| 1 | RCM | Aircam Aviation Ltd. | Callsign: Aircam, | GB | AVCODES |
| 2 | RCM | Air Cannes Mediterranee | Callsign: Cannes Azur, | F | AVCODES |
| 3 | RCM | RCM Rail Care and Management GmbH
| | D | TRAFFIC |
| 4 | RCMA | ROAD CRUISE MULTI PORTER INC | | | SCAC4 |
| 5 | RCMC | RICHMOND TRUCKING | | | SCAC3 |
| 6 | RCMC | R C MAC | | | SCAC4 |
| 7 | RCME | RIVER CITY MOVERS LLC | | | SCAC4 |
| 8 | RCMH | RC MOBILE HOME TRANSPORTING | | | SCAC3 |
| 9 | RCMI | RC MOTOR TRANSPORT INC | | | SCAC3 |
| 10 | RCMI | RC MOTOR TRANSPORT INC | | | SCAC4 |
| 11 | RCMJ | ROBIL, M J TRUCKING COMPANY | | | SCAC4 |
| 12 | RCMK | RCM TRUCKING INC | | | SCAC3 |
| 13 | RCMK | ROCKY MOUNTAIN RECYCLING | | | SCAC4 |
| 14 | RCML | R C MOTOR LINES INC | | | PWRC |
| 15 | RCMM | ROCKY MOUNTAIN MOBILE HOME TRANSPOR | | | SCAC3 |
| 16 | RCMM | R C M MODULAIRE INC | | | SCAC4 |
| 17 | RCMN | ROCHA, MANUEL L & SONS | | | SCAC3 |
| 18 | RCMO | R C MOTORS INC | | | SCAC3 |
| 19 | RCMR | R C M R TRANSPORT INC | | | SCAC4 |
| 20 | RCMS | ROCKY MOUNTAIN SHUTTLINES INC | | | SCAC3 |
| 21 | RCMS | R & C MOTORSPORTS | | | SCAC4 |
| 22 | RCMV | RI-CO MOVING | | | SCAC3 |
| 23 | RCMX | Services Unlimited | added 1/1994; eliminated 4/2000; 7/2000-7/2005 (not listed) | | NAKINA |
| 24 | RCMX | Railroad Car Management Co., Inc. | added 4/1985; eliminated 1/1994 | | NAKINA |
| 25 | RCMX | Ringgold Coal Mining Co. | added 10/1975; eliminated 10/1977; 1/1980 | | NAKINA |
| 26 | RCMX | Red ""C"" Oil Manufacturing Co. | 8/1920-7/1923 | | NAKINA |
| 27 | RCMX | Ringgold Coal Mining Co. | Jan-80 | | NRHS |
| 28 | RCMX | Railroad Car Management Co., Inc. | added 4/85; eliminated 1/94 | | NRHS |
| 29 | RCMX | Services Unlimited | added 1/94; eliminated 4/2000; 7/2000 | | NRHS |
| 30 | RCMX | *RED "C" OIL MANUFACVTURING CO. | | | PWRC |
| 31 | RCMX | *RINGGOLD COAL MINING CO. | | | PWRC |
| 32 | RCMX | +SERVICES UNLIMITED [RAILROAD CAR MANAGEMENT CO.] | | | PWRC |
| 33 | RCMX | Services Unlimited | | | RSRV |
| 34 | RCMX | SERVICES UNLIMITED | | | SCAC4 |
| 35 | RCMZ | RAWHIDE COAL MINE | | | PWRC |
