Helga Blömer-Frerker

Stadtwerke Köln GmbH engages in the supply and distribution of electricity, natural gas, water, and district heating. It also provides river port, transportation, and public transport systems services. The company was founded in 1960 and is headquartered in Cologne, Germany.

LSG Lufthansa Service Holding AG provides in-flight catering and logistic services. It offers catering services; onboard retail services; equipment, including meal-service products, commodities, comfort items, and galley inserts; lounge management services, including cleaning, provisioning, maintenance, reception, and more; logistics and supply-chain management services; and innovation and consulting services in the areas of menu design, food and service presentation, sales, ancillary retail, product design, and more. The company serves airlines, train operators and retailers. LSG Lufthansa Service Holding was founded in 1966 and is headquartered in Frankfurt am Main, Germany.

RheinEnergie AG engages in the production, trading, network operation, as well as distribution of energy and water. Its products include electricity, natural gas, water, district and local heating, as well as steam. The firm also provides energy-related services. The company was founded in 1863 and is headquartered in Cologne, Germany.

SWK Stadtwerke Krefeld AG operates as a holding company, which engages in the distribution and supply of electricity, water, gas, and heat. The firm also provides waste disposal and transportation services. It operates through the following segments: Energy, Water, Waste Management, Transportation, and Services. The Energy segment comprises electricity, gas, and heat. The Water segment deals with water and sanitation. The Waste Management segment specializes in waste collection. The Transportation segment offers public transport with buses and trams. The Services segment consists of management, control, and infrastructure. The company was founded in 1990 and is headquartered in Krefeld, Germany.

moderne stadt Gesellschaft zur Förderung des Städtebaues engages in the implementation of urban development projects. It also specializes in the construction of residential and office buildings. The company was founded in 1968 and is headquartered in Cologne, Germany.

Stadtentwässerungsbetriebe Köln, AöR engages in the provision of water-related services. It specializes in the areas of wastewater disposal, flood protection and prevention, as well as in the care of streams and ponds. The company is headquartered in Cologne, Germany.

Wohnungsgesellschaft der Stadtwerke Köln mbH is a private company based in Cologne, Germany. The CEOs of the German company are Dirk Kolkmann, Dieter Steinkamp. The company engages in rental and leasing of residential buildings and apartments.

Häfen und Güterverkehr Köln AG engages in the provision of transport and logistics services. It manages and operates ports, railroads, and locomotive and freight car workshops. The firm also provides services, which include maintenance and repair of locomotives and freight cars. The company was founded in 1992 and is headquartered in Cologne, Germany.