Uwe Kettner

Oberhessische Gasversorgung GmbH provides various services related to gas supply, payment transactions, invoice explanation, and energy efficiency offers. The private company is a subsidiary of Stadtwerke Friedberg GmbH and ultimately controlled by the City of Frankfurt. The company is based in Friedberg, Germany. The German company also offers up to €1,000 bonus for switching to their heating services, as well as a thank-you bonus for referrals. Additionally, they provide affordable natural gas, heating leasing, and fixed-price heating services. The CEOs are Holger Reuss, Stefan Hammer. The company was founded in 1977.

Hotmobil Deutschland GmbH provides mobile heating, air conditioning, and steam generators for rent. The private company is based in Gottmadingen, Germany. The German company's technical service is available to customers for any questions. The company is a subsidiary of Mainova EnergieDienste GmbH and ultimately controlled by the City of Frankfurt. Hotmobil Deutschland was founded in 1994, and the CEOs are Uwe Kettner and Bernd Becherer. The company was acquired by Mainova EnergieDienste GmbH on September 15, 2009.