96,400 active companies in the UK are classified under dormant company (SIC code 99999). This sector falls under Section U — Activities of extraterritorial organisations — of the UK Standard Industrial Classification. The sector has a relatively low 17% dissolution rate — 96,400 of 125,389 registrations remain active. The sector is experiencing rapid growth, with 101.7% of active businesses incorporated since 2020 — indicating strong recent demand. 94% of companies were formed after 2010, marking this as a sector with predominantly recent entrants. The average company age in this sector is 14.3 years. 337 large companies, 11 medium-sized firms operate in this sector. London leads with 21% of companies in this sector. Companies in this sector hold 1,587 government contracts valued at £5.4B. The sector's longest-standing company was incorporated in 1864.
Source: Companies House register via UVAGATRON, October 2026
A rapidly growing sector with 101.7% of active companies formed since 2020.
The dormant company sector has a <Link href="/glossary/company-dissolution">17% dissolution rate</Link>. The average active company in this sector is 14.3 years old. Geographic concentration: 21% in LONDON.
Companies in the dormant company sector have been awarded 1,587 government contracts worth £5437.7M in total.
There are 96,400 active companies classified under SIC code 99999 (Dormant Company) in the UK, out of 125,389 total registered.
SIC code 99999 stands for "Dormant Company". It belongs to Section U — Activities of extraterritorial organisations of the UK Standard Industrial Classification.
The largest concentrations are in LONDON (20,318), MANCHESTER (3,209), KENILWORTH (2,044).
The average active dormant company company in the UK is 14.3 years old, with the oldest registration dating back to 1864.
Our database contains 875,549 data signals across 12 categories for active dormant company companies. The largest category is Governance with 419,812 signals from 6 government sources.
5.9M companies, 50M+ signals from 53 government sources. Risk scores, director networks, entity analysis.