| 1 | CSLX | Holcim (Canada) Inc. | added 1/2010 | | NAKINA |
| 2 | CSLX | Ciment St-Laurent | added 7/2007; eliminated 1/2010 | | NAKINA |
| 3 | CSLX | Concrete Supply Co. | added 1/1975; 1/1975; eliminated 1/1980 | | NAKINA |
| 4 | CSLX | Concrete Supply Co. | added 1/75; 1/75; eliminated 1/80 | | NRHS |
| 5 | CSLX | *CONCRETE SUPPLY CO. | | | PWRC |
| 6 | CSLX | *CAREY SHORT LINE CORP. | | | PWRC |
| 7 | CSLX | +CIMENT ST-LAURENT | | | PWRC |