SIC code 7420 classifies architectural and engineering activities and related technical consultancy businesses. There are 13 active companies registered under this code in the UK. It falls under Section K (Real estate, renting and business activities) of the UK SIC 2007 classification system. With an average company age of 39.6 years, this is a well-established sector with mature businesses.
SIC code 7420 stands for "Architectural and engineering activities and related technical consultancy" under the UK Standard Industrial Classification (SIC 2007) system. It belongs to Section K — Real estate, renting and business activities. Companies use this code when registering with Companies House to indicate their primary business activity.
There are currently 13 active companies registered under SIC code 7420 in the UK, out of 132 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.