References: Utility and waste management

ABB is a globally active company for energy and automation technology.
Abfallwirtschaft Lahn-Dill is a competent partner for all issues concerning waste disposal in the Lahn-Dill-district.
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Berliner Wasserbetriebe is the biggest municipal water distribution company within Germany.
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Brüning is an international supplier and disposer, dealing mainly in energy yielding loose raw materials.
ENERTRAG is a European energy supplier, specialized in generating electricity from wind energy.
Gassco is an operator for safe and efficient gas transport from the Norwegian continental shelf to other European countries.
Helen is an electricity company supplying Helsinki with power as well as district heating and cooling.
Lahti Energia is a subsidiary of the City of Lahti and provides CHP and district heating.
Mineralölhandel Hans Schmidt is a specialist for recycling and disposal of waste oils and wastages.
ONTRAS Gastransport GmbH is a national gas transmission system operator in the European gas transport system.
The Powerlines Group is an international corporate group operating in the RAIL, ENERGY and PRODUCTS business segments.
Schandl is an internationally operating company in the field of gas and water supply.
Scholz is a globally acting steel and metal recycling company.
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SIEMENS is a worldwide leader in the field of electronics and electrical engineering. The main business areas are energy, healthcare, industry and infrastructure & cities.
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SEBES is a communal administration unit for the improvement of drinking water supply.
Uniper Technologies is part of Uniper SE, one of the world's largest electric utility service providers.
Vattenfall is one of the largest producers and suppliers of electricity and heat in Europe.
Veolia Umweltservice is one of the leading waste disposal companies in Germany.