Jan Harald Kvamme is a private shareholder with an estimated portfolio value of NOK 8.2m. Jan Harald Kvamme holds stakes in 2 companies, and roles in several others.

Estimated portfolio value

NOK 8.2m

The sum of estimated values across all known holdings in Norwegian AS/ASA companies

Companies Jan Harald Kvamme owns

Company	Stake	Value (est.)
SIESTA INVEST AS	70.0%	NOK 8.1m
THOR MEDICAL ASA	0.0%	NOK 56,000

Roles

Styrets leder

1 selskap

SIESTA INVEST AS 990105820

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 02.09.2026.