| 1 | RTZ | Regional Air Services | Callsign: Aerotuzla, | RO | AVCODES |
| 2 | RTZA | RETZLAFF, BRIAN TRUCKING | | | SCAC4 |
| 3 | RTZB | ROTZ, BRUCE | | | SCAC4 |
| 4 | RTZC | R T Z TRUCKING COMPANY LLC | | | SCAC4 |
| 5 | RTZF | RETZLAFF, ARTHUR | | | SCAC3 |
| 6 | RTZF | RATZLAFF TRANSPORT | | | SCAC4 |
| 7 | RTZG | RED TAZZ EXPRESS BROKERAGE AND LOGI | | | SCAC4 |
| 8 | RTZK | RADDATZ, KEN TRUCKING | | | SCAC3 |
| 9 | RTZL | REITZ OIL COMPANY | | | SCAC4 |
| 10 | RTZN | RH TWO ZERO (RH2O) NORTH AMERICA | | | SCAC4 |
| 11 | RTZO | RITTZO TRUCKING | | | SCAC3 |
| 12 | RTZP | RITZ-TRANS CORPORATION OF PENNSYLVA | | | SCAC4 |
| 13 | RTZS | RENTZ FARM SUPPLY | | | SCAC3 |
