| 261 | Blackwell Structural Engineers | Victoria |
| 262 | Blackwell Structural Engineers | Waterloo |
| 263 | Blondin Fortin & Associés | Laval |
| 264 | BluMetric Inc. (WESA) | Yellowknife |
| 265 | Boge & Boge (1980) Ltd. | Winnipeg |
| 266 | Boge & Boge (1980) Ltd. | Calgary |
| 267 | Boge & Boge (1980) Ltd. | Saskatoon |
| 268 | Boge & Boge (1980) Ltd. | Whitehorse |
| 269 | Boissonnault McGraw & Associates Ltd. | Campbellton |
| 270 | Bouthillette Parizeau inc. | Montréal |
| 271 | Bouthillette Parizeau inc. | Edmonton |
| 272 | Bouthillette Parizeau inc. | Gatineau |
| 273 | Bouthillette Parizeau inc. | Kelowna |
| 274 | Bouthillette Parizeau inc. | Laval |
| 275 | Bouthillette Parizeau inc. | Lévis |
| 276 | Bouthillette Parizeau inc. | Longueuil |
| 277 | Bouthillette Parizeau inc. | New Westminster |
| 278 | Bouthillette Parizeau inc. | Ottawa |
| 279 | Bouthillette Parizeau inc. | Québec |
| 280 | BPTEC Engineering Ltd. | Edmonton |
