| ROOF OUTLETS Aerial Cable | KLOBER LTD |
| UBBINK UK LTD |
| ROOF OUTLETS Power Cables | KLOBER LTD |
| ROOF OUTLETS Rainwater | ACO TECHNOLOGIES PLC - BUILDING DRAINAGE |
| ALUMASC WATER MANAGEMENT SOLUTIONS |
| BLÜCHER UK LTD |
| COMPONENT DEVELOPMENTS |
| GEBERIT SALES LTD PIPING SYSTEMS |
| ICB GROUP |
| KLOBER LTD |
| OSMA |
| PAM BUILDING |
| RADMAT BUILDING PRODUCTS LTD |
| SOPREMA UK |
| WAVIN |
| ROOF OUTLETS Soil and Waste Vents | KLOBER LTD |
| OSMA |
| POLYPIPE BUILDING PRODUCTS |
| RADMAT BUILDING PRODUCTS LTD |
| UBBINK UK LTD |
| ROOF OUTLETS Solar Panel Pipes and Cables | KLOBER LTD |
| ROOF OUTLETS Water Expansion Pipe | UBBINK UK LTD |
