| VENTILATION TERMINALS | A1 BRIDGE FLUE SYSTEMS |
| COLT CLIMATE CONTROL |
| FLAKT WOODS LTD |
| ITHO UK LTD |
| KLOBER LTD |
| MONODRAUGHT LTD |
| POLYPIPE VENTILATION |
| SE CONTROLS |
| SENIOR HARGREAVES |
| TIMLOC BUILDING PRODUCTS |
| TROX UK LTD |
| UBBINK ROOFING & BUILDING PRODUCTS |
| WAVIN HEPWORTH |
| VENTILATION TERMINALS Flat Roof | A1 BRIDGE FLUE SYSTEMS |
| AIRVENT SYSTEMS LTD |
| ICOPAL LTD |
| KLOBER LTD |
| RUSKIN AIR MANAGEMENT LTD |
| SE CONTROLS |
| UBBINK ROOFING & BUILDING PRODUCTS |
| VENTILATION TERMINALS Mechanical Extract | AIRFLOW DEVELOPMENTS LTD (COMMERCIAL) |
| FLAKT WOODS LTD |
| ITHO UK LTD |
| SE CONTROLS |
| SENIOR HARGREAVES |
| TROX UK LTD |
| UBBINK ROOFING & BUILDING PRODUCTS |
| VENT AXIA COMMERCIAL & INDUSTRIAL PRODUCTS |
| VENTILATION TERMINALS Natural | A1 BRIDGE FLUE SYSTEMS |
| COLT CLIMATE CONTROL |
| KLOBER LTD |
| MONODRAUGHT LTD |
| POLYPIPE VENTILATION |
| RUSKIN AIR MANAGEMENT LTD |
| SE CONTROLS |
| SENIOR HARGREAVES |
| TIMLOC BUILDING PRODUCTS |
| UBBINK ROOFING & BUILDING PRODUCTS |
| VENT AXIA COMMERCIAL & INDUSTRIAL PRODUCTS |
| WAVIN HEPWORTH |
| VENTILATION TERMINALS Purpose Made | SE CONTROLS |
| VENTILATION TERMINALS Roof Mounting | A1 BRIDGE FLUE SYSTEMS |
| AIRVENT SYSTEMS LTD |
| COLT SMOKE CONTROL |
| MONODRAUGHT LTD |
| RUSKIN AIR MANAGEMENT LTD |
| SE CONTROLS |
| UBBINK ROOFING & BUILDING PRODUCTS |
| WAVIN HEPWORTH |
