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The short answer is yes, in many cases. Two businesses can legally operate under the same name in the UK. But the rules depend on what type of name registration you are talking about, what industries the businesses are in, and whether anyone holds a trademark.
Two businesses can share the same name in the UK more often than most people expect. There is no single “business name register” that prevents duplication across all types of business entity. The legal position depends on three separate systems, each with its own rules: Companies House registration, trademark registration, and the common law of passing off.
Understanding how these three systems interact is essential before committing to a business name, particularly if you discover someone else is already using it.
Companies House will not allow you to incorporate a limited company with a name that is identical (or effectively identical) to an existing registered company. “Effectively identical” means the same name once you strip out generic indicators such as “Limited”, “Ltd”, “PLC”, and “The”.
But this is a very narrow check. “Acme Solutions Ltd” and “Acme Solution Ltd” (singular vs plural) could both exist on the register. “Apex Digital Ltd” and “Apex Digital Services Ltd” would also both be accepted.
More importantly, Companies House registration gives you no exclusive trading rights. It prevents the identical company name from being registered again, nothing more. Sole traders and partnerships do not even register at Companies House, so there is nothing stopping a sole trader from trading under a name that matches an existing limited company.
The UK trademark system allows two businesses to register and use the same name, provided they operate in different Nice classes of goods or services. Trademark rights are not universal; they are tied to the specific goods and services listed in the registration.
The Nice Classification system divides all goods and services into 45 classes. A clothing brand registered in Class 25 (clothing, footwear, headgear) has no automatic right to prevent a software company from using the same name in Class 9 (computer software) or Class 42 (software development services).
This is not a theoretical point. Some of the world's best-known brands share names:
These coexist because the goods are sufficiently different that no reasonable consumer would confuse one for the other.
Sharing a name becomes legally risky when there is a likelihood of confusion among consumers. The main risk factors are:
Even if neither business has a registered trademark, the first to build goodwill under a particular name may have rights through the tort of passing off. To succeed in a passing off claim, you must prove three elements (the “classic trinity” from the Jif Lemon case):
Passing off claims are expensive to bring. Court action typically costs £10,000 or more, and the outcome is uncertain because you must prove all three elements with evidence. This is why trademark registration is almost always the better option: it gives you a statutory right that does not require proving goodwill in court.
A common misconception is that registering a company name at Companies House gives you exclusive rights to that name. It does not. Companies House and the UK IPO are entirely separate systems with different purposes.
| Feature | Companies House | UK Trademark (IPO) |
|---|---|---|
| What it registers | The company's legal name | A brand name, logo, or slogan |
| Exclusive rights | Prevents identical company name only | Exclusive use for specified goods/services across the UK |
| Prevents trading names | No | Yes, for registered classes |
| Cost | £12 (online incorporation) | £205 (one class, online) |
| Enforcement | Company Names Tribunal (limited) | Courts, UK IPO opposition/cancellation |
For a fuller comparison, see our guide to company names vs trademarks.
Before settling on a business name, run three searches:
If you find a conflict in your industry, choosing a different name is almost always cheaper and faster than fighting for the right to use it. A new name costs nothing. Defending a passing off claim or trademark opposition costs thousands.
If you discover another business using your name, your options depend on your position:
No. Companies House will reject an incorporation if the proposed name is identical to an existing registered company. However, the rules are narrow: "same" means effectively the same after stripping out generic terms like "Ltd" and "The". Small differences in wording, spelling, or punctuation are often enough for Companies House to allow both names. This does not prevent trademark conflicts, though.
Yes, if they operate in different industries or different Nice classes. Trademark rights are specific to the goods and services covered by the registration. Two unrelated businesses can trade under the same name without issue, provided there is no likelihood of consumer confusion.
Passing off is a common law right that protects unregistered trading names and brand goodwill. To succeed in a passing off claim, you must prove three things: that you have goodwill attached to the name, that the other party’s use amounts to a misrepresentation, and that you have suffered (or are likely to suffer) damage as a result. It is significantly harder and more expensive to enforce than a registered trademark.
Yes. A Companies House registration only prevents another company from registering the identical name. It does not give you trademark rights, does not prevent others from trading under a similar name, and does not stop someone else from registering your name as a trademark. A trademark registration gives you exclusive rights to use the name for your specified goods and services across the entire UK.
First, check whether either of you holds a registered trademark for the name. If you do, you can take action for infringement under the Trade Marks Act 1994. If neither of you has a registration, you would need to rely on passing off, which requires proving goodwill, misrepresentation, and damage. In either case, start by gathering evidence and consider seeking legal advice before sending a cease and desist letter.