There are 3,430 active companies in the site preparation sector in the UK (SIC code 43120). This sector falls under Section F — Construction — of the UK Standard Industrial Classification. The sector has a relatively low 15.8% dissolution rate — 3,430 of 4,747 registrations remain active. The sector is experiencing rapid growth, with 135.4% of active businesses incorporated since 2020 — indicating strong recent demand. 118% of companies were formed after 2010, marking this as a sector with predominantly recent entrants. The average company age in this sector is 9.1 years. London leads with 7% of companies in this sector. Companies in this sector hold 166 government contracts valued at £400.6M.
Source: Companies House register via UVAGATRON, October 2026
A rapidly growing sector with 135.4% of active companies formed since 2020.
The site preparation sector has a <Link href="/glossary/company-dissolution">15.8% dissolution rate</Link>. The average active company in this sector is 9.1 years old. Geographic concentration: 7% in LONDON.
Companies in the site preparation sector have been awarded 166 government contracts worth £400.6M in total.
There are 3,430 active companies classified under SIC code 43120 (Site preparation) in the UK, out of 4,747 total registered.
SIC code 43120 stands for "Site preparation". It belongs to Section F — Construction of the UK Standard Industrial Classification.
The largest concentrations are in LONDON (252), BIRMINGHAM (105), KIDDERMINSTER (52).
The average active site preparation company in the UK is 9.1 years old, with the oldest registration dating back to 1953.
Our database contains 32,904 data signals across 11 categories for active site preparation companies. The largest category is Governance with 14,160 signals from 5 government sources.
5.9M companies, 50M+ signals from 53 government sources. Risk scores, director networks, entity analysis.