| Art Systèmes Canada, Inc. | Quebec |
| Art Total Multimédia | Quebec |
| Art-D | Ontario |
| Art-Step | Quebec |
| Art2Go | Ontario |
| Artaflex, Inc. | Ontario |
| Artbiz | Alberta |
| Artboard Studio | |
| Artease | Ontario |
| Arteca | Quebec |
| Artech Electronics Ltd | Quebec |
| Artefactual Systems, Inc. | British Columbia |
| Arter Kirkwood & Associates | Alberta |
| Arteria AI | |
| Artform | Ontario |
| Arthemedia Design Studio | Quebec |
| Arthritis Research Canada | |
| Arthur and associates, inc. | Ontario |
| Artifact5 | Quebec |
| Artifex Media Group, Inc. | Quebec |
| Artificial Agency, Inc. | |
| Artificial Intelligence In Medecine, Inc. | Ontario |
| Artiiseo | |
| Artik Design | |
| Artinbox Studios | Quebec |
| Artisan2k | Quebec |
| Artiste QB Net, Inc. | |
| Artlogic | Quebec |
| ARTMS, Inc. | |
| Arts Avenue International, Inc. | |
| Arts Management Systems Ltd | Alberta |
| Artscript Canada Web Design | Alberta |
| Artshop.ca | Ontario |
| ArtSites.ca | British Columbia |
| ArtSoft.ca | Ontario |
| Artsversus Mutlimédia | Quebec |
| Arttina | Ontario |
| Artyfacts Canada | Alberta |
| Arvana Design Studios | Ontario |
| Arvik Innovation | |
| Arvizio, Inc. | |
| Arvo A.I. Ltd | |
| Arvox, Inc. | Quebec |
| ARXIQ | Alberta |
| ARxIUM | |
| Arxtech Canada | Quebec |
| Arxus | Saskatchewan |
| Arylla, Inc. | |
| Arzosoft, Inc. | Ontario |
| AS Plus Informatique, Inc. | |