Companies House Search

What is Companies House Lookup?

Companies House Lookup is a Chrome extension that gives you instant access to the UK's official company register — without ever leaving the page you're on. Powered by the Companies House API, it automatically identifies the business behind any website you visit and surfaces their registered details in a clean, tabbed popup.

Why does this matter?

Every day, thousands of professionals in the UK need to quickly verify a company's registered details — whether they're a recruiter vetting a new client, a salesperson qualifying a prospect, a lawyer doing due diligence, or a finance professional checking a supplier. The current process involves opening a new tab, navigating to the Companies House website, typing in a search query, and sifting through results. It's slow, repetitive, and breaks concentration.

Companies House Lookup eliminates all of that. It reads the URL and page metadata of whatever site you're visiting, intelligently extracts the company name, and queries the official register in real time. The result is a rich, organised summary delivered in under two seconds — right in your browser toolbar.

Smart matching technology