Companies catalogue
- O Gre De Votre Temps, Sherbrooke
- O Natural Hair Salon, Sherbrooke
- O'Lounge, St. Catharines
- OH! Accessories, Lincoln
- OLNEY | Photographe de Sherbrooke, Sherbrooke
- OLiV, Sherbrooke
- Oakdale Auto Service, St. Catharines
- Oakville Cycle & Sports, Oakville
- Oakville Divers, Oakville
- Oasis Energy Group Ltd., Calgary
- Objectif santé, Sherbrooke
- Obsession Hairdressing, Sherbrooke
- Ocera Therapeutics Inc, Sherbrooke
- Octane Hair Lounge, St. Catharines
- Olab Yoga, Sherbrooke
- Old Mill Artisans, Lincoln
- Old Port Dairy Bar, St. Catharines
- Old Town Goodies, Niagara-on-the-Lake
- Olymbec Developpement Senc, Saint-Laurent
- Olympic Collision Centre, St. Catharines
- Olympique Metal, Granby
- Omni Media Productions Ltd, Saint Catharines
- Omnimed, Cookshire
- Omniscient Technology, Sherbrooke
- On Demand Staffing, St. Catharines
- One 2 One, St. Catharines
- Online Calgary, Calgary
- Onot, Magog
- Ontario Concrete Raising Ltd., St. Catharines
- Ontario Early Years Centre Thorold, Thorold
- Ontario Street Service Centre, St. Catharines
- Ontario Tank Specialists Inc, St. Catharines
- OpenQue Networks Inc., Calgary
- Operational Insights, Pelham
- Optique De L'Estrie Inc, Sherbrooke
- Optique De L'Estrie Inc, Sherbrooke
- Opto-Réseau Rock Forest, Sherbrooke
- Opto-Réseau Waterloo, Waterloo
- Ordisecur, Magog
- Organic Lead Generation, Calgary
- Original Delivery, St. Catharines
- Orthofab (Manufacturier de fauteuils roulants), Sherbrooke
- Orthotic Works The, St. Catharines
- Ostéopathie Andrée-Anne Laurendeau, Sherbrooke
- Our Lady of Fatima YMCA Child Care Centre, St. Catharines
- Oxtal Solutions inc., Magog
- Oxybec Medical Inc, Sherbrooke
- Oz Importations, Sherbrooke
- odyssey salon, Saint Catharines