SIC code 84300 classifies compulsory social security activities businesses. There are 27 active companies registered under this code in the UK. It falls under Section O (Public administration and defence) of the UK SIC 2007 classification system. The average company age is 5.4 years.
SIC code 84300 stands for "Compulsory social security activities" under the UK Standard Industrial Classification (SIC 2007) system. It belongs to Section O — Public administration and defence. Companies use this code when registering with Companies House to indicate their primary business activity.
There are currently 27 active companies registered under SIC code 84300 in the UK, out of 36 total registrations (including dissolved companies).
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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.