Contact us

Report a practice

You wish to report an anticompetitive practice:
- An anticompetitive agreement between companies: an agreement between two or more companies to distort competition
- A company that abuses its market power to harm other companies.

Investigation and Procedure

If you have a question about your file, observations to communicate on a merger case ... Our staff is here to help you.

Press and Website

You want to get in touch with our press department or to report a technical issue?


If you wish to see our job offers, submit an application, access our internship offers, visit the page "Join us".


You are part of an agreement with your competitors and want to get out of this situation, contact informally and anonymously our leniency advisor at 01 55 04 00 78 or see the leniency page for more information.

General information


Autorité de la concurrence
11 rue de l'Échelle
75001 Paris


(+)33 1 55 04 00 00