Thoralf Riiser is a private shareholder. Thoralf Riiser holds a stake in 1 company, and roles in several others.

Companies Thoralf Riiser owns

Company	Stake
IVIO AS	50.0%

Roles

Innehaver

1 selskap

THORALF RIISER INS 988464309

Styrets leder

1 selskap

IVIO AS 917075786

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.