BRC4Env, the network of Biological Resource Centres for the Environment, aims at storing and providing environmental resources (biological material and associated data), in a secure way and an optimal traceability. BRC4Env supports both fundamental and applied research based on agro-environmental bioresources. These biological and/or genomic resources are sampled from soils, sediments, waters, agricultural ecosystems, and preserved in organized collections. They include microorganisms, as well as animal and plant resources, whose management or spreading do not directly depend from human intervention. BRC4Env provides these resources available for researchers from academia, but also industry and forces of civil society. BRC4Env is one of the pillars of the French national infrastructure "Agricultural Resources for Research" (AgroBRC-RARe).