| SOFFIT BOARDS | CONTOUR HEATING PRODUCTS LTD |
| EUROCELL PLC |
| EUROFORM PRODUCTS |
| GUTTERMASTER LTD |
| HUNTER DOUGLAS SUN CONTROL & FACADES |
| KNAUF UK |
| MEDITE SMARTPLY UK LIMITED |
| RESIDENTIEL VINYL CLADDING LTD |
| Rockpanel |
| SEAMLESS ALUMINIUM GROUP |
| TRESPA LTD |
| SOFFIT BOARDS AGREMENT CERTIFICATE HOLDERS | POLYPIPE BUILDING PRODUCTS |
| Rockpanel |
| SOFFIT BOARDS Aluminium | SEAMLESS ALUMINIUM GROUP |
| SOFFIT BOARDS Aluminium Colourcoated | ALUMASC WATER MANAGEMENT SOLUTIONS |
| CONTOUR HEATING PRODUCTS LTD |
| FUSION FACADES LTD |
| GUTTERMASTER LTD |
| SEAMLESS ALUMINIUM GROUP |
| SOFFIT BOARDS Aluminium Purpose Made | SEAMLESS ALUMINIUM GROUP |
| SOFFIT BOARDS Coloured PVC-u | EUROCELL PLC |
| RESIDENTIEL VINYL CLADDING LTD |
| SOFFIT BOARDS GRG Glass Reinforced Gypsum | BRITISH GYPSUM |
| SOFFIT BOARDS Perforated | EUROCELL PLC |
| SEAMLESS ALUMINIUM GROUP |
| SOFFIT BOARDS Pre-Vented | EUROCELL PLC |
| SOFFIT BOARDS PVC-u | EUROCELL PLC |
| POLYPIPE BUILDING PRODUCTS |
| RESIDENTIEL VINYL CLADDING LTD |
| SOFFIT BOARDS Textured Woodgrain | RESIDENTIEL VINYL CLADDING LTD |
| Rockpanel |
