The European management team represents a diverse and highly experienced group with many years of professional expertise in the engineering and construction industry. Delivering exceptional services to our clients, providing a secure and attractive workplace for our employees, and ensuring sustainable growth as well as long-term success are central to our work.
Leadership CDM Smith SE
Ralf Bufler
Senior Vice President
In March 2018, Dr Ralf Bufler took over the role of Chairman of the Management Board on a German and European level. The geologist is very familiar with the construction industry and the international consulting business and can look back on leading positions at GKW Consult, Dorsch Consult and Bauer Spezialtiefbau.
Andreas Roth
Senior Vice President
Andreas Roth joined CDM Smith in 2016 as Chief Technical Officer. Previously, he worked for international construction companies and railway infrastructure suppliers, where he held various management positions. As Chief Operating Officer he is responsible for business operations in all European countries.
Leadership CDM Smith Sp. z o.o. and CDM Smith Consulting Sp. z o.o.
Jan Zabierzewski
Country Manager Poland
As Country Manager of CDM Smith Consulting Sp. z o.o. in Poland, Jan Zabierzewski provides strategic leadership and oversees complex infrastructure projects. He places strong emphasis on quality, environmental safety and long-term value across projects in Europe and beyond.
Cezary Dąbrowski
Country Manager Poland
As Country Manager of CDM Smith Sp. z o.o. in Poland, Cezary Dąbrowski leads complex infrastructure and industrial projects, specialising in wastewater treatment plants, sewerage systems and retention facilities.
Business Unit Management Team
CDM Smith SE
Ronald Lau
Director Environment & Energy Europe
As Director of Environment & Energy in Germany, Ronald Lau is responsible for the strategic development of the business unit and brings recognised expertise in energy management and the thermal use of water.
Sven Möller
Director Infrastructure & Geotechnic Europe
Dr Sven Möller leads the Infrastructure & Geotechnics business unit in Germany. He is internationally recognised as an expert witness and specialist in numerical modelling for tunnel, bridge, and foundation damage cases.
Klaus Piroth
Director Water Europe
As Director of our Water business unit in Germany, Dr Klaus Piroth brings together extensive experience in flood risk management, hydrogeology, flow and contaminant transport modelling. His expertise also includes environmental and infrastructure planning, along with project management.
Ralf Röser
Director Energy Transition and Field & Laboratory Europe
Ralf Röser leads the Energy Transition business unit and the Field & Laboratory division in Germany, driving the strategic development and long-term growth of both areas.
Carola Zeig
Director International Client Group Europe
As Director of the International Business Unit in Germany, Dr Carola Zeig combines strategic leadership with extensive experience in international water and waste management projects.
Management CDM Smith Group
The European management is implementing the corporate strategy for the coming years together with CDM Smith in the USA.

