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B2B leads in the UK. Start from the register.
International contact databases are built largely from websites and profiles, and many small and mid-size companies in the UK barely show up in them. The official register has every company. Here is how to go from the register to a list you can work.
What Atlas holds for The UK
Source: the Atlas database, updated automatically.
1. The official sources
- Companies House: every limited company and LLP, with company number, registered office, SIC 2007 code, officers, filed accounts and status. Free, with an open API and monthly bulk files under the Open Government Licence.
- People with Significant Control (PSC) register: the owners with more than 25 % of shares or votes. In an owner-led company, the PSC is often the person who decides.
- Filed accounts: the accounts category (micro, small, medium, large) is a clean size filter.
2. Define the segment
Use three coordinates the register can answer: the industry code, the region and the size. Add a reason to get in touch now, such as a newly registered company, a new director or a won public tender.
3. Remove closed companies
The Companies House monthly file contains only companies currently on the register. A copy loaded once and never refreshed ages silently, so reload it or check status before contacting. Read more in our register audit.
4. Find the contact
The company's own website gives the contact page, the management and open jobs. Check that the website really belongs to the company, with the registration number or a distinguishing name on the page. Parked domains and pages of another company with a similar name are a common source of wrong data.
5. The rules for outreach
Under PECR, email marketing to corporate subscribers (limited companies, LLPs, public bodies) does not need prior consent, but you must identify yourself and offer an easy opt-out. Sole traders and ordinary partnerships are treated as individuals and need consent or the soft opt-in. UK GDPR applies to named contacts.
This is a general overview, not legal advice.
How Atlas helps
Atlas searches companies by industry, region and registration date, and looks for the website, phone, email and decision-maker in public sources. The source is shown next to every piece of data, and if nothing is found the field stays empty. Coverage varies a lot by country, see the measured coverage page. Price: 600 euros for two months plus VAT, no credits.