Water, material and energy are fundamental in our built environment. Ecoloop runs processes of development, from strategy to established practice, with the aim to improve the management of these key resources. Ecoloop offers strategic consultancy and development in the interface between research and practice since more than 10 years. We contribute to the future management and technologies for small-scale sewage treatment applications, sustainable aquaculture, utilization of waste and contaminated sediments, excavated rock and soils, water and nutrients.