Oxydis-expertises is a collective of independent ecology specialists working to support biodiversity and climate action across metropolitan France, French overseas territories and the southwestern Indian Ocean. The organisation serves businesses, local authorities, government services and non-governmental organisations, providing scientific expertise and practical project support from design through implementation. Its work covers ecological engineering, including the restoration of degraded natural environments and the development of nature-inspired facilities and landscapes.

Oxydis also helps prevent and manage invasive alien species, with approaches tailored to local conditions and focused on early detection and effective response. Its naturalist services include wildlife and plant surveys, regulatory studies, assessments of ecological diversity, analysis of project impacts and recommendations for appropriate avoidance, reduction and compensation measures. Through Écogénius®, Oxydis collaborates with four specialist businesses to deliver technical studies and ecological restoration or landscape projects.

Its multidisciplinary team brings expertise in project management, biosafety, botany, forestry, urban and marine ecology, mapping, agroecology and environmental education. Each assignment is matched to the relevant specialists