Bedrift W - Tåsen
- Wentworth
- Wæhler & Co
- Wahrbo DA
- Wildensky AS
- Wino AS
- Weavo AS
- Wickstrand Iversen
- Wade Works
- Winnie Ødegård
- Wiknes Katter
- Westerlund Heidi
- Wle Holding AS
- Willy Verwoerd
- Whitefort Invest AS
- Wencon Wenaas
- Wanberg Parterapi
- Wright Miljø
- Wave Invest AS
- Widerberg Holding AS
- Wilstersvei 17 AS
- Waranya Dankhunthot Nordahl
- Walsøe Mek Verksted AS
- Warenhoff Diamanter Aleksander Opsann
- Wik-Eng Ingvild Nathali
- Winsnes Trommer & Data
- Water Oslo Samadhi Dinindu S Ratnaweera