No-poach and wage-fixing agreements – arrangements between companies seeking to prevent or limit the hiring of each other’s employees, or to suppress the wages and/or benefits of their respective current employees are not only currently under the spotlight in the US, but have also been subject to scrutiny by antitrust authorities in the European Union (EU), albeit to a more limited degree. These antitrust infringement decisions have mostly been taken by EU Member State national competition authorities (NCAs), rather than by the European Commission (EC) (the foremost enforcer of EU competition law). The US antitrust regime will be relevant to companies from third countries that have US subsidiaries or that participate in joint ventures or private equity investments in the US, but this alert focuses on the emerging body of EU and Member State law relating to anti-competitive labour practices and highlights the need for those companies with European operations or investments to take note of them. Potential liability for EU antitrust failings may extend to a number of circumstances, including where the parent holds only a minority stake, potentially coupled with nominee directors sitting on subsidiary company boards, and even where a buyout or private equity firm has no involvement in, or awareness of, the alleged wrongdoing. As with labor-related restrictions in the US, the growing use of fines by EU Member States for violations of competition law through no-poach, no-hire, wage-fixing and staff data sharing calls for increased coordination between sales managers, human resource departments, and antitrust legal and compliance officers.