Companies catalogue
- O'Malley's Catering and Rental Ltd, Newmarket
- OCG Detailing, Markham
- OK Tire, Calgary
- OK Tire, Calgary
- OK Tire, Calgary
- OK Tire, Calgary
- OVO Toronto Flagship, Toronto
- Oak Park Deli, Toronto
- Oakville Dry Cleaners, Oakville
- Oakville SHT Acupuncture & Herbs Clinic, Oakville
- Occasions & Platters Plus Inc, Markham
- Odette Novielli - State Farm Insurance Agent, Innisfil
- Oggi Catering, Vaughan
- Old Country Shop, Toronto
- Old Mill Cadillac Chevrolet Buick GMC Ltd., Toronto
- Old Motorcycle Shop, Calgary
- Old Navy, Mississauga
- Old Navy, Brampton
- Old Navy, Vaughan
- Old Navy, Vaughan
- Olsen Europe, Pickering
- Olsen Fashion Canada Inc, Toronto
- Olympic Food & Cheese Mart, Toronto
- Omega Massage & Wellness, Calgary
- Once Upon A Child, Vaughan
- One Cell Solutions - Telus, Toronto
- One Size Wholesale, Toronto
- One-10 Mobiles & Computers, Toronto
- Onirak Fashion, Toronto
- Ontario Acoustic Supply Inc, Toronto
- Ontario Auto Repair, Mississauga
- Ontario Carpet, Mississauga
- Ontario College of Traditional Chinese Medicine, Markham
- Ontario Safety Products Inc, Scarborough
- Oracle Massage Therapy, Calgary
- Oracle Massage Therapy, Calgary
- Orbit Family Cleaners, Toronto
- Orchard Cleaners, Markham
- Original, Toronto
- Oro Caffe Inc, Tavagnacco
- Orthopaedic Massage Consultants, Calgary
- Oscar Cleaners, Toronto
- OshKosh B'gosh, Brampton
- OshKosh B'gosh, Brampton
- Out On The Street Inc, Toronto
- Over The Rainbow, Toronto
- Oxford Cleaner, Richmond Hill
- Oyster Time Inc, Toronto
- oil heating furnace repair service installation inspection plus firewood, Egbert