| Acton Medical and Urgent Care | Acton |
| Credit Valley Diagnostic Centre | Milton |
| Gam Diagnostic Imaging, Oakville - Chemin Trafalgar, L'imagerie diagnostique | Oakville |
| Gam Diagnostic Imaging, Oakville - Hospital Gate, Imagerie diagnostique | Oakville |
| Halton Healthcare, Hôpital de Georgetown, Imagerie diagnostique, Georgetown Hospital | Halton Hills |
| Halton Healthcare, Hôpital du district de Milton, Imagerie diagnostique, Milton District Hospital | Milton |
| Halton Healthcare, Hôpital Trafalgar Memorial d'Oakville, Imagerie diagnostique, Oakville Trafalgar Memorial Hospital | Oakville |
| Mississauga Halton Central West Regional Cancer Program, Diagnostic Assessment Program (DAP) | Mississauga |
| One Vascular Imaging, Oakville | Oakville |
| Ontario Diagnostic Centres, Oakville, Imagerie Diagnostique | Oakville |
| Ontario Diagnostic Centres, Milton, Imagerie Diagnostique | Milton |
| Ontario Medical Imaging, Georgetown, Imagerie diagnostique | Georgetown |
| Ontario Mobile Imaging, Échographie mobile | Mississauga |
| Santé Ontario - Action Cancer Ontario | Toronto Centre-ville Centre |
| Trafalgar Cardiology | Oakville |
| True North Imaging, Oakville, Services de l'imagerie diagnostique | Oakville |
| WELL Health Diagnostic Centres, Cardiologie et radiologie | Milton |
| Wentworth-Halton X-Ray and Ultrasound, Oakville - Chemin Speers, Imagerie diagnostique | Oakville |
| Wentworth-Halton X-Ray and Ultrasound, Oakville - Chemin Old Bronte, Imagerie diagnostique | Oakville |
