| 1 | SYP | Skyplan East Africa Ltd. | Callsign: Sky Plan, | EAT | AVCODES |
| 2 | SYP | Synesis Aviation | Callsign: Synesis, | CY | AVCODES |
| 3 | SYPC | SULLEY, PATRICK M TRUCKING | | | SCAC4 |
| 4 | SYPD | SACRAMENTO-YOLO PORT DISTRICT BELT RAILROAD | | | PWRC |
| 5 | SYPE | SERVICIOS Y PRODUCTOS INDUSTRIALES | | | SCAC4 |
| 6 | SYPF | SKYTOP FUELS | | | SCAC4 |
| 7 | SYPG | SUNNY POINT LLC | | | SCAC4 |
| 8 | SYPL | SYNENERGY PARTNERS LLC | | | SCAC4 |
| 9 | SYPN | SAN REY PRODUCE INC | | | SCAC4 |
| 10 | SYPO | STYER PROPANE LLC | | | SCAC4 |
| 11 | SYPR | SYP TRUCKING LLC | | | SCAC4 |
| 12 | SYPT | SYSTEMS PLUS TRANSPORTATION INC | | | SCAC4 |
| 13 | SYPTE | South Yorkshire Passenger Transport Executive | City: Leeds | GB | TRAFFIC |
| 14 | SYPU | SAMYOUNG PURE CHEMICALS CO LTD | | ROK | BIC |
