Ole Martin Siem is a private shareholder with an estimated portfolio value of NOK 20.8m. Ole Martin Siem holds stakes in 3 companies, and roles in several others.

Estimated portfolio value

NOK 20.8m

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

Companies Ole Martin Siem owns

Company	Stake	Value (est.)
ORETUN AS	95.0%	NOK 20.0m
ØKOLOGISK DRIFT AS	26.0%	NOK 825,000
LIER FRUKTLAGER AS	0.0%	NOK 9,000

Roles

Styrets leder

4 selskaper

HANEKLEIVA EIENDOM AS 920512593

REST AS 818659652

ØKOLOGISK DRIFT AS 986145826

ORETUN AS 989267213

Daglig leder

2 selskaper

ØKOLOGISK DRIFT AS 986145826

ORETUN AS 989267213

Styremedlem

2 selskaper

OREBERG AS 823433972

NEBULA EIENDOM AS 923378375

Innehaver

1 selskap

OLE MARTIN SIEM 969351323

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 02.09.2026.