Track newly registered UK dormant company companies at Companies House. This page lists recent incorporations and formation trends for Dormant company.

1,155 new Dormant company companies were registered in the last 90 days - about 13 a day.

Monthly registrations over recent complete months have ranged from 344 to 1,639.

Last month's registrations were up 28% versus the month before.

A sample of this week's matching leads

FRIENDS' PROVIDENT LIFE OFFICE
York
WALKIES DOG FIELDS CHESTER LIMITED
Incorporated 2026-10-05 · London
WALKIES DOG FIELDS CHESTER NORTH LIMITED
Incorporated 2026-10-05 · London
ATMAN HOMES LTD
Incorporated 2026-10-05 · Poole
CAERUS LONDON 2 LTD
Incorporated 2026-10-05 · London
HAMSARD 3875 LIMITED
Incorporated 2026-10-05 · Birmingham

NewcoSignal monitors Companies House daily and emails you new dormant company companies as they are registered.

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Related SIC codes

SIC 99000 - Activities of extraterritorial organisations and bodies

Frequently Asked Questions

What is SIC code 99999?

SIC code 99999 is the UK Standard Industrial Classification code for "Dormant company". Every company registered at Companies House must declare at least one SIC code describing its main business activity.

How many new companies register with SIC code 99999 each week?

Use the date range filter above to see the exact count of new registrations for SIC code 99999 over your chosen period. Volume varies by sector and economic conditions.

Can I set up alerts for new SIC 99999 companies?

Yes. Save a search in NewcoSignal filtered to the industry category that includes SIC code 99999 and receive a weekly or daily email digest of every new matching company. Available on all plans including the free tier.

Are newly registered SIC 99999 companies good B2B leads?

New company registrations under any SIC code represent businesses that are actively choosing their first suppliers - accountant, insurance, IT support, software, and more. Being first in touch with newly incorporated businesses before competitors reach them is a significant commercial advantage.

What is the difference between a UK SIC code and a US NAICS code?

UK SIC codes (like 99999) are used by Companies House to classify business activities in Great Britain. NAICS codes are the equivalent classification used in the United States, Canada, and Mexico. The two systems cover similar industries but with different structures and numbering. Use the SIC to NAICS converter to find the nearest North American equivalent for any UK SIC code.