| 1001 | Meco | Dartmouth |
| 1002 | Meridian Engineering Inc. | Clarenville |
| 1003 | Meritech Engineering | Cambridge |
| 1004 | MLC Associés inc. | Laval |
| 1005 | MLC Associés inc. | Montréal |
| 1006 | MNA Quality Consulting Ltd. | Calgary |
| 1007 | Mobility Foresight | North Vancouver |
| 1008 | Moffatt & Nichol | Long Beach |
| 1009 | Moffatt & Nichol | New York |
| 1010 | Moffatt & Nichol | Vancouver |
| 1011 | Morrison Hershfield Limited | Markham |
| 1012 | Morrison Hershfield Limited | Atlanta |
| 1013 | Morrison Hershfield Limited | Burlington |
| 1014 | Morrison Hershfield Limited | Burnaby |
| 1015 | Morrison Hershfield Limited | Calgary |
| 1016 | Morrison Hershfield Limited | Edmonton |
| 1017 | Morrison Hershfield Limited | Ottawa |
| 1018 | Morrison Hershfield Limited | St. John's |
| 1019 | Morrison Hershfield Limited | Winnipeg |
| 1020 | Mott MacDonald Canada Limited | Toronto |
