What Is a Valid UK Company Number? Format and Requirements Explained

Discover the format of a valid UK company number, including prefixes and digit combinations used for different regions in the UK.

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A valid UK company number is a unique combination of 8 characters: it can be either digits or a combination of letters and digits, provided upon registration with Companies House. The format typically starts with a prefix (e.g., SC for Scotland or NI for Northern Ireland), followed by 6 digits. For companies registered in England and Wales, the number usually consists of 8 digits.

FAQs & Answers

  1. What does a UK company number look like? A UK company number consists of 8 characters, which may be all digits or a combination of letters and digits. It often starts with a regional prefix such as SC for Scotland or NI for Northern Ireland, followed by 6 digits.
  2. Where can I find my company's UK company number? You can find your UK company number on your company registration documents or by searching the Companies House online database using your company details.
  3. Is the UK company number different for companies registered in Scotland? Yes, companies registered in Scotland have UK company numbers that start with the prefix SC followed by 6 digits, differentiating them from companies registered in England and Wales.

Watch More

For more information on UK business regulations and company registration details, check out our related videos on Companies House procedures and how to verify a UK company number online.

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