The Drees & Sommer Group collaborates with leading partner companies to offer clients specialized, interface-free services.

Cooperation projects take place at both company and project level when the same specialist expertise is required for typical projects. Drees & Sommer is also a member of temporary cooperation projects in education and research. The aim is to promote innovation and advance socially relevant initiatives. The key cooperation projects on these three levels are described in brief below.


Years of experience, in-depth training and an open ear for its customers – these are the hallmark of bulwiengesa. Social scientists, real estate economists and other experts work together at four locations. The company’s independence is founded on the corporate tradition that the leading employees are partners and company shareholders. Clients can rely on the company’s high quality standards. Bulwiengesa data is used, for example, by Deutsche Bundesbank for the European Central Bank (ECB), the Bank for International Settlements (BIS) and the Organisation for Economic Co-operation and Development (OECD).

Kardham offers a comprehensive range of services for the integrated management of projects – from the design stage through to commissioning. Founded in 1992, the company now employs 300 people, is currently involved in 700 projects, and is one of the most highly regarded players in the industry in France. The company’s collaboration with Drees & Sommer will enable it to look beyond the French market in the future and to include the realization of international projects in its range of services.

ComConsult has been providing completely manufacturer-independent and vendor-neutral consulting services since its foundation in 1995. The company supports customers across all IT lifecycles. Whether process optimization, data center planning or the development of communication and security concepts – the consulting always takes into account all foreseeable new technologies.

Operating internationally, gempex GmbH is an independent service provider specializing in consulting on and implementing GMP requirements in life sciences. Headquartered in the German city of Mannheim, the company maintains offices in Sisseln, Switzerland, and Guangzhou, China.

Your partners for hotel developments: Drees & Sommer, the Swiss architectural and design company Monoplan and the Swiss consultancy M-Estate jointly develop one-stop solutions for hotel projects. Whether a city hotel, a resort or serviced apartments, the established team of experts at 46 locations has been realizing successful hotel projects for many years. With services ranging from a feasibility study and search for investment opportunities to architectural design, structural engineering and operational consulting, Drees & Sommer, Monoplan and M-Estate support your project with the right solutions throughout all phases of your project.

The macom GROUP is Europe’s leading expert for media technology planning and AV and IT technology consulting. Since 1995, the team of over 80 engineers has been supporting leading medium-sized enterprises and DAX companies, schools and training institutions worldwide with the planning and implementation of audiovisual solutions for new work environments, interactive brand centers, theme parks, and digital learning environments.