Kristoffer Røstad Martinsen is a private shareholder. Kristoffer Røstad Martinsen holds a stake in 1 company.

Companies Kristoffer Røstad Martinsen owns

Company	Stake
STRAMAR AS	50.0%

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