социальный организатор(e.g. see How to Finance Collective Action for the Global Commons: Social Entrepreneurs and Eco-Goods Schemes by Yoshifumi Ueda, Andreas Wegener and Gert T. Svendsen dur.ac.ukavk)
технический организатор(At his trial in Jerusalem Adolf Eichmann – who was the technical organizer of the Wannsee Conference and who attended its meetings – when asked by the President of the Tribunal what the general sense of the discussion was, answered: "The discussion covered killing, elimination, and annihilation" Alexander Demidov)