SIC code 03210 covers marine aquaculture businesses. With 506 active companies, this is a specialised niche within the UK business landscape. It falls under Section A (Agriculture, forestry and fishing) of the UK SIC 2007 classification system, which is used by Companies House to categorise all registered businesses.
See the full industry analysis on the Marine aquaculture industry page.
With a 89% survival rate, this sector shows strong business longevity. Only 1 of 569 companies registered under this code have dissolved, well below the UK average. Companies in this sector average 11.4 years old, reflecting a balanced mix of established businesses and newer market participants. Growth has been exceptional recently: 45% of all active companies were formed since 2020, marking this as one of the fastest-expanding classifications. The 2010s contributed another 30%, meaning the vast majority of businesses are relatively new. Companies are geographically dispersed across the UK, with no single location dominating. The top three locations — LONDON, SHETLAND, GLASGOW — together account for just 17% of the sector.
SIC code 03210 stands for "Marine aquaculture" under the UK Standard Industrial Classification (SIC 2007) system. It belongs to Section A — Agriculture, forestry and fishing. Companies use this code when registering with Companies House to indicate their primary business activity. The code is required for annual confirmation statements and is used by HMRC, ONS, and other government bodies for statistical and regulatory purposes.
There are currently 506 active companies registered under SIC code 03210 in the UK, out of 569 total registrations. This gives a survival rate of 89%, meaning 11% of companies registered under this code have since dissolved. These figures are based on Companies House data and updated regularly.
The top locations for marine aquaculture companies (SIC 03210) are: LONDON (47), SHETLAND (19), GLASGOW (18), OBAN (11), STIRLING (9). Geographic concentration can reflect local economic conditions, industry clusters, or proximity to key markets and supply chains.
The sector is growing: 45% of currently active SIC 03210 companies were formed since 2020, and 30% during the 2010s. This sustained formation rate indicates ongoing demand for marine aquaculture services in the UK.
Companies classified under SIC 03210 have an average age of 11.4 years. This suggests a balanced sector with both established players and newer entrants. Notable companies include MOWI SCOTLAND LIMITED, SCOTTISH SEA FARMS LIMITED, BAKKAFROST SCOTLAND LIMITED.
Related SIC codes within the same division include: 03110 (Marine fishing), 03120 (Freshwater fishing), 03220 (Freshwater aquaculture). Companies may use multiple SIC codes if they operate across several of these related activities. When registering with Companies House, businesses should select the code that best represents their primary activity.
You can search for companies with SIC code 03210 (Marine aquaculture) using UVAGATRON's company explorer, which allows filtering by SIC code, location, and company status. Alternatively, Companies House offers a basic search on their website. Our platform adds risk intelligence, director networks, and signals from 50+ government databases to each company record.
Search, filter, and analyse 506 companies classified under this SIC code with AI-powered risk intelligence.
Data sourced from Companies House, HM Land Registry, FCA Register, and 50+ government databases. SIC classification follows the UK Standard Industrial Classification of Economic Activities 2007 (SIC 2007). Last updated: 2026-04-17.