| AIR GRILLES Diffusion | EXYTE HARGREAVES LTD |
| TROX UK LTD |
| AIR GRILLES Extract | COMPLETE FIRE PROTECTION LTD |
| DOMUS VENTILATION |
| GDHV VENTILATION - GLEN DIMPLEX HEATING & VENTILAT |
| TROX UK LTD |
| AIR GRILLES Return | EXYTE HARGREAVES LTD |
| TROX UK LTD |
| AIR GRILLES Supply | COMPLETE FIRE PROTECTION LTD |
| EXYTE HARGREAVES LTD |
| FLÄKTGROUP UK LTD |
| GDHV VENTILATION - GLEN DIMPLEX HEATING & VENTILAT |
| TROX UK LTD |
| AIR GRILLES Transfer | COMPLETE FIRE PROTECTION LTD |
| EXYTE HARGREAVES LTD |
| FLÄKTGROUP UK LTD |
| GDHV VENTILATION - GLEN DIMPLEX HEATING & VENTILAT |
| LORIENT POLYPRODUCTS LTD |
| TIMLOC BUILDING PRODUCTS |
| TROX UK LTD |
