| 1 | STY | Styrian Airways GmbH | IATA: Z2, Callsign: Styrian, IATA Prefix: 536, Designator Z2 recalled by IATA | A | AVCODES |
| 2 | STY | Altius Aviation, LLC | Callsign: Altair, | USA | AVCODES |
| 3 | STY | Styrian Airways | | | ICAO1 |
| 4 | STYB | STYLINE BROKERAGE SERVICE INC | | | SCAC4 |
| 5 | STYD | STYLE CREST TRANSPORT INC | | | SCAC4 |
| 6 | STYG | SOTO TRANSFER | | | SCAC4 |
| 7 | STYH | STYLINE TRANSPORTATION INC | | | SCAC4 |
| 8 | STYI | SCHEDULED TRANSPORTATION SYSTEMS IN | | | SCAC4 |
| 9 | STYJ | SCOTT TRANSFER INC | | | SCAC4 |
| 10 | STYK | STRYKERSVILLE TRANSPORT INC | | | SCAC4 |
| 11 | STYN | STYNIK TRUCKING | | | SCAC4 |
| 12 | STYO | STYLIN INC | | | SCAC4 |
| 13 | STYP | S & T LIVESTOCK LLC | | | SCAC4 |
| 14 | STYR | STONY RUN ENTERPRISES INC | | | SCAC4 |
| 15 | STYT | STYER TRANSPORTATION CO | | | SCAC4 |
| 16 | STYV | SEDENA TRUCKING SERVICES INC | | | SCAC4 |
| 17 | STYX | STYRON LLC | | | SCAC4 |
