Tom Arnfinn Bøckman Sirnes is a private shareholder with an estimated portfolio value of NOK 1.4m. Tom Arnfinn Bøckman Sirnes holds stakes in 2 companies, and roles in several others.

Estimated portfolio value

NOK 1.4m

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

Companies Tom Arnfinn Bøckman Sirnes owns

Company	Stake	Value (est.)
MEMBRANTEKNIKK AS	54.0%	NOK 1.4m
FLEKKEFJORD SPAREBANK	0.0%	–

Roles

Styrets leder

4 selskaper

MT SEPARATION AS 914952689

EXTRACT AS 997952464

SIRNES EIENDOM AS 912489809

MEMBRANTEKNIKK AS 979111738

Daglig leder

2 selskaper

MEMBRANTEKNIKK AS 979111738

SIRNES EIENDOM AS 912489809

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.