Company lookup

Company number

Look up

Try 00445790 (Tesco) for companies with downloadable annual accounts.

Bulk lookup from a spreadsheet

Upload an .xlsx or .csv that has a column of company numbers. Every row is looked up — throttled to about 2 per second, within Companies House’s limit — and a new spreadsheet is produced with the data appended to your original columns.

Also fetch insolvency — administrators & practitioners (a second API call per company, so it takes about twice as long)