| 1 | SSG | Slovak Government Flying Service | Callsign: Slovak Government, | SK | AVCODES |
| 2 | SSG | Slovak Government Flying Service | | | ICAO1 |
| 3 | SSGA | SAFE AND SOUND EQUINE | | | SCAC4 |
| 4 | SSGD | SLING SHOT DELIVERY SERVICE | | | SCAC4 |
| 5 | SSGE | SUN STATE TRUCKING LLC | | | SCAC4 |
| 6 | SSGL | S & S ENERGY | | | SCAC4 |
| 7 | SSGM | SCOTT STREET GREENHOUSES LIMITED | | | SCAC4 |
| 8 | SSGN | S & S TRUCKING INC | | | SCAC4 |
| 9 | SSGO | SAIPAN SHIPPING CO INC | | | SCAC4 |
| 10 | SSGQ | SAM SAM THE DRAPERY MAN | | | SCAC4 |
| 11 | SSGS | S T S GUIDING SERVICES LTD | | | SCAC4 |
| 12 | SSGT | SCALETTA SAND & GRAVEL LTD | | | SCAC4 |
| 13 | SSGU | SURGUTNEFTEGAS PJSC | | RUS | BIC |
| 14 | SSGV | SECURITY STORAGE & VAN CO LLC | | | SCAC4 |
| 15 | SSGW | S & S TRUCKING OF CATAWBA INC | | | SCAC4 |
| 16 | SSGX | Sand Springs Home—Gasoline Dept. | 7/1930-7/1932 | | NAKINA |
| 17 | SSGX | South Soo Grain Co. | added 11/1973; 1/1975-1/1980; eliminated 5/1983 | | NAKINA |
| 18 | SSGX | McMaster Grain Co. | added 5/1983; eliminated 4/1990 | | NAKINA |
| 19 | SSGX | South Soo Grain Co. | added 11/73; 1/75-1/80; eliminated 5/83 | | NRHS |
| 20 | SSGX | McMaster Grain Co. | added 5/83; eliminated 4/90 | | NRHS |
| 21 | SSGX | *SAND SPRINGS HOME, GASOLINE DEPT. | | | PWRC |
| 22 | SSGX | *McMASTER GRAIN CO. [SOUTH SOO GRAIN CO.] | | | PWRC |
| 23 | SSGX | McMaster Grain | | | RSRV |
