| 4301 | SHDD | SCHROEDER TRANSPORT SERVICES INC | | | SCAC4 |
| 4302 | SHDE | SPARROWHAW | | | SCAC4 |
| 4303 | SHDF | SHEPHERD, DAVID TRUCKING | | | SCAC4 |
| 4304 | SHDG | SOBKOWICH, ED GREENHOUSES LTD | | | SCAC4 |
| 4305 | SHDH | SHORELAND TRANSPORT INC | | | SCAC4 |
| 4306 | SHDI | STANDHART, DAVID L | | | SCAC4 |
| 4307 | SHDK | SHERIDAN TRUCKING & LEASING CO | | | SCAC1 |
| 4308 | SHDL | SHER-DEL TRANSFER INC | | | SCAC4 |
| 4309 | SHDR | SCHROUDER, TODD | | | SCAC4 |
| 4310 | SHDS | SHIELD TRANSPORTATION CORPORATION | | | SCAC1 |
| 4311 | SHDT | SHADE TRUCKING INC | | | SCAC4 |
| 4312 | SHDV | SHORT HOP DELIVERY CORP | | | SCAC4 |
| 4313 | SHDW | SHADOWENS MOVING AND STORAGE CO INC | | | SCAC4 |
| 4314 | SHDY | SHORT, CHARLES F TRUCKING | | | SCAC4 |
| 4315 | SHE | Shell Aircraft Ltd. | Callsign: Shell, ICAO Callsign changed to Pecten. | GB | AVCODES |
| 4316 | SHE | Shell Aircraft Ltd. | Callsign: Pecten, ICAO Callsign changed from Shell. | GB | AVCODES |
| 4317 | SHE | Shell Aircraft | | | ICAO1 |
| 4318 | SHE | Südharz-Eisenbahn | | D | TRAFFIC |
| 4319 | SHEDD | John G. Shedd aquarium | | USA | TRAFFIC |
| 4320 | SHEE | SHEARERS EXPRESS | | | SCAC4 |
| 4321 | SHEGA | Shega Trans | | AL | TRAFFIC |
| 4322 | SHEH | SHERMAN TRUCKING LLC | | | SCAC4 |
| 4323 | SHEL | SHELL OIL COMPANY | | | PWRC |
| 4324 | SHELF | Шелф ООД / Shelf OOD | | BG | VKM |
| 4325 | SHEM | S H E MARITIME SERVICES LTD | | | SCAC4 |
| 4326 | SHEN | SHENANGO, INC. | | | PWRC |
| 4327 | SHEN | SHENZHEN SENBANG INTERNATIONAL FREI | | | SCAC4 |
| 4328 | SHEO | SHEPLEY TRANSPORT CO | | | SCAC4 |
| 4329 | SHEP | SETH ENTERPRISES | | | SCAC4 |
| 4330 | SHER | *SCHERER FREIGHT LINES INC | | | PWRC |
| 4331 | SHER | *SHERRIFF, INC. | | | PWRC |
| 4332 | SHEU | SEAWAY 7 OFFSHORE CONTRACTORS B.V. | | NL | BIC |
| 4333 | SHEU | SEAWAY HEAVY LIFTING CONTRACTING LT | | | SCAC4 |
| 4334 | SHEV | SHERCO SERVICES INC | | | SCAC4 |
| 4335 | SHEW | STRAHLMANN, ERWIN | | | SCAC4 |
| 4336 | SHEY | STAR V MACHINERY LTD | | | SCAC4 |
| 4337 | SHF | Support Helicopter Force | Callsign: Vortex, | GB | AVCODES |
| 4338 | SHF | Royal Air Force | | | ICAO1 |
| 4339 | SHFB | SHENANDOAH HARDWOOD LUMBER COMPANY | | | SCAC4 |
| 4340 | SHFD | SHIRTCLIFF OIL CO | | | SCAC4 |
| 4341 | SHFE | SUNSET HUTTERIAN BRETHREN INC | | | SCAC4 |
| 4342 | SHFG | SUPERHEAT FGH TECHNOLOGIES INC | | | SCAC4 |
| 4343 | SHFJ | SCHAFER TRUCKING INC | | | SCAC4 |
| 4344 | SHFM | STONEHAVEN FARMS | | | SCAC4 |
| 4345 | SHFR | SCHUT FARMS TRANSPORTATION INC | | | SCAC4 |
| 4346 | SHFT | SUNNYHILL FARM TRUCKING LLC | | | SCAC4 |
| 4347 | SHG | Shoprite Group Ltd. | Callsign: Shop Air, | GB | AVCODES |
| 4348 | SHG | Shoprite Group | | | ICAO1 |
| 4349 | SHG | KG Gleis und Tiefbau GmbH & Co | | DE | VKM |
| 4350 | SHGD | SANCHEZ HERNANDEZ, GLORIA MARTHA | | | SCAC4 |
| 4351 | SHGF | STREMICKS HERITAGE FOODS LLC | | | SCAC4 |
| 4352 | SHGH | SPROUT HOUSE | | | SCAC4 |
| 4353 | SHGJ | SOUTH FRASER CONTAINER SERVICES (20 | | | SCAC4 |
| 4354 | SHGK | SHADY CREEK TRUCKING INC | | | SCAC4 |
| 4355 | SHGL | SCHUMAKER, GARY L | | | SCAC4 |
| 4356 | SHGM | SHAFT INC (A MISSOURI CORP) | | | SCAC4 |
| 4357 | SHGN | SHAND GALLERY INC | | | SCAC4 |
| 4358 | SHGP | STANDISH MILLING COMPANY INC | | | SCAC4 |
| 4359 | SHGR | SCHUSTER CO | | | SCAC4 |
| 4360 | SHGS | SHUGARS TRANSPORT INC | | | SCAC4 |
| 4361 | SHGT | SHERGILL TRANSPORT LTD | | | SCAC4 |
| 4362 | SHGY | SCHULTZ TRUCKING LLC | | | SCAC4 |
| 4363 | SHH | Airshare Holdings | Callsign: Airshare, Ceased operations. | GB | AVCODES |
| 4364 | SHH | Sky High Aviation Services S.A. | IATA: DO, Callsign: Sky High, Founded in 2012. | DOM | AVCODES |
| 4365 | SHH | Airshare Holdings | | | ICAO1 |
| 4366 | SHH | Städtische Häfen Hannover | Hannover | D | privat-bahn.de |
| 4367 | SHH | Städtische Häfen Hannover | | D | TRAFFIC |
| 4368 | SHH | Städtische Häfen Hannover | | DE | VKM |
| 4369 | SHHB | SUGAR HILL LOGISTICS INC | | | SCAC4 |
| 4370 | SHHF | SHANAHAN TRANSPORTATION SYSTEMS INC | | | SCAC4 |
| 4371 | SHHN | ST-HUBERT HAY & SHAVING INC | | | SCAC4 |
| 4372 | SHHQ | SOLACOM TECHNOLOGIES INC | | | SCAC4 |
| 4373 | SHHT | SHANGHAI TOPFOR LOGISTICS INTERNATI | | | SCAC4 |
| 4374 | SHHU | SLOMAN NEPTUNE SCHIFFAHRTS-AG | | | SCAC4 |
| 4375 | SHHW | SANCHEZ BROS TRANSPORT | | | SCAC4 |
| 4376 | SHI | Seoul Air International | Callsign: Seoul Air, | ROK | AVCODES |
| 4377 | SHI | Sepehran Airlines | IATA: IS, Callsign: Shirazi, | IR | AVCODES |
| 4378 | SHI | Seoul Air International | | | ICAO1 |
| 4379 | SHI | SHERIDAN-INDIANAP | | | SCAC4 |
| 4380 | SHIA | SHEROUTE INC | | | SCAC4 |
| 4381 | SHIB | SHINN, BEN TRUCKING INC | | | SCAC4 |
| 4382 | SHIC | SHICKS BOB AUTO SERVICE | | | SCAC4 |
| 4383 | SHID | SHIPPERS DISPATCH INC | | | PWRC |
| 4384 | SHID | SKY-HI INDUSTRIES LTD | | | SCAC4 |
| 4385 | SHIE | SOUTHLAND HAULING INC | | | SCAC4 |
| 4386 | SHIL | SUN HILL TRUCKING INC | | | SCAC4 |
| 4387 | SHIM | SHIMANO CANADA LTD | | | SCAC4 |
| 4388 | SHIM | Shimabara Railway | | J | TRAFFIC |
| 4389 | SHIMO | Shimotsui Railway | | J | TRAFFIC |
| 4390 | SHIN | Shinano Railway Company | | J | TRAFFIC |
| 4391 | SHINB | Shin-Shin Bus | | RC | TRAFFIC |
| 4392 | SHINH | Shinano Railway (historical) | 1911 - 1937 | J | TRAFFIC |
| 4393 | SHIO | SHIPPERS OVERLOAD DELIVERY | | | SCAC4 |
| 4394 | SHIP | SHIPPERS CAR LINE | | | PWRC |
| 4395 | SHIP | SHIPCRAFT CARRIERS A/S COPENHAGEN | | | SCAC4 |
| 4396 | SHIR | SHIPPELT TRANSPORT LTD | | | SCAC4 |
| 4397 | SHIU | SHIPLILLY LATAM S.R.L. | | PA | BIC |
| 4398 | SHIU | SHIRAN CONTAINER LEASING (PRIVATE) | | | SCAC4 |
| 4399 | SHIV | S & H TRANSPORT LTD | | | SCAC4 |
| 4400 | SHIY | SUNRISE HELICOPTERS INC | | | SCAC4 |
