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.

Since the foundation in 1983, CRC Clean Room Consulting GmbH is specialized in the planning and realization of highly technical production and research buildings for the high-tech and life sciences sectors.

CRC plans and realizes clean room and laboratory buildings for its customers worldwide, such as production buildings for microelectronics, microsystems technology, opto- and nanoelectronics or the battery industry as well as laboratory buildings for pharmaceutical production and research. CRC has special expertise in the planning of wafer fabs and high-tech facilities for customers in the semiconductor industry.

Think and act in a networked way: As a consulting company, PROTEMA has been supporting customers worldwide for 25 years in strategies, processes and organization as well as simulation and realization of factory and logistics systems in various industries. The focus is on consulting and planning along the supply chain and on solutions for holistic supply chain management. The design and selection of IT solutions for process automation, digitalization and Industry 4.0 as well as conception, planning and optimization of individual sites are also among the competencies. The aim of the specialist consulting and partnership-based support is to holistically design and continuously develop the customer's overall organization and to increase performance along the value and logistics chain.

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.

OLI Systems is a Start-Up working on blockchain-based distributed energy management solutions since 2016. OLI boxes and gateways can connect to each other via blockchains based on Ethereum technology forming local energy networks. We are an active member of the Energy Web Foundation and one of the first validators of the Energy Web Chain. Currently, OLI technology is used in applications of several energy suppliers and grid operators in Germany.

Since 2005, UNIT4 has been active in the four disciplines of construction consultancy, architecture, (partial) general planning and project management, primarily in the industrial and research and development sectors. UNIT4 offers its clients integrated planning services.

UNIT4 has many years of experience in the planning and realization of advanced technology facilities, including pharmaceutical production facilities and data centres, as well as the high-tech sectors of microelectronics, photovoltaics and battery production.