Jan-Trygve Athammer Kjølsø is a private shareholder with an estimated portfolio value of NOK 2.5m. Jan-Trygve Athammer Kjølsø holds stakes in 2 companies, and roles in several others.

Estimated portfolio value

NOK 2.5m

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

Companies Jan-Trygve Athammer Kjølsø owns

Company	Stake	Value (est.)
TRYGVE INVESTMENT AS	100.0%	NOK 2.3m
KJØLSØ EIENDOM AS	33.3%	NOK 237,000

Roles

Daglig leder

3 selskaper

TRYGVE INVESTMENT AS 916753063

KJØLSØ ANLEGG AS 929621727

HOFFKJØ HAVFISKE AS 821612772

Styremedlem

3 selskaper

KJØLSØ EIENDOM AS 919425792

HITRA SALMON AS 920721400

JKS EIENDOM AS 929307844

Styrets leder

2 selskaper

TRYGVE INVESTMENT AS 916753063

KJØLSØ ANLEGG AS 929621727

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.