| 1 | SH | Aeris | ICAO: AIS, Callsign: France Charter, Ceased operations on 07 November 2003. | F | AVCODES |
| 2 | SH | Société Nouvelle Air Toulouse | ICAO: TLE, Callsign: Toulouse, Ceased operations | F | AVCODES |
| 3 | SH | Servicio Aereo de Honduras, S.A. (SAHSA) | ICAO: SHA, Callsign: Sierra Hotel, Desigantor SH recalled by IATA | HN | AVCODES |
| 4 | SH | FlyMe Sweden AB | ICAO: FLY, Callsign: Flybird, Founded in 2003. Commenced operations on 01 March 2004. Ceased operations on 02 March 2007. | S | AVCODES |
| 5 | SH | Sharp Aviation Pty. Ltd t/a Sharp Airlines | | AUS | AVCODES |
| 6 | SH | Sunsplash Aviation, LLC d/b/a Atlantic Airways | | VI | AVCODES |
| 7 | SH | Steelton & Highspire R.R. Co. | 1/1975; added 1/1980; 1/1980-1/1994; eliminated 10/1999; 7/2000-7/2005 | | NAKINA |
| 8 | SH | Steelton & Highspire R.R. Co. | 1/75; added 1/80; 1/80-1/94; eliminated 10/99; 7/2000 | | NRHS |
| 9 | SH | STEELTON & HIGHSPIRE RAILROAD COMPANY | | | PWRC |
| 10 | SH | Steelton and Highspire Railroad | | | RSRV |
| 11 | SH | Steelton & Highspire | | USA | TRAFFIC |
| 12 | SH | Smalspåret i Hultsfred AB | | SE | VKM |
| 13 | SHA | Servicio Aereo de Honduras, S.A. (SAHSA) | Callsign: Sierra Hotel, Desigantor SH recalled by IATA. Ceased Operations during 1993 | HN | AVCODES |
| 14 | SHA | Servicio Aereo de Honduras, S.A. (SAHSA) | IATA: SH, Callsign: Sierra Hotel, Desigantor SH recalled by IATA | HN | AVCODES |
| 15 | SHA | Shree Airlines Pvt. Ltd. | IATA: N9, Callsign: Shree-Air, Founded in 1999. | NEP | AVCODES |
| 16 | SHA | Lynx Aviation, Inc. | Callsign: Shasta, ICAO designator changed to SSX. Subsidiary of Republic Airways Holdings, Inc. | USA | AVCODES |
| 17 | SHAB | SHAPP INTERNATIONAL TRADING INC | | | SCAC4 |
| 18 | SHAD | SHADAI TRANSPORTES TERRESTRES SA DE | | | SCAC4 |
| 19 | SHAF | SHAFFER TRUCKING INC. | | | PWRC |
| 20 | SHAH | SHAUGHNESSY AND AHERN COMPANY | | | SCAC4 |
| 21 | SHAI | SHIP ART INTERNATIONAL INC | | | SCAC4 |
| 22 | SHAK | SHAKER GROUP INC | | | SCAC4 |
| 23 | SHAM | SINGING SHAMAN TRADERS | | | SCAC4 |
| 24 | SHAN | SHANAHAN MOTOR LINES | | | PWRC |
| 25 | SHAN | SHUBERT HAULING | | | SCAC4 |
| 26 | SHANG | Shanghai Metro | City: Shanghai | PRC | TRAFFIC |
| 27 | SHAP | SHAPIRO BROS INC | | | SCAC4 |
| 28 | SHAQ | SHORE LOGISTICS LLC | | | SCAC4 |
| 29 | SHAS | SHARP MANUFACTURING | | | SCAC4 |
| 30 | SHAT | SHAWMUT TRANSP CO INC | | | PWRC |
| 31 | SHAT | SHALE TRUCKING INC | | | SCAC4 |
| 32 | SHAT | Shatty Railway | | FAN | TRAFFIC |
| 33 | SHAU | SHAL SEA SHIPPING LLC | | UAE | BIC |
| 34 | SHAU | M.R. SHAH LOGISTICS PVT LTD | | | SCAC4 |
| 35 | SHAW | SHAW ENTERPRISE INC | | | SCAC4 |
| 36 | SHAX | Sherwin Alumina Co. | added 4/2002; 7/2005 | | NAKINA |
| 37 | SHAX | SHERWIN ALUMINA CO. | | | PWRC |
| 38 | SHAX | Sherwin Alumina | | | RSRV |
| 39 | SHAX | SHERWIN ALUMINA COMPANY | | | SCAC4 |
| 40 | SHAY | SCHNEIDER, HARRY TRUCKING INC | | | SCAC4 |
| 41 | SHAZ | SHAW INDUSTRIES | | | PWRC |
| 42 | SHAZ | SHAW INDUSTRIES INC | | | SCAC4 |
| 43 | SHB | Shabair | Callsign: Shabair, | ZRE | AVCODES |
| 44 | SHB | Shabair | | | ICAO1 |
| 45 | SHB | Silkeborg - Herning Banen | 1877 - 1879 | DK | jernbanen.dk |
| 46 | SHB | Schleswig Holstein Bahn GmbH | Kaltenkirchen (AKN Tochter) | D | privat-bahn.de |
| 47 | SHB | Silkeborg - Herning Banen | 1877 - 1879 | DK | TRAFFIC |
| 48 | SHB | Schleswig-Holstein Bahn | | DE | VKM |
| 49 | SHBA | SHEFFIELD OIL COMPANY INC | | | SCAC4 |
| 50 | SHBB | SHIZAR IMPORT INC | | | SCAC4 |
| 51 | SHBC | SHANNON BROS CO INC | | | SCAC4 |
| 52 | SHBD | SHARK TRUCKING INC | | | SCAC4 |
| 53 | SHBJ | SHARP, RANDY | | | SCAC4 |
| 54 | SHBL | SHI-WAY BROKERS LLC | | | SCAC4 |
| 55 | SHBO | SCHNEIDER BROS | | | SCAC4 |
| 56 | SHBT | SMITH BROSS TRANSPORT | | | SCAC4 |
| 57 | SHBW | SEAHAWK LOGITECH INC | | | SCAC4 |
| 58 | SHC | Sky Harbor Air Service, Inc. | Callsign: Sky Harbor Cheyenne, | USA | AVCODES |
| 59 | SHC | Sky Harbor Air Service | | | ICAO1 |
| 60 | SHC | STAR SHUTTLE & CHARTER | | | SCAC4 |
| 61 | SHCA | SCHIPPERS CANADA LTD | | | SCAC4 |
| 62 | SHCC | S AND H TRANSPORTATION LLC | | | SCAC4 |
| 63 | SHCD | SOUTHERN COACHES INC | | | SCAC4 |
| 64 | SHCF | SHALOM ENTERPRISES INC | | | SCAC4 |
| 65 | SHCH | SHOOTING CHRONY INC | | | SCAC4 |
| 66 | SHCI | SOUTH CENTRAL FS INC | | | SCAC4 |
| 67 | SHCK | SHINN CONSTRUCTION INC | | | SCAC4 |
| 68 | SHCL | SHELNIK TRANSPORTATION INC | | | SCAC4 |
| 69 | SHCM | STREICHS LOGISTICS LLC | | | SCAC4 |
| 70 | SHCN | SCHULTZ, C ENTERPRISES LTD | | | SCAC4 |
| 71 | SHCO | SHIPPING CONNECTIONS INC | | | SCAC4 |
| 72 | SHCP | SOUTHERN CONTAINER CORPORATION | | | SCAC4 |
| 73 | SHCR | SUNTERRA HORTICULTURE (CANADA) INC | | | SCAC4 |
| 74 | SHCT | SHEFFIELD CARTAGE INC | | | SCAC4 |
| 75 | SHCU | SHANGHAI STAR HOUSE CO . LTD | | PRC | BIC |
| 76 | SHCV | SCHERER, GENE & SONS TRUCKING INC | | | SCAC4 |
| 77 | SHCW | SEA HORSE CONTAINER LINES INC | | | SCAC4 |
| 78 | SHCY | SHIPSIDE CRATING COMPANY | | | SCAC4 |
| 79 | SHCZ | *(HCRC) RETIRED 05-30-91 ATP (2553) | | | PWRC |
| 80 | SHCZ | *SKYHAVEN COAL COMPANY | | | PWRC |
| 81 | SHD | Sahara Airlines | IATA: 6S, Founded in 1998 and started operations in September 1999. Ceased operations. Designator 6S* recalled by IATA | DZ | AVCODES |
| 82 | SHD | Sahara Airlines Limited | IATA: S2, Name changed from Sahara India Airlines Ltd. | IND | AVCODES |
| 83 | SHD | Sahara India Airlines Ltd. | IATA: S2, Name changed to Sahara Airlines Limited | IND | AVCODES |
| 84 | SHD | Sahara Airlines Limited t/a Air Sahara | IATA: S2, Name changed to Jet Lite (India) Limited. ICAO code JLL. Name changed from Sahara India Airlines Ltd. | IND | AVCODES |
| 85 | SHD | Sahara Airlines | | | ICAO1 |
| 86 | SHD | Stichting Historisch Dieselmaterieel | | NL | VKM |
| 87 | SHDC | SHEEDY DRAYAGE CO | | | SCAC4 |
| 88 | SHDD | SCHROEDER TRANSPORT SERVICES INC | | | SCAC4 |
| 89 | SHDE | SPARROWHAW | | | SCAC4 |
| 90 | SHDF | SHEPHERD, DAVID TRUCKING | | | SCAC4 |
| 91 | SHDG | SOBKOWICH, ED GREENHOUSES LTD | | | SCAC4 |
| 92 | SHDH | SHORELAND TRANSPORT INC | | | SCAC4 |
| 93 | SHDI | STANDHART, DAVID L | | | SCAC4 |
| 94 | SHDK | SHERIDAN TRUCKING & LEASING CO | | | SCAC1 |
| 95 | SHDL | SHER-DEL TRANSFER INC | | | SCAC4 |
| 96 | SHDR | SCHROUDER, TODD | | | SCAC4 |
| 97 | SHDS | SHIELD TRANSPORTATION CORPORATION | | | SCAC1 |
| 98 | SHDT | SHADE TRUCKING INC | | | SCAC4 |
| 99 | SHDV | SHORT HOP DELIVERY CORP | | | SCAC4 |
| 100 | SHDW | SHADOWENS MOVING AND STORAGE CO INC | | | SCAC4 |
