Stephan Marstrander is a private shareholder. Stephan Marstrander holds stakes in 2 companies.

Companies Stephan Marstrander owns

Company	Stake
SMARS AS	100.0%
CEMIT GROUP AS	0.1%

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