Drees & Sommer at a glance

Drees & Sommer at a glance

Innovative partner for consulting, planning, construction and operation


As the leading European Consulting, Planning and Project Management enterprise, Drees & Sommer has worked with private and public clients from construction bodies to investors on all types of real estate and infrastructure projects – both analog and digital – for 50 years. With its pioneering and future-shaping consulting, the company offers solutions for successful buildings, high-return portfolios, powerful infrastructure and livable cities. 3,820 employees in interdisciplinary teams based at 46 locations worldwide support clients across a wide spectrum of sectors. All the services provided by the partner-run company take into consideration both economic and ecological concerns. Drees & Sommer calls this holistic approach ‘the blue way’.



"the blue way"

‘the blue way’ is the approach that Drees & Sommer takes to all services. Combining economy and ecology and thus reducing investment and operating costs while enhancing functionality and process quality – as well as taking design, health, well-being and user-friendliness into account – are the goals for all projects. Only in this way can value-add be secured for the principal over the entire life cycle of the property.

Company Organization

The Drees & Sommer Group is characterized by a flexible, decentralized company structure and a corporate philosophy that puts people first. For over four decades the company has developed and pioneered innovations in every phase of its history. 

The Aktiengesellschaft (stock corporation) comprises 40 active Partners who, together with former Partners and employees, are the shareholders of Drees & Sommer SE. This allows the Group to operate independently of third parties and to provide unbiased consulting to clients. As Managing Directors, the Partners are responsible for the operational units as independent entrepreneurs.

In their Managing Director roles in regional offices, the Partners operate as independent entrepreneurs. Partners Dierk Mutschler and Steffen Szeidl form the Executive Board. Prof. Dr. Hans Sommer is Chairman of the Supervisory Board.

Company information

Employees: approx. 3,820

Offices: 46

Group sales 2019: € 500.1 million 

Operating result 2019: € 56.7 million 

Annual construction volume supported 2019 (PM): € 20.1 billion

Project volume supported 2019 (PM): € 60.3 billion


German offices:
Aachen, Berlin, Bremen, Dresden, Dortmund, Düsseldorf, Erfurt, Frankfurt, Freiburg, Hamburg, Hanover, Karlsruhe, Kiel, Cologne, Leipzig, Magdeburg, Mannheim, Munich, Münster, Nürnberg, Potsdam, Stuttgart and Ulm

International offices:
Abu Dhabi, Amsterdam, Atlanta, Basel, Bern, Brussels, Budapest, Copenhagen, Dubai, Eindhoven, Lausanne, London, Madrid, Milan, Moscow, Munsbach/Luxembourg, Paris, Riyadh, Shanghai, St. Petersburg, Warsaw, Vienna, Zurich