- Doshi Diagnostics
- Dots
- Dot's Beauty Salon
- Dot's Beauty Shop
- Dottie's Beauty Salon
- Double Dave's
- Double Dragon
- Double D'S
- Doublebee's Exxon
- Doubledave's Pizzaworks
- Doubletree Hotel
- Douds Stone
- Douglas County Bank
- Douglas Parking Company
- Doug's Auto Body
- Doug's Auto Repair
- Doug's Auto Sales
- Doug's Auto Service
- Doug's Automotive
- Doug's Barber Shop
- Dovebid
- Dow Jones
- Dowdle Butane Gas
- Down To Earth
- Down To Earth Landscaping
- Down Under
- Downing Displays
- Downtown
- Downtown Antiques
- Downtown Athletic Club
- Downtown Auto Sales
- Downtown Barber Shop
- Downtown Cafe
- Downtown Chiropractic
- Downtown Cleaners
- Downtown Deli
- Downtown Development Authority
- Downtown Diner
- Downtown Locker Room