- Passenger Ground Transportation, Oakville
- Passenger Vehicle Dealers, Oakville
- Pasta Restaurants, Oakville
- Paving Contractors - Driveway, Road, Walkway, Oakville - Installation, Repair & Seal - Asphalt & Concrete Pavers
- Pawn Shops, Oakville
- Personal Care, Oakville
- Personal Services, Oakville
- Personal Trainers, Oakville
- Pest Control Services, Oakville - Termite Control, Insects & Bed Bug Treatment - Pest Control Companies
- Pet Care Services, Oakville
- Pet Grooming & Boarding Services, Oakville
- Pet Shops & Supplies, Oakville
- Pets Stores & Pet Supplies , Oakville
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- Pharmacy & Drug Stores, Oakville - Drugstore - Chemists
- Photo & Picture Frames, Oakville - Picture Framing
- Pizza Restaurant 1 Of 2, Oakville
- Plating Equipment & Supplies, Oakville - Gold, Chrome, Copper, Zinc, Brass, Nickel Plating, etc
- Plating Supplies & Equipment, Oakville
- Plumbers & Plumbing Contractors, Oakville - Installation, Repair & Replace Services
- Plumbing - Sewer & Drain Cleaning & Repair, Oakville
- Preschools, Oakville
- Printing Services & Publishing Services, Oakville
- Product Repair Services, Oakville
- Professional, Oakville
- Professional Services, Oakville
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