Jaroslaw Franciszek Prostak is a private shareholder with an estimated portfolio value of NOK 2.1m. Jaroslaw Franciszek Prostak holds a stake in 1 company.

Estimated portfolio value

NOK 2.1m

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

Companies Jaroslaw Franciszek Prostak owns

Company	Stake	Value (est.)
D-KO HOLDING AS	100.0%	NOK 2.1m

Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 03.10.2026.