STEIN IVAR ANTONSEN is the largest registered owner, with 100.0%.

What is the revenue of SIA AS?

SIA AS had revenue of NOK 570,000 in 2025.

Who is the general manager of SIA AS?

Stein Ivar Antonsen is registered as general manager of SIA AS.

SIA AS has its business address in Tromsø.

Support activities for fishing and aquaculture

Org. no. 990495823 Limited company (AS) Tromsø Incorporated 2006 Active

Ownership graph ↗

Revenue 2025 NOK 570,000

Operating profit NOK −45,000

Equity NOK 3.6m

Incorporated 2006

Share capital NOK 100,000

Daglig lederStein Ivar Antonsen

Regnskapsfører

Styrets lederStein Ivar Antonsen

VaramedlemInga Segtnan

Name	Stake	Shares	Year
STEIN IVAR ANTONSEN	100.0%	100.000000	2025

Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 15.06.2026.

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SIA AS · Rapport

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NOK 1.8m

NOK 1.4m – NOK 3.5m

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