Find a registration number

    How to find a company's registration number in United Kingdom

    Source-cited registry guidance — access and document fees vary by source.

    Search Companies House at the official source

    Start with Companies House for United Kingdom. LemReveal has not established an available native register search for this page; indexed or secondary records are not complete register coverage.

    Open official portalRequest a record check

    Official access and fees vary. A human request is an enquiry, not a guaranteed extract or completed purchase.

    Reviewed by LemReveal Research TeamContent reviewed June 2026Primary source: Companies House

    How do I find a company's registration number in United Kingdom?

    Search the company's name on Companies House at https://www.gov.uk/government/organisations/companies-house. The result page shows its registration number — the same identifier that appears on invoices, contracts, and government filings.

    Step-by-step

    1. 1

      Open Companies House

      Navigate to https://www.gov.uk/government/organisations/companies-house.

      https://www.gov.uk/government/organisations/companies-house
    2. 2

      Search by company name

      Type the exact trading or legal name. Partial matches usually work; add the city if the name is common.

    3. 3

      Copy the registration number

      The registration number is displayed at the top of the entity profile. It is the authoritative ID for cross-referencing.

    4. 4

      Confirm it's the right entity

      Check the registered address and incorporation date to be sure you have the correct legal entity, especially for groups with similarly named subsidiaries.

    Open Companies HouseAll United Kingdom records

    United Kingdom: choosing and checking the right record

    Choose the correct source
    Start with the exact Companies House company number. If you only have a name, compare the legal name and previous names, then open the company profile rather than treating the search-results list as confirmation.
    Confirm the entity
    Keep leading zeros and jurisdiction prefixes such as SC or NI. Compare the registered office and incorporation date with the counterparty's documents. A sole trader or trading brand may not have a Companies House record.

    Check current access and document options on the official Companies House site. For search limitations and missing-result guidance, see the United Kingdom registry guide.

    Frequently asked questions

    Where is a United Kingdom company's registration number published?

    Look for the identifier on the entity's record or available extract in Companies House (https://www.gov.uk/government/organisations/companies-house). Compare it with the counterparty's documentation; publication requirements and identifier labels vary by jurisdiction.

    Is looking up a United Kingdom registration number free?

    LemReveal's basic lookup is free. Check Companies House's current access rules: an official portal can require an account, charge for searches or restrict particular documents.

    How do I look up a UK company?

    You can search by company name or registration number. Companies House provides free public access to all registered company data including directors, filing history, and accounts. Enter a name above to try it.

    People also ask about find a company's registration number in United Kingdom

    The exact questions searchers type into Google — answered from the primary source.

    Is the United Kingdom company register free to search?

    Yes. Basic company lookups on the Companies House are free — you can search by company name or registration number, view legal status, registered address and (usually) directors at no cost. Some jurisdictions charge a small fee only for downloading full filed documents.

    What is the official United Kingdom business registry?

    The Companies House is the official public register of companies incorporated in United Kingdom. It is operated by the government and is the primary source cited on this page — https://www.gov.uk/government/organisations/companies-house.

    Where do I find a United Kingdom company's registration number?

    Every registered United Kingdom entity has a unique registration number issued at incorporation. It appears on invoices, contracts, the company's website footer (often in a "legal" section), and prominently on its Companies House record.

    Is a United Kingdom registration number the same as a VAT number?

    No. The registration number is the identifier issued by the Companies House when the company was formed. The VAT number is a separate tax identifier issued (only if the company is VAT-registered) by the national tax authority. Many small companies have a registration number but no VAT number.

    Related guides and tools

    More United Kingdom guides

    United Kingdom data