Markus Wienand

Sparkasse KölnBonn provides banking services to private and corporate clients. Its products include online banking and payment system; current and savings accounts; credit cards; deposits and investments; loan and financing, building and home financing; securities and brokerage; retirement plan and insurances; international banking; liquidation management; as well as corporate formation and succession. The company was founded in 1826 and is headquartered in Cologne, Germany.

Stadtwerke Troisdorf GmbH provides utility services and is ultimately controlled by the City of Cologne. The company is based in Troisdorf, Germany. Stadtwerke Troisdorf was acquired by RheinEnergie AG on April 27, 2005. The German company was founded in 1904. The CEO is Peter Blatzheim.

Energieversorgungsgesellschaft mbH Sankt Augustin generates electric energy. The private company is based in Sankt Augustin, Germany. The CEOs of the German company are Marco Westphal, Marcus Lübken.

Rhein-Sieg-Abfallwirtschaftsgesellschaft mbH is a waste management company based in Siegburg, Germany. The CEOs are Ludgera Decking and Sascha van Keeken. The German company offers services such as collecting and disposing of trash bins and containers. Rhein-Sieg-Abfallwirtschaftsgesellschaft mbH also provides additional services like offering sorting bags and containers, as well as a convenient app that reminds users of their waste collection schedules. The company also caters to commercial customers through their subsidiary, ERS EntsorgungsService Rhein-Sieg GmbH. The company's official website provides information on waste calendars, bulky waste collection requests, and details about waste disposal facilities in the Rhein-Sieg-Kreis area. The company was founded in 2002.

Kreissparkasse Köln engages in the provision of banking and financial services for private and business clients. It offers traditional banking services, such as student and business debit accounts, credit cards, mortgage, car and private loans, pension schemes, and insurances. Furthermore, the firm also offers savings and home building savings accounts and schemes, time deposits, and managed and unmanaged securities accounts. The company was founded in 1853 and is headquartered in Cologne, Germany.

Gemeinnützige Wohnungsbaugesellschaft für den Rhein-Sieg-Kreis (GWG) is a community housing company based in Sankt Augustin, Germany. GWG builds and manages housing for a wide range of tenants in the Rhein-Sieg district. The German company is actively seeking building grounds for purchase to develop one and multi-family houses in at least 2 storey construction. To submit offers, interested parties can contact GWG via email at gwg@gwg-rhein-sieg.de or by phone at 02241-93 45 0. The non-profit company was founded in 1939 and is currently led by CEO Rolf Achim March.