Siw Fermann is a private shareholder. Siw Fermann holds stakes in 2 companies.

Companies Siw Fermann owns

Company	Stake
LAPPLAND PROSJEKTUTVIKLING AS	0.2%
MUSKENSENTER ENERGI AS	0.0%

Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 03.10.2026.