| 1 | SA | South African Airways SOC Limited | ICAO: SAA, Callsign: Springbok, IATA Prefix: 083, | ZA | AVCODES |
| 2 | SA | Air Company Sirius-Aero Ltd | ICAO: CIG, Callsign: Sirius Aero, | RUS | AVCODES |
| 3 | SA | Norfolk Southern Ry. Co. (Norfolk Southern) | 7/2005 | | NAKINA |
| 4 | SA | Norfolk Southern Ry. Co. | added 1/1991; 1/1994-7/2000 | | NAKINA |
| 5 | SA | Southern Ry. System | eliminated 1/1991 | | NAKINA |
| 6 | SA | Central of Georgia R.R. Co. | 1/1975-1/1980 | | NAKINA |
| 7 | SA | Savannah & Atlanta Ry. Co. | 4/1938-4/1970 | | NAKINA |
| 8 | SA | Savannah & Atlanta Ry. Co. | 4/38-4/70 | | NRHS |
| 9 | SA | Central of Georgia R.R. Co. | 1/75-1/80 | | NRHS |
| 10 | SA | Southern Ry. System | eliminated 1/91 | | NRHS |
| 11 | SA | Norfolk Southern Ry. Co. | added 1/91; 1/94-7/2000 | | NRHS |
| 12 | SA | NORFOLK SOUTHERN [SOUTHERN; CENTRAL OF GEORGIA; SAVANNAH & ATLANTA RY] | | | PWRC |
| 13 | SA | Savannah and Atlanta Railroad (Central of Georgia Railroad) | | | RSRV |
| 14 | SA | SAVANNAH & ATLANTA RAILWAY | | | SCAC4 |
| 15 | SA | Savannah & Atlanta Ry. Co. | | USA | TRAFFIC |
| 16 | SAA | South African Airways SOC Limited | IATA: SA, Callsign: Springbok, IATA Prefix: 083, | ZA | AVCODES |
| 17 | SAA | South African Airways | IATA: SA | | ICAO1 |
| 18 | SAA | The San Antonio and Aransas Pass Ry. Co. | 7/1923 | | NAKINA |
| 19 | SAA | SAN ANTONIO & ARANSAS PASS RWY. CO. | | | PWRC |
| 20 | SAA | South African Army | | ZA | TRAFFIC |
| 21 | SAAA | SADA TRANSPORT | | | SCAC4 |
| 22 | SAAC | SANTIAGO & ASSOCIATES INC | | | SCAC4 |
| 23 | SAAE | SANDHU LOGISTIC CARRIER | | | SCAC4 |
| 24 | SAAF | SOUTHERN AREA FREIGHT EXPRESS INC | | | SCAC4 |
| 25 | SAAF | South African Air Force | | ZA | TRAFFIC |
| 26 | SAAG | SATO STEAMSHIP CO LTD | | | SCAC4 |
| 27 | SAAH | ST ANN TRANSPORTATION INC | | | SCAC4 |
| 28 | SAAI | S & A CARTAGE INC | | | SCAC4 |
| 29 | SAAL | SALITSKY ALLOYS INC | | | SCAC4 |
| 30 | SAAM | STAR CAPELLA-SPECIAL MARITIME ENTER | | | SCAC4 |
| 31 | SAAO | SUNCOAST TRANSPORT LLC | | | SCAC4 |
| 32 | SAAP | San Antonio and Aransas Pass Ry. (Southern Pacific Lines in Texas and Louisiana) | 7/1930-7/1954 | | NAKINA |
| 33 | SAAP | San Antonio and Aransas Pass Ry. | 8/1920 | | NAKINA |
| 34 | SAAP | San Antonia and Aransas Pass Ry. (Southern Pacific Lines in Texas and Louisiana) | 4/38-1/52 | | NRHS |
| 35 | SAAP | SAN ANTONIO & ARANSAS PASS RWY. CO. (SOUTHERN PACIFIC LINES IN TEXAS & LOUISIANA) | | | PWRC |
| 36 | SAAP | SACRAME | | | SCAC4 |
| 37 | SAARB | Stadtbahn Saar GmbH | City: Saarbrücken | D | TRAFFIC |
| 38 | SAARP | Saar-Post | City: Saarbrücken | D | TRAFFIC |
| 39 | SAAU | SAICON LINES FZC | | | SCAC4 |
| 40 | SAAV | SUISSE ATLANTIQUE SOCIETE DE NAVIGA | | | SCAC4 |
| 41 | SAAW | SADLER, SHAYNE ALLAN | | | SCAC4 |
| 42 | SAAY | SOUTH AFRICAN AIRWAYS | | | SCAC4 |
| 43 | SAB | SABENA | IATA: SN, Callsign: Sabena, IATA Prefix: 082, Ceased operations on 07 November 2001. Codes transferred to Delta Air Transport | B | AVCODES |
| 44 | SAB | Sky Way Air | Callsign: Sky Worker, Ceased operations. | KS | AVCODES |
| 45 | SAB | Sky Way Air | | | ICAO1 |
| 46 | SAB | Schwäbische Albbahn GmbH | Münsingen | D | privat-bahn.de |
| 47 | SAB | Skånetåg AB | 2001 - 2005 | S | svenska-lok.se |
| 48 | SAB | Skånetåg AB | 2001 - 2005 | S | TRAFFIC |
| 49 | SAB | Schwäbische Alb -Bahn e.V | | DE | VKM |
| 50 | SABB | SABBYS TRANSPORT INCORPORATED | | | SCAC4 |
| 51 | SABB | SAB Autoservizi | Real: SAB, until 1990 Società Autoferrovie Bergamo | I | TRAFFIC |
| 52 | SABC | STAR ASIA INTERNATIONAL INC | | | SCAC4 |
| 53 | SABD | SHIPPERS ASSIST | | | SCAC4 |
| 54 | SABH | SHAFFER, ALBERT TRUCKING INC | | | SCAC4 |
| 55 | SABL | SABOURIN, LPR TRANSPORT LTD | | | SCAC4 |
| 56 | SABN | SABIAN LTD | | | SCAC4 |
| 57 | SABP | SOUTHEAST-ATLANTIC BEVERAGE CORP | | | SCAC4 |
| 58 | SABR | SABOURIN, CAROLE | | | SCAC4 |
| 59 | SABS | SAN ANTONIO BROKER SERVICES INC | | | SCAC4 |
| 60 | SABT | Sabtours Touristik GmbH | City: Linz | A | TRAFFIC |
| 61 | SABU | SOLARIS CHEMTECH INDUSTRIES LTD. | | IND | BIC |
| 62 | SABU | CMB S.A. | | | SCAC3 |
| 63 | SABU | CMB S.A. | | | SCAC4 |
| 64 | SABW | S.A.F.E., South Atlantic Freight Express | | | SCAC1 |
| 65 | SABW | S A F E | | | SCAC4 |
| 66 | SABX | Harinas, S.A. de C.V. | added 1/2004; eliminated 4/2004; 7/2005 (not listed) | | NAKINA |
| 67 | SABX | Continental Can Co., Inc. | added 10/1959; 4/1961-4/1970; eliminated 4/1974 | | NAKINA |
| 68 | SABX | Continental Can Co., Inc., Southern Advance Paper Operation | added 7/1957; 10/1957; eliminated 10/1959 | | NAKINA |
| 69 | SABX | Southern Advance Bag & Paper Division of Robert Gair Co., Inc. | added 7/1955; eliminated 7/1957 | | NAKINA |
| 70 | SABX | Southern Advance Bag & Paper Co. | added 1/1954; 7/1954; eliminated 7/1955 | | NAKINA |
| 71 | SABX | Southern Advance Bag & Paper Co., Inc. | 1/1945-1/1946 | | NAKINA |
| 72 | SABX | Southern Advance Bag & Paper Co. | eliminated 7/55 | | NRHS |
| 73 | SABX | Southern Advance Bag & Paper Division of Robert Gair Co., Inc. | added 7/55 | | NRHS |
| 74 | SABX | Continental Can Co., Inc. | Oct-57 | | NRHS |
| 75 | SABX | Continental Can Co., Inc., Southern Advance Paper Operation | eliminated 10/59 | | NRHS |
| 76 | SABX | Continental Can Co., Inc. | added 10/59; 4/61-4/70; eliminated 4/74 | | NRHS |
| 77 | SABX | *CONTINENTAL CAN CO. [SOUTHERN ADVANCE BAG & PAPER CO.] | | | PWRC |
| 78 | SABX | *SHAW AIR FORCE BASE | | | PWRC |
| 79 | SABX | +HARINAS SA DE CV | | | PWRC |
| 80 | SABX | CONTINENTAL CAN CO INC | | | SCAC3 |
| 81 | SABX | HARINAS SA DE CV | | | SCAC4 |
| 82 | SAC | Sudanese Aeronautical Services Co. Ltd (Sasco Airlines) | Callsign: Sasco, | SUD | AVCODES |
| 83 | SAC | SASCO Airlines | | | ICAO1 |
| 84 | SAC | Southern Alkali Corp. | Apr-38 | | NRHS |
| 85 | SACA | SALEM CARRIERS, INC | | | SCAC1 |
| 86 | SACA | SALEM CARRIERS INC | | | SCAC4 |
| 87 | SACC | SAVOIE EXPORT LTD | | | SCAC4 |
| 88 | SACD | SERVICIOS ADUANALES CONTINENTAL SA | | | SCAC4 |
| 89 | SACE | SANCO STEEL & MFG INC | | | SCAC4 |
| 90 | SACF | SALT CREEK FREIGHTWAYS | | | PWRC |
| 91 | SACG | SAC TRANSPORT INC | | | SCAC4 |
| 92 | SACJ | SEATTLE AIR CARGO | | | SCAC4 |
| 93 | SACL | SANTA CLARA TRANSFER SERVICE, INC | | | SCAC1 |
| 94 | SACL | SANTA CLARA TRANSFER SERVICE INC | | | SCAC4 |
| 95 | SACM | SALINAS CANTU, MAURO | | | SCAC4 |
| 96 | SACN | SEOIL AGENCY CO USA INC | | | SCAC4 |
| 97 | SACQ | SACKLEY CARTAGE COMPANY, INC | | | SCAC1 |
| 98 | SACQ | SEVENTH-DAY ADVENTIST CHURCH-QUEBEC | | | SCAC4 |
| 99 | SACR | SAN ANTONIO CARRIERS CORP | | | SCAC4 |
| 100 | SACRT | Sacramento Regional Transit District | Real: RT, City: Sacramento | US-CA | TRAFFIC |
