66 active UK companies are classified under dormant company, no significant accounting transactions (SIC code 9999), a specialised sector. This sector falls under Section X — Special codes — of the UK Standard Industrial Classification. 36.4% of companies ever registered in this sector have dissolved, leaving 66 active today. This is a mature sector with limited new entrants — only 0% of companies were incorporated since 2020. 189% of active companies were formed before 2000, reflecting the sector's deep roots in the UK economy. The average company in this sector is 73.1 years old, suggesting established and stable operators. Uxbridge leads with 15% of companies in this sector. The sector's longest-standing company was incorporated in 1873.
Source: Companies House register via UVAGATRON, April 2026
A mature, established sector with companies averaging 73.1 years.
The dormant company, no significant accounting transactions sector has a <Link href="/glossary/company-dissolution">36.4% dissolution rate</Link>. The average active company in this sector is 73.1 years old. Geographic concentration: 15% in UXBRIDGE.
There are 66 active companies classified under SIC code 9999 (Dormant company, no significant accounting transactions) in the UK, out of 253 total registered.
SIC code 9999 stands for "Dormant company, no significant accounting transactions". It belongs to Section X — Special codes of the UK Standard Industrial Classification.
The largest concentrations are in UXBRIDGE (10).
The average active dormant company, no significant accounting transactions company in the UK is 73.1 years old, with the oldest registration dating back to 1873.
Our database contains 307 data signals across 4 categories for active dormant company, no significant accounting transactions companies. The largest category is Governance with 145 signals from 4 government sources.
5.9M companies, 50M+ signals from 53 government sources. Risk scores, director networks, entity analysis.