| 241 | Bouthillette Parizeau inc. | Lévis |
| 242 | Bouthillette Parizeau inc. | Longueuil |
| 243 | Bouthillette Parizeau inc. | Montréal |
| 244 | Bouthillette Parizeau inc. | New Westminster |
| 245 | Bouthillette Parizeau inc. | Ottawa |
| 246 | Bouthillette Parizeau inc. | Ottawa |
| 247 | Bouthillette Parizeau inc. | Québec |
| 248 | Bouthillette Parizeau inc. | Sainte-Thérèse |
| 249 | Bouthillette Parizeau inc. | Sherbrooke |
| 250 | Bouthillette Parizeau inc. | Toronto |
| 251 | Brown and Caldwell | Burnaby |
| 252 | Brownlee Beaton Kreke (Regina) Ltd. | Regina |
| 253 | Brunswick Engineering & Consulting Inc. | Saint John |
| 254 | BST Global | Tampa |
| 255 | Buchan, Lawton, Parent Ltd | Ottawa |
| 256 | Buchan, Lawton, Parent Ltd | Toronto |
| 257 | Building Innovation | Hamilton |
| 258 | Building Innovation | Vaughan |
| 259 | Bunt & Associates Engineering Ltd. | Victoria |
| 260 | Bunt & Associates Engineering Ltd. | Calgary |
