| Brian Cline | Ontario |
| Briarlane Rantal Property Management, Inc. | |
| Brice Sanchez | |
| Brice, Inc. | |
| brickhost | Ontario |
| Bricks to Ebiz.com | Ontario |
| Brickworks | Ontario |
| Bridge Call, Inc. | |
| Bridge Systems | |
| Bridge24 | Quebec |
| BridgePoint Financial Services, Inc. | |
| Bridges Human Resources | Quebec |
| Bridgetech Systems | Ontario |
| Bridging Finance, Inc. | |
| Bridgit | |
| Brief Legal Software | British Columbia |
| Briefed.in | Ontario |
| Briercrest College | |
| Bright + Early | |
| Bright Angel Therapeutics | |
| Bright Health | |
| Bright Idea Graphics | |
| Bright Light Software | Alberta |
| Brighten Optics Ltd | British Columbia |
| Brighter Digital, Inc. | Alberta |
| Brightflock, Inc. | Nova Scotia |
| BrightJet Software | |
| Brightlabs, Inc. | |
| Brightlights, Inc. | Ontario |
| Brighton College | |
| BrightOrder, Inc. | |
| Brightouse Branding Group | Ontario |
| BrightSite | Ontario |
| Brightspark | Ontario |
| Brikson Computer Cabling | New Brunswick |
| Brilliance Computer Technologies | Nova Scotia |
| Brilliant Catalyst | Ontario |
| Brilliant Labs | New Brunswick |
| Brilliant Social Media, Inc. | British Columbia |
| Brilliant Solutions | Ontario |
| Brim Financial, Inc. | Ontario |
| Brink Bionics, Inc. | |
| BRIO | |
| Brio Innovation | |
| Brio Professional Services | Quebec |
| Briowireless, Inc. | Quebec |
| Brisco Capital Partners Corporation | Alberta |
| Brisio Innovations, Inc. | |
| Brisk Mobile, Inc. | Ontario |
| Briskal Solutions Ltd | Alberta |