SIC code 25620 classifies businesses engaged in machining. There are 2,622 active companies registered under this code in the UK, forming a substantial sector within the national economy. It falls under Section C (Manufacturing) 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 Machining industry page.
With an average age of 21.8 years, companies in this sector tend to be well-established. This maturity reflects high barriers to entry and strong business continuity among surviving firms. Company formation is spread across decades: 20% pre-1990, 11% in the 1990s, 22% in the 2000s, 23% in the 2010s, and 23% since 2020. Companies are geographically dispersed across the UK, with no single location dominating. The top three locations — LONDON, LEICESTER, SHEFFIELD — together account for just 6% of the sector.
SIC code 25620 stands for "Machining" under the UK Standard Industrial Classification (SIC 2007) system. It belongs to Section C — Manufacturing. 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 2,622 active companies registered under SIC code 25620 in the UK, out of 2,919 total registrations. This gives a survival rate of 90%, meaning 10% of companies registered under this code have since dissolved. These figures are based on Companies House data and updated regularly.
The top locations for machining companies (SIC 25620) are: LONDON (95), LEICESTER (38), SHEFFIELD (34), COVENTRY (33), BIRMINGHAM (31). Geographic concentration can reflect local economic conditions, industry clusters, or proximity to key markets and supply chains.
The sector is growing: 23% of currently active SIC 25620 companies were formed since 2020, and 23% during the 2010s. This sustained formation rate indicates ongoing demand for machining services in the UK.
Companies classified under SIC 25620 have an average age of 21.8 years. This indicates a mature sector where businesses tend to operate long-term. Notable companies include EATON LIMITED, SHIELD ENGINEERING (SYSTON) LIMITED, ROLLS-ROYCE POWER ENGINEERING LIMITED.
Related SIC codes within the same division include: 25990 (Manufacture of other fabricated metal products n.e.c.), 25110 (Manufacture of metal structures and parts of structures), 25120 (Manufacture of doors and windows of metal), 25610 (Treatment and coating of metals). 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 25620 (Machining) 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 2,622 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.