SIC code 05101 — Deep coal mines — is a specialist classification with 28 active companies in the UK. Despite its small size, this category represents an important part of the mining and quarrying sector. It falls under Section B (Mining and quarrying) 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 Deep coal mines industry page.
The average company age is 12.4 years, indicating an established sector with a mix of long-running businesses and newer entrants. Growth has been exceptional recently: 46% of all active companies were formed since 2020, marking this as one of the fastest-expanding classifications. The 2010s contributed another 21%, meaning the vast majority of businesses are relatively new. The highest concentration of deep coal mines companies is in LONDON, with 9 active firms (32% of the sector).
SIC code 05101 stands for "Deep coal mines" under the UK Standard Industrial Classification (SIC 2007) system. It belongs to Section B — Mining and quarrying. 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 28 active companies registered under SIC code 05101 in the UK, out of 35 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 top locations for deep coal mines companies (SIC 05101) are: LONDON (9). Geographic concentration can reflect local economic conditions, industry clusters, or proximity to key markets and supply chains.
The sector is growing: 46% of currently active SIC 05101 companies were formed since 2020, and 21% during the 2010s. This sustained formation rate indicates ongoing demand for deep coal mines services in the UK.
Companies classified under SIC 05101 have an average age of 12.4 years. This suggests a balanced sector with both established players and newer entrants.
Related SIC codes within the same division include: 05102 (Open cast coal working), 05200 (Mining of lignite), 0501 (Fishing), 0502 (Fish farming). 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 05101 (Deep coal mines) 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 28 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.