How should one understand the influence of Europeanization on social partnership? This article examines the impact of the European Employment Strategy (EES) on Greek social partnership and the role of employers and unions in the formulation of labour market policy. It identifies two potential levels of influence: first-level change which leads to an alteration of policy discourse, and second-level change which opens up space for reforms in policy actors' preferences and institutional resources. Empirical findings show a loose and indirect link between the advancement of Greek social partnership and the EES. Policy legacies and institutional inadequacies are decisive. Nonetheless, contrasting the Greek and Italian cases reveals the room for manoeuvre available to unions willing to invest in organizational restructuring and a bigger say in the policy process.