIVE |
Tech Castings LLC | Shirley | IN | — | ● ACTIVE |
| TTTell Tool INC | Westfield | MA | 100–499 | ● ACTIVE |
| TSThermal Structures, INC | Corona | CA | 100–499 | ● ACTIVE |
| TSThe Sterling Engineering Corporation | Barkhamsted | CT | 20–99 | ● ACTIVE |
| TUThe United Tool & Die Company | West Hartford | CT | 20–99 | ● ACTIVE |
Tomco Machining, INC. | Miamisburg | OH | — | ● ACTIVE |
Toolmax Designing & Tooling, INC. | Ashford | CT | — | ● ACTIVE |
Top Flight Machine Tool LLC | Plainville | CT | — | ● ACTIVE |
Tq Machining INC | Muskegon | MI | — | ● ACTIVE |
Triumph Gear Systems - Macomb, LLC | Macomb | MI | — | ● ACTIVE |
Triumph Thermal Systems, LLC | Forest | OH | — | ● ACTIVE |
Turbineaero Engines Technics INC | Tempe | AZ | — | ● ACTIVE |
| TCTurbine Controls, LLC | Bloomfield | CT | — | ● ACTIVE |
Turbine Engine Components Technologies Corporation | Thomasville | GA | — | ● ACTIVE |
Twigg CORP | Martinsville | IN | — | ● ACTIVE |
United Avionics, INC. | Naugatuck | CT | — | ● ACTIVE |
United Precision CORP. | Chatsworth | CA | — | ● ACTIVE |
Vertechs Enterprises, INC. | El Cajon | CA | — | ● ACTIVE |