| 1 | SZL | Airlink Swaziland | Callsign: Swazilink, | SD | AVCODES |
| 2 | SZL | Royal Eswatini National Airways Corporation | IATA: RN, Callsign: Eswatini, | SD | AVCODES |
| 3 | SZL | Swaziland Airlink | | | ICAO1 |
| 4 | SZLB | SPECIALIZED LOGISTICS & BROKERAGE L | | | SCAC4 |
| 5 | SZLC | STARZZ LOGISTICS | | | SCAC4 |
| 6 | SZLD | SAMCO ZETA LTD | | | SCAC4 |
| 7 | SZLI | SZL INC | | | SCAC4 |
| 8 | SZLU | SEACUBE CONTAINERS LLC | | USA | BIC |
| 9 | SZLU | Seacube Container Leasing | | | RSRV |
| 10 | SZLU | SEACASTLE CONTAINER LEASING | | | SCAC4 |
