| 1 | RCS | Air Consul, S.A. | Callsign: Aeroconsul, | GQ | AVCODES |
| 2 | RCSA | RENOWN CO., S.A | | | SCAC3 |
| 3 | RCSA | RCS TRUCKING & FREIGHT INC | | | SCAC4 |
| 4 | RCSB | R C COLA-7-UP BOTTLING CO | | | SCAC3 |
| 5 | RCSC | RITE CONTAINER SERVICE CORP | | | SCAC3 |
| 6 | RCSC | RCS LOGISTICS INC | | | SCAC4 |
| 7 | RCSE | RETREAT COVE STUDIO | | | SCAC4 |
| 8 | RCSF | RCS FARMS | | | SCAC3 |
| 9 | RCSF | R C SEAFOOD LTD | | | SCAC4 |
| 10 | RCSG | ROSENBERGERS COLD TRANSPORT INC | | | SCAC3 |
| 11 | RCSG | RICO SILVA, GONZALO | | | SCAC4 |
| 12 | RCSH | REED CONTRACTING SERVICES INC | | | SCAC4 |
| 13 | RCSI | R C FREIGHTWAYS INC | | | SCAC3 |
| 14 | RCSI | RESEARCH CASTING INTERNATIONAL | | | SCAC4 |
| 15 | RCSK | RICE, STEVEN TRUCKING | | | SCAC3 |
| 16 | RCSL | RCS LIMOUSINE SERVICE INC | | | SCAC3 |
| 17 | RCSL | RCS TRANSPORTATION LLC | | | SCAC4 |
| 18 | RCSN | R C & SONS INC | | | SCAC3 |
| 19 | RCSN | RC TRANSFER INC | | | SCAC4 |
| 20 | RCSO | RICSONS INC | | | SCAC3 |
| 21 | RCSO | R C S OIL INC | | | SCAC4 |
| 22 | RCSQ | RCS VAN & STORAGE | | | SCAC3 |
| 23 | RCSQ | RIVERBANK CARGO SOLUTIONS LLC | | | SCAC4 |
| 24 | RCSR | ROCKS CRANE SERVICE INC | | | SCAC3 |
| 25 | RCST | RCS TRUCKING & LEASING CORP | | | SCAC4 |
| 26 | RCSU | RAIL CONTAINER SERVICES, INC. | | | SCAC3 |
| 27 | RCSV | RAIL CONTAINER SERVICES INC | | | SCAC3 |
| 28 | RCSX | Railroad Solutions, LLC | 7/2005 (not listed) | | NAKINA |
| 29 | RCSX | Railroad Car Service Corp. | added 4/1985; eliminated 1/1987 | | NAKINA |
| 30 | RCSX | North American Car Corp. | added 7/1960; 4/1961-4/1970; eliminated 10/1974 | | NAKINA |
| 31 | RCSX | Railway Tank Car Service, Inc. | 1/1946 (not listed); 4/1947-10/1957; eliminated 7/1960 | | NAKINA |
| 32 | RCSX | Railway Tank Car Service, Inc. | 1/52-10/57; eliminated 7/60 | | NRHS |
| 33 | RCSX | North American Car Corp. | added 7/60; 4/61-4/70; eliminated 10/74 | | NRHS |
| 34 | RCSX | Railroad Car Service Corp. | added 4/85; eliminated 1/87 | | NRHS |
| 35 | RCSX | *NORTH AMERICAN CAR CORP. [RAILWAY TANK CAR SERVICE, INC] | | | PWRC |
| 36 | RCSX | *RAILROAD CAR SERVICE CORP. | | | PWRC |
| 37 | RCSX | +RAILCAR SOLUTIONS, LLC | | | PWRC |
| 38 | RCSX | Red-Corn Scrap Metals | | | RSRV |
| 39 | RCSX | RAILCAR SOLUTIONS LLC | | | SCAC4 |
| 40 | RCSY | RELIABLE CARTAGE SERVICES | | | SCAC4 |
| 41 | RCSZ | RAIL CONTAINER SERVICES, INC. | | | PWRC |
| 42 | RCSZ | Rail Container Services | | | RSRV |
| 43 | RCSZ | RAIL CONTAINER SERVICES INC | | | SCAC4 |
