| 1 | SLE | Streamline CC | Callsign: Slipstream, | ZA | AVCODES |
| 2 | SLE | Streamline | | | ICAO1 |
| 3 | SLEB | SEATTLE-TACOMA BOX CO | | | SCAC4 |
| 4 | SLEC | SMALLEY TRUCKING CO INC | | | SCAC4 |
| 5 | SLEF | SUNLINE EXPRESS SYSTEMS, INC | | | SCAC1 |
| 6 | SLEF | SUNLINE EXPRESS SYSTEMS INC | | | SCAC4 |
| 7 | SLEH | SNOWLAND FREIGHT SERVICES INC | | | SCAC4 |
| 8 | SLEI | STAGELINE EXPRESS INC | | | SCAC4 |
| 9 | SLEM | SALEM, H R TRANSPORT LLC | | | SCAC4 |
| 10 | SLEN | SEALMASTER ALLENTOWN | | | SCAC4 |
| 11 | SLEO | STRAIGHT LINE EXPRESS INC | | | SCAC4 |
| 12 | SLER | SOUTHLAND EXPRESS INC | | | SCAC4 |
| 13 | SLES | STARLIGHT EXPRESS INC | | | SCAC4 |
| 14 | SLEU | SPINNAKER EQUIPMENT SERVICES INC. | | USA | BIC |
| 15 | SLEU | JSC SIBLENATRANS-EXPEDITION | | | SCAC4 |
| 16 | SLEV | SOUTHWEST LOGISTICS SERVICES | | | SCAC4 |
| 17 | SLEX | Short Line Enterprises, Ltd. | 1/1994-7/2005 (not listed) | | NAKINA |
| 18 | SLEX | Short Line Enterprises, Ltd. | 1/94-7/2000 | | NRHS |
| 19 | SLEX | SHORT LINE ENTERPRISES, LTD. (FILMORE & WESTERN) | | | PWRC |
| 20 | SLEX | Short Line Enterprises Limited | | | RSRV |
| 21 | SLEX | SHORT LINE ENTERPRISES, LTD. | | | SCAC4 |
