| 1 | OSL | Sosoliso Airlines | IATA: SO, Callsign: Sosoliso, | WAN | AVCODES |
| 2 | OSL | Sosoliso Airlines | IATA: SO | | ICAO1 |
| 3 | OSL | UNION PACIFIC RAILROAD [OREGON SHORT LINE] | | | PWRC |
| 4 | OSL | Oregon Short Line (Union Pacific Railroad) | | | RSRV |
| 5 | OSL | Oregon Short Line | | USA | TRAFFIC |
| 6 | OSLA | OVERSEAS LOS ANGELES LLC | | | SCAC4 |
| 7 | OSLB | OVERSEAS LONG BEACH LLC | | | SCAC4 |
| 8 | OSLJ | Östra Södermanlands Järnväg | | SE | VKM |
| 9 | OSLK | ONE SOURCE LOGISTICS | | | SCAC4 |
| 10 | OSLL | ORIENT STAGE LINES LTD | | | SCAC3 |
| 11 | OSLL | ONE SOURCE LOGISTICS LLC | | | SCAC4 |
| 12 | OSLN | ORIENT STAR LOGIX CO LTD | | | SCAC4 |
| 13 | OSLO | | City: Oslo | N | TRAFFIC |
| 14 | OSLU | OSTERMANN TRANSPORTE GMBH | | D | BIC |
| 15 | OSLU | OCEAN STAR LINE A.D. | | | SCAC3 |
| 16 | OSLU | OCEAN STAR LINE A.D. | | | SCAC4 |
| 17 | OSLW | ORIOLE SHIPPING LLC | | | SCAC4 |
| 18 | OSLY | OYSTER SHIPPING LTD | | | SCAC4 |
