| 1 | RTB | Rurtalbahn GmbH | Düren | D | privat-bahn.de |
| 2 | RTB | Rurtalbahn | former Dürener Kreisbahn | D | TRAFFIC |
| 3 | RTB | Rurtalbahn | | DE | VKM |
| 4 | RTBA | REMAL TRANSPORT LTD | | | SCAC4 |
| 5 | RTBB | RENAISSANCE TRANSPORT LTD | | | SCAC4 |
| 6 | RTBBG | Railway Tehnik Blgaria | | BG | VKM |
| 7 | RTBC | RETUBECO INC | | | SCAC4 |
| 8 | RTBC | RTB Cargo | | D | TRAFFIC |
| 9 | RTBC | Rurtalbahn Cargo GmbH | | DE | VKM |
| 10 | RTBD | RMA TRANSPORTATION SERVICES INC (IN | | | SCAC4 |
| 11 | RTBE | ROTOBEC INC | | | SCAC4 |
| 12 | RTBF | REESE TRANSPORT INC | | | SCAC4 |
| 13 | RTBI | RUBENS TRUCK BROKERAGE INC | | | SCAC4 |
| 14 | RTBO | ROCCOS | | | SCAC4 |
| 15 | RTBO | RTB Rheintal Bus | | CH | TRAFFIC |
| 16 | RTBORN | Rail Terminal Born | | NL | TRAFFIC |
| 17 | RTBQ | REBA TRANSPORT LLC | | | SCAC4 |
| 18 | RTBR | R & T BURNS INC | | | SCAC3 |
| 19 | RTBT | ROOT, BOB TRUCKING INC | | | SCAC3 |
| 20 | RTBU | RTSB GMBH | | D | BIC |
| 21 | RTBV | RUPLINGER TRUCKING, LLC | | | SCAC4 |
