You must choose a name for your business if you’re setting up:

  • a private limited company (Ltd)
  • a limited liability partnership (LLP)
  • a limited partnership (LP)
  • an ‘ordinary’ business partnership
  • as a sole trader

As a sole trader or ordinary business partnership you don’t have to register with Companies House - but you still need to follow the rules for choosing a business name.

What you can and can’t use

Your name can’t be exactly the same as another registered company’s name - search the Companies House register to see if a name has been taken.

Your registered company or LLP name can’t be similar to (‘too like’ or ‘same as’) another registered name.

You may be able to get permission from an existing registered company or LLP to use a name that’s the same or similar to theirs if your company or LLP is part of the same group.

Your name also can’t:

  • contain a ‘sensitive’ word or expression unless you get permission
  • suggest a connection with government or local authorities
  • be offensive

When registered, there are rules about how and where you must display your company name.

Similar names

Your name must be unique - it can’t be the ‘same as’ or ‘too like’ an existing name.

‘Same as’ names

‘Same as’ names are those where the only difference to an existing name is:

  • punctuation
  • a special character, for example the ‘plus’ sign
  • one or more words listed in the guidance on naming


‘Hands UK Ltd’ and ‘Hand’s Ltd’ are the same as ‘Hands Ltd’, and ‘ Ltd’ is too similar to ‘Box Ltd’.

You can register a ‘same as’ name as long as:

  • your company or LLP is part of the same group as the company or LLP with the existing name
  • you have written confirmation that the company or LLP has no objection to your new name

‘Too like’ names

You may have to change your name if someone complains and Companies House agrees it’s ‘too like’ a name registered before yours.


‘Dynamic Technology LLP’ is too like ‘Dinamix Technology LLP’.

Companies House will contact you if they think your name is too like another - and tell you what to do.

When you don’t have to use ‘limited’ in your name

The names of most private limited companies in the UK must end in either ‘Limited’ or ‘Ltd’ or the Welsh equivalents ‘Cyfyngedig’ and ‘Cyf’ if you registered the company in Wales.

You can apply to leave ‘limited’ out of your name, for example if you’re a charity or sports club, if your company is limited by guarantee and your articles of association say your company:

  • has objects of promotion or regulation of commerce, art, science, education, religion, charity or any profession
  • must spend its income on promoting its objects
  • can’t pay its members, for example through dividends
  • requires each member to contribute to company assets if it’s wound up during their membership, or within a year of them stopping being a member

Business names

You can trade using a different name to your registered name. This is known as a ‘business name’.

Business names must not:

  • include ‘limited’, ‘Ltd’, ‘limited liability partnership, ‘LLP’, ‘public limited company’ or ‘plc’
  • be the same as an existing trade mark
  • contain a ‘sensitive’ word or expression unless you get permission

You’ll need to register your name as a trade mark if you want to stop people from trading under your business name.

You can’t use another company’s trade mark as your business name.

Correspondence address

You can use the business name on your stationery and correspondence but depending on your legal structure you must include:

  • the names of your partners
  • the company name
  • your personal name if you’re a sole trader