| Amritech Computer Systems Ltd | British Columbia |
| AMS Computer Group | British Columbia |
| Amur Financial Group, Inc. | |
| Amyuni Technologies, Inc. | Quebec |
| AN Design | Ontario |
| Anaergia | |
| Anahita | British Columbia |
| Analog Dog Creative Ltd | |
| Analogue Media Technologies, Inc. | |
| AnalysisWorks | |
| Analystik, Inc. | Quebec |
| AnalystSoft | British Columbia |
| Analytico | Ontario |
| Analytics4Life | |
| Analyz | Quebec |
| Analyze Re | Nova Scotia |
| Analyzer Software, Inc. | Ontario |
| Anand Software Consulting, Inc. | Ontario |
| AnaSoft, Inc. | Alberta |
| Ancell Marketing | British Columbia |
| Ancentury International, Inc. | Ontario |
| Anchor Marine Electric Ltd | British Columbia |
| AND Corporation | Ontario |
| Andar Software Ltd | Ontario |
| Anderson College of Health, Business and Technology | |
| Andgo | |
| Andino Distribution, Inc. | Quebec |
| Andira Pharmaceuticals | British Columbia |
| Andlor Logistics Systems, Inc. | British Columbia |
| Andorix | Ontario |
| Andornot Consulting, Inc. | British Columbia |
| André-P. Boulet | |
| Andrea Coutu | British Columbia |
| Andrei Marukovitch | Ontario |
| Andrew Burleigh | Prince Edward Island |
| Andrew Kelly | Ontario |
| Andrew Pallant | Ontario |
| Andrich Media | Manitoba |
| Androcom | Ontario |
| Android Authority | British Columbia |
| Android Labs Montreal | Quebec |
| Androïde | Quebec |
| Andromeda Computer Systems Ltd | Alberta |
| Andromeda Technologies | Quebec |
| Anduro Marketing | Alberta |
| Andy's Database (DB) Help! | Ontario |
| Anekdotes Communications, Inc. | Quebec |
| Anessa | New Brunswick |
| Anessa Biogas Software | |
| Angany, Inc. | Quebec |