As a holding company, Drees & Sommer is the owner of the independent operational units of the Drees & Sommer Group. The operational units are either regional companies or Expert Teams with wide-ranging autonomy. The entire Group uses the network to add value for clients. 

The main shareholders in Drees & Sommer SE are the active and former Partners, each of whom has a minimum shareholding. All Partners have joined together to form a consortium whose constitution safeguards the long-term continuity of the company’s development. As a result, the company is independent of third parties. 

Currently, Drees & Sommer is managed by three Partners acting as the Executive Board in close cooperation with the operational Partners and the Managing Directors. The Partners are have committed to maintaining the company’s successful strategy and corporate culture. 


Prof. Dr. Hans Sommer (Chairman of the Supervisory Board)
Dr. Johannes Fritz 
Dr. Bernd Gaiser
Eva Dietl-Lenzner
Dr. Jürgen Laukemper
Yvonne Allner