Jostein Mikkal Kosberg is a private shareholder. Jostein Mikkal Kosberg holds stakes in 2 companies.

Companies Jostein Mikkal Kosberg owns

Company	Stake
MJUKEN UTBYGGING OG DRIFT AS	0.2%
KVIKNE-RENNEBU KRAFTLAG AS	0.0%

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