Business groups starting with "D"
- D & A Mac Leod CO Ltd - Davery Homes
- Davey Tree Svc Ltd - Del Equipment Ltd
- Delcan Corp - Depanneur Shell
- Depanneur Shell Select - Dickerson Automotive
- Dickie Dee Ice Cream - Distinctive Dentistry
- Distinctive Designs Furniture - Dominion Hotel
- Dominion of Canada General Ins - Dr. Bishop and Associates Optometry
- Dr. Bob's Storage - Dufferin Games
- Dufferin School - Dynomite Detailing Inc.