Mathias Sandø Hartveit is a private shareholder. Mathias Sandø Hartveit holds stakes in 2 companies.

Companies Mathias Sandø Hartveit owns

Company	Stake
CREWCONTROL AS	10.0%
SHARENOTWASTE AS	6.8%

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