Gassner GmbH

Founded in 1928, Gassner GmbH is a private company headquartered in Kempten, Germany with approximately 501-1000 employees specializing in Solar, Biomass, Hydrogen.

Gassner GmbH is a building services engineering company established in 1928 in Kempten, Germany. Since 2007, it operates as part of the Alois-Müller-Gruppe. The company specializes in comprehensive technical building equipment (TGA) including heating, ventilation, cooling, sanitary systems, electrical engineering, control and automation technology, and plant engineering. Core competencies include design and fabrication of mobile energy centers in container configuration, heating and cooling systems, biomass heating, heat pumps, combined heat and power plants, compressed air systems, and water treatment. The company operates the Green Factory, a nearly energy-autonomous production facility using solar photovoltaic (1.1 MW), combined heat and power, and pellet heating systems, achieving CO2-neutral operations. It serves industrial, commercial, and residential clients across Germany.