Jostein Ertesvåg is a private shareholder. Jostein Ertesvåg holds a stake in 1 company, and roles in several others.

Companies Jostein Ertesvåg owns

Company	Stake
INSERVIO AS	50.0%

Roles

Daglig leder

1 selskap

INSERVIO AS 912208141

Styremedlem

1 selskap

INSERVIO AS 912208141

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.