Societas Europaea

The number of registered societates Europaeae since 2004
Clockwise from top left: Christian Dior SE, LVMH Moët Hennessy Louis Vuitton SE (Moët & Chandon Champagne), Airbus SE (A380 aircraft) and Porsche SE (Porsche headquarters) are among the best-known societates registered.

A societas Europaea (Classical Latin: [sɔˈkɪ.ɛtaːs eu̯roːˈpae̯.a], Ecclesiastical Latin: [soˈtʃi.etas eu̯roˈpe.a]; "European society" or "company"; plural: societates Europaeae; abbr. SE) is a public company registered in accordance with the corporate law of the European Union (EU), introduced in 2004 with the Council Regulation on the Statute for a European Company. Such a company may more easily transfer to or merge with companies in other member states.

As of April 2018, more than 3,000 registrations had been reported. Several of the Euro Stoxx 50 stock market index of leading eurozone companies have been registered as SE: Airbus, Allianz, BASF, E.ON, Fresenius, LVMH Moët Hennessy Louis Vuitton (and its subsidiary Dior), SAP, Schneider Electric, TotalEnergies, Unibail-Rodamco-Westfield and Vonovia.

National law continues to supplement the basic rules in the Regulation on formation and mergers. The European Company Regulation is complemented by an Employee Involvement Directive which manages the rules for participation by employees on the company's board of directors. There is also a statute allowing European Cooperative Societies.