| FIRE DAMPERS | COMPLETE FIRE PROTECTION LTD |
| EXYTE HARGREAVES LTD |
| FLÄKTGROUP UK LTD |
| GDHV VENTILATION - GLEN DIMPLEX HEATING & VENTILAT |
| LINDAB LTD |
| LORIENT POLYPRODUCTS LTD |
| SE CONTROLS |
| TROX UK LTD |
| ZEHNDER LTD |
| FIRE DAMPERS BS 476:1972 Part 8 | TROX UK LTD |
| FIRE DAMPERS BS 476:1987 Part 20 | EXYTE HARGREAVES LTD |
| SE CONTROLS |
| FIRE DAMPERS BS ISO 10294 Part 5 | LORIENT POLYPRODUCTS LTD |
| FIRE DAMPERS DIN 4102 | TROX UK LTD |
| FIRE DAMPERS EN 13501-3 | FLÄKTGROUP UK LTD |
| LINDAB LTD |
| TROX UK LTD |
| FIRE DAMPERS EN 1366-2 | LINDAB LTD |
| TROX UK LTD |
| FIRE DAMPERS For Ceiling Fans | ZEHNDER LTD |
| FIRE DAMPERS Intumescent | COMPLETE FIRE PROTECTION LTD |
| LINDAB LTD |
| LORIENT POLYPRODUCTS LTD |
| FIRE DAMPERS Motorised | FLÄKTGROUP UK LTD |
| LINDAB LTD |
| TROX UK LTD |
