| 1 | SGM | Sky Aircraft Service | Callsign: Sigma, | NL | AVCODES |
| 2 | SGM | Sky Aircraft Service | | | ICAO1 |
| 3 | SGMA | SMG TRANSPORT LLC | | | SCAC4 |
| 4 | SGMC | STECHSCHULTE GAS AND OIL COMPANY IN | | | SCAC4 |
| 5 | SGMD | SGM INC | | | SCAC4 |
| 6 | SGMF | SGT TWO THOUSAND (2000) MOTOR FREIG | | | SCAC4 |
| 7 | SGMG | SINGLETON MOVING & STORAGE INC | | | SCAC4 |
| 8 | SGMH | SGM & SA | | | SCAC4 |
| 9 | SGMK | STRIGHT-MACKAY LTD | | | SCAC4 |
| 10 | SGML | SLADES CARTAGE LIMITED | | | SCAC4 |
| 11 | SGMQ | SUMAS GRO MEDIA | | | SCAC4 |
| 12 | SGMS | STERLING MOTOR LINES INC | | | SCAC4 |
| 13 | SGMT | SEA GLOBE MANAGEMENT & TRADING INC | | | SCAC4 |
| 14 | SGMU | SIGMA DENIZCILIK KONT.VE.LOJ.SANT.TIC. | | TR | BIC |
| 15 | SGMU | SEATRAIN GITMO, INC. | | | SCAC4 |
| 16 | SGMV | SIMMINGER TRUCKING | | | SCAC4 |
| 17 | SGMW | SEAGULF MARINE IND INC | | | SCAC4 |
| 18 | SGMY | STERLING MATERIAL HANDLING | | | SCAC4 |
