Companies catalogue
- H2O Sporting Products, Waterloo
- H2nanO, Kitchener
- HD Supply Brafasco, London
- HG -INNOVATIVE AGRICULTURAL PRODUCTS, Mount Brydges
- Hacienda Leasing Inc, Blandford-Blenheim
- Hair Assurance, Waterloo
- Hamilton Air cargo & Logistic Services, Hamilton
- Hamilton LED, Hamilton
- Hanover Travel Svc & Customs, Kitchener
- Hardi Inc, London
- Harrison Pensa LLP, London
- Harvest Internet Solutions Inc, Kitchener
- Hatts Off Specialized Services Inc, Waterloo
- Headabove International, London
- Heartland Architectural, Elmira
- Hendrickson International, Itasca
- Hensall & District Co-op, Ailsa Craig
- Hensall District Co-Operative Inc, London
- Hensall District Co-Operative Inc, Parkhill
- High Top Tailor, Kitchener
- Hockey Inc, Cambridge
- Holiday Travel, Kitchener
- Home Comfort Center, London
- Home Lighting Factory Outlet, Hamilton
- Home Lighting Factory Outlet, Hamilton
- Home Lighting Factory Outlet, Burlington
- Honeyland Ag Services, Ailsa Craig
- Hostas Anytime, Bloomingdale
- Hostnow - Website Hosting, Kitchener
- House of Angels, Kitchener
- Huawei Technologies Co., Ltd., Waterloo
- Hudson's Bay Vending, Waterloo
- Hully Gully The Ultimate Toy Store, London
- Human Brand Experience Consultants, London
- Hunter Specialty Steel Sales, Stratford
- Huron Perth Ag Service Inc., Woodham
- Huron Tractor Arva, Exeter
- Hy-Mark, London
- Hydronic Solutions Inc., Waterloo