| ARC Building Solutions Limited |
| Acheson & Glover |
| ACO Technologies plc |
| Acrypol Products Limited |
| Albany Shed Co Ltd |
| Aldridge Security Ltd |
| Allen Concrete Limited |
| Allpex Limited |
| Alumasc Exterior Products Limited |
| Anglo Norden Forest Products Ltd |
| Bord na Móna Environmental UK Ltd, trading as Anua |
| Arbor Forest Products Ltd |
| Arch Timber Protection |
| Ariel Plastics Limited |
| Artex Limited |
| Atkinson & Kirby Limited |
| Baker Timber Agents |
| Barleystone Paving |
| Barwick Bathroom Distribution LLP |
| Crosswater Limited t/a Bauhaus |
| BCGXL |
| Belle Engineering (Sheen) Ltd |
| E J Berry & Son Limited |
| Birkdale Limited |
| Birtley Building Products Limited |
| Blue Diamond STL |
| Bostik Ltd |
| Concrete Fabrications Limited t/a Bowland Stone |
| Aggregate Industries UK Ltd - Bradstone |
| Brett Landscaping Ltd |
| Brett Martin Building Products Ltd |
| British Gypsum Ltd |
| H J Enthoven Ltd - British Lead Mills |
| Buckler Limited |
| Richard Burbidge Ltd |
| J D Burford Limited |
| Caledonian Plywood Co |
| James Callander & Son Ltd |
| Calmag Limited |
| Carlisle Brass Limited |
| Castacrete Ltd |
| The CDA Group Limited |
| Cemex UK Cement Ltd |
| Cemex Concrete Products |
| Centurion Europe Limited |
| Ciret Ltd |
| Connections AML Ltd |
| Cromar Building Products Limited |
| Crown Paints |
| Crown Timber plc |
| Dacatie (Quantum Profile Systems Ltd) |
| Dale Hardware Limited |
| Davant Products Limited |
| Dickies (UK) Ltd |
| Digby Stone Limited |
| Donaldson Timber Limited |
| Dunbrik (Yorks) Ltd |
| Clive Durose Woodturners Limited |
| Embrass Peerless |
| Encon Insulation Ltd |
| European Plastics Limited |
| Everbuild Building Products Ltd |
| Expamet Building Products Limited |
| Fabdec Limited |
| Fischer Fixings UK Ltd |
| Fexibulk Limited t/a Fleximas |
| Flexseal Limited |
| Footsure Western Limited |
| Forgefix Limited |
| Geocel Limited |
| Geosynthetics Ltd |
| Glennon Bros Timber Ltd |
| Globus (Shetland) Limited |
| Grange Fencing Ltd |
| H&V Controls |
| H+H UK Ltd |
| Haemmerlin Limited |
| Hanson Building Products Ltd - Bricks |
| Hanson Building Products Ltd - Formpave |
| Hanson Building Products Ltd - Red Bank |
| Hanson Building Products Ltd - Thermalite |
| Hargreaves Foundry Limited |
| Hargreaves Wholesale |
| L G Harris & Co Ltd |
| Harrison & Clough Ltd |
| William Hopkins & Sons Limited |
| W Howard Limited |
| Howard Richard Sales Limited |
| Hush UK Limited |
| Brian Hyde Ltd |
| Imperial Chemical Industries Ltd - ICI Paints division |
| Ibstock Brick Ltd |
| Independent Slate Supplies |
| Ingersoll Rand Security Technologies Co Ltd |
| Interfuse Ltd |
| International Petroleum Products Limited |
| International Plywood (Importers) Ltd |
| ITW Construction Products |
| Jegs Electrical |
| Jeld-Wen UK Ltd |
| Joule UK Limited |
| Keylite Roof Windows Limited |
| J B Kind Ltd |
| Kingscourt Clay Products |
| Kingspan Renewables Limited |
| Klober Limited |
| Knauf Drywall |
| Knauf Insulation |
| W T Knowles & Son Ltd |
| L C Packaging (UK) Ltd |
| Leeds Plywood & Doors Ltd |
| James Latham plc |
| Robert Lee Distribution Limited |
| Leisuregrow Products Limited |
| Liberon Limited |
| Long Rake Spar Co Ltd |
| MDM Timber Ltd |
| Makita UK Limited |
| Manrose Manufacturing Limited |
| Mansfield Sand Company Limited |
| Manthorpe Building Products Limited |
| Marley Eternit Limited |
| Marsh Industries Limited |
| Marshalls plc |
| Aggregate Industries UK Ltd - Masterblock |
| McArthur Group Ltd |
| Melcourt Industries Limited |
| Metsa Wood |
| Meyer Timber Limited |
| Midland Lead Manufacturers |
| Jewson Ltd - Minster Insulation Group |
| ML Accessories Limited |
| Icopal Ltd |
| Natural Paving Products (UK) Ltd |
| Naylor Drainage Ltd |
| Nexus Industries Limited |
| Protim Solignum Limited t/a Osmose |
| Owen Tatton Ltd |
| OX Group UK |
| Pasquill Roof Trusses |
| Pavestone UK Ltd |
| PD Edenhall Ltd |
| A Perry & Co (Hinges) Limited |
| Glynwed Pipe Systems t/a Philmac |
| Pitacs |
| PJH Group |
| Polypipe Building Products Limited |
| Polypipe Building Products - Ventilation |
| PPG Architectural Coatings UK Limited |
| Premdor UK |
| Premier Forest Products Ltd |
| Mueller Primaflow Limited |
| Protektor UK Limited |
| Quinn Group Ltd |
| Reisser Ltd |
| Ronseal Limited |
| Rowlinson Timber Ltd |
| IKO plc - Ruberoid |
| Rustins Limited |
| Saint Gobain PAM UK Limited |
| Samac Fixings Ltd |
| Peter Savage Ltd |
| SCA Timber Supply Limited |
| Seevent Plastics Ltd |
| Severn Valley Woodworks Limited |
| SIG Insulations Ltd |
| SIG Roofing Supplies Group |
| Sika Limited |
| Simpson Strong Tie |
| Crosswater Limited t/a Simpsons |
| Sonae (UK) Ltd |
| Specialist Group Limited |
| John Guest Speedfit |
| Styrene Packaging & Insulation Limited |
| Flambeau Europlast - Stadium brand |
| Stearn Electric |
| Sterling Safetywear Limited |
| Stonemarket Ltd |
| Stowell Concrete Limited |
| Karl Streit |
| Stressline Limited |
| Supreme Concrete Ltd |
| Tarmac Building Products Ltd |
| Thermogroup UK |
| Timbmet Limited |
| T I Midwood & Co Ltd |
| Timloc Building Products Ltd |
| Eliza Tinsley Limited |
| Curtis Holt Ltd - Toolbank |
| Trackwork |
| Tre Mercati |
| Tubeway (Sales) Limited |
| Ultra Finishing Limited |
| Unilin Distribution Limited |
| Eurobath International Limited t/a Vado |
| Visqueen Building Products Ltd |
| Vista Engineering Ltd |
| Vogel & Noot |
| Wessex Chemical Factors |
| Wienerberger Ltd |
| Woodbridge Timber Ltd |
| Safety & Electrical Products Limited |
| WPL Limited |
| X L Joinery Ltd |
| YBS Insulation Limited |
| Yes Telco Ltd |
| Youngman Group Ltd |