| 1 | RAY | Regional Air Services | Callsign: Reas, | CZ | AVCODES |
| 2 | RAY | Royale Airlines, Inc. | Callsign: Ray, ICAO callsign changed to Royale Air | USA | AVCODES |
| 3 | RAY | Royale Airlines, Inc. | Callsign: Royale Air, ICAO callsign changed from Ray | USA | AVCODES |
| 4 | RAY | Real Aeroclub de Navarra | | E | AVCODES |
| 5 | RAYA | RAYAN | | | SCAC4 |
| 6 | RAYC | RAYS TRUCKING | | | SCAC3 |
| 7 | RAYC | RAYO TRANSFER | | | SCAC4 |
| 8 | RAYF | RAY TRANSPORT INC | | | SCAC3 |
| 9 | RAYG | RAY, PAUL TRUCKING | | | SCAC4 |
| 10 | RAYH | RAYMOND, HARVEY | | | SCAC4 |
| 11 | RAYJ | RAY, JOE D | | | SCAC3 |
| 12 | RAYK | RAYTRANS TRUCKING | | | SCAC4 |
| 13 | RAYM | RAY THE MOVER OF MANCHESTER, INC | | | SCAC3 |
| 14 | RAYN | Rayonier Inc. | | USA | TRAFFIC |
| 15 | RAYP | RAY, J D COMPANY | | | SCAC3 |
| 16 | RAYQ | RAY TRUCKING COMPANY INC | | | SCAC3 |
| 17 | RAYQ | RAY-MAC INC | | | SCAC4 |
| 18 | RAYR | RAY TRANSPORT | | | SCAC4 |
| 19 | RAYS | RAYS TRANSFER | | | SCAC3 |
| 20 | RAYT | RAYS TRANSFER | | | SCAC3 |
| 21 | RAYU | KNOW HOW TRADING B.V. | | NL | BIC |
| 22 | RAYV | RAYS MOVERS | | | SCAC3 |
| 23 | RAYV | RAYS MOVERS INC | | | SCAC4 |
| 24 | RAYW | RAYS TRUCKING CO | | | SCAC3 |
| 25 | RAYX | Peck Iron & Metal Co., Inc. | added 7/1961; 7/1965-10/1966; eliminated 10/1967 | | NAKINA |
| 26 | RAYX | Peck Iron & Metal Co., Inc. | 7/65-10/66; eliminated 10/67 | | NRHS |
| 27 | RAYX | PECK IRON & METAL CO., INC. | | | PWRC |
| 28 | RAYX | PECK IRON & METAL CO INC | | | SCAC3 |
| 29 | RAYY | RAYS TRANSFER COMPANY | | | SCAC3 |
| 30 | RAYY | RAYS TRANSFER COMPANY | | | SCAC4 |
