Jan Grønbech is a private shareholder. Jan Grønbech holds stakes in 2 companies, and roles in several others.

Companies Jan Grønbech owns

Company	Stake
GRØNBECH CONSULTING AS	100.0%
CASTOR INVEST AS	0.6%

Roles

Daglig leder

1 selskap

SUNSTONE INSTITUTE AS 932903679

Styremedlem

1 selskap

DEN NORSKE FORENING FOR STYREMEDLEMMER - STYREFORENINGEN.NO 930609226

Styrets leder

1 selskap

GRØNBECH CONSULTING AS 924826371

Active roles recorded in the Register of Business Enterprises / the Central Coordinating Register

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