| 1 | NCGX | Merchants Despatch Transportation Corp. | added 7/1962; 7/1965-10/1966; eliminated 7/1968 | | NAKINA |
| 2 | NCGX | Northern Refrigerator Line Inc. | 1/1950-4/1961; eliminated 7/1962 | | NAKINA |
| 3 | NCGX | Northern Refrigerator Line Inc. | 1/52-4/61 | | NRHS |
| 4 | NCGX | Merchants Despatch Transportation Corp. | 7/65-10/66; eliminated 7/68 | | NRHS |
| 5 | NCGX | *NORTHERN REFRIGERATOR LINE | | | PWRC |
