| Tajan, Inc. | |
| Take The Leaf Designs | Ontario |
| Take Two, Inc. | Manitoba |
| TakeToRise Computer | Ontario |
| Taking IT Mobile Data Solutions, Inc. | Ontario |
| Taknology (Canada), Inc. | Ontario |
| Takson Technology Ltd | Ontario |
| Taktik Airsoft | |
| TAL Group | |
| Talcura Technologies, Inc. | Ontario |
| Taleam Systems | |
| Talent Factory | |
| Talent Montréal | |
| Talent Payment Services | |
| TalentClick Workforce Solutions, Inc. | |
| TalentEgg, Inc. | |
| TalentFlow | Ontario |
| TalentLab, Inc. | Ontario |
| TalentNet | |
| Tali AI | |
| Talisman Software, Inc. | Ontario |
| Talium Communication | Quebec |
| Talk2Me.com | Ontario |
| Talkatoo, Inc. | Nova Scotia |
| Talkwireless | Ontario |
| Tall City Telecom | |
| Tall Grass Ventures | |
| Tall Pppy | Ontario |
| Tallsoft Computing Ltd | Ontario |
| Talou | British Columbia |
| Talsom | |
| Tamaani Internet | Quebec |
| Tamara McIntosh Designer | Ontario |
| Tamarack Computers | Northwest Territories |
| Tamco Technologies of Canada Ltd | Ontario |
| TAME Search, Inc. | Ontario |
| TAMVOES Health, Inc. | |
| Tanda technologies, Inc. | Ontario |
| Tandem Expansion Found | Quebec |
| TandemLaunch, Inc. | Quebec |
| Tandis | Ontario |
| Tandis, Inc. | Ontario |
| Tandm Digital Marketing | Ontario |
| TANDsoft | Quebec |
| Tangam Systems | Ontario |
| Tangent Computer Services Ltd | British Columbia |
| Tangente Communication | Quebec |
| Tangentia | Ontario |
| Tangerine Software, Inc. | Quebec |
| Tangerine Technology | |