Make a whistleblower report

We use some essential cookies to make this website work. We’d like to set additional cookies to understand how you use GOV.UK, remember your settings and improve government services. We also use cookies set by other sites to help us deliver content from their services. You have accepted additional cookies. You can change your cookie settings at any time. You have rejected additional cookies. You can change your cookie settings at any time. Tell the Competition and Markets Authority (CMA) about suspected wrongdoing by your current or former employer. Guidance on whistleblowing to the CMA updated. Use this service to tell the CMA about your employer (or ex-employer) possibly breaking competition or consumer law. Before you make your report, read our guide to whistleblowing . It explains: You can make a whistleblower report to the CMA if you suspect wrongdoing relating to an area of the CMA’s work, including competition or consumer protection. If you want to report something else, check the list of other bodies and people you can contact . If you are not making a whistleblowing report, but want to contact the CMA about something else, you can: If you don’t want to use this form, you can call or email us instead. Find out more about reporting this way . Telephone: 020 3738 6556 Email address: whistleblower@cma.gov.uk Contents Is this page useful? Maybe Yes this page is useful No this page is not useful Thank you for your feedback Report a problem with this page Help us improve GOV.UK Do not include personal or financial information like your National Insurance number or credit card details. To help us improve GOV.UK, we’d like to know more about your visit today. Please fill in this survey (opens in a new tab and requires JavaScript ) .