How can I contact Companies House?

You can reach Companies House by phone during their operating hours of Monday to Friday, 8:30am to 6:00pm, at 0303 1234 500. Alternatively, if you send a letter, email or document to Companies House, include: the full name of the company you’re enquiring about the company number if registered - find information about a company Email: enquiries@companieshouse.gov.uk   Companies registered in England, Wales and Scotland must send all documents to their main office in Cardiff. Address: Companies House Crown Way Cardiff CF14 3UZ DX 33050 Cardiff   Companies registered in Northern Ireland must send all documents to our office in Belfast. Address:  Companies House Northern Ireland 2nd Floor, The Linenhall 32-38 Linenhall Street Belfast BT2 8BG DX481 N.R. Belfast 1