DFGE – Institute for Energy, Ecology and Economy GmbH

DFGE – Institute for Energy, Ecology and Economy GmbH is a German sustainability consultancy and technology provider founded in 1999 by Dr.-Ing. Thomas Fleissner as a spin-off from the Technical University of Munich. DFGE provides carbon footprinting, life-cycle assessment, climate strategy, ESG management and sustainability reporting services, supported by its Sustainability Intelligence software. DFGE became the of the CERTANIA Group in 2023.