| 10201 | SSRD | SCHLUESSE | | | SCAC4 |
| 10202 | SSRE | SUPERIOR SERVICE EXPRESS INC | | | SCAC4 |
| 10203 | SSRI | SHIPPING SERVICES ITALIA | | | SCAC4 |
| 10204 | SSRJ | S & S RANCH | | | SCAC4 |
| 10205 | SSRK | S & S TRUCKING INC | | | SCAC4 |
| 10206 | SSRL | S & S TRANSPORT LLC | | | SCAC4 |
| 10207 | SSRN | SS TRUCKING | | | SCAC4 |
| 10208 | SSRO | SANCHEZ SOTO, RODRIGO | | | SCAC4 |
| 10209 | SSRP | SUNSET TRANSPORTATION INC | | | SCAC4 |
| 10210 | SSRS | SS TRANSPORT | | | SCAC4 |
| 10211 | SSRS | Spur South Rail Services | | AUS | TRAFFIC |
| 10212 | SSRT | Affärsverket Statens Järnvägar | 2001 - | S | svenska-lok.se |
| 10213 | SSRT | Affärsverket Statens Järnvägar | 2001 - | S | TRAFFIC |
| 10214 | SSRT | affärsverket Statens järnvägar | | SE | VKM |
| 10215 | SSRU | SSREEFER-SOLUCOES EM SERVICOS REEFER LTDA | | BR | BIC |
| 10216 | SSRU | SEA STAR EXPRESS | | | SCAC1 |
| 10217 | SSRU | SSREEFER-SOLUC | | | SCAC4 |
| 10218 | SSRW | SEASTAR LLC | | | SCAC4 |
| 10219 | SSRX | *SAN SABA RAILWAY PARTNERS | | | PWRC |
| 10220 | SSRX | +S&S SHORTLINE LEASING LLC | | | PWRC |
| 10221 | SSRX | S & S SHORTLINE LEASING LLC | | | SCAC4 |
| 10222 | SSS | Compania de Servicios Aereos, S.A. (SAESA) | Callsign: Saesa, | E | AVCODES |
| 10223 | SSS | SAESA | | | ICAO1 |
| 10224 | SSSC | SVEMIR SHIPPING SCHIFFSMAKLER UND - | | | SCAC4 |
| 10225 | SSSE | SEVEN (7) SEAS EXPRESS LINE | | | SCAC4 |
| 10226 | SSSF | SSS FARMS LLC | | | SCAC4 |
| 10227 | SSSG | SAIF SHIPPING SRL | | | SCAC4 |
| 10228 | SSSH | SONORAN SUN SHUTTERS S A DE C | | | SCAC4 |
| 10229 | SSSI | SUPERIOR SOLID SURFACES INC | | | SCAC4 |
| 10230 | SSSJ | SELECT STEELE SOLUTIONS INC | | | SCAC4 |
| 10231 | SSSK | SHORELINE STORAGE SOLUTIONS & KAP V | | | SCAC4 |
| 10232 | SSSL | South Suburban Safeway Lines | City: Chicago | USA | TRAFFIC |
| 10233 | SSSM | S SPIRIT SHIPPING COMPANY LIMITED, | | | SCAC4 |
| 10234 | SSSN | SEA STAR SHIPPING NAVIGATION SA PAN | | | SCAC4 |
| 10235 | SSSO | SIX SEVEN SEVEN TWO FOUR ONE (67724 | | | SCAC4 |
| 10236 | SSSQ | SAMUELS & SON SEAFOOD CO INC | | | SCAC4 |
| 10237 | SSSS | SWIFT SPRING & SUSPENSION | | | SCAC4 |
| 10238 | SSST | SOUTH SOUND STEEL & RECYCLING INC | | | SCAC4 |
| 10239 | SSSU | SEA SANDS SHIPPING L.L.C | | UAE | BIC |
| 10240 | SSSU | HANSEN & TIDEMANN,INC. | | | PWRC |
| 10241 | SSSU | Hansen and Tidemann | | | RSRV |
| 10242 | SSSU | SEA SANDA SHIPPING LLC | | | SCAC4 |
| 10243 | SSSV | SIX SEVEN SEVEN FIVE ONE EIGHT SEVE | | | SCAC4 |
| 10244 | SSSW | SSS CABINETS (2003 INC) | | | SCAC4 |
| 10245 | SSSX | Transportation Logistics Corp. | added 7/1994; eliminated 10/1999; 7/2000-7/2005 (not listed) | | NAKINA |
| 10246 | SSSX | Transportation Logistics Corp. | added 7/94; eliminated 10/99; 7/2000 | | NRHS |
| 10247 | SSSX | *TRANSPORTATION LOGISTICS CORPORATION | | | PWRC |
| 10248 | SSSX | +CENTRAL TRANSPORTATION SERVICES, INC. | | | PWRC |
| 10249 | SSSX | Transportation Logistics Corporation | | | RSRV |
| 10250 | SSSX | CENTRAL TRANSPORTATION SERVICES INC | | | SCAC4 |
| 10251 | SSSY | SASSY INC | | | SCAC4 |
| 10252 | SSSZ | HANSEN & TIDEMANN,INC. | | | PWRC |
| 10253 | SSSZ | Hansen and Tidemann | | | RSRV |
| 10254 | SSSZ | HANSEN & TIDEMANN,INC. | | | SCAC4 |
| 10255 | SST | Sunwest Airlines Ltd. | Callsign: Sunflight, | CDN | AVCODES |
| 10256 | SST | Royal Canadian Mounted Police | Callsign: Stetson, | CDN | AVCODES |
| 10257 | SST | Sunwest Airlines | | | ICAO1 |
| 10258 | SSTB | SAMSON TUG AND BARGE CO | | | SCAC1 |
| 10259 | SSTB | SAMSON TUG AND BARGE COMPANY INC | | | SCAC4 |
| 10260 | SSTC | SOUTHEAST SERVICE TRANSPORT LLC | | | SCAC4 |
| 10261 | SSTE | S & S TRANSPORT INC | | | SCAC4 |
| 10262 | SSTF | SIX ONE SIX TWO FOUR ONE ZERO (6162 | | | SCAC4 |
| 10263 | SSTI | STONE, SHELBY TRUCKING INC | | | SCAC4 |
| 10264 | SSTK | SERVIES AND SHIRAR TRUCKING INC | | | SCAC4 |
| 10265 | SSTL | SHORT & SASSY TRUCKIN LLC | | | SCAC4 |
| 10266 | SSTN | SEANOSTRUM TANKER LIMITED | | | SCAC4 |
| 10267 | SSTO | S&S TRANSPORTATION, INC | | | SCAC1 |
| 10268 | SSTO | SCOT & SCOTT TRUCKING OF ANTIGO LLC | | | SCAC4 |
| 10269 | SSTP | S & S TRANSPORT | | | SCAC4 |
| 10270 | SSTQ | S S T S INC | | | SCAC4 |
| 10271 | SSTR | SUPOR, J & SON TRUCKING & RIGGING C | | | SCAC4 |
| 10272 | SSTS | SMITH & SON TRANSPORT | | | SCAC4 |
| 10273 | SSTU | SILVERSEA S.L | | E | BIC |
| 10274 | SSTU | SOUTH SEAS STEAMSHIP | | | SCAC1 |
| 10275 | SSTV | STATE TO STATE VAN LINES INC | | | SCAC4 |
| 10276 | SSTX | Edman Corp. d/b/a Schnitzer Steel | 7/2005 (not listed) | | NAKINA |
| 10277 | SSTX | EDMAN CORP. d/b/a SCHNITZER STEEL | | | PWRC |
| 10278 | SSTX | SCHNITZER STEEL | | | SCAC4 |
| 10279 | SSTY | SMITH SYSTEMS TRANSPORTATION INC | | | SCAC4 |
| 10280 | SSU | Servicios Aereos Sucre C.A. (SASCA) | Callsign: Sasca, | YV | AVCODES |
| 10281 | SSU | SASCA | | | ICAO1 |
| 10282 | SSUA | SEE-SPED USA INC | | | SCAC4 |
| 10283 | SSUD | STRATER, SUSANNE | | | SCAC4 |
| 10284 | SSUF | STI SOLUTIONS CO | | | SCAC4 |
| 10285 | SSUG | S T S TRUCKING INC | | | SCAC4 |
| 10286 | SSUH | SHIPPERS SUPPLY | | | SCAC4 |
| 10287 | SSUJ | SHINY SIDE UP ROADRUNNER INC | | | SCAC4 |
| 10288 | SSUM | S & S CUSTOM WORK INC | | | SCAC4 |
| 10289 | SSUN | SAMSUN LOGIX CORPORATION | | | SCAC4 |
| 10290 | SSUO | SUTTON TRANSPORT INC | | | SCAC4 |
| 10291 | SSUP | SINOCAN SUPERIOR MINERALS | | | SCAC4 |
| 10292 | SSUU | S&S SUPPLY LTD | | CDN | BIC |
| 10293 | SSUV | SANRITSU CORPORATION | | | SCAC4 |
| 10294 | SSUY | SHINEY SIDE UP ENTERPRISES | | | SCAC4 |
| 10295 | SSV | Skyservice Airlines, Inc. | IATA: 6J, Callsign: Skytour, IATA Prefix: 884, IATA Designator changed to 5G. Name changed from Skyservice Airlines Inc. d/b/a Skyservice Roots Air | CDN | AVCODES |
| 10296 | SSV | Skyservice Airlines, Inc. | IATA: 6J, Callsign: Skytour, IATA Prefix: 884, Name changed to Skyservice Airlines Inc. d/b/a Skyservice Roots Air | CDN | AVCODES |
| 10297 | SSV | Skyservice Airlines Inc. d/b/a Skyservice Roots Air | IATA: 6J, Callsign: Skytour, IATA Prefix: 884, Name reverts to Skyservice Airlines Inc. on 04 May 2001. Name changed from Skyservice Airlines Inc. | CDN | AVCODES |
| 10298 | SSV | Skyservice Airlines, Inc. | IATA: 5G, Callsign: Skytour, IATA Prefix: 884, Ceased operations on 31 March 2010. IATA Designator changed from 6J*. Name changed from Skyservice Airlines Inc. d/b/a Skyservice Roots Air | CDN | AVCODES |
| 10299 | SSV | Anda Air LLC | IATA: DM, Commenced operations on 22 October 2016. | UA | AVCODES |
| 10300 | SSV | Skyservice Airlines | IATA: 5G | | ICAO1 |
