Created in 1981, CIRSEE (Centre International de Recherche sur l’Eau et l’Environnement) is SUEZ’s main Research and Expertise Centre. It plays a leading role in the coordination of the Group’s international technical and scientific network, which comprises numerous centres of expertise and research across the world.

Its mission is to identify and develop the scientific, technical and technological skills necessary to underpin the excellence of the Group’s performance and the development of new services.            

Apart from conducting research and innovation projects, CIRSEE provides technical support to the SUEZ subsidiaries and ensures the technological validations.


With 120 researchers, experts and technicians, and working closely with more than 80 partners in France and internationally, CIRSEE is an ideal platform for research, knowledge sharing and developing innovative solutions.

The experts at CIRSEE comprise about ten different nationalities. The skills available at CIRSEE cover the entire water and waste cycle in order to meet the economic, societal and environmental challenges facing SUEZ’s local authority and industrial customers.

Areas of activity

As part of the strategic priorities of the Group, CIRSEE’s work focuses on the areas of water resources, drinking water production and distribution, wastewater treatment and recovery, waste to value and environmental risk management.

To achieve this, CIRSEE uses state of the art laboratories and technological tools.


 Scientific outreach

Through CIRSEE, SUEZ participates in international colloquia and conferences, both scientific and professional, in the areas of water and waste. The experts from the centres of research and expertise contribute to these events through publications, posters and giving talks. CIRSEE is acknowledged by the opinion leaders of the scientific community as a creator of skills and technologies.


Key figures

  • 120 researchers, technicians and experts
  • 65 research and innovation projects
  • More than ten technological platforms
  • More than 1000 people per year come to visit the facilities
  • More than 4000 days of technical assistance provided per year

Fields of expertise :

- Wastewater treatment and recovery

- Water treatment processes and industrial applications

- Analyses, health and sensors

- Waste treatment and recovery

- Drinking water and wastewater networks

Contact :

Centre International de Recherche Sur l’Eau et l’Environnement
38, rue du Président Wilson
78 230 Le Pecq, France
Tél. : +33 1 34 80 23 45