| Quantisweb | Quebec |
| Quantolio | |
| Quantropi, Inc. | |
| Quantum Alberta | Alberta |
| Quantum Algorithms Institute | |
| Quantum BC | |
| Quantum Benchmark, Inc. | |
| Quantum BioPharma | |
| Quantum Bridge | |
| Quantum Capture | |
| Quantum Colab | |
| Quantum Communciations | Nova Scotia |
| Quantum Days | |
| Quantum Graphics & Consulting | |
| Quantum Horizons Alberta | |
| Quantum Industry Canada | |
| Quantum Mob | |
| Quantum Sensing & Ultracold Matter Lab | |
| Quantum SEO Labs | |
| Quantum Strategy Institute | |
| Quantum Technology Recruiting, Inc. | |
| Quantum Valley Ideas Lab | |
| Quantum Valley Investments | Ontario |
| Quantum Venture Studio | |
| Quantum Whisper | Quebec |
| Quantum-Safe Canada | |
| Quantum5x Systems, Inc. | Ontario |
| QuantumBricks, Inc. | Ontario |
| Quantumrun Foresight | |
| QuantumSmart | |
| QuantWave Technologies, Inc. | |
| Quaranteed Software | Quebec |
| Quark Venture | |
| Quarkus Media | Quebec |
| Quartech | |
| Quarterhill | |
| Quartermaster | |
| Quartier de l'innovation de Montréal | Quebec |
| Quartier de l’Innovation en santé - Montréal | |
| Quartier général de l’entrepreneuriat | |
| Quartz Imaging Corporation | British Columbia |
| Quasar Business Solutions, Inc. | British Columbia |
| Quaterback Digital | Ontario |
| Quatro Group Software Systems, Inc. | Ontario |
| Quattra SCS Ltd | Ontario |
| Qubic, Inc. | |
| Qubit3 Technologies | |
| Qubo Consulting Corporation | |
| Québec Innove | Quebec |
| Québec International | Quebec |