How to remove your details from Cognism

A UK guide for professionals. Steps checked October 2026.

Cognism is a sales database widely used by UK and European sales teams, with a particular focus on direct-dial and mobile numbers. If your details are in it, here is how to ask Cognism to remove them.

What is Cognism?

Cognism Limited is a company registered in England and Wales, based in London. Its privacy policy says it obtains business contact data from third-party data vendors, from its customers under data-sharing agreements, and from correspondence with the people concerned.

How to remove your details from Cognism

  1. Use the request form in Cognism's Privacy Centre, which Cognism recommends and links from its privacy policy. You can also email its privacy team at the address given in the policy.
  2. Say that you object to the use of your personal data for direct marketing and ask for it to be erased.
  3. Give only the details Cognism needs to find your record, such as your name, employer and work email address.
  4. Keep a note of the date. Under UK law, a company must normally respond within one calendar month.

What happens next

Cognism's privacy policy says it aims to remove data five years after collection, so details can otherwise stay in its database for a long time. Ask Cognism to confirm what it has done and to make sure your details are not added again.

Your rights under UK law

Your name, work email address and direct phone number are personal data. You have an absolute right to object to their use for direct marketing, and in many cases a right to have them erased. Because Cognism is a UK company, UK data protection law applies directly to how it handles your details.

Common questions about Cognism

How do I remove my number or data from Cognism?

Use the request form in Cognism's Privacy Centre, linked from its privacy policy, or email its privacy team. Say that you object to the use of your personal data for direct marketing and ask for it to be erased, giving only the details needed to find your record.

Where does Cognism get my details?

Cognism's privacy policy says it obtains business contact data from third-party data vendors, from its customers under data-sharing agreements, and from correspondence with the people concerned.

How long will Cognism keep my details if I do nothing?

Its privacy policy says it aims to remove data five years after collection, so without a request your details can stay in its database for a long time.

Does UK law apply to Cognism?

Yes. Cognism Limited is registered in England and Wales and based in London, so UK data protection law applies directly. It must normally respond to your request within one calendar month.

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ColdStop Pro is not affiliated with Cognism. Cognism may change its process; check its privacy policy for the latest details. This guide is general information, not legal advice.