| 1 | MERX | Merco, A Joint Venture | 1/1994 (not listed); added 1/1997; 7/2000; eliminated 7/2002 | | NAKINA |
| 2 | MERX | Merchants Despatch Transportation Co. | 4/1961-4/1970; eliminated 1/1973 | | NAKINA |
| 3 | MERX | Mercantile Refrigerator Line (Merchants Despatch Transportation Corp.) | 7/1937; 4/1938-10/1957 | | NAKINA |
| 4 | MERX | The Mecca Refining Co. | 7/1923 | | NAKINA |
| 5 | MERX | Mercantile Refrigerator Line (Merchants Despatch Transportation Corp.) | 1/52-10/57 | | NRHS |
| 6 | MERX | Merchants Despatch Transportation Co. | 4/61-4/70; eliminated 1/73 | | NRHS |
| 7 | MERX | Merco, A Joint Venture | 1/94; added 1/97; 7/2000 | | NRHS |
| 8 | MERX | *MECCA REFINING CO. | | | PWRC |
| 9 | MERX | *MERCANTILE REFRIGERATOR LINE (MERCHANTS DESPATCH TRANSPORTATION CORP.) | | | PWRC |
| 10 | MERX | *MERCO, A JOINT VENTURE | | | PWRC |
| 11 | MERX | Merco | | | RSRV |
| 12 | MERX | MERLIN PLASTICS SUPPLY INC | | | SCAC4 |