Companies catalogue
- OATC - Peterborough, Peterborough
- OMG (Oasis Mediterranean Grill), Peterborough
- OPIRG Carleton (Ontario Public Interest Research Group Carleton), Ottawa
- Oak Grove Veterinary House Call Services, Ottawa
- Oasis Bar & Grill, Cobourg
- Olde Stone Brewing Company, Peterborough
- Omemee Veterinary Hospital, Kawartha Lakes
- On the Line Communications, Smiths Falls
- One Eighty Sports Pub, Peterborough
- One Stop Naturals, Val Caron
- Ontario Association-Gen, Peterborough
- Ontario Child Safety Netw, Peterborough
- Ontario Federation of Anglers & Hunters, Peterborough
- Ontario Line Clearing & Tree Experts Inc, Cobourg
- Ontario Turtle Conservation Centre, Peterborough
- Ontario Waterpower Association, Peterborough
- Ops Township Community Centre, Lindsay
- Options Youth, Ottawa
- Orchestras Canada / Orchestres Canada, Peterborough
- Organized Focus Learning & Wellness Centre, Mississippi Mills
- Orleans Gardens Chiropractic, Ottawa
- Orleans Shawarma Prince, Ottawa
- Orleans Veterinary Hospital, Ottawa
- Osgoode Youth Association(O-YA), Ottawa
- Otonabee Animal Hospital, Peterborough
- Otonabee Appraisal Ctr, Peterborough
- Ottawa Art Therapy, Ottawa
- Ottawa Beach Water Quality, Ottawa
- Ottawa Booth Centre, Ottawa
- Ottawa Buddhist Society, Ottawa
- Ottawa Health and Wellness Clinic, Ottawa
- Ottawa Holistic Wellness, Ottawa
- Ottawa Hospital Civic Campus -Urology Clinic, Ottawa
- Ottawa Ostomy Support Group, Ottawa
- Ottawa River Regulation Planning Board, Gatineau
- Ottawa Shaolin, Ottawa
- Ottawa Torah Institute, Ottawa
- Ottawa Valley Weavers and Spinners Guild, Ottawa
- Ottawa Wedding Decor Inc, Ottawa
- Ottawa Wedding Photographer, Ottawa
- Ottawa Wellness Centre, Ottawa
- Ottawa Window Tinting, Ottawa
- Ottawa Wing Chun Academy, Ottawa
- Ottawa wedding Officiant Dwight Saunders, Ottawa
- Ottawa wedding photographer - Eva Hadhazy Photography, Ottawa
- Outdoors Cards, Peterborough
- Overeaters Anonymous, Ottawa
- OvertheAtlantic.com, Greater Sudbury
- Oxford College of Arts, Business, and Technology, Peterborough