| D A O'rawe - Dental practice activities |
| D Burnside - Installation of electrical wiring and fittings |
| D C Hillis - Other farming of animals |
| D E Brown & Co - Painting and glazing |
| D Gillespie - Maintenance and repair of motor vehicles |
| D H & S M Nesbitt - Agricultural service activities |
| D I Gaston - Other farming of animals |
| D J M Robinson & Son - Funeral and related activities |
| D J Maybin - Other farming of animals |
| D K McKee & Sons - Manufacture of other products of wood |
| D Kearney - Retail sale of meat and meat products |
| D Kennedy - Repair not elsewhere classified |
| D M Hopkins - Medical practice activities |
| D McCloskey - Other farming of animals |
| D McMullan - Farming of cattle, dairy farming |
| D Millar - Other farming of animals |
| D S Computers - Software consultancy and supply |
| D S Dunlop - Other farming of animals |
| D S Logan - Manufacture of other forestry machinery |
| D V Mac Interiors - Other business activities not elsewhere classified |
| D2 - Retail sale of clothing |
| Dale Farm Dairies Ltd (Distirbution) - Farming of cattle, dairy farming |
| Dale Farm Ltd - Farming of cattle, dairy farming |
| Dan Davidson - Sale of motor vehicles |
| Daniel McAlister & Son - Recycling of non-metal waste and scrap |
| David A Shaw - Farming of cattle, dairy farming |
| David A Stewart - Farming of cattle, dairy farming |
| David Bellingham - Retail sale of clothing |
| David Ewart - Photographic activities |
| David Gordon & Sons - Other supporting land transport activities |
| David Hollinger - Other farming of animals |
| David J Wylie - Other farming of animals |
| David John Mckay - Agricultural service activities |
| David Kennedy - Farming of cattle, dairy farming |
| David Kirk - Sale of motor vehicles |
| David Lamont - Retail sale of meat and meat products |
| David Owens - Other farming of animals |
| Dayfresh - Wholesale of fruit and vegetables |
| Dayfresh - Wholesale of fruit and vegetables |
| Dayfresh - Retail sale of fruit and vegetables |
| Deerpark Creamery Ltd - Farming of cattle, dairy farming |
| Democratic Unionist Party - Activities of political organisations |
| Derek Frew - Retail sale of meat and meat products |
| Desperate Dan's Sandwich Bar - Restaurant |
| Devlins - Retail sale of fruit and vegetables |
| Devlins - Retail sale of fruit and vegetables |
| Devlins - Retail sale of fruit and vegetables |
| DFT - Wholesale of clothing and footwear |
| Diamonds Newsagents - Retail sale of books, newspapers and stationary |
| DKM Graphics Ltd - Retail sale of books, newspapers and stationary |
| Doctor On Call - Medical practice activities |
| Dogs Trust - Social work activities without accommodation |
| Doherty Bros - Agricultural service activities |
| Dolphin - Restaurant |
| Domino's Pizza - Meal Takeaway |
| Donna's Hair Studio - Hairdressing and other beauty treatment |
| Dornans Citroen - Sale of motor vehicles |
| Dorothy Perkins Retail Ltd - Retail sale of clothing |
| Dougies - Restaurant |
| Downs Car Breakers - Wholesale of waste and scrap |
| Dr & Natural Care - Physical well-being activities |
| Dr C P Young - Medical practice activities |
| Dr D J Allen - Medical practice activities |
| Dr D J Johnston - Medical practice activities |
| Dr D M Hopkins - Medical practice activities |
| Dr H McSteer - Medical practice activities |
| Dr J D McQuillan - Medical practice activities |
| Dr J D Simpson - Medical practice activities |
| Dr J K McKelvey - Medical practice activities |
| Dr J McCaughern - Medical practice activities |
| Dr J Purce - Medical practice activities |
| Dr J Wilson - Medical practice activities |
| Dr M Beckett - Medical practice activities |
| Dr M C Magowan - Medical practice activities |
| Dr M R Redmond - Medical practice activities |
| Dr R A A Redmond - Medical practice activities |
| Dr R Rea - Medical practice activities |
| Dr S Baird - Medical practice activities |
| Dr S G Russell - Medical practice activities |
| Dr S Khanna - Medical practice activities |
| Dr T D Magowan - Medical practice activities |
| Dr V A Redmond - Medical practice activities |
| Dr W G Simpson - Medical practice activities |
| Dresswell Ltd - Retail sale of clothing |
| Drumadoon House - Hotels and motels, with restaurant |
| Drumalla House - Adult and other education not elsewhere classified |
| Duary Roads Postoffice - National post activities |
| Dunclug College - General secondary education |
| Dunclug Drug Advice Centre - Social work activities without accommodation |
| Dunclug Nursery School - Primary education |
| Dunclug Primary School - General secondary education |
| Dunfane School - General secondary education |
| Dunlop & Carson - Retail sale of clothing |
| Dunluce Foods - Wholesale of meat and meat products |
| Dunnes Stores (Bangor) Ltd - Other retail sale in non-specialised stores |
| DV8 - Retail sale of footwear and leather goods |
| Dye R Straights - Hairdressing and other beauty treatment |
| Dylan's - Restaurant |
| D T Carson & Co. - Accounting Auditing And Bookkeeping Services |
| Dye R Straights - Hair & Beauty Salons |
| Donna's Hair Studio - Unisex Hair Salons |
| David J White - Beef Farming |
| D Moorhead - Beef Cattle Farm |
| D J Hayes - Beef Cattle Feedlots |
| D S Computers - Retailers Of Personal Computers |
| Dale Farm Dairies Ltd - Dairy Product Distributors |
| Dairy Farm - Dairy Farmers |
| D & M Knowles - Dairy Farming |
| David Gillespie - Dairy Farming |
| Dessie Birt - Dental Laboratory |
| D A O'rawe - Dental Clinic |
| D Manson & Associates - Dental Surgeons |
| Dalriada Doctor On Call - Doctor |
| Dunnes Stores (bangor) Ltd. - Department Store |
| Denver Murray Auto Electric - Misc Elec Industrial Apparatus Mfrs |
| David Crockett - Electrical Contractor |
| D Burnside Electrical Contractors - Electrical Contractors |
| D.g Crockett - Electrical Work Contractors |
| Diamond Recruitment - Employement Agency |
| D H S S - Goverment Department |
| Doherty Bros Garage Door Systems Ltd - Garage Door Manufacturers And Distributors |
| Dava Agencies Ltd - Mens And Ladies Clothing Retailers |
| Devlins - Florist & Retailer Of Fruit & Vegetables |
| Dromona Creamery - Dairy Product Manufacturers |
| Devlins Select Fruiterers - Fruit And Vegetable Retailers |
| Dayfresh Fruiterers - Fruit And Vegetable Store |
| Dayfresh Fruiterers - Fruit And Vegetables |
| Dayfresh - Retailers Of Fruit And Vegetable |
| D J M Robinson & Son - Funeral Services |
| D J L Kitchens & Conservatories - Kitchenware Wholesalers |
| Diamond Fixings Tools - Hardware Suppliers |
| Dft (diamonds Fixings & Tools) Ltd - Diamonds Fixing And Tool Manufacturer |
| David Mckay John - Agricultural Contractors |
| D H & S M Nesbitt - Landscape Contractors And Gardening Services |
| D Mccooke Monumental Sculptors - Masonry & Stonework Contractors |
| Drumack Coachworks - Coachbuilders And Tail Lift Repairs |
| Dickson's Auto Services - Used Car Dealers And Repair Services |
| Dunloy Quarry - Quarry |
| Direct Image - Printing |
| Dan Mooney Plumbing & Heating Services - Plumbing And Heating Contractor |
| David Kerr Plumbing - Plumbing Sub-Contractor |
| Democratic Unionist Party - Political Party |
| Dixon Contractors - Residential Building Construction Contractors |
| D Gillan - Cafes Snack Bars & Tea Rooms |
| Desperate Dan's Sandwich Bar - Cafes Snack Bars & Tea Rooms |
| Dolphin - Fish & Chip Shop |
| Double Happiness - Chinese Restaurant |
| Dougies Goodies - Home Bakery |
| Drumalla House - Education Agencies And Authorities |
| Driver & Vehical Testing Agency - Vehicle Driving School |
| Derek Mcmillan - Commercial Vehicle Bodybuilders |
| Department Of Regional Development - Utility Company |
| Draught Busterz NI Ltd - Window Installation Service |
| DMC Bookkeeping & Accountancy Services - Bookkeeping Service |
| Deer Park Engineering - Mechanical Engineer |
| Dunelm - Home Goods Store |
| Dreams Ballymena - Mattress Store |
| Donnellys Rathkenny - Convenience Store |
| Dorothy Perkins - Clothing Store |