Naming your limited company: Ultimate guide

emily gordon brown
Emily Gordon BrownLegal Assessment Specialist @ Lawhive
Updated on 28th January 2025

Picking a name for your limited company is one of the most exciting parts of starting a business. It’s your chance to shape your brand identity and make a great first impression with clients, partners, and customers. But choosing a name isn’t just about being creative or catchy - there are rules and practical considerations to keep in mind. In this guide, we'll walk you through everything you need to know, from legal requirements to tips on managing your company name.

Rules and restrictions on company names in the UK

When naming your limited company, there are specific legal guidelines set by Companies House. These rules help ensure clarity and prevent disputes. Let’s break them down:

1. Uniqueness and similarity

Your company name needs to stand out from businesses already registered with Companies House. If it’s too similar to an existing name, it may be rejected. For example, 'ABC Solutions Ltd' might be considered too close to 'ABC Solution Ltd'.

💡Editor’s insight: You can use the name availability checker on the Companies House website to check if the names you on your shortlist are available.

2. Avoiding prohibited or offensive words

You can’t use words that could cause offence, mislead the public, or relate to illegal activities. Offensive language, hate speech, or anything inappropriate will result in rejection.

3. Sensitive words and expressions

Certain terms require special approval from government authorities or regulators. Examples include:

  • 'British' or 'National' may require evidence of a national presence.

  • 'Royal' requires permission from the Cabinet Office.

  • 'Accredited' or 'Institute' may need professional body approval.

💡Editor’s insight:To use the word 'Accredited' in your limited company's name, you would need permission from the Department for Business and Trade.

4. Use of certain characters and punctuation

While some punctuation (like hyphens or apostrophes) is permitted, symbols such as @, £, and ? are not allowed. Ensure the name is clear, professional, and easy to read.

5. Trademark infringement

Even if Companies House accepts a name, it does not guarantee that it won’t infringe on an existing trademark. Always perform a trademark search through the UK Intellectual Property Office to avoid legal complications.

What does the Companies Act 2006 say?

The Companies Act 2006 governs the naming and registration of companies in the UK, specifying requirements and restrictions. Key provisions include:

  1. Section 53, Prohibited Names: Names cannot be offensive or contrary to public policy. This ensures that business names reflect appropriate standards of decency.

  2. Section 54, Sensitive Words and Expressions: Companies using words like 'Royal', 'Chartered', or 'University' must provide supporting documentation and seek consent from relevant authorities.

  3. Section 55, Similar Names: The Act prevents the use of names that are identical or too similar to existing ones to avoid public confusion.

  4. Section 66, Same as an Existing Name: A company name is considered the same if only punctuation, spacing, or symbols differentiate it from another. For example, 'Tech4U Ltd' would be the same as 'Tech4-U Ltd'.

What to consider when picking a limited company name

Choosing a name is about more than just compliance. Here are some key factors to weigh:

  1. Memorability: Pick a name that’s easy to remember and pronounce. A simple, clear name will make it easier for customers to recall your business.

  2. Relevance: The name should reflect your business’s core purpose or services. A name that aligns with your products or values helps create a stronger brand identity.

  3. Domain name availability: Before finalising your company name, check if the matching website domain is also available. In today’s digital world, a matching web presence is vital.

  4. Trademark conflicts: Ensure your chosen name is not trademarked. This protects you from potential legal disputes over intellectual property. You can search the UK’s Intellectual Property Office database to confirm availability.

Examples of private limited company names

To help inspire your naming journey, here are some UK-focused examples of private limited company names across different industries. These examples reflect the unique blend of creativity, professionalism, and practicality often seen in British business names:

  • Tech and software: Oxbridge Innovations Ltd, BlueFlag Solutions Limited

  • Retail and e-commerce: The Cotswold Collective Ltd, Regent Street Styles Ltd

  • Financial services: Thames Accounting Ltd, Union Wealth Partners Limited

Should you include 'Limited' or 'Ltd' in the name?

In the UK, it is mandatory for most private limited companies to include ‘Limited’ or ‘Ltd’ at the end of their name. However, the short form "Ltd" is more commonly used in branding and promotional materials, as it is concise and easier to read.

Exemptions

Certain organisations, such as charities or community interest companies (CICs), may apply for an exemption from using ‘Limited’ or ‘Ltd’ in their names. This is subject to specific conditions.

Where should you display your name?

Once registered, you must display your company name prominently in the following places:

  1. Registered office: Your registered office must display a prominent sign with your full company name. (If you’re a home-based business from home, you do not need to display a sign.)

  2. Business letters and stationery: All official documents must include your company name, registration number, and registered office address. Include these details on invoices, letters, and emails.

  3. Website and online presence: Your website must show your company name and registration number in a visible location. Most companies include these details in the footer or contact section.

How do you change a limited company name?

If your business evolves and you need to rebrand, changing your company name is straightforward:

  1. Board resolution: If your company has directors or shareholders, you need to pass a formal resolution to approve the name change.

  2. Permission in your articles of association: Permission may be given in your businesses’ articles of association.

  3. Notify Companies House: Submit the relevant form to Companies House. You can use Form NM01 if the change is approved by a resolution and Form NM04 for company name changes by special articles.

  4. Receive a new certificate of incorporation: Companies House will issue a new certificate of incorporation with the updated name. The change becomes official when you receive this document. You won’t need to update the memorandum of association

FAQs

Can you reserve a company name?

No, Companies House does not offer a name reservation service. However, registering a dormant company under the desired name can prevent others from using it.

Final thoughts

Choosing and managing a company name is a critical aspect of running a business in the UK. By understanding the legal requirements and practical considerations, you’ll have the knowledge to create a unique, memorable, and compliant name. Careful planning will help position your business for success. This advice applies to registering a name for the first time and during rebranding. 

Looking for legal support? Get in touch today to see how one of our small business lawyers can help.

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