| Avetti.com Corporation | Ontario |
| AVH Technologies, Inc. | Quebec |
| AVHoster | Ontario |
| avianor.com | |
| Avicanna | |
| Avicenna Research | Ontario |
| Avidbots Corporation | Ontario |
| Avigilon | British Columbia |
| Avigna Systems, Inc. | Ontario |
| Avinus | |
| Avinya Technology | |
| Avion Technologies, Inc. | |
| Avionnerie Valdor | |
| Avior Produits Intégrés, Inc. | |
| Avir Pharma | |
| Aviseo | |
| Avison Young (Canada), Inc. | |
| Avitrax | Alberta |
| Aviva Solutions, Inc. | Quebec |
| Avivi | Alberta |
| Avivo Biomedical, Inc. | British Columbia |
| Aviya Technologies, Inc. | |
| AVL Track, Inc. | Quebec |
| Avocado Web Design | Ontario |
| AVolution.net | Ontario |
| Avonni | |
| Avotus | Ontario |
| AVP MFG & Supply, Inc. | Ontario |
| Avrij, Inc. | |
| Avrupa Minerals Ltd | |
| AVS Security, Inc. | British Columbia |
| AVT.ca | |
| Avtech Electrosystems Ltd | Ontario |
| Awake Labs | |
| Aware360 | |
| AWC Consulting | Ontario |
| Awedity Creative, Inc. | |
| Awee | |
| Awesense | |
| Awesome Web Designs | |
| Awkward Media | |
| AWS Automation | |
| Ax Computer Consulting | Alberta |
| AX2, Inc. | |
| Axamit | Quebec |
| Axanti | Quebec |
| AxCell Labs | |
| Axe Création | Quebec |
| Axelys | |
| AXES Network | Quebec |