| Belfast Boiler Services - 574-576 Ballysillan Road - BT14 6RN |
| Belfast Energy Agency - 1-11 May St - BT1 4NA |
| Belfast Oil Supplies - 6 Church Wynd - BT5 7QJ |
| Calor Gas - Airport Road West - BT3 9EE |
| Cawoods Coal - Unit 10 - BT3 9AP |
| Coal Handling - Dufferin Rd - BT3 9AA |
| Danros Heating Services - Bridgewood House - BT9 5NW |
| Down Oil Supplies - Belfast Oil Supplies - BT5 7RZ |
| Ellison-Pettis - Unit 14-16 - BT3 9JL |
| Flo Gas - Airport Road West - BT3 9ED |
| Glass's Fuels - 412 Cushendall Rd - BT43 6QE |
| Heatcall Boiler & Pumps Ltd - 16B Robbs Road - BT16 2NA |
| Heating Control & Devices - 8-10 Tamar Street - BT4 1HS |
| Holywood Plumbing & Heating - 1 Ballymacarrett Road - BT4 1BT |
| Home Appliance Centre - 3 Shannon Gardens - BT40 3BA |
| Home Fuels - 19 Beech View - BT39 9XT |
| Home Fuels Ltd - Mallusk ParkMallusk Rd - BT36 4FS |
| Kane Coal Ltd - 7 Joymount - BT38 7DN |
| Meekin Fuel Group - Meekin Industrial Park - BT39 0HQ |
| Phoenix Natural Gas - Phoenix Natural Gas Ltd - BT3 9ED |
| Rayker Supreme Fuels - 101 Ravarnet Road - BT27 5NF |
| South Antrim Boiler Services Ltd. - 43-45 Seymour Street - BT27 4SY |
| Stanley Millen Heating Services - 2 Bluefield Road - BT38 7XE |
| T M C Services - 24 Duncrue Cres - BT3 9BW |
| The Grant Group Ltd. - 47a Linfield Industrial Estate - BT12 5LA |
| Underfloor Direct Ltd - Unit 1/Lisburn Enterprise Centre - BT28 2BP |
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