| 1 | SCC | Seacoast Airlines, Inc. | Callsign: Sea-Coaster, | USA | AVCODES |
| 2 | SCC | Seacoast Airlines | | | ICAO1 |
| 3 | SCC | Susquehanna Coal Co. | | USA | TRAFFIC |
| 4 | SCCA | SCHINDLER CARVINGS | | | SCAC4 |
| 5 | SCCB | STONEY CREEK CABINET COMPANY | | | SCAC4 |
| 6 | SCCC | SPECIFIED COMMODITY CARRIERS INC | | | SCAC4 |
| 7 | SCCG | SCHNIDT CARTAGE INC | | | SCAC4 |
| 8 | SCCI | SLACK CHEMICAL COMPANY INC | | | SCAC4 |
| 9 | SCCL | SOUTH C & C TRUCKING LLC | | | SCAC4 |
| 10 | SCCM | SIEM CAR CARRIERS (PACIFIC) AS | | | SCAC4 |
| 11 | SCCN | SOUTHERN CROSS CARRIERS INC | | | SCAC4 |
| 12 | SCCO | SENTER CARTAGE COMPANY INC | | | SCAC4 |
| 13 | SCCON | Scandicon AB | | SE | VKM |
| 14 | SCCP | SUN FUELS INC | | | SCAC4 |
| 15 | SCCR | SURPASS CHEMICAL CO INC | | | SCAC4 |
| 16 | SCCT | SANTA CLARA COUNTY TRANSIT DISTRICT | | | PWRC |
| 17 | SCCT | SUTCO CONTRACTING LTD | | | SCAC4 |
| 18 | SCCTD | Santa Clara County Transit District | City: San Jose | US-CA | TRAFFIC |
| 19 | SCCU | SUDAN SHIPPING LINE CO LTD | | SUD | BIC |
| 20 | SCCU | CIE SCADOA | | | SCAC3 |
| 21 | SCCU | SEA CONTAINERS LTD | | | SCAC4 |
| 22 | SCCV | SCHUMM TRUCKING | | | SCAC4 |
| 23 | SCCW | SCARECROW TRANSPORTATION LLC | | | SCAC4 |
| 24 | SCCX | Shell Oil Co. | added 10/1953; 7/1954-1/1980; eliminated 1/1980 | | NAKINA |
| 25 | SCCX | Shell Oil Co. | 7/1937-4/1938 | | NAKINA |
| 26 | SCCX | Shell Oil Co., Inc. | 1/1941-1/1952; eliminated 10/1953 | | NAKINA |
| 27 | SCCX | Shell (Shell Oil Co.) | 7/1935 | | NAKINA |
| 28 | SCCX | Shell Co. of California (Shell Oil Co.) | 7/1930-7/1932 | | NAKINA |
| 29 | SCCX | Shell Co. of California | 8/1920-7/1923 | | NAKINA |
| 30 | SCCX | Shell Oil Co., Inc. | 4/38-1/52; eliminated 10/53 | | NRHS |
| 31 | SCCX | Shell Oil Co. | added 10/53; 10/57-1/80; eliminated 1/80 | | NRHS |
| 32 | SCCX | *(SOEX) SHELL OIL COMPANY | | | PWRC |
| 33 | SCCX | *SANFORD CHEMICAL CO. | | | PWRC |
| 34 | SCCX | Shell Oil | | | RSRV |
| 35 | SCCX | SHELL OIL COMPANY | | | SCAC4 |
| 36 | SCCX | Shell Oil Co. | | USA | TRAFFIC |
| 37 | SCCZ | SCHOENFELD CO. | | | PWRC |
