| LMLockheed Martin Corporation US VA Manassas Godwin Dr (1030) | Manassas | VA | 500+ | ◐ LIKELY ACTIVE |
| LMLockheed Martin @ Marine Hydraulics International | Norfolk | VA | — | ◐ LIKELY ACTIVE |
| LMLockheed Martin Mission Systems and Training | Riviera Beach | FL | — | ◐ LIKELY ACTIVE |
| LMLockheed Martin, Sof Glss | Fort Walton Beach | FL | — | ◐ LIKELY ACTIVE |
| LTLudlow Tool INC | Agawam | MA | — | ◐ LIKELY ACTIVE |
| LSLuminescent Sys INC | Lebanon | NH | — | ◐ LIKELY ACTIVE |
| MSMalin Space Science Systems, INC | San Diego | CA | — | ▲ REPORTED CLOSED |
| MEMalwin Electronics CORP. | Paterson | NJ | — | ◐ LIKELY ACTIVE |
| MEMartinic Engineering INC | Tolleson | AZ | 20–99 | ◐ LIKELY ACTIVE |
| MAMeggitt Aircraft Braking Systems CORP | Danville | KY | — | ◐ LIKELY ACTIVE |
| MAMeggitt Aircraft Braking Systems Corporation | Akron | OH | — | ◐ LIKELY ACTIVE |
| MAMeggitt Aircraft Braking Systems Kentucky Corporation | Danville | KY | — | ◐ LIKELY ACTIVE |
| MAMetal Arts Machine Co LLC | Wichita | KS | 20–99 | ◐ LIKELY ACTIVE |
| MAMetro Aviation INC | Shreveport | LA | — | ◐ LIKELY ACTIVE |
| MRMiddle River Aerostructure Systems | Middle River | MD | — | ◐ LIKELY ACTIVE |
| MSMission Systems Orchard Park - 10 Centre | Orchard Park | NY | 20–99 | ◐ LIKELY ACTIVE |
| MIMoog, Inc. - Salt Lake Operations | West Valley City | UT | 100–499 | ◐ LIKELY ACTIVE |
| NMNance Manufacturing | Wichita | KS | 20–99 | ◐ LIKELY ACTIVE |
| NANasco Aircraft Brake, INC. | Gardena | CA | — | ◐ LIKELY ACTIVE |
| NGNational Grid- Citizens Mgp Site Parcel 3 -bcp C224012b | Brooklyn | NY | — | ◐ LIKELY ACTIVE |
| NNNORDAM Nacelles and Thrust Reversers | Tulsa | OK | 100–499 | ◐ LIKELY ACTIVE |
| NTNORDAM Transparency | Tulsa | OK | 100–499 | ◐ LIKELY ACTIVE |
| NGNorthrop Grumman Corporation | Falls Church | VA | — | ◐ LIKELY ACTIVE |
| NGNorthrop Grumman Systems Corporation | Rolling Meadows | IL | — | ◐ LIKELY ACTIVE |
| NGNorthrop Grumman Systems Corporation | Sykesville | MD | — | ◐ LIKELY ACTIVE |
| NGNorthrop Grumman Systems Corporation | Salt Lake City | UT | — | ◐ LIKELY ACTIVE |
| NGNorthrop Grumman Systems Corporation | Azusa | CA | — | ◐ LIKELY ACTIVE |
| NGNorthrop Grumman Systems Corporation - Layton | Layton | UT | 100–499 | ◐ LIKELY ACTIVE |
| NGNorthrup Grumman Systems | Manhattan Beach | CA | — | ◐ LIKELY ACTIVE |
| NANovakinetics Aerosystems, INC. | Flagstaff | AZ | 20–99 | ◐ LIKELY ACTIVE |
| OAOhio Air National Guard 179 Airlift Group | Mansfield | OH | — | ◐ LIKELY ACTIVE |
| PPPaco Plastics & Engineering, INC. | Santa Fe Springs | CA | — | ◐ LIKELY ACTIVE |
| PHParker Hannifin Control Systems Division - Ogden | Ogden | UT | 500+ | ◐ LIKELY ACTIVE |
| PHParker Hannifin CORP | Elyria | OH | — | ◐ LIKELY ACTIVE |
| PCParker-hannifin Corporation | Irvine | CA | — | ◐ LIKELY ACTIVE |
| PCParker-hannifin Corporation | Irvine | CA | — | ◐ LIKELY ACTIVE |
| PCParker-hannifin Corporation | Hauppauge | NY | — | ◐ LIKELY ACTIVE |
| PAPcx Aerostructures LLC | Farmingdale | NY | — | ◐ LIKELY ACTIVE |
| PAPcx Aerostructures, LLC | Ronkonkoma | NY | — | ◐ LIKELY ACTIVE |
Piedmont Propulsion Systems LLC | Winston Salem | NC | — | ◐ LIKELY ACTIVE |
| PIPioneer Industries Plant 2 | Seattle | WA | 20–99 | ◐ LIKELY ACTIVE |
| PJP & J Machining Inc | Puyallup | WA | 20–99 | ◐ LIKELY ACTIVE |
| PAPlatinum Aerostructures | Nevada | MO | — | ◐ LIKELY ACTIVE |
| PWPratt & Whitney Engine Services INC | Norwood | MA | 20–99 | ◐ LIKELY ACTIVE |
| PAPrecision Aero Company I LLC | Troy | OH | — | ◐ LIKELY ACTIVE |
| PPPrecision Products | Wichita | KS | — | ◐ LIKELY ACTIVE |
| PBPrikos & Becker | Skokie | IL | 20–99 | ◐ LIKELY ACTIVE |
| PIProgressive INC | Arlington | TX | — | ◐ LIKELY ACTIVE |
| PAPvp Advanced Eo Systems, INC. | Lake Forest | CA | — | ◐ LIKELY ACTIVE |
| RARadius Aerospace - Hot Springs | Hot Springs | AR | — | ◐ LIKELY ACTIVE |