| Batipi | Ontario |
| Baton Simulations | Quebec |
| Bats in the Belfry Creative, Inc. | Ontario |
| Batteries du Quebec, Inc. | Quebec |
| Battleship | |
| Bauer Systems Group | Ontario |
| Bausch Health Companies, Inc. | |
| Bawtree Software | British Columbia |
| Bay Systems | Ontario |
| Bay Systems Technologies, Inc. | |
| Bay Technology Solutions | |
| Baylaan Technologies, Inc. | Ontario |
| Bayleaf Software | British Columbia |
| Baylin Technologies | |
| Baylis Medical Company, Inc. | |
| Baylis Medical Technologies | |
| Bayridge Printer Pros | Ontario |
| Baytek Systems | Ontario |
| Baytides Management, Inc. | Ontario |
| Bazinga! | British Columbia |
| BBDO Canada | Ontario |
| BC Cancer Research | |
| BC Compusolve, Inc. | British Columbia |
| BC Computech | British Columbia |
| BC Hydro | British Columbia |
| BC Neuroimmunology | |
| BC Robotics | British Columbia |
| BC Tech Association | British Columbia |
| BC Web Solutions | British Columbia |
| BC Web, Inc. | British Columbia |
| BCcampus | British Columbia |
| BCD Automation, Inc. | |
| BCE, Inc. | Quebec |
| BCF Ventures | Quebec |
| BCG Canada, Inc. | Saskatchewan |
| BCI Technologies | Quebec |
| BCM Computer Technologies | Ontario |
| BCNET | British Columbia |
| BCOM Computer Centre, Inc. | Alberta |
| BCS Automation Ltd | Ontario |
| BCT International | Ontario |
| BCTechJobs | British Columbia |
| BDA Entertainment, Inc. | Ontario |
| BDATA Solutions, Inc. | |
| BDC Capital de risque | Quebec |
| BDM Healthware, Inc. | Saskatchewan |
| BDO Lixar | Ontario |
| Be Bold Branding Agency | Alberta |
| Be Loud Communications | Ontario |
| Be Responsive Media, Inc. | |