O-Flexx Technologies was founded in January 2006 to respond to the obvious need for energy harvesting in the area of waste heat. Founders were the former Managing Directors Ralph Teunissen and Michael Bisges.

Today's investors Emerald Technology Ventures (headquartered in Zurich), SAM GmbH (headquartered in Salzburg) and NRW.BANK (headquartered in Düsseldorf) joined in May 2007, June 2009 and January 2013.

in 2010, 2011 and 2014, German O-Flexx Technologies made it to the list of the 100 most promising cleantech enterprises worldwide. The prestigious Global Cleantech 100 is published by the Cleantech Group in cooperation with the British daily paper The Guardian.


Since February 2013 O-Flexx develops and manufactures its products and systems in the actual location with more than 600 m² office and 1.000 m² produktion space.