| 1 | SYN | Syncrude Canada Ltd. | Callsign: Syncrude, | CDN | AVCODES |
| 2 | SYN | Syncrude Canada | | | ICAO1 |
| 3 | SYN | Syntus | | NL | VKM |
| 4 | SYNA | SYNERGY | | | SCAC4 |
| 5 | SYNB | SYNERGY LOGISTICS LLC | | | SCAC4 |
| 6 | SYNC | SYNERGY SOUTH TRANSPORT INC | | | SCAC4 |
| 7 | SYND | SNYDER, NEIL D TRUCKING | | | SCAC4 |
| 8 | SYNE | SYNERGY & COMPANY | | | SCAC4 |
| 9 | SYNF | SKYTRANS MANAGEMENT CORP | | | SCAC4 |
| 10 | SYNG | SYNERGY TRANSPORT INC | | | SCAC4 |
| 11 | SYNH | SYNCREON CANADA INC | | | SCAC4 |
| 12 | SYNI | SYNERGY LOGISTICS LLC (INTERMODAL) | | | SCAC4 |
| 13 | SYNK | SYNTEK | | | SCAC4 |
| 14 | SYNL | SHINYO NAVIGATOR LIMITED | | | SCAC4 |
| 15 | SYNM | SYNMAR INC | | | SCAC4 |
| 16 | SYNO | SYNCRO SHIPPING CO LTD | | | SCAC4 |
| 17 | SYNP | SYNDICATE TRANSPORT LTD | | | SCAC4 |
| 18 | SYNQ | SYNCHRONIZED TRANSPORTATION INC | | | SCAC4 |
| 19 | SYNR | SYNERGAS SRL | | | SCAC4 |
| 20 | SYNU | SYNERGY GASES HK LIMITED | | HK | BIC |
| 21 | SYNV | SYNERGY TRANSPORTATION SERVICES INC | | | SCAC4 |
| 22 | SYNW | SYNERSHIP LINES INTERNATIONAL LIMIT | | | SCAC4 |
