| Kaméléons & Cie | Quebec |
| kamiCode | Quebec |
| Kamloops Computer Centre | British Columbia |
| KamNic, Inc. | Quebec |
| Kamputers, Inc. | Ontario |
| Kamran, Inc. | Ontario |
| Kanata Electronic Services Ltd | Ontario |
| Kanata Tech, Inc. | British Columbia |
| Kanda Média | Quebec |
| Kane Biotech | |
| Kanguru Digital Agency | |
| Kanif | |
| Kanin Energy | Alberta |
| Kano Applications, Inc. | |
| Kantaloup | Quebec |
| Kanto AV Systems | British Columbia |
| Kapital Solutions, Inc. | |
| Kapshi Consultancy | Alberta |
| Kardium, Inc. | |
| Kare Chemical Technologies, Inc. | |
| Kargo Electric Vehicles | Quebec |
| Karmatic | |
| Karrot Canada Corporation | |
| Kartouche Plus | |
| KaSeD | Ontario |
| Kashoo | |
| Kasia Wakarecki | Ontario |
| Kaspian Innovations, Inc. | |
| Kastomp Game Studios | Ontario |
| KaSYS Canada | Quebec |
| Katalyst Data Management | Alberta |
| Katarsis | Quebec |
| Katipult Technology Corporation | |
| KatloTech Communications | |
| Katlyn International, Inc. | Ontario |
| Kave Wall New Media | British Columbia |
| KaVoom Software, Inc. | British Columbia |
| Kawartha Diagnostic Imaging | Ontario |
| Kawartha.com | Ontario |
| Kaya Systems, Inc. | Ontario |
| Kayak Marketing | |
| Kaypok | Ontario |
| Kaytech Software Canada, Inc. | |
| Kaytronics | Quebec |
| Kayvium Corporation | Ontario |
| Kayzworks | Ontario |
| KBA Systems | Ontario |
| KBE Information Security, Inc. | |
| KBrown Design | Nova Scotia |
| KCB Software | |