Sissel Thomassen is a private shareholder. Sissel Thomassen holds a stake in 1 company, and roles in several others.

Companies Sissel Thomassen owns

Company	Stake
AKTIVA AS	49.0%

Roles

Daglig leder

1 selskap

AKTIVA AS 998577179

Styremedlem

1 selskap

AKTIVA AS 998577179

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.