ECOGEOS is a consulting firm that aims at providing scientific and technical assistance as well as advisory services in the field of environmental engineering (waste, soil and water). Our services are meant for waste treatment unit operators, public administration, local authorities and consulting firms in the sector (subcontracting), in France and abroad. Our activities focus specifically on four fields of work: Field 1: Waste characterization et optimization, securing and monitoring of waste treatment facilities. Field 2: Environmental Hydro-geotechnics (waste, residues and contaminated soil) and by extension site redevelopment (possibly with ground-based solar farms). Field 3: Development of methods and processes as well as surveys, state of the art and evaluations in the environment, energy and land sectors. Field 4: Observation and social analysis of domestic and industrial waste treatment plants (risk management, analysis of conflicts, communication and public participation, etc.). In order to ensure an original and highly efficient service, ECOGEOS devotes a significant portion of its activities (50%) to R&D. This investment results in the development of simulation models, the writing of publications and the establishment of public-private partnerships. This R&D work has resulted in the publication of some 30 articles disclosed in scientific journals or during international conferences.