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Registering a company name at Companies House doesn’t protect your brand — at all
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Buying the domain and checking social handles doesn’t either
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Trademarks are a separate system, and someone can own your brand name without your knowledge
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The check takes minutes; finding out late costs thousands
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Run a company name availability check before registration — before you spend anything on branding
Here’s a situation that plays out more often than most founders know.
A small business builds a brand over 18 months. The name sticks. Customers remember it. The founder has put real money into a logo, a website, product photography. Then, one afternoon, they discover that the name — the one they’ve been trading under — is already registered as a trademark by someone else.
Not the domain. Not the company name. The trademark.
And they have to decide whether to rebrand, fight, or pay.
Why the Checks You’ve Already Done Aren’t Enough
Let’s be specific about what doesn’t protect your brand:
Companies House registration — This lets you operate under a name as a legal entity. It gives you no exclusive rights to the brand. Two different companies can have the same name across different sectors. Companies House doesn’t check the trademark register, and the trademark register doesn’t check Companies House.
Buying the domain — Owning yourname.co.uk is useful. It has no bearing on trademark rights. You can own a domain while someone else owns the trademark for the same name — and they’d have the stronger legal position in a dispute.
Googling it — This tells you who’s publicly visible. It doesn’t tell you who has a pending trademark application, who’s been operating under the name in another region, or who filed last week.
Checking social handles — Same problem. Availability on Instagram means nothing legally.
The only check that tells you whether a name is legally yours to own is a trademark search. Everything else is a different question.
What “Available” Actually Means
This is where a lot of founders get a false sense of security.
They search their exact name on the UK Intellectual Property Office database. Nothing comes up. They assume they’re clear.
But trademark law doesn’t just look at exact matches. The IPO will reject an application — or uphold an opposition — if a proposed mark is “confusingly similar” to an existing one. That covers:
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Names that sound the same when spoken aloud
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Names that look similar on a page
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Names that convey the same idea, even in different words
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Names in the same or adjacent industry categories
“Clarico” and “Clariko” are the same problem. “SwiftPay” and “FastPay” in the same sector might be too.
A search that only catches exact matches misses the conflicts that actually create legal risk. And pending applications count as well — someone who filed three months ago isn’t registered yet, but they have priority over a filing you make today.
The Timing Problem
The best time to search is before you commit to a name. Before the domain purchase. Before the design brief. Before you tell anyone what you’re calling it.
At that stage, you have real flexibility. If your first choice has a conflict, you pick something else. You’ve lost nothing.
The further along you are, the more a conflict costs:
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Pre-launch: Change the name. Inconvenient, but cheap.
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Post-launch, pre-traction: Rebrand. Annoying and costs some money.
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Post-traction: Rebrand everything — website, SEO equity, packaging, marketing materials, customer communications. Potentially very expensive.
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Post-traction with a legal dispute: Add solicitor fees, potential damages, and business disruption on top of the rebrand cost.
The search is the same effort at every stage. The consequences of a bad result are not.
The Actionable Checklist
If you’re naming a business or already trading under one you’ve never formally checked:
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Search the UK IPO trademark register — and check pending applications, not just registered marks
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Look for phonetically similar names in your industry categories
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Run a company name availability check before registration that covers trademark risk, not just company registry
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If the name looks clear, file a trademark application as early as possible — the process takes 4–6 months for standard applications
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Keep dated evidence of your brand use from the start: first invoice, first website, first customer — this matters if you ever need to prove prior use
The IPO filing fee starts at £170 for one class. The cost of finding a conflict after launch is multiples of that, minimum.
The Thing Nobody Tells You About Brand Names
Your brand name compounds in value. Every piece of content you publish, every customer who remembers it, every referral made — these are all building equity in a name. If that name isn’t protected, you’re building something that can be taken from you.
This isn’t a remote risk. It’s a documented pattern. Businesses that build visible brands without registering trademarks are the specific target of people who file trademarks opportunistically. The more successful your brand becomes, the more attractive it is as a target.
You protect the name by owning it. You own it by filing.
Everything else is hoping for the best.
Demarka is an AI-powered trademark search tool. It helps founders quickly screen whether a brand name is available before they invest in it. Start there — then talk to a trademark attorney to confirm and file.
