SIC code 80100 (Private security activities) is one of the most widely used business classifications in the UK, with 11,870 active companies registered under this code. It falls under Section N (Administrative and support service activities) of the UK SIC 2007 classification system. The average company age is 5.2 years.
See the full industry analysis on the Private security activities industry page.
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.
There are currently 11,870 active companies registered under SIC code 80100 in the UK, out of 14,601 total registrations (including dissolved companies).
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: 2026-04-05.