| 1 | BWC | Consolidated Rail Corp. | added 4/1976; eliminated 10/1979; 1/1980-1/1994 | | NAKINA |
| 2 | BWC | Penn Central Transportation Co., Robert W. Blanchette, Richard C. Bond and John H. McArthur, Trustees | eliminated 4/1976 | | NAKINA |
| 3 | BWC | Penn Central Transportation Co. | 1/1975 | | NAKINA |
| 4 | BWC | Pennsylvania R.R. | 7/1965-10/1966 | | NAKINA |
| 5 | BWC | Pennsylvania R.R. | 7/65-10/66 | | NRHS |
| 6 | BWC | Penn Central Transportation Co. | Jan-75 | | NRHS |
| 7 | BWC | Penn Central Transportation Co., Robert W. Blanchette, Richard C. Bond and John H. McArthur, Trustees | eliminated 4/76 | | NRHS |
| 8 | BWC | Consolidated Rail Corp. | added 4/76; 1/80-1/94 | | NRHS |
| 9 | BWC | CONSOLIDATED RAIL CORP. [PENNSYLVANIA RAILROAD, PENN CENTRAL RAILROAD} | | | PWRC |
| 10 | BWC | BERWIND CORPORATION | | | PWRC |
| 11 | BWC | Berwind Corporation (Conrail) | | | RSRV |
| 12 | BWCA | BROWN, C H TRANSPORTATION INC | | | SCAC4 |
| 13 | BWCB | BLACK & WHITE CAB CO | | | SCAC3 |
| 14 | BWCB | BLACK & WHITE PACKAGE | | | SCAC4 |
| 15 | BWCC | BERWICK COOPERATIVE OIL COMPANY | | | SCAC4 |
| 16 | BWCD | BLACK & WHITE CAB COMPANY | | | SCAC3 |
| 17 | BWCD | BLACKWELL CONSOLIDATION LLC | | | SCAC4 |
| 18 | BWCE | BEST-WAY CARRIERS INC | | | SCAC3 |
| 19 | BWCE | BEST WAY CARGO EXPRESS INC | | | SCAC4 |
| 20 | BWCF | BORD, W C | | | SCAC3 |
| 21 | BWCG | BLUE WATER CARTAGE LEASING INC | | | SCAC3 |
| 22 | BWCH | BREWER, CHARLES M | | | SCAC3 |
| 23 | BWCH | BROWN, CHARLES V | | | SCAC4 |
| 24 | BWCI | BISCONTINI WAREHOUSE CO INC | | | SCAC3 |
| 25 | BWCI | BUDWAL CARRIER INC | | | SCAC4 |
| 26 | BWCJ | BWC TRUCKING | | | SCAC4 |
| 27 | BWCK | BROWN, C TRUCKING COMPANY INC | | | SCAC3 |
| 28 | BWCK | BROWN, C TRUCKING COMPANY INC | | | SCAC4 |
| 29 | BWCL | BESTWAY CARTAGE LIMITED | | | SCAC3 |
| 30 | BWCL | BESTWAY CARTAGE LIMITED | | | SCAC4 |
| 31 | BWCM | BLUE WHALE CORPORATION | | | SCAC4 |
| 32 | BWCMCo | BERWIND-WHITE COAL MINING CO. | | | PWRC |
| 33 | BWCMCo. | Berwind-White Coal Mining Co. —temporarily assigned expiring Jan. 1, 1939 | 7/1937-4/1938 | | NAKINA |
| 34 | BWCMCo. | Berwind-White Coal Mining Co. | 7/1935 | | NAKINA |
| 35 | BWCMCo. | Berwind-White Coal Mining Co. | Apr-38 | | NRHS |
| 36 | BWCN | BROWN TRUCKING | | | SCAC3 |
| 37 | BWCO | BUSHNELLS WAREHOUSING & TRUCKING CO | | | SCAC4 |
| 38 | BWCP | BROWN COMPANY | | | SCAC3 |
| 39 | BWCQ | BENDER WAREHOUSE COMPANY | | | SCAC3 |
| 40 | BWCQ | BWC TRUCKING CO INC | | | SCAC4 |
| 41 | BWCR | BROWN, CHARLES OIL COMPANY | | | SCAC3 |
| 42 | BWCR | BROWN, CHARLES OIL | | | SCAC4 |
| 43 | BWCS | BROWN, W C ENTERPRISES | | | SCAC3 |
| 44 | BWCT | BOWERS, CLAYTON TRUCKING | | | SCAC3 |
| 45 | BWCU | BAY LOGISTIK GMBH & CO KG | | D | BIC |
| 46 | BWCU | BAY LOGISTIK GMBH & CO | | | SCAC4 |
| 47 | BWCW | BIG WHEEL CONNECTION INC | | | SCAC4 |
| 48 | BWCX | G.E. Plastics | added 10/1989; 1/1994-7/2005; eliminated 4/2006 | | NAKINA |
| 49 | BWCX | Borg-Warner Chemicals | added 10/1979; 1/1980; eliminated 10/1989 | | NAKINA |
| 50 | BWCX | Berwind-White Coal Mining Co. (previously B.W.C.M.Co.) | added 11/1934; 7/1935-4/1961; eliminated 1/1964 | | NAKINA |
| 51 | BWCX | Berwind-White Coal Mining Co. | 4/38-4/61 | | NRHS |
| 52 | BWCX | Borg-Warner Chemicals | 1/80; eliminated 10/89 | | NRHS |
| 53 | BWCX | G.E. Plastics | added 10/89; 1/94-7/2000 | | NRHS |
| 54 | BWCX | *BERWIND-WHITE COAL MINING CO. | | | PWRC |
| 55 | BWCX | +G. E. PLASTICS [BORG-WARNER CHEMICALS] | | | PWRC |
| 56 | BWCX | Borg-Warner Chemicals (GE Plastics) | | | RSRV |
| 57 | BWCX | G E PLASTICS | | | SCAC4 |
| 58 | BWCX | Berwind-White Coal Mining Co. | | USA | TRAFFIC |
| 59 | BWCY | BLACK & WHITE CAB INC | | | SCAC3 |