Siri Schwings Birkeland is a private shareholder. Siri Schwings Birkeland holds a stake in 1 company, and roles in several others.

Companies Siri Schwings Birkeland owns

Company	Stake
SISI HOLDING AS	29.0%

Roles

Varamedlem

2 selskaper

VALSI AS 925560537

SISI HOLDING AS 910593900

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.