| Tecksoft, Inc. | Quebec |
| Tecnar | |
| Tecnet Canada | British Columbia |
| Tecnickrome Aéronautique, Inc. | |
| TecnInfra Solutions, Inc. | |
| Tecnita, Inc. | |
| Tecnopolis | Manitoba |
| TecQify | |
| TECSIS Corporation | Ontario |
| Tecskor Corporation | Alberta |
| Tecsys | Quebec |
| TED & ED | |
| TEDxConcordia | Quebec |
| TeejLab, Inc. | British Columbia |
| Teel Technolgies Canada | British Columbia |
| Tegh Tech Software Inc. | |
| Tehama | |
| Teition Solutions | British Columbia |
| Tejon Digital | |
| Tek Star | Ontario |
| Tek Wallet | |
| Tek-Knowledge | Alberta |
| Tek-Micro Informatique | Quebec |
| Tek@Net | Quebec |
| Tékalia Aéronautik (2010), Inc. | |
| Tekmap Consulting | Nova Scotia |
| Tekna | |
| Teknician Computer Services | British Columbia |
| Teknision, Inc. | Ontario |
| Teknokraft | |
| Tekpro Information Solutions, Inc. | British Columbia |
| Tekron Communication Systems, Inc. | Quebec |
| Teks2go | Ontario |
| TekSavvy Solutions, Inc. | Ontario |
| TekSolutions Canada | British Columbia |
| TekStaff | Ontario |
| TekStart Holdings, Inc. | Ontario |
| TEKTELIC Communications, Inc. | |
| Tektonic, Inc. | Ontario |
| Tektonik | Quebec |
| TekWizards | |
| Tekworks IT Services | British Columbia |
| Teky | British Columbia |
| Tekyhost | Ontario |
| Tel-e Technologies | Ontario |
| Tel-Harmonics | Ontario |
| Tel-Loc, Inc. | Quebec |
| Tel-Systems | Ontario |
| Tel-Tech Communication Services | Alberta |
| Telanet Canada, Inc. | Ontario |