Marthe Bostad Grønbeck is a private shareholder. Marthe Bostad Grønbeck holds a stake in 1 company.

Companies Marthe Bostad Grønbeck owns

Company	Stake
JH ENGINEERING AS	5.0%

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