Marte Grahl-Madsen is a private shareholder. Marte Grahl-Madsen holds a stake in 1 company.

Companies Marte Grahl-Madsen owns

Company	Stake
VON HOLZEN TREVERK AS	6.7%

Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 03.10.2026.