| 11101 | BSTX | Trinitas Corp. | added 1/80; 1/80-1/94; eliminated 1/95; 7/2000 | | NRHS |
| 11102 | BSTX | *BUDWEISER SKI TRAIN | | | PWRC |
| 11103 | BSTX | +TRINITAS CORPORATION (BAY STATE MILLING CO. - LESSEE) | | | PWRC |
| 11104 | BSTX | Bay State Milling (Trinitas Corporation) | | | RSRV |
| 11105 | BSTX | TRINITAS CORPORATION | | | SCAC4 |
| 11106 | BSTY | BAR S TRUCKING | | | SCAC3 |
| 11107 | BSUA | BASIC SHIPPING USA INC | | | SCAC4 |
| 11108 | BSUC | BUILDERS SUPPLY COMPANY | | | SCAC3 |
| 11109 | BSUC | B S TRUCKLINE | | | SCAC4 |
| 11110 | BSUI | BULKSHIP UNION S A | | | SCAC4 |
| 11111 | BSUM | BEST TRANSPORTATION SERVICES OF SUM | | | SCAC4 |
| 11112 | BSUQ | BORDER STAR TRUCKING INC | | | SCAC4 |
| 11113 | BSUR | BRASSEUR TRANSPORT INC | | | SCAC3 |
| 11114 | BSUR | BRASSEUR TRANSPORT INC | | | SCAC4 |
| 11115 | BSUS | BRANDTSHIP USA INC, | | | SCAC3 |
| 11116 | BSUT | BRANSCUM TRUCKING INC | | | SCAC3 |
| 11117 | BSUU | BEIRUT SHIPPING LLC | | UAE | BIC |
| 11118 | BSV | Blue Star Aviation C.A. | Callsign: Bluestarven, | YV | AVCODES |
| 11119 | BSV | BOONE & SCENIC VALLEY RAILROAD | | | PWRC |
| 11120 | BSVA | BLUE SKY VAN LINES | | | SCAC3 |
| 11121 | BSVA | BLUE SKY VAN LINES INC | | | SCAC4 |
| 11122 | BSVB | BEST SERVICE TRANSPORTATION INC | | | SCAC4 |
| 11123 | BSVC | BEDFORD SEPTIC SERVICE INC | | | SCAC4 |
| 11124 | BSVE | BRETHREN SERVICE CENTER | | | SCAC4 |
| 11125 | BSVF | BO SERVICE INC | | | SCAC4 |
| 11126 | BSVG | BLUE ISLAND NAVIGATION SA, | | | SCAC3 |
| 11127 | BSVI | BAKER TRUCKING SERVICE | | | SCAC3 |
| 11128 | BSVI | BASIC SERVICES INC | | | SCAC4 |
| 11129 | BSVK | BLUNT, STEVE TRUCKING INC | | | SCAC3 |
| 11130 | BSVK | BLOSER, STEVE TRUCKING LLC | | | SCAC4 |
| 11131 | BSVL | BATESVILLE TRUCK LINE, INC | | | SCAC3 |
| 11132 | BSVL | BLUESTAR SERVICES LLC | | | SCAC4 |
| 11133 | BSVN | BURNER, STEVEN TRUCKING INC | | | SCAC4 |
| 11134 | BSVO | BULK SERVICES INC | | | SCAC3 |
| 11135 | BSVP | BULK SERVICE TRANSPORT INC | | | SCAC4 |
| 11136 | BSVQ | BOWENS DELIVERY SERVICE | | | SCAC3 |
| 11137 | BSVS | BROWNS VAN & STORAGE | | | SCAC3 |
| 11138 | BSVS | B S V SHIPPING LINE | | | SCAC4 |
| 11139 | BSVT | BLACK SILVER TRUCKING INC | | | SCAC3 |
| 11140 | BSVY | Boone & Scenic Valley R.R. | 7/2005 | | NAKINA |
| 11141 | BSVY | BOONE & SCENIC VALLEY RAILROAD | | | PWRC |
| 11142 | BSVY | Boone and Scenic Valley Railroad | | | RSRV |
| 11143 | BSVY | BOONE & SCENIC VALLEY RAILROAD | | | SCAC4 |
| 11144 | BSVZ | BULK SERVICE | | | PWRC |
| 11145 | BSW | Blue Sky Airways | Callsign: Sky Blue, | CZ | AVCODES |
| 11146 | BSW | Blue Sky Airways | | | ICAO1 |
| 11147 | BSW | Batesville Southwestern R.R. | 7/1923-7/1930 | | NAKINA |
| 11148 | BSW | Batesville Southwestern R.R. | 23-Jul | | NRHS |
| 11149 | BSW | BATESVILLE SOUTHWESTERN RAILROAD | | | PWRC |
| 11150 | BSW | | | D | TRAFFIC |
| 11151 | BSWA | BESTWAY LINE | | | SCAC3 |
| 11152 | BSWC | BEST WEST CARRIER INC | | | SCAC4 |
| 11153 | BSWD | BEST WAY DISPOSAL | | | SCAC4 |
| 11154 | BSWE | BESTWAY ENTERPRISES INC | | | SCAC3 |
| 11155 | BSWE | BOSTON WALL BEDS INC | | | SCAC4 |
| 11156 | BSWG | BRADSHAW TRUCKING | | | SCAC4 |
| 11157 | BSWH | BAYSIDE WASTE HAULING & TRANSFER CO | | | SCAC3 |
| 11158 | BSWH | BUSINESS SERVICES HAWAII | | | SCAC4 |
| 11159 | BSWI | BESTWAY CARTAGE INC | | | SCAC3 |
| 11160 | BSWI | BRADSHAWS TRUCK SERVICE INC | | | SCAC4 |
| 11161 | BSWJ | BULLOCK, STEVEN WAYNE | | | SCAC4 |
| 11162 | BSWK | BELLATOR SPORTS WORLDWIDE LLC | | | SCAC4 |
| 11163 | BSWM | BEST WAY MOVING & STORAGE CO INC | | | SCAC3 |
| 11164 | BSWN | BOSTON, WAYNE | | | SCAC3 |
| 11165 | BSWN | BASARABA, WAYNE TRUCKING | | | SCAC4 |
| 11166 | BSWO | BASIN WESTERN INC | | | SCAC3 |
| 11167 | BSWO | BASIN WESTERN INC | | | SCAC4 |
| 11168 | BSWP | BESTWAY TRANSPORT | | | SCAC4 |
| 11169 | BSWQ | BEST WAY TRANSPORT INC | | | SCAC4 |
| 11170 | BSWR | BLUE STAR WAREHOUSE INC | | | SCAC3 |
| 11171 | BSWS | BESTWAY SYSTEMS, INC | | | SCAC3 |
| 11172 | BSWS | BESTWAY SYSTEMS INC | | | SCAC4 |
| 11173 | BSWT | BESTWAY TRANSPORT COMPANY | | | SCAC3 |
| 11174 | BSWT | BESTWAY TRANSPORT COMPANY | | | SCAC4 |
| 11175 | BSWU | BISON CONCRETE PRODUCTS LTD | | | SCAC4 |
| 11176 | BSWW | BOSWELL, W L | | | SCAC3 |
| 11177 | BSWW | BESTWAY EXPEDITING LLC | | | SCAC4 |
| 11178 | BSWX | Bloedel, Stewart & Welch Ltd. | 7/1937 (not listed) | | NAKINA |
| 11179 | BSWX | BLOEDEL, STEWART & WELCH LTD. | | | PWRC |
| 11180 | BSWY | BEST WAY TRUCK LINE | | | SCAC3 |
| 11181 | BSX | Bassaka Air Limited d/b/a Bassaka Air | IATA: 5B, Callsign: Bassaka, IATA Prefix: 590, Founded in 2013. Commenced operations on 01 December 2014. | K | AVCODES |
| 11182 | BSX | Brown-Strauss Corp. | 1/1946 | | NAKINA |
| 11183 | BSX | The B. & S. Car Co. | 8/1920 | | NAKINA |
| 11184 | BSX | BROWN-STRAUSS CORP. [B & s CAR CO.] | | | PWRC |
| 11185 | BSX | BSX Tåg AB (Baltic Southern Express) | 1994 - 1997 | S | svenska-lok.se |
| 11186 | BSX | BSX Tåg AB | 1994 - 1997 | S | TRAFFIC |
| 11187 | BSXE | BLACK SHEEP EXPRESS INC | | | SCAC3 |
| 11188 | BSXF | BARRERAS TRANSPORT | | | SCAC4 |
| 11189 | BSXG | B S XPRESS LLC | | | SCAC4 |
| 11190 | BSXL | BS TRUCKING EXPRESS LLC | | | SCAC4 |
| 11191 | BSXM | BUSSE EXPRESS | | | SCAC3 |
| 11192 | BSXN | B S XPRESS INC | | | SCAC3 |
| 11193 | BSXN | B S XPRESS INC | | | SCAC4 |
| 11194 | BSXO | BLASER EXPRESS | | | SCAC4 |
| 11195 | BSXP | BAY STATE EXPRESS CO, INC | | | SCAC3 |
| 11196 | BSXP | BILLOS TRANSPORT | | | SCAC4 |
| 11197 | BSXQ | BENS EXPRESS | | | SCAC3 |
| 11198 | BSXQ | BACKSTREET TRANSPORT INC | | | SCAC4 |
| 11199 | BSXR | BIG SHOT EXPRESS INC | | | SCAC3 |
| 11200 | BSXR | BUSINESS EXPRESS | | | SCAC4 |
