About
Founded in 2012, Botres Global GmbH is a private headquartered in Hart bei Graz, Austria with approximately 50-200 employees specializing in Biogas.
Botres Global GmbH is an industrial biogas company specializing in the design, construction, and operation of cutting-edge biogas facilities. The company converts a wide range of organic waste streams—including food waste, animal manure, slaughterhouse residues, and agricultural materials—into renewable energy (electricity, biomethane, Bio-CNG, Bio-LNG) and high-quality digestate for fertilizer production. Founded in 2012 by Stefan Kromus and Markus Grasmug, both with over 20 years of biogas sector experience, the company has evolved from a 2-person startup to a multinational operation with headquarters in Austria and branches in Spain, Italy, and Poland. Botres operates under a mixed business model: EPC (engineering, procurement, construction) services for clients and BOO (Build-Own-Operate) facilities for its own portfolio. Completed projects process over 1 million tonnes of organic waste annually and generate more than 350 GWh of renewable electricity per year. In March 2024, Hartree Partners Limited acquired a 50% stake in Botres Holding GmbH to develop a European biomethane production business focused on Renewable Energy Directive-compliant feedstocks.
Headquarters
Hart bei Graz, Austria
Founded
2012
Employees
50-200
Company Type
Private