Kreienbaum has wide experience as Production and Factory Manager from several companies (B. Krone, Lemken). He run his own business as a Freelance Factory Manager before he joined the Kverneland Group in Soest as Production Director in 2002. For two year he held the position as GM Business Unit Manager Soil and from February 2007 he was appointed Managing Director BA Arable Soil Equipment. Kreienbaum is educated from F.H. Steinfurt, Technical College Mechanical Engineering.