| DOOR Beads | QUANTUM PROFILE SYSTEMS LTD |
| DOOR Buffers | QUANTUM PROFILE SYSTEMS LTD |
| DOOR Bumpers | LYNVALE TECHNICAL ADHESIVE TAPES |
| DOOR Buzzers | THE ENTRYPHONE CO LTD |
| TIMEGUARD - TIME, LIGHT, SAFETY & CLIMATE |
| DOOR Canopies | EUROCELL PLC |
| HOUSE OF CANOPIES LTD |
| QMP |
| RICHARD BURBIDGE LTD |
| DOOR Casings | HOWARTH TIMBER GROUP |
| STADON LEVEL LTD |
| DOOR Chain Fly Stopper | SETON |
| DOOR Claddings | CONSTRUCTION SPECIALTIES - WALL PROTECTION |
| DOOR Control Units | GEZE UK LTD |
| DOOR Design | DAD - DECAYEUX |
| DOOR Double Door Pair Making Conversion Kits | PREMDOR CROSBY LTD |
| DOOR Draught Excluders | LORIENT POLYPRODUCTS LTD |
| DOOR Edge Protectors | CONSTRUCTION SPECIALTIES - WALL PROTECTION |
| DOOR Fire Resistance Upgrading Upgrades | COMPLETE FIRE PROTECTION LTD |
| DOOR Floor Springs | GEZE UK LTD |
| DOOR Hinges | GEZE UK LTD |
| HOWARTH TIMBER GROUP |
| IG DOORS LTD |
| SFS |
| SILVER KITE LTD |
| DOOR Hold Open Devices | GEZE UK LTD |
| DOOR Latches | PREMDOR CROSBY LTD |
| DOOR Linings | HOWARTH TIMBER GROUP |
| DOOR Mats | SETON |
| DOOR Mouldings | HOWARTH TIMBER GROUP |
| RICHARD BURBIDGE LTD |
| DOOR Panel Mouldings | HOWARTH TIMBER GROUP |
| RICHARD BURBIDGE LTD |
| DOOR Pillars | PORTLAND STONE FIRMS LTD |
| DOOR Porter Systems | THE ENTRYPHONE CO LTD |
| DOOR Rebate Infills | FUSION FACADES LTD |
| DOOR Repair and Maintenance | GEZE UK LTD |
| TORMAX UK LTD |
| DOOR Side Lights | HOWARTH TIMBER GROUP |
| IG DOORS LTD |
| DOOR Smoke and Heat Detectors | GEZE UK LTD |
| DOOR Smoke Seals | COMPLETE FIRE PROTECTION LTD |
| LORIENT POLYPRODUCTS LTD |
| DOOR Steps | SUPREME CONCRETE LTD |
| DOOR Ventilators | DOMUS VENTILATION |
| HEWI - SANITARY AND ACCESSIBILITY SOLUTIONS |
| DOOR Weatherproofing | LORIENT POLYPRODUCTS LTD |
| TECHNIBOND LTD |
