| TelASK Technologies, Inc. | Ontario |
| Telcan | Ontario |
| TelcoBridges | Quebec |
| Telcom Technologies Ltd | Ontario |
| Telcon Datvox Cabling Solutions | Ontario |
| TelDesign, Inc. | Ontario |
| Teldio Corporation | |
| Teldisco, Inc. | Ontario |
| Télé-Câble La Conception, Inc. | |
| Tele-Plus Management, Inc. | Alberta |
| Télébec | Quebec |
| Telebyte Communications, Inc. | Alberta |
| Telecan Space | |
| Téléciné Multimédia, Inc. | Quebec |
| TeleCity Electronics | Ontario |
| TELECO Supply Co. Ltd | Ontario |
| Telecom Canada | Ontario |
| Telecom Enterprise | |
| Telecom North America, Inc. | Quebec |
| Telecom Resource Corporation | Ontario |
| Telecommander Corporation Ltd | Ontario |
| Télécommunication Opticom, Inc. | Quebec |
| Télécommunications de l'Est | Quebec |
| Télécommunications Grimard | Quebec |
| Telecommuting Consultants International, Inc. | Ontario |
| TeleCompute | Ontario |
| Telecon | Quebec |
| TeleConsult Group | Ontario |
| Teledisc Systems Ltd | Manitoba |
| Télédistribution Amos, Inc. | Quebec |
| Teledyne CARIS | |
| Teledyne DALSA | Ontario |
| Teledyne Lumenera | Ontario |
| Teledyne MEMS | |
| Teledyne OPTECH | |
| Teleflex Medical Canada, Inc. | |
| TeleGlobal | Ontario |
| Telegrams Canada | Ontario |
| Telehop | Ontario |
| Teleline Canada Ltd | Ontario |
| Télémarketing Performance | |
| TeleMED | |
| TelemetryTV | |
| Télénet Communications | Quebec |
| Telenium, Inc. | Manitoba |
| Téléphone Lambton Courcelles, Inc. | Quebec |
| Telephone Magic, Inc. | Ontario |
| Telephonic Communications, Inc. | |
| Téléphonne de Saint-Victor | Quebec |
| Telepin | Ontario |