| 941 | M2 Engineering | Edmonton |
| 942 | Macogep inc. | Montréal |
| 943 | Magna IV Engineering, Inc. | Edmonton |
| 944 | Magna IV Engineering, Inc. | Burnaby |
| 945 | Magna IV Engineering, Inc. | Calgary |
| 946 | Magna IV Engineering, Inc. | Englewood |
| 947 | Magna IV Engineering, Inc. | Fort McMurray |
| 948 | Magna IV Engineering, Inc. | Grande Prairie |
| 949 | Magna IV Engineering, Inc. | Pearland |
| 950 | Magna IV Engineering, Inc. | Santiago |
| 951 | Malcolm Pinto Engineering Limited | Halifax |
| 952 | March Consulting Associates Inc. | Saskatoon |
| 953 | March Consulting Associates Inc. | Regina |
| 954 | MAT 4Site Engineers Ltd. | Toronto |
| 955 | Maven Consulting Limited | North Vancouver |
| 956 | MCA Consultants Inc. | Charlottetown |
| 957 | McElhanney Ltd. | Calgary |
| 958 | McElhanney Ltd. | Campbell River |
| 959 | McElhanney Ltd. | Canmore |
| 960 | McElhanney Ltd. | Courtenay |
