| VENTILATORS Acoustic | CMS DANSKIN ACOUSTICS |
| TIMLOC BUILDING PRODUCTS |
| VENTILATORS Door | POLYPIPE VENTILATION |
| SAVEKERS SOLUTIONS LIMITED |
| VENTILATORS Draught Reducing | TIMLOC BUILDING PRODUCTS |
| VENTILATORS Gas Combustion | CAVITY TRAYS LTD |
| MONODRAUGHT LTD |
| TIMLOC BUILDING PRODUCTS |
| VENTILATORS Gas Heat Producing Appliances | CAVITY TRAYS LTD |
| TIMLOC BUILDING PRODUCTS |
| VENTILATORS Heat Exchange | MONODRAUGHT LTD |
| VENTILATORS Heat Recovery | AIRFLOW DEVELOPMENTS LTD (COMMERCIAL) |
| AIRFLOW DEVELOPMENTS LTD (DOMESTIC) |
| ITHO UK LTD |
| POLYPIPE VENTILATION |
| UBBINK WHOLE HOUSE VENTILATION |
| VECTAIRE LTD |
| VENT AXIA COMMERCIAL & INDUSTRIAL PRODUCTS |
| VENT AXIA DOMESTIC PRODUCTS |
| VENTILATORS Low Energy | VENT AXIA COMMERCIAL & INDUSTRIAL PRODUCTS |
| VENTILATORS Passive | ITHO UK LTD |
| RUSKIN AIR MANAGEMENT LTD |
| SE CONTROLS |
| UBBINK WHOLE HOUSE VENTILATION |
| VECTAIRE LTD |
| VENT AXIA COMMERCIAL & INDUSTRIAL PRODUCTS |
| ZEHNDER COMMERCIAL DIVISION |
| VENTILATORS Plinth | POLYPIPE VENTILATION |
| VENTILATORS Porthole | SAVEKERS SOLUTIONS LIMITED |
| VENTILATORS Seat Back | SAVEKERS SOLUTIONS LIMITED |
| VENTILATORS Smoke Control | AIRVENT SYSTEMS LTD |
| COLT CLIMATE CONTROL |
| COLT SMOKE CONTROL |
| GEZE UK LTD |
| NATIONAL DOMELIGHT COMPANY |
| RUSKIN AIR MANAGEMENT LTD |
| SE CONTROLS |
| VENTILATORS Wall | AIRFLOW DEVELOPMENTS LTD (DOMESTIC) |
| CAVITY TRAYS LTD |
| MANTHORPE GROUP |
| POLYPIPE VENTILATION |
| TIMLOC BUILDING PRODUCTS |
| VENT AXIA COMMERCIAL & INDUSTRIAL PRODUCTS |
| VENT AXIA DOMESTIC PRODUCTS |
| VENTILATORS Worktop | POLYPIPE VENTILATION |
