EnviTec Biogas is a German technology and services company focused on biogas and biomethane. It designs, builds, and modernizes anaerobic digestion facilities that process agricultural residues, manure, energy crops, and other organic feedstocks. The company also supplies gas upgrading systems—marketed under the EnviThan brand—using membrane separation to refine raw biogas into biomethane suitable for grid injection, transport fuel, and combined heat and power applications. Manufacturing for key plant components takes place at its site in Saerbeck, Germany.
Beyond engineering, procurement, and construction (EPC), EnviTec provides project development, operations and maintenance, and plant optimization services, including retrofits of existing assets. The company operates in multiple European markets and supports projects ranging from new greenfield installations to upgrades of legacy biogas plants. Its solutions aim to integrate renewable biomethane into existing gas infrastructure and support decarbonization across energy, transport, and industrial use cases.