Jan Håkon Greaker is a private shareholder with an estimated portfolio value of NOK 17,000. Jan Håkon Greaker holds a stake in 1 company, and roles in several others.

Estimated portfolio value

NOK 17,000

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

Companies Jan Håkon Greaker owns

Company	Stake	Value (est.)
MONTESINO HOLDING AS	50.0%	NOK 17,000

Roles

Styrets leder

3 selskaper

MONTESINO HOLDING AS 933606694

ASCHEHOUG INVEST & CONSULTING AS 934138376

SKIEN VETERINÆRKLINIKK AS 933721051

Daglig leder

1 selskap

GREAKER EIENDOM AS 913529278

Styremedlem

1 selskap

GREAKER EIENDOM AS 913529278

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.