| Axesstek | Quebec |
| Axia FibreNet | |
| Axia FibreNet Ltd | Alberta |
| Axial | Quebec |
| Axial Games | |
| Axialmedia | Quebec |
| Aximetrix Automation | Quebec |
| Axiom | |
| Axiom Digital Services | Ontario |
| Axiom Performance, Inc. | Ontario |
| Axiom Real-Time Metrics, Inc. | Ontario |
| Axiom Zen | |
| Axiomatic Technologies Corporation | Ontario |
| AxiomSolution | Ontario |
| Axis Photonique, Inc. | |
| Axis Sales Accelerator | |
| Axis Technical Services | British Columbia |
| Axolotl Bioscience | |
| Axon Development Corporation | Saskatchewan |
| Axone Intelligence | Quebec |
| Axonify, Inc. | Ontario |
| Axper | Quebec |
| Axsera | Quebec |
| AXSES SCI | Nova Scotia |
| AXSource | |
| Axxium Vision | Quebec |
| Axxon Computer Corporation | Ontario |
| Axya | |
| AxyalCom, Inc. | Quebec |
| AXYS Technologies, Inc. | British Columbia |
| AyaNova | British Columbia |
| Ayasoftware | |
| Ayima Ltd | British Columbia |
| Aynils | |
| Ayogo | British Columbia |
| Ayograph | Quebec |
| AyoWeb | Quebec |
| Aypa Power | |
| AYS Software | Ontario |
| AZ Blockchain | Ontario |
| AZBrand.ca | |
| Azeal Digital | |
| Azimut POS Solutions | |
| AZIMUT Solutions Géomatiques | Quebec |
| Azionic | |
| Azor Biotek | |
| Azor Group | Alberta |
| Azorus | Nova Scotia |
| Azper Technologies | |
| AZRAK | |