| 1 | ABRX | LHSTL Railway Co. | added 7/2008; eliminated 1/2010 | | NAKINA |
| 2 | ABRX | Railmark Holdings Inc. | added 1/2004; eliminated 4/2004; 7/2005 (unlisted) | | NAKINA |
| 3 | ABRX | AB Rail Investments, Inc. | 7/2000 (not listed) | | NAKINA |
| 4 | ABRX | Merchants Despatch Transportation Corp. | 4/1938-4/1947 | | NAKINA |
| 5 | ABRX | Merchants Despatch Transportation Corp. (Abraham Bros. Packing Co.) | 7/1937 | | NAKINA |
| 6 | ABRX | Abraham Bros. Packing Co. | Apr-38 | | NRHS |
| 7 | ABRX | AB Rail Investments, Inc. | Jul-00 | | NRHS |
| 8 | ABRX | *MERCHANTS DESPATCH TRANSPORTATION CORP. (ABRAHAM BROS. PACKING CO.) | | | PWRC |
| 9 | ABRX | *ADRIAN & BLISSFIELD RAILROAD | | | PWRC |
| 10 | ABRX | *AB RAIL INVESTMENTS INC. | | | PWRC |
| 11 | ABRX | *RAILMARK HOLDINGS INC. | | | PWRC |
| 12 | ABRX | +LHSTL RAILWAY CO. | | | PWRC |
| 13 | ABRX | AB Rail Investments (Railmark Holdings) | | | RSRV |
| 14 | ABRX | RAILMARK HOLDINGS INC | | | SCAC4 |