SIC code 80100 covers private security activities activities in the UK, with 11,870 active companies currently registered. This represents a significant segment of UK business activity. It falls under Section N (Administrative and support service 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 Private security activities industry page.
With a 81% survival rate, this sector shows strong business longevity. Only 51 of 14,601 companies registered under this code have dissolved, well below the UK average. The average company age of 5.3 years suggests a relatively young and dynamic sector, with many businesses having been established in recent years. Growth has been exceptional recently: 69% of all active companies were formed since 2020, marking this as one of the fastest-expanding classifications. The 2010s contributed another 24%, meaning the vast majority of businesses are relatively new. The leading locations for this sector are LONDON (2,496), BIRMINGHAM (373), MANCHESTER (343), which together account for 27% of active companies.
SIC code 80100 stands for "Private security activities" under the UK Standard Industrial Classification (SIC 2007) system. It belongs to Section N — Administrative and support service 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 11,870 active companies registered under SIC code 80100 in the UK, out of 14,601 total registrations. This gives a survival rate of 81%, meaning 19% of companies registered under this code have since dissolved. These figures are based on Companies House data and updated regularly.
The top locations for private security activities companies (SIC 80100) are: LONDON (2,496), BIRMINGHAM (373), MANCHESTER (343), ILFORD (266), LUTON (159). Geographic concentration can reflect local economic conditions, industry clusters, or proximity to key markets and supply chains.
The sector is growing: 69% of currently active SIC 80100 companies were formed since 2020, and 24% during the 2010s. This sustained formation rate indicates ongoing demand for private security activities services in the UK.
Companies classified under SIC 80100 have an average age of 5.3 years. This suggests a balanced sector with both established players and newer entrants. Notable companies include G4S CASH SOLUTIONS (UK) LIMITED, ONFIDO LTD, LOOMIS UK LIMITED.
Related SIC codes within the same division include: 80200 (Security systems service activities), 80300 (Investigation activities), 8021 (General secondary education), 8042 (Adult and other education not elsewhere classified). 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 80100 (Private security 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 11,870 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.