Free Companies House Register Changes – New & Dissolved Companies (Monthly CSV/ZIP Download)
Download New and Dissolved Company Data – Instantly, No Signup
DataLedger provides free, regularly updated Companies House delta files showing all newly incorporated (or reinstated) and dissolved companies in the UK. Accessing monthly changes to UK company data has never been easier – perfect for analysis, research, business intelligence, and more.
Track Every Change in the UK Register – Free, Easy, and Updated Monthly
Get instant access to monthly changes in UK company data. Download free, ready-to-use ZIP files each containing two CSVs:
_Added: All newly formed companies in the month with companies that have been reinstated
_Removed: All dissolved companies
No registration, no paywall, no restrictions.
Why Use DataLedger’s Delta Files?
Open access: No login, no paywall, fully open
Fresh data: Always up to date for analysis or app development
Simple integration: CSVs work with Excel, Python, R, SQL, and more
What’s Included?
Each CSV contains a full snapshot of key company information, including:
Company name, number, and address details
Dates of incorporation or dissolution
Company category and status
SIC codes and registered office location
Previous names, account and confirmation statement dates
Ideal for market analysts, journalists, developers, academics, and anyone interested in UK business trends.
Download Free UK Company Delta Files
Instructions:
Each ZIP contains two CSVs:
_Added.csvfor new company formations and reinstatements_Removed.csvfor companies dissolved in that month
| Month | ZIP Download |
|---|---|
| June 2025 | Download ZIP |
| May 2025 | Download ZIP |
| April 2025 | Download ZIP |
| March 2025 | Download ZIP |
| February 2025 | Download ZIP |
| January 2025 | Download ZIP |
| December 2024 | Download ZIP |
| November 2024 | Download ZIP |
| October 2024 | Download ZIP |
| September 2024 | Download ZIP |
| August 2024 | Download ZIP |
| July 2024 | Download ZIP |
| June 2024 | Download ZIP |
| May 2024 | Download ZIP |
| April 2024 | Download ZIP |
| March 2024 | Download ZIP |
| January 2024 | Download ZIP |
| November 2023 | Download ZIP |
Note: Any missing months are due to Companies House not publishing data for that period.
Frequently Asked Questions (FAQ)
What is a Companies House delta file?
A delta file lists all UK companies that have been newly registered, reinstated or dissolved in a given month. This makes it easy to track changes without processing the entire Companies House register.
How often are these files updated?
We publish new delta files at the start of each month, reflecting all company formations and dissolutions from the previous month.
Can I use this data for commercial purposes?
Yes. There are no restrictions on commercial or non-commercial use. Attribution to DataLedger is appreciated but not required.
What’s included in each CSV?
Company number, name, date, status, SIC codes, and registered office.
Where does the data come from?
Directly from Companies House bulk data and API, processed and cleaned by DataLedger.
Can I automate downloads?
Yes, the URLs are predictable:https://api.dataledger.uk/resources/ch/DataLedger_BasicCompanyDataAsOneFile-YYYY-MM-01_Deltas.zip
For feedback, bulk access, or custom requests, contact us.