Ecopath International Initiative or EII is a not for profit research organization based in Spain, focused on the contribution to the sustainability of living resources and ecosystems through the development, implementation, education and promotion of analytical tools and ecological modeling, with special emphasis on the use of modeling approach Ecopath with Ecosim (EwE). We closely collaborate with institutions in the fields of research, technology and education, in conjunction with the “Ecopath Research and Development Consortium”.

We participate in research projects and software developments with partner institutes across the globe to support and expand the EwE software, and to integrate ecosystem modelling into decision making processes. We organize ecosystem modelling courses, coordinate user support and project development and maintain the lifespan of the EwE software on behalf of the Ecopath Research and Development Consortium.