Norway's largest fish farms
Companies farming fish, fry and smolt in sea and brackish water.
The register holds 425 fish farms with filed revenue. Together they turn over NOK 225.8bn and employ 13 414 people. The largest is MOWI MARKETS NORWAY AS, with NOK 26.7bn in revenue. The highest operating result belongs to MOWI ASA, at NOK 2.9bn. The median operating margin is 6.5% across the 162 companies with real trading substance. Most are based in Vestland (133 companies).
Largest by revenue
Ranked by the most recently reported operating revenue.
Most profitable
Ranked by the most recently reported operating profit (EBIT).
Highest operating margin
Operating profit as a percentage of revenue. Only companies with at least 5 employees and more than NOK 5m in revenue.
Largest employers
Ranked by registered headcount.
Where fish farms are based
County
Number of companiesActivity codes included
This industry gathers the following SN2007 activity codes. Each code also has its own overview page.
About the figures
Figures are the latest annual accounts filed with the Register of Company Accounts, matched to the activity code the company carries in the Central Coordinating Register. A company lands in an industry on the strength of that registered code, not an assessment of what it actually does.
The operating-margin list and the median use only the 162 companies with at least 5 employees and over 5 mill. kr in revenue, so a small company with erratic figures cannot top the list.
1 companies are held out because their operating margin exceeds 75% – far above the norm for this industry. That is almost always a wrong activity code or fair-value gains booked as operating revenue, not trading.
Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 02.09.2026.
Latest changes among fish farms
Other industries
These lists show actual registered figures from public sources (the Brønnøysund registers). They are not an assessment of creditworthiness, solidity or suitability as a customer, supplier or investment. Figures are for the most recently reported financial year.