| Castlewellan Forest Park | 028 4377 8664 | | Grange Yard, Castlewellan Forest Park, Castlewellan, BT31 9BU |  Map & Directions |
| Abraham Tree Maintenance | 028 3888 1258 | | 95 Banbridge Road, Waringstown, Craigavon, BT66 7RU | | Map & Directions |
| Premier Woodlands Ltd | 028 7963 4236 | | 15 Loves Road, Magherafelt, BT45 6NP | | Map & Directions |
| M Large Tree Services Ltd | 028 9034 2838 | | Prince Charles Way, Newtownabbey, BT36 6DH | | Map & Directions |
| John Gray & Son | 028 7772 2599 | | 111 Broad Road , Limavady, BT49 0QP | | Map & Directions |
| Tree Maintenance Ltd | 028 4482 8210 | | 10 Ballytrim Road, Killyleagh, Downpatrick, BT30 9TH | | Map & Directions |
| Indiwoods | 028 3755 2077 | | 28 Eden Drive, Markethill, Armagh, BT60 1LA | | Map & Directions |
| Green Fingers | 028 9188 8837 | | 74 Newtownards Road, Donaghadee, BT21 0PT | | Map & Directions |
| Northern Tree Services | 028 9262 1217 | | 1 Horse Park, Lisburn, BT28 2QU | | Map & Directions |
| County Down Tree Specialist | 028 9751 9802 | | 95 Ballygowan Road, Comber, Newtownards, BT23 5RP | | Map & Directions |
| Drenagh Tree Services | 028 7772 2649 | | Estate Office, Drenagh, Limavady, BT49 0HP | | Map & Directions |
| Ian Mcclelland | 028 2957 1206 | | 211 Finvoy Road, Ballymoney, BT53 7JS | | Map & Directions |
| Scottish Woodland | 028 2763 8026 | | Unit 6, 2 Drumadoon Road , Cloughmills, Ballymena, BT44 9LJ | | Map & Directions |
| Old Manse Tree Services | 028 9083 2922 | | 101 Manse Road, Newtownabbey, BT36 6SN | | Map & Directions |
| Estate & Forestry Services Ltd | 028 9076 1177 | | 11 Avonvale, Belfast, BT4 2WA | | Map & Directions |
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