| BiR Consulting, Inc. | Ontario |
| Bircis | |
| Birdview PSA | Ontario |
| birkoss.com | Quebec |
| BIS Safety Software | |
| Bishop's University | Quebec |
| Bishop's University - Computer Science | Quebec |
| Bishop's University - Computer Science Students Theses | Quebec |
| Bishop's University - Group of Research on Topology, Computation, and Imagery | Quebec |
| Bishop's University - Parallel and Real-Time Research Group | Quebec |
| Bishop’s University - Computer Science | Quebec |
| Bit Bat Studios | British Columbia |
| Bit by Bit Computer Services, Inc. | Alberta |
| Bit Space Development Ltd | |
| Bitaccess | |
| Bitacess | Ontario |
| Bitblock Systems, Inc. | British Columbia |
| Bitbuy Technologies, Inc. | Ontario |
| Bitesite, Inc. | |
| Bitfarms | Quebec |
| bitFLY Design | Ontario |
| bitHeads, Inc. | Ontario |
| Bitlink Technology | Saskatchewan |
| bitMART.net | Ontario |
| BitNational, Inc. | |
| BitRank Verified | British Columbia |
| Bits In Glass | Alberta |
| BITS Of Knowledge | Ontario |
| Bitswift Technology Solutions, Inc. | Ontario |
| Bittele Electronics, Inc. | Ontario |
| Biz-Line | Ontario |
| Biz-Web.ca | British Columbia |
| Bizbee Creative | British Columbia |
| Bizcom Telecom | British Columbia |
| BizNets.com | Ontario |
| Bizont | |
| Bizquad Technologies, Inc. | Ontario |
| BizTech College | Ontario |
| Biztree, Inc. | Quebec |
| bizZone, Inc. | Ontario |
| BJ Média | Quebec |
| BJF Trading Group | Ontario |
| BJH Consulting | Alberta |
| BJW Computers Electronics | New Brunswick |
| BK Two-Way Radio Ltd | British Columbia |
| BKL Design Group, Inc. | Ontario |
| bl.solutions | Quebec |
| Black Atlas Creative | Saskatchewan |
| Black Bike Media, Inc. | Ontario |
| Black Boys Code | |