| 1 | SCU | Air Scorpio | Callsign: Scorpio Univers, | BG | AVCODES |
| 2 | SCU | Spartan Education, LLC d/b/a Spartan College of Aeronautics and Technology | Callsign: Skelly, | USA | AVCODES |
| 3 | SCU | Air Scorpio | | | ICAO1 |
| 4 | SCU | RETIRED 04-22-93 ATP | | | PWRC |
| 5 | SCU | S AND J COMMUTER BUS SERVICE INC | | | SCAC4 |
| 6 | SCUA | SUCDEN AMERICAS CORPORATION | | | SCAC4 |
| 7 | SCUB | SO-CAL EXPRESS | | | SCAC4 |
| 8 | SCUC | S C K TRUCKING | | | SCAC4 |
| 9 | SCUE | STONECUTTER TRUCKING COMPANY | | | SCAC1 |
| 10 | SCUE | S C P P RIBERENA ISLAS UNIDAS S C D | | | SCAC4 |
| 11 | SCUH | SCHUMACHER TRUCKING CORPORATION | | | SCAC1 |
| 12 | SCUH | SCHUMACHE | | | SCAC4 |
| 13 | SCUI | STAR CANOPUS-SPECIAL MARITIME ENTER | | | SCAC4 |
| 14 | SCUM | SCHUMM TRANSPORT | | | SCAC4 |
| 15 | SCUN | SCULLION TRUCKING CO | | | SCAC4 |
| 16 | SCUO | SALAD COSMO USA CORP | | | SCAC4 |
| 17 | SCUQ | SOUTH COAST LOGISTICS INC | | | SCAC4 |
| 18 | SCUR | SECURED REFRIGERATED TRANSPORT INC | | | SCAC4 |
| 19 | SCUT | STRUCTURE INC | | | SCAC4 |
| 20 | SCUU | LIANYUNGANG SUPREME BUILDING PRODUC | | | SCAC4 |
| 21 | SCUV | STAT COURIER SERVICE | | | SCAC4 |
| 22 | SCUW | SUPERIOR CUT AND SEW | | | SCAC4 |
