Tone Larsen Østby is a private shareholder. Tone Larsen Østby holds a stake in 1 company.

Companies Tone Larsen Østby owns

Company	Stake	Value (est.)
YRKESBILSEMINARET.NO AS	10.0%	–

Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 02.09.2026.