| 61 | AIA Engineers Ltd. | San Antonio |
| 62 | Ainley Group | Collingwood |
| 63 | Ainley Group | Barrie |
| 64 | Ainley Group | Belleville |
| 65 | Ainley Group | Brampton |
| 66 | Ainley Group | Gloucester |
| 67 | Ainley Group | Kingston |
| 68 | Aiolos Engineering Corporation | Toronto |
| 69 | Akron Engineering Consultant's Group Ltd. | Fort McMurray |
| 70 | Al-Terra Engineering (Red Deer) Ltd. | Red Deer |
| 71 | Al-Terra Engineering Ltd. | Edmonton |
| 72 | ALFA Engineering Ltd. | Regina |
| 73 | Allnorth Consultants Limited | Vancouver |
| 74 | Allnorth Consultants Limited | Calgary |
| 75 | Allnorth Consultants Limited | Dartmouth |
| 76 | Allnorth Consultants Limited | Edmonton |
| 77 | Allnorth Consultants Limited | Fort Nelson |
| 78 | Allnorth Consultants Limited | Grande Prairie |
| 79 | Allnorth Consultants Limited | Phoenix |
| 80 | Allnorth Consultants Limited | Prince George |
