Jan Gunnar Hartvig is a private shareholder with an estimated portfolio value of NOK 89.4m. Jan Gunnar Hartvig holds stakes in 3 companies, and roles in several others.

Estimated portfolio value

NOK 89.4m

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

Companies Jan Gunnar Hartvig owns

Company	Stake	Value (est.)
HARTVIG WENNBERG AS	50.0%	NOK 88.2m
KONSERV AS	3.7%	NOK 380,000
NORGESINVESTOR FORMUESFORVALTNING AS	3.4%	NOK 834,000

Roles

Styrets leder

2 selskaper

KONSERV AS 976679784

HARTVIG WENNBERG AS 876290332

Styremedlem

1 selskap

NORGESINVESTOR FORMUESFORVALTNING AS 976645146

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.