Renaturations, environmental reports etc. With CSD you realise projects in accordance with the environment. Read more

Quarries and gravel pits

Gravel pits: Successful approval thanks to our comprehensive expertise in environmental and procedural issues. Read more


Dump "La Pila" (pictured): CSD integrates expertise with creativity in order to handle waste and contaminated sites Read more

Areas and buildings

Integral solutions for new housing developments and redevelopment of neighborhoods. (Pictured: Housing development Gütsch) Read more

Road and rail

Tunnel de base du Gothard Sedrun

CSD provides engineering services in harmony with the environment for successful transport infrastructure projects, for example at the Gotthard base tunnel. Read more


Photo: Geothermal drilling St Gallen, City of St Gallen / Sankt Galler Stadtwerke, 2013. Read more


Near-natural, healthy and economical solutions for the entire water cycle (Pictured: Hydrogeological drilling at Vallorbe). Read more


CSD, environmental pioneer among engineering companies, is committed to economic solutions that improve the quality of living and the environment.

More about CSD
  • News
  • Events
  • The MOOC on “Solid Waste Management in Developing Countries” is a success !

    This first Massive Open Online Course  https://www.coursera.org/learn/mswm developed on this theme by EAWAG and EPFL with the collaboration of CSD is a big success.

    At the end of the first session in March, 12’861 students were enrolled and 500-1000 new students are signing up every week. About 60% are from low- and middle income countries, and more than 30% are from Latin-America.

    Student’s feedback is very good. The course rating is 4.8/5 (Coursera average is 4.5). The course attracts many professionals (66%). Most participants have a bachelor, master or PhD (80%).

    The next session begins on April 4th ! Registrations are open until April 18th : https://www.coursera.org/learn/mswm

    read more
  • Demise of one of CSD’s founders

    When CSD was created in 1970, the goal of the three founders (Bernard Schmutz, Carlo Colombi and Jean-Pierre Dorthe) was to offer services linking construction, geology and the environment. Therefore, geotechnics, the protection and collection of water, quarrying, waste-disposal sites and the cleaning of polluted sites rapidly became part of their daily preoccupations. Acquiring the necessary reputation for the development of these services and the confidence of partners was a difficult challenge that they took up brilliantly. 

    Bernard Schmutz

    Bernard Schmutz was able to rapidly develop CSD’s activities in North Africa (Algeria), then in sub-Saharan Africa, in road-building, geotechnics and drinking water. This enabled CSD to be competitive in public invitations to tender at a time when contracts were negotiated on a private agreement basis.

    Bernard Schmutz was always ambitious and looking for new challenges, while ensuring that he could offer better-than-average quality. His aim was to make CSD a big company that could offer all the services related to engineering and geology. This vision has become reality today.

    We will hold in our memory a gifted engineer and a great entrepreneur who enabled CSD to become the company it is today.

    Our deepest sympathy goes to his family and loved ones, and our thoughts are with them at this time.

    read more
  • Waste management: CSD contributes to a MOOC for developing countries

    For this particular "MOOC" (multi open online course) several thousand people worldwide have already registered, and many inscriptions are still expected until classes start. CSD engineers already engage personally in developing countries in various waste management projects, and they always provide a big "plus" for the environment and for the quality of life of local population.

    This course provides an overview of the municipal solid waste management situation in developing countries covering key elements of the waste management system, with its technical, environmental, social, financial and institutional aspects. Besides understanding the challenges participants will learn about appropriate and already applied solutions through selected case studies. The course also covers strategic planning and policy issues discussing future visions for waste management and the aspect of a circular and green economy. Considering the importance of the organic waste fraction, the course covers several organic waste treatment technology options such as composting, anaerobic digestion, and some other innovative approaches.

    This course is one of four in the series “Sanitation, Water and Solid Waste for Development".

    For more information or if you want to sign up for this course, click here: https://www.coursera.org/learn/mswm

    Please visit the EAWAG homepage for even more information and a trailer: www.eawag.ch/mooc

    read more
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