SIC code 23430 — Manufacture of ceramic insulators and insulating fittings — is a specialist classification with 57 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 ceramic insulators and insulating fittings industry page.
The average company age of 4.5 years suggests a relatively young and dynamic sector, with many businesses having been established in recent years. Growth has been exceptional recently: 81% of all active companies were formed since 2020, marking this as one of the fastest-expanding classifications. The 2010s contributed another 12%, meaning the vast majority of businesses are relatively new.
SIC code 23430 stands for "Manufacture of ceramic insulators and insulating fittings" 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 57 active companies registered under SIC code 23430 in the UK, out of 71 total registrations. This gives a survival rate of 80%, meaning 20% of companies registered under this code have since dissolved. These figures are based on Companies House data and updated regularly.
The sector is growing: 81% of currently active SIC 23430 companies were formed since 2020, and 12% during the 2010s. This sustained formation rate indicates ongoing demand for manufacture of ceramic insulators and insulating fittings services in the UK.
Companies classified under SIC 23430 have an average age of 4.5 years. This young average age reflects a sector with many recent market entrants and rapid turnover.
Related SIC codes within the same division include: 23700 (Cutting, shaping and finishing of stone), 23610 (Manufacture of concrete products for construction purposes), 23410 (Manufacture of ceramic household and ornamental articles), 23120 (Shaping and processing of flat glass). 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 23430 (Manufacture of ceramic insulators and insulating fittings) 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 57 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.