LEEN GmbH is a joint venture between IREES GmbH and Fraunhofer Gesellschaft e.V.
We develop and market the LEEN Management System. With it, we provide a tool for Learning Energy Efficiency Networks all over the world.
REECO has been organising trade fairs, conferences, seminars and workshops since 1998. Our team attend to 4,500 participants from economics, science, media and public authorities.