| 1 | SGS | Saskatchewan Government Executive Air Service | Callsign: Saskatchewan, | CDN | AVCODES |
| 2 | SGS | Saskatchewan Government Executive Air Service | | | ICAO1 |
| 3 | SGS | Sonderzug Gastronomie Schuh | | DE | VKM |
| 4 | SGSC | SEGREST SEED CO | | | SCAC4 |
| 5 | SGSD | SOAP GOAT SOAP SHOP, THE | | | SCAC4 |
| 6 | SGSE | SGS EXPRESS INC | | | SCAC4 |
| 7 | SGSG | STANDARD LOGISTICS SERVICES LLC | | | SCAC4 |
| 8 | SGSH | SONGA SHIPMANAGEMENT LTD | | | SCAC4 |
| 9 | SGSK | ST THOMAS CARGO AND SHIP SERVICES I | | | SCAC4 |
| 10 | SGSL | SEAGATE SHIPPING LINES | | | SCAC1 |
| 11 | SGSL | SEAGATE STEAMSHIP LINES INC | | | SCAC4 |
| 12 | SGSN | SHERGILL & SONS | | | SCAC4 |
| 13 | SGSO | SONATRACH GAS TRANSPORTATION CORPOR | | | SCAC4 |
| 14 | SGSP | SANDIGAN SHIP SERVICES INC | | | SCAC4 |
| 15 | SGST | SLINGSHOT TRANSPORTATION INC | | | SCAC4 |
| 16 | SGSU | SOUTHERN GAS SERVICES LIMITED | | NZ | BIC |
| 17 | SGSU | SOUTHERN GAS SERVICES LIMITED | | | SCAC4 |
| 18 | SGSX | Sure-Grow Solutions, Inc. | added 10/1989; 1/1994; eliminated 10/1994 | | NAKINA |
| 19 | SGSX | Terra International, Inc. | 7/2000-7/2005 (not listed) | | NAKINA |
| 20 | SGSX | Sure-Grow Solutions, Inc. | added 10/89; 1/94; eliminated 10/94 | | NRHS |
| 21 | SGSX | Terra International, Inc. | Jul-00 | | NRHS |
| 22 | SGSX | *SURE-GROW SOLUTIONS, INC. | | | PWRC |
| 23 | SGSX | +TERRA INTERNATIONAL INCORPORATED | | | PWRC |
| 24 | SGSX | Terra International | | | RSRV |
| 25 | SGSX | TERRA INTERNATIONAL INC | | | SCAC4 |
| 26 | SGSY | SINGLE SOURCE TRANSPORTATION CO | | | SCAC4 |
