Theo W. Kessler founded the company in 1962. His childhood friend Dr. Willi Steinebach, auditor and tax advisor, was involved in the company as a counsellor in company law and tax matters. He headed the supervisory board until 2019. In 1992, Johannes W. Steinebach purchased the company from Mr. Kessler and his father. Dr. Hannwelm Steinebach and Dr. Felix Steinebach joined the company's management in 2012. Two generations are currently involved.