As part of the National Action Plan on Energy Efficiency (NAPE), the German Federal Government and 21 industry associations have founded the Energy Efficiency Networks Initiative. The goal of the initiative is to establish 500 energy efficiency networks by the end of 2020 (with 5-15 companies per network), thereby reducing greenhouse gas emission by 5 million tons. Energy efficiency networks offer companies a structured exchange of experiences with energy efficiency projects. Each network formulates an energy saving goal that companies aspire to reach by the end of the network cooperation. At the end of a network cooperation, an independet monitoring institute verifies if stated measures have been implemented by participating companies. Starting point of the network cooperation is an assessment of efficiency potentials (energy audit) within each participating companies. Over the course of the network cooperation (generally 3-4 years), the participants meet regularly in workshops and on-site consultations. Experience with energy efficiency networks in Germany has shown that participation in a network results in motivational and organizational benefits for companies. The Energy Efficiency Networks Initiative aims at mobilizing companies of all sizes and from several sectors, including trade and commerce.