Consultant engineers and designers (in the energy sector)
Consultancy (in the energy sector)
Turnkey plants for special gases (gas from purification plants, pit gas, landfill gas)
Technical management (in the energy sector)
Project development (in the energy sector)
Others in the segment fuel use
Gas compressors (gas feed-in)
Misc. in the segment biogas
Commercial management (in the energy sector)
Certification (in the energy sector)
Gas trade
Servicing (in the energy sector)
Maintenance (in the energy sector)
Others in the segment trade in energy materials
Emissions trading
