IEES is a non-profit organization seeking to:

  • promote and advance a broad view of Ecological Engineering (working definition of IEES)
  • facilitate and improve the cooperation between ecologists, engineers and other scientific fields;
  • promote the exchange on Ecological Engineering issues between scientific and educational organizations, private enterprises, non-governmental organizations and governmental bodies;
  • support the development of a common Ecological Engineering curriculum;
  • raise the awareness of Ecological Engineering practice worldwide.

IEES core groups

  • IEES advisory board (contact Andreas Schoenborn, co-president)
  • IEES activity board (contact Raffael Kaenzig, co-president)
  • Working group “International Ecological Engineering Curriculum” (contact Glenn Dale)

IEES advisory board

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”

Tjaša Griessler Bulc

Lecturer & researcher

University of Ljubljana,
Faculty of Health Sciences & Faculty of Civil and Geodetic Engineering,
Ljubljana, Slovenia,

Sustainable Sanitation Task Force –

Global Water Partnership/Central and Eastern Europe

“ecological engineering can be an answer how to bring a wisdom of nature in our everyday life”

Tess Thompson
Mark Dyer
David Austin

David Austin

activity group leader

Raffael Känzig

Raffael Kaenzig, IEES co-president

Entrepreneur, Phoster Ltd. Willisau, Switzerland

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

History of IEES

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

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