Andreas Cerbe

BELKAW GmbH provides electricity, water, and gas to corporate and private customers. The company was founded on April 1, 1914 and is headquartered in Bergisch Gladbach, Germany.

Rheinische NETZGesellschaft mbH is a network operator that provides secure gas and electricity supply in and around Cologne. The company is based in Cologne, Germany. The German company offers information on network charges, gas prices, special fees, and balancing parameters. The company is a subsidiary of the City of Cologne. The CEOs of the company are Ulrich Groß, Karsten Thielmann.

Part of Stadt Leichlingen, Stadtwerke Leichlingen GmbH provides natural gas and drinking water services to the Leichlingen market area. The company is based in Leichlingen, Germany. The German company's services include market area conversion, natural gas conversion, conversion to h-gas, conversion from l to h-gas, l-gas, and new natural gas. The company was founded in 1913. The CEO is Frank Steffes.

AggerEnergie GmbH provides environmentally friendly electricity, gas, and water to the region while also supporting social projects. AggerEnergie is based in Gummersbach, DE and ultimately controlled by the City of Cologne. The German company offers reliable natural gas at fair prices for businesses and commercial customers, including small and medium-sized enterprises, industries, and associations. The company encourages customers to switch to regional electricity and become active participants in the energy transition. The company was founded in 1926, and the CEOs are Frank Röttger and Uwe Töpfer.