Marit Williamsen is a private shareholder. Marit Williamsen holds stakes in 2 companies, and roles in several others.

Companies Marit Williamsen owns

Company	Stake
SIVILINGENIØR ROBERT WILLIAMSEN AS	17.0%
CASA NAMSOS AS	16.7%

Roles

Styrets leder

1 selskap

CASA NAMSOS AS 883819152

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.