Orchard Paint and Paper Ltd
Orchard Valley Glass Ltd
Orchidée Nettoyage Tapis
Ords Electrical
Oredco
Oredco Organics
ORegan Designs
OReilly Moving and Storage Ltd
Organic Landscaping
Organo-Natura Echo-Tech
Oriel Windows and Glass
Original Renovations
Original Roofing and Siding
Orillia and District Construction Association
Orillia Cabinet and Wood Products
Orillia Glass and Mirror Ltd
Orillia Kitchens
Orillia Natural Gas Ltd
Orillia Precast Concrete Limited
Orillia Sandblasting and Painting