This question comes up during many website builds. So here’s the answer (as at August 2012):
In brief, Limited Companies are required to display the following information on their website(s):
The registered company name- The fact that it is a limited company (most companies will already indicate this by including Limited or Ltd in the company name)
- The part of the United Kingdom in which the company is registered
- (i.e. England and Wales, or Wales, or Scotland, or Northern Ireland)
- The company’s registered number
- The address of the company’s registered office
Companies House advises that this information should appear on the ‘website’ (not every web page). So the information might commonly be placed on the Contact us page. But frequently it is discretely included on every page, usually in the footer.
Other trading disclosure regulations apply to particular types of company. Read the full guidelines at Companies House here.
Not incorporated?
If your business isn’t incorporated (e.g. sole trader or partnership), it’s still worth adhering to these guidelines wherever possible. Not disclosing key information about your business can be very off-putting for visitors to your website.