| 701 | GHD Limited | St. Catharines |
| 702 | GHD Limited | Toronto |
| 703 | GHD Limited | Vancouver |
| 704 | GHD Limited | Whitby |
| 705 | GHD Limited | Windsor |
| 706 | GM BluePlan | Guelph |
| 707 | GM BluePlan | Exeter |
| 708 | GM BluePlan | Kitchener |
| 709 | GM BluePlan | Listowel |
| 710 | GM BluePlan | Owen Sound |
| 711 | Gomex Engineering | Charlottetown |
| 712 | Gomex Engineering | Charlottetown |
| 713 | Goodkey Weedmark & Associates Limited | Ottawa |
| 714 | Greenview Environmental Management Limited | Bancroft |
| 715 | GRIT Engineering Inc | Stratford |
| 716 | Ground Engineering Consultants Ltd. | Regina |
| 717 | Groupe ABS inc. | Anjou |
| 718 | Groupe ABS inc. | Blainville |
| 719 | Groupe ABS inc. | Gatineau |
| 720 | Groupe ABS inc. | Longueuil |
