| 1 | CNQ | Canadian National Rys. | 1/1994-7/2005 | | NAKINA |
| 2 | CNQ | Canadian Northern Quebec Ry. (Canadian National Rys.) | 8/1920-7/1923 | | NAKINA |
| 3 | CNQ | Canadian Northern Quebec Ry. (Canadian National Rys.) | 23-Jul | | NRHS |
| 4 | CNQ | Canadian National Rys. | 1/94-7/2000 | | NRHS |
| 5 | CNQ | CANADIAN NATIONAL RWY [CANADIAN NORTHERN QUEBEC RWY.] | | | PWRC |
| 6 | CNQ | Canadian National Railway | | | RSRV |
| 7 | CNQC | CONQUER CARTAGE INC | | | SCAC3 |
| 8 | CNQC | CORCORAN LOGISTICS LLC | | | SCAC4 |
| 9 | CNQE | C & O ENTERPRISES | | | SCAC3 |
| 10 | CNQF | CONTAINER SERVICES ONTERNATIONAL IN | | | SCAC3 |
| 11 | CNQF | CANOTS ESQUIF INC | | | SCAC4 |
| 12 | CNQG | CENTERGAS INC | | | SCAC3 |
| 13 | CNQG | CENTRAL NATIONAL GOTTESMAN | | | SCAC4 |
| 14 | CNQH | CANARCTIC SHIPPING COMPANY LIMITED | | | SCAC3 |
| 15 | CNQI | CENTURIONS SOLUTIONS INC | | | SCAC4 |
| 16 | CNQL | C & L TRANSPORTATION INC | | | SCAC3 |
| 17 | CNQL | C & L TRANSPORTATION INC | | | SCAC4 |
| 18 | CNQM | CONTINENTAL MOVING & STORAGE INC | | | SCAC3 |
| 19 | CNQN | CONLON TRANSPORTATION | | | SCAC3 |
| 20 | CNQO | CONNELL OIL INC | | | SCAC4 |
| 21 | CNQP | COASTLINE TRANSPORTATION INC | | | SCAC3 |
| 22 | CNQP | CONTAINER CARRIER INCORPORATED | | | SCAC4 |
| 23 | CNQR | CRANOR TRUCK LINES INC | | | SCAC3 |
| 24 | CNQT | CONTINENTAL TRANSPORT INC | | | SCAC3 |
| 25 | CNQT | CONTINENTAL CARRIER TRUCKING | | | SCAC4 |
| 26 | CNQV | CONRAD MOVING & STORAGE | | | SCAC3 |
| 27 | CNQW | CONWAY SHIPPING COMPANY, LTD. | | | SCAC3 |
| 28 | CNQW | CONWAY SHIPPING COMPANY, LTD. | | | SCAC4 |
