| Navn | Postnummer | By |
|---|---|---|
| W.R. Damp ApS | 2640 | Hedehusene |
| WAGO Denmark A/S | 3500 | Værløse |
| Wallmann A/S | 8600 | Silkeborg |
| Watter ApS | 6700 | Esbjerg |
| Wavin Denmark A/S | 8450 | Hammel |
| wedi GmbH | 3520 | Farum |
| Wexøe A/S | 3500 | Værløse |
| Wimex A/S | 7800 | Skive |
| WINCOVER A/S | 8200 | Aarhus N |
| WOCA Denmark A/S | 6640 | Lunderskov |
| Wolff Svendsen A/S | 3400 | Hillerød |
| Wood-ways.com A/S | 8660 | Skanderborg |
| Würth Danmark A/S | 6000 | Kolding |