Companies catalogue
- O B Kitchen, Regina
- O-I Brampton, Brampton
- OMNI Surgery + Anti-Aging Centre, Regina
- OPA! of Greece Quance Street, Regina
- OPA! of Greece Rochdale Station, Regina
- OSI-CAN, Regina
- Oakville Auto Radiator, Oakville
- Obasa Suites Regina, Regina
- Off the Leash Pet Grooming Inc., Regina
- Old #1 Firehall Park, Regina
- Old #1 Firehall Park, Regina
- Olena Nardin Estetica, Regina
- Olheiser Heating & Air Cond, Guelph
- Olive Garden - Coming Soon, Regina
- Olympia Cabinets KW Inc, Waterloo
- Ombudsman Saskatchewan, Regina
- Omega Lounge, Regina
- On The Go Haul & Tow Inc. Regina Farm Equipment Hauling & Towing (Air Drills), White City
- Onasanya Lanre Dr, Regina
- Ong-Tone L Dr, Regina
- Ontario Autobody Supplies, Breslau
- Ontario Centre for Classical Sport, Mississauga
- Opa!, Regina
- Opa! Of Greece Grasslands at Harbour Landing, Regina
- Open Skies MRI Diagnostics, Regina
- Open Sky Retreat, Regina
- Optical in Real Canadian Superstore, Regina
- Optical in Real Canadian Superstore, Regina
- Optical in Real Canadian Superstore, Regina
- Optimist Arena, Regina
- Optimist Park, Regina
- Optimum Realty Regina - Skyview Homes for Sale, Regina
- Optimum Talent Regina, Regina
- Options Mediation Inc., Regina
- Oral Arts Dental Studio, Regina
- Orange Julius, Regina
- Organization Of Saskatchewan Arts Councils (OSAC), Regina
- Oriental Furniture & Craft, Kitchener
- Oriental Spa, Regina
- Original Joe's Restaurant & Bar, Regina
- Oromo Store, Regina
- Osama Edarous Photography, Regina
- Oskana Centre, Regina
- Osteoporosis Canada Regina Chapter, Regina
- Our Lady of Peace Parish, Regina
- Our Savior's Lutheran Church, Regina
- Outer Edge Adventure park, Lumsden
- Overdrive Automotive, Breslau
- Oz Motorsports, Brampton