Find companies on the UK register by name, returning their company numbers.

Covers live and dissolved companies alike, ranked by relevance; check status before assuming a hit is trading. Use the returned company_number with every other tool. It searches company names only, so it cannot find a company from a director's name.

Get a company's register entry: name, status, type, incorporation date, registered office, business activities (SIC codes), previous names, and filing deadlines.

Read warnings first: it lists overdue accounts or confirmation statements, insolvency history, proposals to strike off, and a disputed or undeliverable registered office. has_charges says whether list_charges will find anything. One upstream request.

List a company's directors, secretaries and LLP members, with appointment dates, occupation, nationality and month and year of birth.

active_count and resigned_count cover the whole company even when one page does not. Addresses are deliberately left out.

List what a company has filed at Companies House, newest first: accounts, confirmation statements, officer changes, charges, resolutions and so on, each with its form code and a readable description.

Use category rather than paging through everything. Document contents are not returned, only whether a copy exists.

List charges (secured lending, such as mortgages and debentures) registered against a company: who holds them, when created, whether satisfied, and whether a floating charge covers everything the company owns.

A company with no charges returns an empty list, not an error.

Get a company's current registered office and every recorded change to it, newest first, with old and new addresses where the register has them.

Frequent moves, or a move shortly before insolvency, are worth pointing out. Two upstream requests.

List who owns or controls a company (its persons with significant control): the people and companies holding over 25% of shares or votes, or the right to appoint the board, and how.

A corporate owner comes with its registration number; if it is a UK company, pass that to get_company_profile to follow the chain upwards. An empty list can mean the company filed a statement that it has no PSC, which this tool does not read.