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In a world full of change and challenges, client needs sometimes arise so quickly that the Drees & Sommer Group is unable to develop appropriate responses in a reasonable time. In such cases, Drees & Sommer expands its expertise through shareholdings. Affiliated companies make their expertise available to the Group and provide timely support to our clients.

In keeping with our aspirations and philosophy, the companies involved are all leaders in their fields. We work together with them as equals. In this way, the affiliates not only complement our service portfolio in an ideal way; like us, they work with enthusiasm to ensure our clients’ success.

digitales bauen has developed a digital planning method that can translate every individual architectural draft and all technical building plans into modules. The modules are summarized in catalogs, where they are systematically processed as a whole. The aim is that identical areas and designs, such as offices or sanitary areas, are planned only once. The modules are planning standards, logistics standards and assembly standards in one. Ideally, they can be completely prefabricated using industrial techniques and assembled efficiently on the building site.

Drees & Sommer and the former EPEA Internationale Umweltforschung GmbH joined forces on January 1, 2019. After five years of close partnership advising clients and investors, Drees & Sommer and Professor Dr. Michael Braungart have formally teamed up to create a new company under the name of EPEA GmbH – Part of Drees & Sommer. The objective of the combination is to establish Cradle to Cradle® design principles for the circular economy in all sectors of industry.

Based in Stuttgart, Gassmann + Grossmann Baumanagement GmbH (g²) specializes in skilled, high-quality construction management. The company has managed projects of varying types and size since 1998. g² has offices in Stuttgart, Pliezhausen, Fribourg, Frankfurt, Munich, Berlin, Hamburg, Cologne, Leipzig and Vienna.

RBSGROUP offers planning and consulting services covering the entire life cycle of office buildings. The focus is on the development and implementation of new office concepts with innovative spatial and workplace typologies. RBSGROUP has offices in locations including Basel, Cologne, Frankfurt am Main, Hamburg, Munich, Milan, Stuttgart, Warsaw and Zurich.