Svein Erik Sundsteigen is a private shareholder. Svein Erik Sundsteigen holds stakes in 2 companies.

Companies Svein Erik Sundsteigen owns

Company	Stake
ADVENTIS AS	100.0%
SVEIN ERIK SUNDSTEIGEN AS	100.0%

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