About IEES

The IEES is a non-profit organisation which seeks to:

  • Promote contacts between scientists and eco-engineers from different countries and coordinate their activities;
  • Improve the cooperation between ecologists and engineers;
  • Exchange information in the field of ecological engineering among scientific and educational organizations, private enterprises, non-governmental organizations and governmental bodies.
  • Bridge the discipline Ecological Engineering worldwide
  • Interconnect universities, support the development of a homogeneous Ecological Engineering curriculum
  • Raise the awareness of Ecological Engineering practice worldwide.

History of IEES

The idea to bring together experts and conduct Ecological Engineering activties within an international society was born at the 1st Conference on Ecological Engineering in Stensund, Sweden in 1991.

The Stensund Ecological Center with its ‘Vattenbruket’, a Wastewater Aquaculture greenhouse demonstrating Ecological Engineering principles of closed nutrient cycles served as a unique crystallization point.

Two years later, in October 1993 the society was officially founded in Utrecht, Netherlands by thirteen engaged participants.

The first annual meeting was held in June 1994 in Stangvik, Norway

First annual meeting in June 1994.
First annual meeting in June 1994.

Since then the network has been spanning widely around the globe with its headquarter today located in Switzerland at ZHAW Wädenswil.

IEES core groups

The IEES board consists of two boards, the advisory board and the activity board.

advisory board leader

Andreas Schoenborn, IEES co-president

Lecturer & researcher , Zurich University of Applied Science, Institute of Natural Resources Science, Waedenswil, Switzerland

“ecology can teach us how to live sustainably on planet Earth”





activity group leader

Raffael Kaenzig, IEES co-president

Entrepreneur, Phoster Ltd. Willisau, Switzerland

“support solutions to enable future generations to live on a resilient planet”