| 1 | SAC | Sudanese Aeronautical Services Co. Ltd (Sasco Airlines) | Callsign: Sasco, | SUD | AVCODES |
| 2 | SAC | SASCO Airlines | | | ICAO1 |
| 3 | SAC | Southern Alkali Corp. | Apr-38 | | NRHS |
| 4 | SACA | SALEM CARRIERS, INC | | | SCAC1 |
| 5 | SACA | SALEM CARRIERS INC | | | SCAC4 |
| 6 | SACC | SAVOIE EXPORT LTD | | | SCAC4 |
| 7 | SACD | SERVICIOS ADUANALES CONTINENTAL SA | | | SCAC4 |
| 8 | SACE | SANCO STEEL & MFG INC | | | SCAC4 |
| 9 | SACF | SALT CREEK FREIGHTWAYS | | | PWRC |
| 10 | SACG | SAC TRANSPORT INC | | | SCAC4 |
| 11 | SACJ | SEATTLE AIR CARGO | | | SCAC4 |
| 12 | SACL | SANTA CLARA TRANSFER SERVICE, INC | | | SCAC1 |
| 13 | SACL | SANTA CLARA TRANSFER SERVICE INC | | | SCAC4 |
| 14 | SACM | SALINAS CANTU, MAURO | | | SCAC4 |
| 15 | SACN | SEOIL AGENCY CO USA INC | | | SCAC4 |
| 16 | SACQ | SACKLEY CARTAGE COMPANY, INC | | | SCAC1 |
| 17 | SACQ | SEVENTH-DAY ADVENTIST CHURCH-QUEBEC | | | SCAC4 |
| 18 | SACR | SAN ANTONIO CARRIERS CORP | | | SCAC4 |
| 19 | SACRT | Sacramento Regional Transit District | Real: RT, City: Sacramento | US-CA | TRAFFIC |
| 20 | SACU | WALLENIUS WILHELMSEN LOGISTICS AS | | N | BIC |
| 21 | SACU | WALLENIUS WILHELMSEN LINES AS | | | SCAC4 |
| 22 | SACW | SAC INC | | | SCAC4 |
| 23 | SACX | PPG Industries, Inc. | added 4/1968; 4/1970; eliminated 10/1972 | | NAKINA |
| 24 | SACX | Pittsburgh Plate Glass Co. | added 4/1961; 4/1961-10/1966; eliminated 4/1968 | | NAKINA |
| 25 | SACX | Columbia-Southern Chemical Corp. | 1/1952-10/1957; eliminated 4/1961 | | NAKINA |
| 26 | SACX | Southern Alkali Corp. | 4/1938-1/1950 | | NAKINA |
| 27 | SACX | Columbia-Southern Chemical Corp. | 1/52-10/57; eliminated 4/61 | | NRHS |
| 28 | SACX | Pittsburgh Plate Glass Co. | added 4/61; 4/61-10/66; eliminated 4/68 | | NRHS |
| 29 | SACX | PPG Industries, Inc. | added 4/68; 4/70; eliminated 10/72 | | NRHS |
| 30 | SACX | *PPG INDUSTRIES [PITTSBURGH PLATE GLASS CO.; COLUMBIA - SOUTHERN CHEMICAL CO.; SOUTHERN ALKALI CORP.] | | | PWRC |
| 31 | SACX | *SANTA CLARITA RAILWAY | | | PWRC |
| 32 | SACZ | SANTEE COOPER | | | PWRC |
