| W.R. Damp ApS | 2640 | Hedehusene |
| WAGO Denmark A/S | 3500 | Værløse |
| Waldner IC A/S | 8464 | Galten |
| Wallmann A/S | 8600 | Silkeborg |
| WASI International GmbH | 6000 | Kolding |
| Wavin Denmark A/S | 8450 | Hammel |
| wedi GmbH | 3520 | Farum |
| Wennerth Wood Trading | 2860 | Søborg |
| West Diesel Engineering A/S | 6700 | Esbjerg |
| WestCoast® Tråd & Plader ApS | 6715 | Esbjerg N |
| Wewers A/S | 3400 | Hillerød |
| Wexøe A/S | 3500 | Værløse |
| Wicona | 8240 | Risskov |
| Wicotec Kirkebjerg A/S | 2630 | Taastrup |
| Willesen Import A/S | 6470 | Sydals |
| WINCOVER A/S | 8200 | Aarhus N |
| Wintec - Big Steel Solutions | 7330 | Brande |
| WOCA Denmark A/S | 6640 | Lunderskov |
| WOOD STEP A/S | 8970 | Havndal |
| WOODSTONE | 8270 | Højbjerg |
| WoodUpp Ivs | 6760 | Ribe |
| WoodyWood ApS | 3520 | Farum |
| WUPPI A|S | 8600 | Silkeborg |
| Würth Danmark A/S | 6000 | Kolding |
| Würth Industri Danmark A/S | 6000 | Kolding |
