| RCRaytheon Company | Colorado Springs | CO | — | ◇ UNVERIFIED |
| RSRaytheon Systems INC Waco | Dallas | TX | — | ◇ UNVERIFIED |
| RDRed Door Aviation, LLC | Virginia Beach | VA | — | ◇ UNVERIFIED |
| RARegent Aerospace Corporation | Valencia | CA | — | ◇ UNVERIFIED |
 Renmark-Pacific Corporation | Torrance | CA | — | ◇ UNVERIFIED |
| RPRenton Plant | Renton | WA | — | ◇ UNVERIFIED |
| RLRgcc, LLC | Olathe | KS | — | ◇ UNVERIFIED |
| RARiverview Aircraft | Fairmont | WV | — | ◇ UNVERIFIED |
| RIRohr Ind INC | Moreno Valley | CA | — | ◇ UNVERIFIED |
| RRRolls Royce Control Systems | West Lafayette | IN | — | ◇ UNVERIFIED |
| RRRolls Royce Corporation | Indianapolis | IN | — | ◇ UNVERIFIED |
| RCRolls-royce Corporation | Oakland | CA | — | ◇ UNVERIFIED |
| RRRolls Royce North America, Rolls Royce Center of Excellence | Stennis Space Center | MS | — | ◇ UNVERIFIED |
| RRRolls Royce Savannah Customer Service Center | Savannah | GA | — | ◇ UNVERIFIED |
| RSRolls-royce Stennis Outdoor Test Facility | Stennis Space Center | MS | — | ◇ UNVERIFIED |
| RWRolls-royce West Lafayette South | West Lafayette | IN | — | ◇ UNVERIFIED |
| RARoss Aviation - Long Beach | Long Beach | CA | — | ◇ UNVERIFIED |
| RSRotorcraft Services Group/rsg Products | Fort Worth | TX | — | ◇ UNVERIFIED |
| RSRotorcraft Support INC | Van Nuys | CA | — | ◇ UNVERIFIED |
| RDRoyalty Dream Investments LLC | Deland | FL | — | ◇ UNVERIFIED |
 Rti Remmele Engineering INC | New Brighton | MN | — | ◇ UNVERIFIED |
| RRRural Route 2, LLC | Broadview Heights | OH | — | ◇ UNVERIFIED |
| RARyder Aviall INC | Burbank | CA | — | ◇ UNVERIFIED |
| SCSafran Cabin INC. | Garden Grove | CA | — | ◇ UNVERIFIED |
| SBSan Bernardino County Sheriff's Dept Emergency Operations Division | San Bernardino | CA | — | ◇ UNVERIFIED |
| STSatellite Tool and Machine Co., INC. | South Windsor | CT | — | ◇ UNVERIFIED |
| SHSaurenman Holdings, LLC | La Verne | CA | — | ◇ UNVERIFIED |
 Scaled Composites | Mojave | CA | — | ◇ UNVERIFIED |
| Scaled Composites, LLC | Mojave | CA | — | ◇ UNVERIFIED |
| Scaled Composites, LLC | Mojave | CA | — | ◇ UNVERIFIED |
| SASchweizer Aircraft CORP | Horseheads | NY | — | ◇ UNVERIFIED |
| SCSecond Chance Air, LLC | Blackfoot | ID | — | ◇ UNVERIFIED |
| SSel-tech | Chico | CA | — | ◇ UNVERIFIED |
| SASenior Aerospace Connecticut | Enfield | CT | — | ◇ UNVERIFIED |
| SISetna IO | Chicago | IL | — | ◇ UNVERIFIED |
| SMShackelford Machine INC | Clearwater | KS | — | ◇ UNVERIFIED |
| STShell/delta Trading | Bakersfield | CA | — | ◇ UNVERIFIED |
| SAShield Aviation, INC | San Diego | CA | — | ◇ UNVERIFIED |
| SCShur-lok CORP | Irvine | CA | — | ◇ UNVERIFIED |
| SMSiemens Medical Solutions USA INC | Mountain View | CA | — | ◇ UNVERIFIED |
| SNSierra Nevada Corporation | Englewood | CO | — | ◇ UNVERIFIED |
| STSierra Technical Service INC | Tehachapi | CA | — | ◇ UNVERIFIED |
| SCSifco Custom Machining CO | Golden Valley | MN | — | ◇ UNVERIFIED |
 Signature Flight Support | Santa Clara | CA | — | ◇ UNVERIFIED |
| SASikorsky Aircraft Corporation | Jupiter | FL | — | ◇ UNVERIFIED |
| SASikorsky Aircraft Corporation | Troy | AL | — | ◇ UNVERIFIED |
| SASikorsky Aircraft Shelton Iii | Shelton | CT | — | ◇ UNVERIFIED |
| SCSikorsky Commercial Inc/heliplex Fac | Coatesville | PA | — | ◇ UNVERIFIED |
| SESjw Enterprises | Springfield | MO | — | ◇ UNVERIFIED |
 Skilled Manufacturing INC. | Traverse City | MI | — | ◇ UNVERIFIED |
