Steinar Sønsteby is a private shareholder. Steinar Sønsteby holds stakes in 2 companies, and roles in several others.

Companies Steinar Sønsteby owns

Company	Stake
SS HOLDING AS	28.6%
SS HOLDING AS	28.6%

Roles

Styrets leder

2 selskaper

SS HOLDING AS 988393827

ELMERA GROUP ASA 920153577

Daglig leder

1 selskap

ATEA ASA 920237126

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.