| 1 | SKS | Sky Service | Callsign: Sky Service, Name changed to abelog | B | AVCODES |
| 2 | SKS | abelog | Ceased operations. Name changed from Sky Service | B | AVCODES |
| 3 | SKS | Sky Link Aviation Services | | PK | AVCODES |
| 4 | SKS | Sky Service | | | ICAO1 |
| 5 | SKS | SKS Krnov, a.s. | | CZ | VKM |
| 6 | SKSA | S K S CORPORATION | | | SCAC4 |
| 7 | SKSB | SKS OBO LTD | | | SCAC4 |
| 8 | SKSC | SANKO STEAMSHIP CO LTD | | | SCAC4 |
| 9 | SKSD | STOKES SEEDS INC | | | SCAC4 |
| 10 | SKSF | STRICKLAND, SHARON FRANCES | | | SCAC4 |
| 11 | SKSG | SAMOTHRAKI SHIPPING CORP MONROVIA | | | SCAC4 |
| 12 | SKSH | SK SHIPPING EUROPE | | | SCAC4 |
| 13 | SKSI | SHARK SHIPPING LTD | | | SCAC4 |
| 14 | SKSJ | SKS TRANSPORT INC | | | SCAC4 |
| 15 | SKSK | SIMONS, KEN & SONS TRUCKING LLC | | | SCAC4 |
| 16 | SKSM | SK SHIPPING CO LTD | | | SCAC4 |
| 17 | SKSO | STICKS AND STONES MANUFACTURING INC | | | SCAC4 |
| 18 | SKSP | SKAARUP SHIPPING CORPORATION | | | SCAC4 |
| 19 | SKSQ | SKS INC | | | SCAC4 |
| 20 | SKSR | SHIKES TRANSPORT (1992) LTD | | | SCAC4 |
| 21 | SKSS | SKS TANKERS LTD | | | SCAC4 |
| 22 | SKSU | SK SHIPPING LINE LLC | | UAE | BIC |
| 23 | SKSV | SK TRANSPORTATION INC | | | SCAC4 |
