Magnar Sivertsen is a private shareholder. Magnar Sivertsen holds a stake in 1 company, and roles in several others.

Companies Magnar Sivertsen owns

Company	Stake
MAGSI AS	100.0%

Roles

Styremedlem

1 selskap

GRENDALAG B6 920689221

Styrets leder

1 selskap

MAGSI AS 936017126

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.