Dundas, Ontario, Canada All businesses in Dundas, Ontario, Canada. Popular categories in Dundas, Ontario, Canada: Photographers Services Churches Insurance Screen Printing Roofing Banks Convenience Stores Internet Masonry Contractors Plumbing Dancing Instruction View all categories Last updates in Dundas, Ontario, Canada: Photographers Services Churches Insurance Screen Printing Roofing Banks Convenience Stores Internet Masonry Contractors Plumbing Dancing Instruction Dundas Lock & Key Inc Business in Dundas (Ontario) Updated: 05/12/2026 6:22 am