Choosing a name for your new business is one of those moments that feels significant. It is the foundation of your brand, the first thing clients see on a contract, and the name that will sit at the top of every invoice you send. Before you get too attached to it, though, you need to confirm that it is actually available to use.
The good news is that checking whether a company name is free to use in the UK is a straightforward process. Most of it can be done online in a matter of minutes, and the primary tool you need is entirely free.
How Do I Find Out If a Name Is Available?
The first place to look is Companies House, which is the UK’s official register of limited companies. You can search the register directly through the Companies House website, and it will show you whether any existing company is already using the name you have in mind.
The search is free and open to anyone. You simply type in your proposed name and the results will return any exact matches or names that are considered too similar under Companies House naming rules. It takes seconds, and it should always be the first step before you do anything else.
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How Do I Check If a Business Name Is Available in the UK?
Checking a business name in the UK involves more than one layer of research. Companies House tells you whether the name is taken as a registered limited company, but it does not tell you whether a sole trader or partnership is already trading under that name, and it does not cover trademark conflicts.
This is why most business advisers recommend checking in three places: Companies House for the registered name, the UK Intellectual Property Office (IPO) trademark register for any registered trademarks, and a general web search to see whether any other businesses are already operating under that name. Each of these checks protects you from a different type of naming conflict.
| Search Method | What It Covers | Cost | Where to Access |
|---|---|---|---|
| Companies House WebCHeck | Limited companies and LLPs | Free | beta.companieshouse.gov.uk |
| Intellectual Property Office (IPO) | Registered UK trademarks | Free | gov.uk/search-for-trademark |
| Nominet WHOIS | .co.uk domain registration | Free | nominet.uk |
| Google / Bing search | General trading names and online presence | Free | google.co.uk |
| HMRC Self-Assessment | Sole traders and partnerships | N/A | Via HMRC account |
How to Check If a Name Has Been Taken for a Company
When you search Companies House, it will not only flag exact matches but also names that are considered “the same as” an existing name under its rules. This matters more than many first-time founders realise. A name does not have to be identical to be rejected; it just needs to be indistinguishable in the eyes of Companies House, which applies specific rules about ignoring punctuation, common words, and certain suffixes.
For example, a name like “Northern Peak Consulting Ltd” could be flagged as too similar to “Northern Peak Consultancy Limited” even though the two names are not word-for-word identical. This is why it is worth searching variations of your proposed name, not just the exact version you want, to get a clearer picture before you invest in branding.
How to Check If a Name Is Available for a Company
Beyond the Companies House register, you should also consider whether your chosen name will work as a domain name and on social media platforms. A company called “Anchor Point Solutions Ltd” might be perfectly registrable, but if the .co.uk and .com domains are already taken and the social handles are in use, you may face ongoing brand confusion.
Checking domain availability is free through any domain registrar, and most social platforms allow you to search usernames before creating an account. Doing all of this in one sitting, before you file anything with Companies House, will save you a significant amount of time and money further down the line.
| Common Reasons a Company Name Gets Rejected | Explanation |
|---|---|
| Identical to an existing name | Direct match already on the register |
| Too similar to an existing name | Indistinguishable under Companies House rules |
| Contains a sensitive word | e.g. “Royal,” “British,” “National” require permission |
| Implies a connection to government | Names suggesting official status are restricted |
| Contains offensive language | Automatically rejected |
| Misleading about company type | e.g. using “Bank” or “Insurance” without authorisation |
Where Can I Check If a Company Name Is Available: Your Full Checklist
Getting this right before you register saves you from the frustrating and sometimes costly process of rebranding early on. The Companies House search is your starting point, but a thorough check covers trademarks, domains, and existing trading names too. Taking an hour to do all of this properly gives you confidence that the name you choose is genuinely yours to use.
It is also worth thinking about the long-term picture. A name that is legally available today might still create confusion if it is close to an established brand in your sector. Customers search online, they compare companies, and a name that is too close to a competitor’s can erode trust before you have even had the chance to build it.
Once you have confirmed availability across all the relevant registers, you are in a strong position to move forward with registration. Companies House company registration can be completed online for a fee of just £50 in most cases, and the process typically takes 24 hours or less when done through the standard online route.
Where Can I Check If a Name Is Available: Common Questions Answered
The Companies House name search tool at find-and-update.company-information.service.gov.uk is the official starting point for checking UK company name availability. It is free to use and searches the full register of incorporated companies.
Yes, searching the Companies House register costs nothing and requires no account or login. You can run as many searches as you need before deciding on a name.
No, sole traders and partnerships are not required to register with Companies House, so their trading names will not appear in the register. You should conduct a general web search and check HMRC records separately to identify any unregistered trading names.
Companies House will reject the application if the proposed name is considered the same as an existing registered name under its similarity rules. You will need to amend the name and resubmit. For more information on how company names are assessed, Wikipedia’s article on Companies House provides a helpful overview of how the register operates.
There is no formal name reservation service through Companies House, so names are registered on a first-come, first-served basis. The only way to secure a name is to complete the full registration process.
A sensitive word is a term that implies a connection to a government body, a regulated profession, or a prestigious institution, such as “Royal,” “National,” or “Chartered.” Using these words requires written permission or evidence of eligibility before Companies House will accept the registration.
Yes, a name can be legally registered at Companies House while still infringing on a registered trademark. The UK Intellectual Property Office trademark register is a separate database, and you should check both before proceeding.
Standard online registration through Companies House typically takes 24 hours. The same-day service is available for a higher fee if you need the company incorporated more quickly.
Yes, a third party can object to your company name through the Company Names Tribunal if they believe it is too similar to an existing name they have rights over. The GOV.UK page on the Company Names Tribunal explains the process in full.
No, a limited company can trade under a different name to its registered name, known as a business name or “trading as” name. However, the registered name must still appear on all official documents and your business premises.
No, Companies House will not register a name that is identical or considered the same as an existing registered company name. The register is designed to ensure each company name is unique.
This is a common situation and there is no rule preventing you from registering the company in this case. However, it is worth considering whether operating without a matching domain will affect your brand credibility and whether an alternative domain extension or slight name variation might resolve the issue.
Scottish limited partnerships are also registered with Companies House, so the same search tool covers them. However, they have slightly different naming requirements, and it is worth reviewing the specific guidance if you are forming a Scottish entity.
Companies House sets a maximum of 160 characters for a company name. Names must also end with “Limited,” “Ltd,” “Public Limited Company,” or “PLC” depending on the company type, and these suffixes are not included in the 160-character count.