| 1 | SB | Air Caledonie International | ICAO: ACI, Callsign: Air Calin, IATA Prefix: 063, ICAO designator changed from RKL | NC | AVCODES |
| 2 | SB | Air Caledonie International | ICAO: RKL, Callsign: Aircalin, ICAO designator changed to ACI. Founded in 1983 | NC | AVCODES |
| 3 | SB | Seaboard World Airlines, Inc. | ICAO: SEW, Callsign: Seaboard, Merged into Flying Tigers | USA | AVCODES |
| 4 | SB | Skagensbanen | 1924 - 2001 | DK | jernbanen.dk |
| 5 | SB | South Buffalo Ry. Co. | 1/1950-1/1994; eliminated 10/1999; 7/2000-7/2005 | | NAKINA |
| 6 | SB | South Buffalo Ry. Co. | 1/52-1/94; eliminated 10/99; 7/2000 | | NRHS |
| 7 | SB | Stadtbahn Saar GmbH | Saarbrücken | D | privat-bahn.de |
| 8 | SB | SOUTH BUFFALO RAILWAY CO. | | | PWRC |
| 9 | SB | South Buffalo Railway | | | RSRV |
| 10 | SB | SOUTH BUFFALO RAILWAY COMPANY | | | SCAC4 |
| 11 | SB | Skagensbanen | 1924 - 2001 | DK | TRAFFIC |
| 12 | SB | Stuttgarter Bahn Ltd. | | DE | VKM |
| 13 | SB&M | St. Louis, Brownsville & Mexico Ry. | 4/1938-4/1970 | | NAKINA |
| 14 | SB&M | The St. Louis, Brownsville & Mexico Ry. (Gulf Coast Lines) | 8/1920-7/1936 | | NAKINA |
| 15 | SB&M | St. Louis, Brownsville & Mexico Ry. | 4/38-4/70 | | NRHS |
| 16 | SB&M | ST. LOUIS, BROWNSVILLE & MEXICO RWY. | | | PWRC |
| 17 | SB&R | San Benito & Rio Grande Valley Ry. (Co.) | 7/1923-7/1954 | | NAKINA |
| 18 | SB&R | San Benito & Rio Grande Valley Ry. | 4/38-1/52 | | NRHS |
| 19 | SB&R | SAN BENITO & RIO GRANDE VALLEY RWY. CO. | | | PWRC |
| 20 | SBA | Sol Linhas Aereas Ltda | Callsign: Sol Brasil, | BR | AVCODES |
| 21 | SBA | STA-MALI | | | ICAO1 |
| 22 | SBA | SUBURBAN CHARTER SERVICE INC | | | SCAC4 |
| 23 | SBAB | S & B FOOD EQUIPMENT INC | | | SCAC4 |
| 24 | SBAC | SNOWBIRDS AUTO CONNECTION LIMITED | | | SCAC4 |
| 25 | SBAE | S B EXPRESS INC | | | SCAC4 |
| 26 | SBAG | Salzburg AG | City: Salzburg | A | TRAFFIC |
| 27 | SBAH | SOUND BRIDGE | | | SCAC4 |
| 28 | SBAN | Sapporo Bankei Co. Ltd. | | J | TRAFFIC |
| 29 | SBAP | SUNBELT TRANSPORT SERVICES | | | SCAC4 |
| 30 | SBAR | STACHYRUK, BARRY | | | SCAC4 |
| 31 | SBAU | SEIBOW LOGISTICS LIMITED | | | SCAC4 |
| 32 | SBAU | Schweerbau GmbH & Co.KG | | DE | VKM |
| 33 | SBAV | SSB TRUCKING INC | | | SCAC4 |
| 34 | SBAX | Southland Gasoline Co. | 7/1923 | | NAKINA |
| 35 | SBAX | SOUTHLAND GASOLINE CO. | | | PWRC |
| 36 | SBAZ | SAN BERNARDINO AREA GOVERNMENT | | | PWRC |
| 37 | SBB | Steinman Aviation, Inc. | Callsign: Sbaer Express, | USA | AVCODES |
| 38 | SBB | Skybridge International Balkan d.o.o. | Callsign: Balkan Jet, | SR | AVCODES |
| 39 | SBB | Steinman Aviation | | | ICAO1 |
| 40 | SBB | SBB-CFF | | CH | TRAFFIC |
| 41 | SBB | Schweizerische Bundesbahnen SBB | | CH | VKM |
| 42 | SBBA | SCHLUSSE | | | SCAC4 |
| 43 | SBBC | SBB Cargo | | CH | TRAFFIC |
| 44 | SBBC | Schweizerische Bundesbahnen SBB Cargo AG | | CH | VKM |
| 45 | SBBCI | SBB Cargo International | SBB Cargo International, jointly founded at the beginning of 2011 with the intermodal transport operator Hupac, operates shuttle trains on the north-south transit routes. | CH | TRAFFIC |
| 46 | SBBCI | SBB Cargo Italia S.r.L. | | IT | VKM |
| 47 | SBBE | SLIVER | | | SCAC4 |
| 48 | SBBH | SBB Historic | | CH | TRAFFIC |
| 49 | SBBI | Schweizerisches Bundesbahnen, Infrastruktur | | CH | VKM |
| 50 | SBBL | SALMON BAY BARGE LINE INC | | | SCAC4 |
| 51 | SBBN | SBB INTERNATIONAL SHIPPING LLC | | | SCAC4 |
| 52 | SBBO | SOUTH OF THE BORDER TOURS | | | SCAC4 |
| 53 | SBBS | STUBBS, EMILY J | | | SCAC4 |
| 54 | SBBW | SBS BOLT & SCREW INC | | | SCAC4 |
| 55 | SBC | Star Borne Chartering Corporation | Callsign: Starborne, | RP | AVCODES |
| 56 | SBC | Emoyeni Air Charter | | | ICAO1 |
| 57 | SBC | Ferrocarriles Nacionales de Mexico | added 10/1988; 1/1994-7/2000; eliminated 1/2002; 7/2005 | | NAKINA |
| 58 | SBC | Ferrocarril Sonora Baja California, S.A. de C.V. (transferred to Ferrocarriles Nacionales de Mexico) | eliminated 10/1988 | | NAKINA |
| 59 | SBC | Ferrocarril Sonora Baja California, S.A. de C.V. | 1/1975-1/1980 | | NAKINA |
| 60 | SBC | Ferrocarril Sonora Baja California, S.A. de C.V. | 1/75-1/80 | | NRHS |
| 61 | SBC | Ferrocarril Sonora Baja California, S.A. de C.V. (transferred to Ferrocarriles Nacionales de Mexico) | eliminated 10/88 | | NRHS |
| 62 | SBC | Ferrocarriles Nacionales de Mexico | added 10/88; 1/94-7/2000 | | NRHS |
| 63 | SBC | FERROCARRILES NACIONALES DE MEXICO (FERROCARRIL SONORA BAJA CALIFORNIA) | | | PWRC |
| 64 | SBC | Ferrocarril Sonora Baja California | | | RSRV |
| 65 | SBC | Ferrocarril Sonora Baja California, S.A. de C.V. | | MEX | TRAFFIC |
| 66 | SBCA | SUBURBAN CENTRE & AUTO | | | SCAC4 |
| 67 | SBCF | SBA CONSOLIDATORS INC | | | SCAC4 |
| 68 | SBCG | SEABRIDGE MARINE SERVICES LTD | | | SCAC4 |
| 69 | SBCM | SBC FIREMASTER LTD | | | SCAC4 |
| 70 | SBCO | SST BEARING CORPORATION | | | SCAC4 |
| 71 | SBCT | SPECIALTY BRAKE & CLUTCH | | | SCAC4 |
| 72 | SBCU | SAMI BITUMEN TECHNOLOGIES PTY. LTD. | | AUS | BIC |
| 73 | SBCU | STERMANN SPEDITION HANDEL GMBH | | | SCAC4 |
| 74 | SBCV | SOMERO BROTHERS CONCRETE CONSTRUCTI | | | SCAC4 |
| 75 | SBCX | North American Car Corp. | added 7/1968; 4/1970-1/1975; eliminated 4/1975 | | NAKINA |
| 76 | SBCX | Armour Car Lines | added 1/1960; 4/1961; eliminated 1/1963 | | NAKINA |
| 77 | SBCX | San Benito Co., Inc. | 4/1947 | | NAKINA |
| 78 | SBCX | Stokely Brothers & Co., Inc. | 1/1941-1/1946 | | NAKINA |
| 79 | SBCX | Seaboard Chemical Co. | 8/1920-7/1923 | | NAKINA |
| 80 | SBCX | Armour Car Lines | added 1/60; 4/61 | | NRHS |
| 81 | SBCX | North American Car Corp. | added 7/68; 4/70-1/75; eliminated 4/75 | | NRHS |
| 82 | SBCX | *SEABOARD CHEMICAL CO. | | | PWRC |
| 83 | SBCX | *SAN BENITO CO., INC. [STOKLEY BROTHERS & CO., INC.] | | | PWRC |
| 84 | SBCX | *NORTH AMERICAN CAR CORP. [ARMOUR CAR LINES] | | | PWRC |
| 85 | SBCY | STAND BY TRUCKING | | | SCAC4 |
| 86 | SBD | Sibia Ltd. | Callsign: Sibia, | RUS | AVCODES |
| 87 | SBD | CSX Transportation, Inc. | added 7/1987; 1/1994-7/2005 | | NAKINA |
| 88 | SBD | Seaboard System R.R., Inc. | added 1/1983; eliminated 7/1987 | | NAKINA |
| 89 | SBD | Seaboard System R.R., Inc. | added 1/83; eliminated 7/87 | | NRHS |
| 90 | SBD | CSX Transportation, Inc. | added 7/87; 1/94-7/2000 | | NRHS |
| 91 | SBD | CSX TRANSPORTATION, INC. [SEABOARD SYSTEM RR] | | | PWRC |
| 92 | SBD | Seaboard System Railroad (CSX Transportation) | | | RSRV |
| 93 | SBD | Seaboard System Railroad Inc. | | USA | TRAFFIC |
| 94 | SBD | Sächsische Bau GmbH | | DE | VKM |
| 95 | SBDA | SERVICE BY DAWN | | | SCAC4 |
| 96 | SBDB | STURBRIDGE SERVICE CENTER INC | | | SCAC4 |
| 97 | SBDF | SHAW, BUDFORD TRUCKING INC | | | SCAC4 |
| 98 | SBDG | SOUTHBOUND TRUCKING | | | SCAC4 |
| 99 | SBDH | SBD REPROGRAPHICS | | | SCAC4 |
| 100 | SBDI | SANTA BARBARA SPECIAL DELIVERY, INC | | | SCAC4 |
