SIC code 74100 (specialised design activities) is one of the most widely used business classifications in the UK, with 30,888 active companies registered under this code. It falls under Section M (Professional, scientific and technical activities) of the UK SIC 2007 classification system. The average company age is 7.2 years.
See the full industry analysis on the specialised design activities industry page.
SIC code 74100 stands for "specialised design activities" under the UK Standard Industrial Classification (SIC 2007) system. It belongs to Section M — Professional, scientific and technical activities. Companies use this code when registering with Companies House to indicate their primary business activity.
There are currently 30,888 active companies registered under SIC code 74100 in the UK, out of 33,907 total registrations (including dissolved companies).
The top locations for companies classified under SIC 74100 are: THAME (59). These areas represent the highest concentration of specialised design activities businesses in the UK.
Search, filter, and analyse 30,888 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.