| BriskPoint, Inc. | Ontario |
| Bristol Business Machines | Newfoundland and Labrador |
| Britec Computer Systems Ltd | Alberta |
| Briteweb | British Columbia |
| British Columbia Institute of Technology | British Columbia |
| British Columbia Institute of Technology - Computing & Information Technology | British Columbia |
| British Columbia Institute of Technology - Mathematics | British Columbia |
| British Columbia Investment Management Corporation | |
| British Columbia Securities Commission | |
| Briva Finance | |
| Brix2Media | |
| Briza, Inc. | |
| Brizi, Inc. | Ontario |
| Brizo FoodMetrics | |
| BRMG | |
| BRNT Designs | |
| Broad Reach Communications, Inc. | |
| Broadband Surfer Canada, Inc. | Alberta |
| BroadbandTV Corporation | British Columbia |
| BroadConnect Telecom | Ontario |
| Broader Than Broadway | Ontario |
| Broadport Canada, Inc. | Alberta |
| Broadview Networks | Manitoba |
| Broadview Software | Ontario |
| BroadView Software, Inc. | Ontario |
| Brock Electronics Ltd | Ontario |
| Brock Solutions | |
| Brock University | Ontario |
| Brock University - Department of Computer Science | Ontario |
| Brock University - Department of Mathematics and Statistics | Ontario |
| Brock University - Information Technology Services | Ontario |
| Brockton Electronics Ltd | British Columbia |
| Broker Link Software, Inc. | British Columbia |
| Brokerage, Inc. | |
| Brome Conseil | Quebec |
| Brooding Artist Website Design | Alberta |
| Brooke Telecom Co-operative Ltd | Ontario |
| BrooksNET | |
| Brossard Informatique | |
| Brother International Corporation (Canada) Ltd | Quebec |
| Brown & Associates Consulting Group, Inc. | Ontario |
| Brown & Cohen | |
| Brown Communications Group | Alberta |
| Brownell Networks Group | Nova Scotia |
| Browse AI, Inc. | |
| Broy Engineering Ltd | Ontario |
| Bruce Durward | Ontario |
| Bruce Telecom | Ontario |
| Bruce-Grey Linux Users Group | Ontario |
| Brunelle Électronique & Informatique | Quebec |