Øystein Sondrup Nielsen is a private shareholder. Øystein Sondrup Nielsen holds a stake in 1 company, and roles in several others.

Companies Øystein Sondrup Nielsen owns

Company	Stake
SONDRUP INVEST AS	100.0%

Roles

Styrets leder

2 selskaper

SONDRUP INVEST AS 923997571

IKLINIKK AS 925019186

Daglig leder

1 selskap

IKLINIKK AS 925019186

Styremedlem

1 selskap

FULLBOOKET AS 924346906

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.