The literature on new modes of governance suffers from a gap between the normative and the positive approaches to legitimacy. This article addresses this gap by studying the patterns of national stakeholders’ support for the Open Method of Coordination (OMC). The results of our survey demonstrate that the OMC receives greater support than previously assumed and that the support of national stakeholders is largely associated with their involvement in national procedures. These findings corroborate the assumptions of normative theories of participatory democracy about the importance of involvement. Furthermore, the study’s findings underline the pivotal role that national stakeholders play regarding matters of legitimacy in the EU’s multi-level system of governance.