Refresh cadence
The library refreshes monthly, on or after the 10th, once the latest complete calendar month is available from Companies House. A refresh is all or nothing: if the automated checks fail, the previous good release stays published and no partial update is shown. Pages are updated in place, so a page's address does not change between releases.
What each release records
Every release records the provenance of its figures, so a number can be reproduced under the exact rules and data that produced it:
- the methodology version;
- the geography version;
- the industry (SIC mapping) version;
- the Companies House source and its extraction date;
- the observation window — the latest complete month and the 24-month series;
- the date the figures were produced;
- and what changed since the previous release.
Citing a figure
Cite the specific page and the release month, and note that figures are Launch Register Company Statistics derived from Companies House public data under the Open Government Licence v3.0. Because pages are updated in place, quoting the release month makes a figure reproducible even after the next refresh. The methodology sets out exactly how each figure is produced.