| WALL SYSTEMS | BRITISH GYPSUM |
| HUNTER DOUGLAS CEILINGS |
| SAFETELL LTD |
| WALL SYSTEMS Acoustic | ACCORDIAL LTD |
| BRITISH GYPSUM |
| HUNTER DOUGLAS CEILINGS |
| WALL SYSTEMS Approved Doc E 2003 | BRITISH GYPSUM |
| WALL SYSTEMS Blast Refuge | BRITISH GYPSUM |
| WALL SYSTEMS Cleanroom | FILON PRODUCTS LTD |
| FLÄKTGROUP UK LTD |
| PAROC PANEL SYSTEM |
| WALL SYSTEMS Curved | BRITISH GYPSUM |
| Rockpanel |
| WALL SYSTEMS External Walls Through the Wall Systems | TATA STEEL UK |
| WALL SYSTEMS External Walls Vertical Firewall Systems | TATA STEEL UK |
| WALL SYSTEMS Fire Resistant | BRITISH GYPSUM |
| KAWNEER UK LTD |
| SCHUECO UK LTD |
| WALL SYSTEMS Glass | SCHUECO UK LTD |
| WALL SYSTEMS Impact Resistant | BRITISH GYPSUM |
| TRESPA UK LTD |
| WALL SYSTEMS Modular | HUNTER DOUGLAS CEILINGS |
| WALL SYSTEMS Modular Security Walling | SAFETELL LTD |
| WALL SYSTEMS Movable | A DOOR ADDITIONS LTD |
| ACCORDIAL LTD |
| ACOUSTIC PRODUCTS LTD |
| MOVING DESIGNS LTD |
| STYLE MOVEABLE PARTITION SPECIALISTS |
| WALL SYSTEMS OSM (Offsite Manufacture) | FORTERRA BUILDING PRODUCTS LIMITED |
| H+H UK LTD |
| PRECAST CONCRETE STRUCTURES LTD |
| WALL SYSTEMS Prefabricated Elements | H+H UK LTD |
| WALL SYSTEMS Security Wall Systems | BRITISH GYPSUM |
| SAFETELL LTD |
| WALL SYSTEMS Separating Partition Wall Systems | BRITISH GYPSUM |
| WALL SYSTEMS Severe Duty BS 5234 | BRITISH GYPSUM |
