In the last five years, the number of international students has increased significantly in Hungary, motivating the creation of a clear promotional strategy and involvement of other agents, such as foreign missions. The role of the national coordinating body, namely Tempus Public Foundation (National Agency, TPF), is inevitable in building a diplomat network with the contribution of foreign missions that could result in knowledge diplomacy. TPF is in charge of the management of most international mobility programs and grants in Hungary; it also manages the Study in Hungary initiative supporting the promotion of Hungarian HE abroad. TPF has started to build. The paper outlines the main trends and changes in the internationalization of Hungarian Higher Education, with the special focus on the role of cooperation of the national agency and foreign missions in supporting HEIs to boost their internationalizing activities.