SIC code 27330 — Manufacture of wiring devices — is a specialist classification with 77 active companies in the UK. Despite its small size, this category represents an important part of the manufacturing sector. 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 Manufacture of wiring devices industry page.
The average company age is 18.0 years, indicating an established sector with a mix of long-running businesses and newer entrants. The sector is experiencing strong growth, with 26% of active companies formed since 2020 and 32% during the 2010s. This sustained formation rate points to continued demand for manufacture of wiring devices services.
SIC code 27330 stands for "Manufacture of wiring devices" 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 77 active companies registered under SIC code 27330 in the UK, out of 84 total registrations. This gives a survival rate of 92%, meaning 8% of companies registered under this code have since dissolved. These figures are based on Companies House data and updated regularly.
The sector is growing: 26% of currently active SIC 27330 companies were formed since 2020, and 32% during the 2010s. This sustained formation rate indicates ongoing demand for manufacture of wiring devices services in the UK.
Companies classified under SIC 27330 have an average age of 18.0 years. This indicates a mature sector where businesses tend to operate long-term.
Related SIC codes within the same division include: 27900 (Manufacture of other electrical equipment), 27400 (Manufacture of electric lighting equipment), 27120 (Manufacture of electricity distribution and control apparatus), 27110 (Manufacture of electric motors, generators and transformers). 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 27330 (Manufacture of wiring devices) 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 77 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.