How to Choose a Company Name That Companies House Will Accept

Choosing a company name that Companies House will accept requires following specific rules on sensitive words, similarity to existing names and avoiding trademark conflicts. The process involves checking availability on the Companies House database, the IPO trademark register and considering practical branding factors.

UK early-stage founders and e-commerce sellers must complete these checks before incorporation to avoid rejection or future legal issues. This guide sets out the practical steps and reasoning to select and register a compliant name for your limited company.

Why Your Company Name Matters at the Outset

The name you choose becomes the legal identity of your limited company from the moment of incorporation. Companies House uses it for all official correspondence, filings and public records. A poor choice can lead to rejection during registration or disputes later when you begin trading.

Selecting a suitable name early saves time and avoids the need to file a name change later, which requires additional forms and potential fees that change over time. Checking rules before you start also reduces the risk of receiving a notice from a trademark owner or another business.

Understanding the Basic Rules for Company Names

Companies House requires every limited company name to end with Limited or Ltd. The name must use English or Welsh characters and cannot be longer than a set character limit that you should confirm on the current GOV.UK guidance. It cannot suggest a connection with government or local authorities unless you obtain prior approval.

Names must not be offensive or use words that imply illegal activity. You must also avoid any indication that the company is a different legal form, such as using LLP when you are incorporating as a private limited company. These rules exist to protect the public and maintain clear records at Companies House.

Rules on Sensitive Words and Expressions

Certain words are considered sensitive and require prior approval from the relevant authority before Companies House will accept them. Examples include Bank, Building Society, Insurance, Royal, Olympic, and words suggesting charitable status or regulated professions such as Solicitor or Doctor.

Practical steps for sensitive words:

Search the full current list of sensitive words on GOV.UK before you settle on a name.
If your chosen name contains a sensitive word, prepare evidence showing why you should be allowed to use it and submit it to the appropriate body.
Allow extra time in your incorporation schedule because approval can take several weeks.
Consider rewording the name to avoid the sensitive term entirely if the approval route looks uncertain.

Using a sensitive word without approval almost always results in rejection of the incorporation application.

Performing Similarity Checks with Existing Companies

Companies House will reject a name if it is too similar to an existing company already on the register. Similarity is judged on spelling, sound and meaning. For example, The Coffee Bean Limited and Coffee Beans Ltd would likely be considered too close.

Step-by-step similarity search process:

Go to the Companies House WebCheck service or advanced search.
Enter your proposed name without the Limited suffix.
Review every result that appears, paying attention to both active and dissolved companies.
Check for phonetic matches such as Koffe instead of Coffee or intentional misspellings.
If a close match exists, decide whether the risk of objection or rejection is acceptable or choose a more distinctive name.

Even if Companies House accepts the name, an existing business can still challenge it later if they believe it creates confusion. Aim for names that are clearly different in both spelling and meaning.

Checking for Trademark Conflicts

Registering a company name with Companies House does not grant trademark rights. You must separately check whether the name or a key part of it is already registered as a trademark for similar goods or services.

Trademark search steps:

Visit the Intellectual Property Office (IPO) trademark database.
Search both the name exactly and the main distinctive words within it.
Filter results by relevant classes that match your planned trading activities, such as class 35 for retail or class 9 for software.
Review live registrations and pending applications.
If a conflicting trademark exists, consider changing your name or seeking legal advice on coexistence or opposition.

Using a name that infringes an existing trademark can lead to a cease-and-desist letter or court action even if Companies House has already incorporated your company. Early checking avoids expensive rebranding later.

Complete Availability Search Process for New UK Limited Companies

Follow this combined process before submitting your incorporation documents to Companies House.

Brainstorm several name options that reflect your e-commerce or startup activity without using sensitive words.
Run each option through the Companies House name availability search, noting any close matches.
Search the IPO trademark register for the same options, focusing on your sector.
Check common domain availability and social media handles to ensure you can secure a consistent online identity.
Decide on your preferred name and two backups in case the first is rejected.
Prepare your incorporation documents using the chosen name exactly as it passed all checks.
Submit to Companies House, ideally through an authorised platform or directly if you have an account.

Keep records of all searches you performed. If you receive a query from Companies House after submission, you can refer to the checks you carried out. Re-check availability immediately before filing because another founder could register a similar name in the intervening period.

Final Considerations Before Incorporation

Once the name passes all checks, confirm that it works for your long-term plans. Consider whether customers will remember it, spell it correctly and associate it with your products. Avoid names that are overly generic because they can be harder to protect and may face more similarity challenges.

After successful incorporation, monitor the Companies House register and trademark journal periodically for any conflicting applications. Register your own trademark when resources allow to strengthen your legal position.

Founders based in West Yorkshire can access practical support at Loomworks in Liversedge, which offers selected early-stage teams free desks, a registered address and mentoring without taking fees or equity.

Frequently asked questions

Can I use my own name in my limited company name?

You can usually include your surname or full name in a UK limited company name. However, you must still complete all the standard checks for similarity, sensitive words and trademarks. Adding a personal name does not bypass any Companies House rules and may create additional trademark considerations if you later want to sell the business.

What happens if Companies House rejects my company name?

Companies House will explain the reason for rejection, such as similarity to an existing name or use of an unapproved sensitive word. You can then submit a new application with a different name. There is no limit on the number of attempts, but each submission may involve further checks on GOV.UK for current requirements.

Do I need to check trademarks before incorporating?

Yes. While Companies House does not check trademarks during incorporation, using a name that conflicts with a registered trademark can expose you to legal action. Searching the IPO database before you incorporate is a practical step that helps avoid rebranding costs and potential disputes.

Can two companies have almost identical names?

Companies House generally prevents names that are too similar, but small differences such as a single letter or a geographic word may sometimes be accepted. Even if accepted, the other company could still object later. Choosing a clearly distinct name reduces risk and avoids potential correspondence or legal challenges.

Is a company name the same as a trademark?

No. A company name registered at Companies House only identifies your legal entity. A trademark protects the brand name or logo for specific goods and services. You can have a company name that is different from your trading name or trademark. Registering a trademark is a separate process through the Intellectual Property Office.