| MTMullen Testers INC | Chicopee | MA | — | ◇ UNVERIFIED |
| NKNas Keywest Fleet Readiness Center Se | Key West | FL | — | ◇ UNVERIFIED |
| NDNc Dynamics LLC | Long Beach | CA | — | ◇ UNVERIFIED |
| NONew Orleans International Airp | Kenner | LA | — | ◇ UNVERIFIED |
| NRNordam Repair Division | Tulsa | OK | — | ◇ UNVERIFIED |
| NBNorth Boeing Field Georgetown Steamplant | Seattle | WA | — | ◇ UNVERIFIED |
| NCNorthrop Corporation | Pico Rivera | CA | — | ◇ UNVERIFIED |
| NGNorthrop Grumman Air Force Plant 42 Site 8 | Palmdale | CA | — | ◇ UNVERIFIED |
| NGNorthrop Grumman CORP | Lake Charles | LA | — | ◇ UNVERIFIED |
| NGNorthrop Grumman CORP. Aircraft Div | El Segundo | CA | — | ◇ UNVERIFIED |
| NGNorthrop Grumman Corporation | Moss Point | MS | — | ◇ UNVERIFIED |
| NGNorthrop Grumman Defense Systems | Middle River | MD | — | ◇ UNVERIFIED |
| NGNorthrop Grumman Newbury Park | Newbury Park | CA | — | ◇ UNVERIFIED |
| NGNorthrop Grumman, Palmdale B500 | Palmdale | CA | — | ◇ UNVERIFIED |
| NGNorthrop Grumman Systems Corporation | Bethpage | NY | — | ◇ UNVERIFIED |
| NGNorthrop Grumman Systems Corporation | Melbourne | FL | — | ◇ UNVERIFIED |
| NGNorthrop Grumman Systems Corporation - Asbu Clearfield H5 | Clearfield | UT | — | ◇ UNVERIFIED |
| NGNorthrop Grumman Systems Corporation - Clearfield, G13 | Clearfield | UT | — | ◇ UNVERIFIED |
| NGNuttall Gear | Niagara Falls | NY | — | ◇ UNVERIFIED |
| NLNwi-wichita LLC | Wichita | KS | — | ◇ UNVERIFIED |
| NDNys Dmna - Fms #11 | Rochester | NY | — | ◇ UNVERIFIED |
| OIOmada International Sumner Division | Sumner | WA | — | ◇ UNVERIFIED |
| OOntic | Creedmoor | NC | — | ◇ UNVERIFIED |
| OPOppenheimer Precision Prod INC | Horsham | PA | — | ◇ UNVERIFIED |
| PBPalm Beach Aircraft Services INC | Lantana | FL | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP | Irvine | CA | — | ◇ UNVERIFIED |
| PAPats Aircraft, LLC | Georgetown | DE | — | ◇ UNVERIFIED |
| PAPhi Aviation LLC - Phi Lafayette Complex | Lafayette | LA | — | ◇ UNVERIFIED |
| PSPhillips Service Industries INC | Livonia | MI | — | ◇ UNVERIFIED |
| PAPort Authority Heli Maint | Teterboro | NJ | — | ◇ UNVERIFIED |
| PIPortland International Airport | Portland | OR | — | ◇ UNVERIFIED |
| PAPrecision Aero Services INC | Bolivar | MO | — | ◇ UNVERIFIED |
| PPPrecision Plating INC | Jamaica | NY | — | ◇ UNVERIFIED |
| PAPremier Air Center INC Dba West Star Aviation INC | East Alton | IL | — | ◇ UNVERIFIED |
| PAPremier Aviation Services | Vandalia | OH | — | ◇ UNVERIFIED |
| PTPti Technologies | Newbury Park | CA | — | ◇ UNVERIFIED |
| RMRed Metals Recycling | Redford | MI | — | ◇ UNVERIFIED |
| RPReed Painting CO | Seattle | WA | — | ◇ UNVERIFIED |
| RIRenishaw, INC. | Schaumburg | IL | — | ◇ UNVERIFIED |
| RBRobert Bosch Tool CORP | Watseka | IL | — | ◇ UNVERIFIED |
| RHRobinson Helicopter Company, INC. | Torrance | CA | — | ◇ UNVERIFIED |
 Rockwell Automation | Westerville | OH | — | ◇ UNVERIFIED |
| RIRohr INC Dba Goodrich Aerostructures Group | Chula Vista | CA | — | ◇ UNVERIFIED |
| RARose Aircraft Finishes | Mena | AR | — | ◇ UNVERIFIED |
| RARose Aircraft Interiors | Mena | AR | — | ◇ UNVERIFIED |
| RPRsg Products | Saginaw | TX | — | ◇ UNVERIFIED |
| SCSaint-gobain Crystals | Solon | OH | — | ◇ UNVERIFIED |
| SFSargent Fletcher INC | El Monte | CA | — | ◇ UNVERIFIED |
 Schroth Safety Products, LLC | Pompano Beach | FL | — | ◇ UNVERIFIED |
| SASchweizer Aircraft CORP | Horseheads | NY | — | ◇ UNVERIFIED |
