| 1 | SPO | Aeroservicios Ejecutivos Del Pacifico, S.A. | Callsign: Ejecutiv Pacifico, | MEX | AVCODES |
| 2 | SPO | Sporavia S.L. | Callsign: Sporavia, | E | AVCODES |
| 3 | SPO | Aeroservicios Ejecutivos Del Pacifico | | | ICAO1 |
| 4 | SPOC | SHOUP OIL CO | | | SCAC4 |
| 5 | SPOI | SPEED'S OIL TOOL SERVICE, INC | | | SCAC1 |
| 6 | SPOK | SPOKANE TRANSFER AND STORAGE CO | | | SCAC1 |
| 7 | SPOL | STAR POLLUX - SPECIAL MARITIME ENTE | | | SCAC4 |
| 8 | SPOL | Siemens Sp. z o.o. | | PL | VKM |
| 9 | SPOM | SUPREM | | | SCAC4 |
| 10 | SPOO | SPOONER, MICHAEL ENTERPRISES INC | | | SCAC4 |
| 11 | SPOP | SPEAKS OIL COMPANY | | | SCAC4 |
| 12 | SPOQ | SPORTVISION | | | SCAC4 |
| 13 | SPOS | SHOW POSTERS, THE | | | SCAC4 |
| 14 | SPOT | SPOERL TRUCKING INCORPORATED | | | SCAC4 |
| 15 | SPOY | ST PIERRE OIL CO INC SOUTHBURY OIL | | | SCAC4 |
