| 1 | SYM | Skymasters | Callsign: Guinea Skymaster, | GQ | AVCODES |
| 2 | SYM | Simmons Airlines Inc. d/b/a American Eagle | IATA: MQ, | USA | AVCODES |
| 3 | SYM | Sky Services Malta Ltd. | Callsign: Volo Sky, | M | AVCODES |
| 4 | SYMD | STANSBURY, MICHAEL D TRUCKING | | | SCAC4 |
| 5 | SYME | SHARD TYMES ENTERPRISES CORP | | | SCAC4 |
| 6 | SYMI | SYSTEMA | | | SCAC4 |
| 7 | SYMN | SEAWAY MARINE TRANSPORT | | | SCAC4 |
| 8 | SYMS | SMYTH MOVING & STORAGE OF CA | | | SCAC1 |
| 9 | SYMS | STEACY, MARK STABLES | | | SCAC4 |
| 10 | SYMTC | Shenyang Metro | City: Shenyang | PRC | TRAFFIC |
| 11 | SYMU | SYMCON INDUSTRIES PVT. LTD. | | IND | BIC |
| 12 | SYMY | SKAYMA | | | SCAC4 |
