| 1 | SGA | Air Saigon | Callsign: Air Saigon, Ceased operations. | VN | AVCODES |
| 2 | SGA | Air Saigon | | | ICAO1 |
| 3 | SGA | | | CH | TRAFFIC |
| 4 | SGAA | SPRING AIR INDUSTRIAL ACOUSTICS LTD | | | SCAC4 |
| 5 | SGAB | SIMPLY GREEN A BIOFUELS CO LLC | | | SCAC4 |
| 6 | SGAD | SONNY & G AUTOMOTIVE | | | SCAC4 |
| 7 | SGAE | SAINT GOBAIN ABRASIVOS S A DE C V | | | SCAC4 |
| 8 | SGAF | Singapore Army | | SGP | TRAFFIC |
| 9 | SGAG | SEAGULL MARITIME AGENCIES PRIVATE L | | | SCAC4 |
| 10 | SGAG | Stahl Gerlafingen AG | | CH | VKM |
| 11 | SGAH | SOLIS GARCIA, NORMA | | | SCAC4 |
| 12 | SGAI | SANDOVAL GARZA, SAN JUANA EMILIA | | | SCAC4 |
| 13 | SGAJ | STAR RGA | | | SCAC4 |
| 14 | SGAK | SHEEHAN, J E CONTRACTING CORPORATIO | | | SCAC4 |
| 15 | SGAN | ST GEORGE AUTOMOTIVE INC | | | SCAC4 |
| 16 | SGAR | SMITH GARDENS INC | | | SCAC4 |
| 17 | SGAU | MINISTERE DE LA DEFENSE (DCSID) | | F | BIC |
| 18 | SGAU | SAGA & COMPANY, LTD. | | | PWRC |
| 19 | SGAU | Saga and Limited | | | RSRV |
| 20 | SGAV | STI LOGISTICS INC | | | SCAC4 |
| 21 | SGAX | SGA Leasing Co. | added 7/1983; 1/1994-7/2005 | | NAKINA |
| 22 | SGAX | SGA Leasing Co. | 1/94-7/2000 | | NRHS |
| 23 | SGAX | SGA LEASING COMPANY | | | PWRC |
| 24 | SGAX | SGA Leasing | | | RSRV |
| 25 | SGAX | TRANSPORTATION EQUIPMENT INC | | | SCAC4 |
| 26 | SGAY | SIEGEL OIL COMPANY | | | SCAC4 |
