SIC code 66300 classifies businesses engaged in fund management activities. There are 4,240 active companies registered under this code in the UK, forming a substantial sector within the national economy. It falls under Section K (Financial and insurance activities) 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 Fund management activities industry page.
With a 91% survival rate, this sector shows strong business longevity. Only 16 of 4,684 companies registered under this code have dissolved, well below the UK average. Companies in this sector average 8.7 years old, reflecting a balanced mix of established businesses and newer market participants. Growth has been exceptional recently: 48% of all active companies were formed since 2020, marking this as one of the fastest-expanding classifications. The 2010s contributed another 38%, meaning the vast majority of businesses are relatively new. Geographically, the sector is heavily concentrated: LONDON alone accounts for 52% of all active companies (2,207 firms). The top three locations — LONDON, EDINBURGH, BIRMINGHAM — represent 57% of the sector.
SIC code 66300 stands for "Fund management activities" under the UK Standard Industrial Classification (SIC 2007) system. It belongs to Section K — Financial and insurance activities. 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 4,240 active companies registered under SIC code 66300 in the UK, out of 4,684 total registrations. This gives a survival rate of 91%, meaning 9% of companies registered under this code have since dissolved. These figures are based on Companies House data and updated regularly.
The top locations for fund management activities companies (SIC 66300) are: LONDON (2,207), EDINBURGH (139), BIRMINGHAM (50), MANCHESTER (41), WRITTLE (40). Geographic concentration can reflect local economic conditions, industry clusters, or proximity to key markets and supply chains.
The sector is growing: 48% of currently active SIC 66300 companies were formed since 2020, and 38% during the 2010s. This sustained formation rate indicates ongoing demand for fund management activities services in the UK.
Companies classified under SIC 66300 have an average age of 8.7 years. This suggests a balanced sector with both established players and newer entrants. Notable companies include WELLINGTON MANAGEMENT INTERNATIONAL LIMITED, ASPECT CAPITAL LIMITED, PIMCO EUROPE LTD.
Related SIC codes within the same division include: 66190 (Activities auxiliary to financial intermediation n.e.c.), 66220 (Activities of insurance agents and brokers), 66290 (Other activities auxiliary to insurance and pension funding), 66120 (Security and commodity contracts dealing activities). 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 66300 (Fund management activities) 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 4,240 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.