How to Check If a Business Name Is Already Taken (UK)

You’ve found the perfect name for your business. It’s clever, it’s memorable, the domain is available — you’re already imagining it on the shopfront. Then someone asks: “Have you checked it’s not taken?” and your stomach drops. Knowing how to check if a business name is already taken takes about twenty minutes and can save you from a painful, expensive rebrand six months after launch. Here’s exactly how to do it properly in the UK.

Why This Check Matters So Much

Two businesses can legally coexist with similar names in some circumstances — but “legally possible” and “good idea” are very different things. If another company already trades under your chosen name, you risk:

• Trade mark infringement claims — if they hold a registered trade mark, they can force you to stop using the name.
• Companies House objections — a name “too like” an existing company can be challenged after registration.
• Customer confusion — the last thing a new business needs is to be mistaken for someone else, especially someone with bad reviews.
• A wasted brand investment — every pound you spend on signage, packaging, and marketing is at risk if you have to rebrand.

I always tell founders: fall in love with the name after the checks, not before.

Step 1: Search Companies House

Start with the Companies House register — it’s free and searchable. Look for:

• Exact matches — obviously a problem.
• Similar names — Companies House has rules against names that are “too like” existing ones. “Bright Leaf Ltd” vs “Bright-Leaf Limited” would likely be rejected.
• Dissolved companies — a dissolved company’s name may be available, but check why it dissolved and whether any trade mark rights survive.

Note that Companies House only covers registered company names. A sole trader could be happily trading under your dream name without appearing here — which is why the next steps matter.

Step 2: Check Trade Marks

This is the step most people skip, and it’s arguably the most important. Search the UK Intellectual Property Office trade mark database for your name in relevant business classes. A registered trade mark gives its owner the right to stop you using the name even if no identically-named company exists on Companies House.

Search for the exact name and obvious variations, and look across the classes relevant to your business (a trade mark for clothing doesn’t necessarily block a plumbing business, but don’t rely on fine distinctions without advice). If you find a live trade mark in your sector, pick another name — fighting that battle as a startup is a losing proposition.

Step 3: Search the Web and Social Media

Google the exact name in quotes, plus your sector and location. Check:

• Existing businesses trading under the name as sole traders or partnerships.
• Domain availability — the .co.uk and .com at minimum.
• Social media handles on Instagram, Facebook, TikTok, X, and LinkedIn.
• App store listings if you’re building an app.

An unregistered business with an established local reputation can still cause you grief through “passing off” claims — and practically, you don’t want their one-star reviews attached to your Google results.

Step 4: Consider Registering the Trade Mark Yourself

Once your checks come back clean, seriously consider registering the name as a UK trade mark (£170 for one class at the IPO). It’s the strongest protection available and turns the tables: now you’re the one who can stop copycats. Our guide on protecting your business idea before launching covers trade marks alongside the other IP rights worth knowing about.

What If the Name Is Taken?

Don’t despair — iterate. Try:

• Adding a distinctive word (“Bright Leaf Studio” instead of “Bright Leaf”).
• Using a coined or invented word — these are easier to trade mark and less likely to clash.
• Checking whether the existing user is in a completely different sector and region, and taking advice on the actual risk.

And once you’ve settled on a clear name, sort your registered office address and get the company formed — a good name deserves a proper legal foundation behind it.

When Your Perfect Name Is Taken

It happens to most founders: the name you love is unavailable. Don’t panic — treat it as a creative constraint. Start by understanding why it’s blocked. A dissolved company with no trade mark is very different from a live trade mark held by an active competitor. The former might be usable with care; the latter means walk away, full stop.

Then get creative with alternatives. Coined words (think Google, Kodak) are the gold standard — distinctive, ownable, and easy to trade mark. Descriptive-plus-distinctive combinations work well too: take your generic term and add an unexpected word. Check domain availability in parallel, but don’t let the perfect .com drive the decision — a .co.uk or a slightly modified domain is fine for most UK businesses starting out. What matters is that the name is legally clear, memorable, and doesn’t box you in as you grow.

One more consideration: company name vs trading name. Your registered company name (the Ltd) and your trading/brand name can differ. Some founders register a neutral company name (“Bright Leaf Holdings Ltd”) and trade under the brand. This gives flexibility to rebrand or run multiple brands later. Just remember that trading names still can’t infringe trade marks, and you must display the registered company name on official documents. Get the legal foundation right once, and the brand can evolve freely on top of it.

The Bottom Line

Check Companies House, search the IPO trade mark database, Google the name with your sector, and secure the domains and social handles — in that order, taking about twenty minutes total. If everything’s clear, consider registering the trade mark yourself for £170. It’s a small investment that protects every pound you’ll later spend building the brand.