Thorstein Marthinussen is a private shareholder. Thorstein Marthinussen holds a stake in 1 company, and roles in several others.

Companies Thorstein Marthinussen owns

Company	Stake
ALPIN-INVEST AS	25.0%

Roles

Innehaver

1 selskap

MARTHINUSSEN MULTISERVICE 938124639

Styrets leder

1 selskap

WELLFERD NO 990905908

Varamedlem

1 selskap

ALPIN-INVEST AS 911818809

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.