EXPLAINER

What is a Data Broker? Everything UK Residents Need to Know

Updated July 2026 · 8 min read · By Silent Erase | ICO Registered C1971457

Most people have never heard of data brokers — yet these companies hold and sell detailed personal profiles on hundreds of millions of people worldwide, including you. Understanding what data brokers are and how they operate is the first step to protecting your privacy.

Shocking fact:
There are over 500 data broker websites actively selling UK personal information right now. The average UK resident appears on dozens of them without knowing.

What is a Data Broker?

A data broker is a company that collects personal information about individuals from a wide variety of sources and sells that information to third parties. Data brokers operate legally and their business model is built entirely on buying, packaging and selling your personal data.

Unlike social media companies that collect your data as a byproduct of providing a service, data brokers have no direct relationship with you at all. You have never agreed to share your data with them — they simply collect it from public sources without your knowledge.

How Do Data Brokers Collect Your Data?

Data brokers use a variety of methods to collect personal information:

Public Records
Electoral rolls, Companies House filings, court records, land registry data and other government records are all publicly available and scraped automatically by data brokers.
Phone Directories
BT phone book and other directory services provide names, addresses and phone numbers that data brokers collect and republish.
Social Media
Public social media profiles, posts and check-ins provide data brokers with personal details, interests, relationships and location information.
Website Tracking
Cookies, pixels and tracking scripts on websites collect browsing behaviour that data brokers purchase and add to your profile.
Loyalty Programmes
Supermarket loyalty cards, retail rewards programmes and other schemes collect purchase history that is often sold to data brokers.
Other Data Brokers
Data brokers buy and sell data between themselves, creating ever more detailed profiles by combining information from multiple sources.

Who Buys Data Broker Information?

Data brokers sell to a wide range of customers:

• Marketers and advertisers who want to target specific demographics
- Employers conducting background checks
- Landlords verifying potential tenants
- Insurance companies assessing risk
- Private investigators
- Journalists researching stories
- And unfortunately — fraudsters, scammers and cold callers

The fraud connection:
Fraudsters purchase data broker lists to identify and target potential victims. When a scammer calls and knows your name and address it is because they bought that information from a data broker for just a few pounds.

What Information Do Data Brokers Hold About You?

A typical data broker profile may include your full name and any aliases, current and previous addresses going back many years, phone numbers including mobile and landline, email addresses, date of birth, family members names and relationships, estimated income and financial information, property ownership details, vehicle information, social media profiles and interests, purchasing behaviour and brand preferences.

Is This Legal?

In the UK data brokers must comply with UK GDPR. They are legally required to have a lawful basis for processing your data — typically legitimate interests or legal obligation — and must comply with erasure requests within 30 days.

However many data brokers are based in the US and are not directly subject to UK GDPR enforcement, making removal more challenging though still possible.

How to Remove Your Data from Data Brokers

Under UK GDPR Article 17 you have the Right to Erasure. You can send a formal request to any data broker asking them to delete your information. They must comply within 30 days or face action from the ICO.

The challenge is that there are over 500 data broker websites and each has its own removal process. Doing this manually takes 40-60 hours per year. Silent Erase automates the entire process — sending removal requests to 500+ sites and monitoring continuously for new listings.

Find Out What Data Brokers Know About You

Run a free scan and see exactly what personal information is publicly available about you right now

Start Free Scan — silenterase.com