Is my business name safe? Why Companies House registration does not protect your name in the UK

The short answer is no. A Companies House registration does not give you trade mark rights. It gives you a company registered under that name, subject to company name rules. That is not the same thing as owning the brand in the market. The official Companies House position is explicit on this point, and it has said so for years. If you only check Companies House, you can still walk straight into a trade mark conflict.

The three checks founders wrongly treat as the same thing

In the UK, these systems sit in different legal lanes. Companies House handles company registration. The Intellectual Property Office handles trade marks. A domain registrar handles domain names. Businesses regularly assume that one clears the others. It does not.

Why the distinction matters in the real world

The usual pattern is painfully predictable. A founder checks Companies House, sees the name is available, and assumes that means the name is “safe”. They then spend on logo design, packaging, van graphics, Google Ads, stationery, shopfront signage, labels, marketplace listings, and maybe even a lease. The nasty surprise arrives later, often when they file a trade mark, get a solicitor’s letter, or try to scale into retail.

What UK law actually looks at

For registration, the main legal obstacles usually sit in two places. First, the absolute grounds for refusal under section 3 of the Trade Marks Act 1994. These catch marks that are descriptive, non-distinctive, misleading, or otherwise unsuitable for registration. Secondly, the relative grounds under section 5. These catch conflicts with earlier rights, including earlier registered marks and, in some cases, earlier unregistered rights.

That means a founder can have two separate problems. One, the name may be too weak to register at all. Two, even if it is distinctive enough, it may still be too close to an earlier brand in the same or related field.

Once a mark is registered, section 10 is the main infringement provision. Section 11 then sets out important limits and defences, including honest use in certain circumstances. In plain English, owning a registration can be powerful, but it is not a magic club that wins every argument. For how strong, coined marks appear on the register in practice compared with everyday wording, our trademark wiki has worked examples (for instance Kodak).

Companies House can still matter, just not in the way people think

Companies House does police company names under company law, and the rules have tightened. It can reject names that are the same as, or too like, existing names on the register. It also now has stronger powers to challenge names that are misleading or linked to fraud. On top of that, the Company Names Tribunal can order a company to change its name in cases of opportunistic registration.

But none of that changes the central point. These are company name controls, not a substitute for trade mark clearance. They are useful side routes, not the main route to brand protection.

What the case law teaches a business owner

1. Descriptive names are harder to protect

The old Office Cleaning Services line still matters. If your name is made of descriptive words, small differences may be enough to avoid confusion. A recent Company Names Tribunal decision involving Carpet Factory Ltd made the same point in practical form. The more descriptive the name, the narrower the likely scope of protection. If your chosen name is generic, your problem is not just clearance. It is enforceability.

2. Small businesses can still have rights

Do not assume that only household names can rely on passing off. UK authorities make clear that a smaller business with real goodwill can protect a name, even if the business is not huge. The modern discussion of Lumos Skincare v Sweet Squared is helpful here. Limited goodwill can still be actionable if it is genuine and distinctive.

3. Goodwill must be in the UK

Starbucks (HK) v British Sky Broadcasting is the warning shot. Mere reputation abroad is not enough for a UK passing off claim. If you want to rely on unregistered rights, you need goodwill among UK customers or clients, not just internet noise or overseas fame.

4. Opportunistic company name registration can backfire

Company Names Tribunal decisions such as Capita Support Ltd and Polycoat Ltd show that a claimant with real goodwill can sometimes force a change of name. But they also show an important nuance. Mere ownership of a trade mark is not always enough in that forum. The tribunal still looks carefully at goodwill, similarity and whether the public would likely infer a connection.

What a sensible founder should do before launch

What this means for your decision

The question most founders are really asking is simple: “Can I safely build around this name, yes or no?” That answer is rarely a pure binary, but a credible first-stage assessment is immensely valuable. It tells you whether the risk is theoretical, moderate, or urgent, and whether you should proceed, adjust, or think again before committing further budget.

When to escalate beyond a self-serve report

A self-serve check is usually enough to stop obviously bad decisions. It is not the end of the road for every case. If the report shows a live earlier mark in overlapping classes, heavy class congestion, a letter before action, or a brand you already know has market recognition, that is when a trade mark attorney earns their keep.

Equally, if the report shows a highly descriptive mark, weak distinctiveness, or a name that looks fashionable rather than ownable, the right answer may not be “file anyway”. The right answer may be “rename now while it is still cheap”.

Bottom line. Companies House helps you incorporate. It does not clear your brand. Check before you spend the money, and you avoid the most common mistake founders make.