Stian Tjosås Hartvigsen is a private shareholder. Stian Tjosås Hartvigsen holds stakes in 2 companies.

Companies Stian Tjosås Hartvigsen owns

Company	Stake
GAKO AS	30.0%
COLLETT PLAST AS	17.5%

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