| 1 | NLX | Allied Chemical, a Division of Allied Canada, Inc. | added 5/1983; eliminated 4/1984 | | NAKINA |
| 2 | NLX | Allied Chemical Canada, Ltd. | 4/1970-1/1980; eliminated 5/1983 | | NAKINA |
| 3 | NLX | Nichols Chemical Co., Ltd. (Allied Chemical Canada, Ltd.) | 10/1966 | | NAKINA |
| 4 | NLX | Allied Chemical Canada, Ltd. | added 7/1963; 7/1965 | | NAKINA |
| 5 | NLX | Nichols Chemical Co., Ltd. | 7/1923-4/1961; eliminated 7/1963 | | NAKINA |
| 6 | NLX | Nichols Chemical Co., Ltd. | 4/38-4/61; eliminated 7/63 | | NRHS |
| 7 | NLX | Allied Chemical Canada, Ltd. | added 7/63; 7/65 | | NRHS |
| 8 | NLX | Nichols Chemical Co., Ltd. (Allied Chemical Canada, Ltd.) | Oct-66 | | NRHS |
| 9 | NLX | Allied Chemical Canada, Ltd. | 4/70-1/80; eliminated 5/83 | | NRHS |
| 10 | NLX | Allied Chemical, a Division of Allied Canada, Inc. | added 5/83; eliminated 4/84 | | NRHS |
| 11 | NLX | RETIRED 02-12-91 FET (1390) [ALLIED CHEMICAL CANADA LTD.; NICHOLS CHEMICAL CO.] | | | PWRC |
| 12 | NLX | Allied Chemical Canada | | | RSRV |
| 13 | NLXI | NORTHLAND EXPRESS, INC | | | SCAC3 |
| 14 | NLXP | NATIONAL EXPRESS INC | | | SCAC4 |
| 15 | NLXU | THE NORTON LINE | | | SCAC3 |
| 16 | NLXV | NEAL EXCAVATING CO | | | SCAC3 |