| Bark Communications | Ontario |
| Barker Computers | Manitoba |
| Barking Dog Studios | Ontario |
| Baron Biosystems Ltd | |
| Barret and Welsh | Ontario |
| Barrie Web | Ontario |
| Barrington Consulting | Nova Scotia |
| Barrington Consulting Group | |
| Barrington Edge | Nova Scotia |
| Barry McKay Consulting | Manitoba |
| BartSoft | |
| BASA Technologies | Ontario |
| Basalte | Quebec |
| Base Camp Connect | Quebec |
| Base Technology Ltd | British Columbia |
| Baseband Technologies | Alberta |
| BaseCorp Learning Systems | Alberta |
| Baseline | |
| Baseline Business Geographics, Inc. | Prince Edward Island |
| Basement43 | Ontario |
| Basetwo AI | |
| BASIS by BarcodeApps | Ontario |
| Basix.ai | |
| Basta Communication | Quebec |
| Bateman Design Group | Ontario |
| Batipi | Ontario |
| Baton Simulations | Quebec |
| Bats in the Belfry Creative, Inc. | Ontario |
| Batteries du Quebec, Inc. | Quebec |
| Bauer Systems Group | Ontario |
| Bausch Health Companies, Inc. | |
| Bawtree Software | British Columbia |
| Bay Systems | Ontario |
| Baylaan Technologies, Inc. | Ontario |
| Bayleaf Software | British Columbia |
| Baylin Technologies | |
| Baylis Medical Company, Inc. | |
| Baylite Studios | Nova Scotia |
| 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 |