| Centre for Distance Education | Nova Scotia |
| Centre for Entrepreneurship Education and Development | Nova Scotia |
| Centre for Ocean Applied Sustainable Technologies | |
| Centre for Ocean Ventures and Entrepreneurship | Nova Scotia |
| Centre for Security Governance | |
| Centre for Social Enterprise Development | Ontario |
| Centre for Social Innovation | |
| Centre for Women in Business | |
| Centre Hi-Fi | Quebec |
| Centre hospitalier de l'Université de Montréal | |
| Centre Informatique Giga-Tech | Quebec |
| Centre local de développement d'Antoine-Labelle | |
| Centre local de développement de Brome-Misssisquoi | |
| Centre local de développement des Basques | |
| Centre local de développement des Jardins-de-Napierville | |
| Centre local de développement du Haut-Saint-François | |
| Centre local de développement Rouyn-Noranda | |
| Centre of Excellence in Next Generation Networks | Ontario |
| Centre Québécois d’Innovation en Biotechnologie | |
| Centre Radiologique Sherbrooke | |
| Centre Réparatech | Quebec |
| Centre Réparation Électronique et Informatique | |
| Centre universitaire de santé McGill | |
| Centricity Research | |
| Centris.ca | |
| Centum Adetel Transportation Solution | Quebec |
| Centum Systems | Ontario |
| Centura Cash Register | Ontario |
| Centurion Group Ltd | Alberta |
| Century 2K Cabling Systems, Inc. | Newfoundland and Labrador |
| Century Computer | Nova Scotia |
| Century Graphic Supply | Ontario |
| Century Laser | Quebec |
| Ceragen, Inc. | |
| Cerait, Inc. | Ontario |
| CERASP | |
| CereCura Therapeutics | |
| Cerenyi.ai | |
| Ceritar Technologies, Inc. | Quebec |
| Cert Center Canada | |
| CertCana Systems Institute | Ontario |
| Certech Web Solutions | |
| Certicom Corporation | Ontario |
| CertiCraft Technologies, Inc. | |
| Certimail | Quebec |
| Certn | |
| Ceryx | Ontario |
| Cesaroni Technology, Inc. | |
| Cesium | Quebec |
| Cesmic Group Ltd | Ontario |