Irstea is a stake holder in the Ministry of Research bodies in order to adapt to rapid and profound changes in the research environment. It employs 1550 people throughout the country. The central services located in Antonydefine the general policies of the institution. They coordinate research activities and manage the human, financial and IT resources of the Institute. The central services of Irstea are organized in 2 poles - The research and innovation cluster that brings together scientific management, scientific departments, industrial relations and valorisation, European and international relations, scientific and technical information, monitoring and foresight, and evaluation, The research support cluster containing human resources, the management of information systems, finance, legal and heritage departments. A network of 9 regional directorates is the local extension of the instituteâÂÂs policy and occupies a privileged position to understand the needs of local actors and to satisfy them. They harbor the vital forces of research, insofar as it is anchored in the territories. Irstea is very involved in some networks, important vectors of the scientific integration and places of watch, information, exchanges, but also assembly of projects. This partnership approach is not exclusive but complementary to strategic partnerships with certain organizations outside these networks. PEER (Partnership for European Environmental Research) has demonstrated throughout the past 15 years what they able to achieve to gether within a strategic network which is based on a European Research Area concept. Irstea is the driving force behind this strategic partnership at European level, which has a desire to pool research and development capacities in the field of the environment. Eur Aqua(European Network of freshwater research organizations) aim is to contribute substantially to the development of European freshwater science and technology and its dissemination on a European scale, thus having a significant input on the development of the scientific and economic basis of European water management. Irstea is also involved in EurAqua, whose strategic dimension is focused on supporting public policies related to water management, linked to the PEER network. Within the 9 regional centers, Irstea researchers are in direct contact with the territories, on whose observation they base their research analysis. Environmental science offers a detailed link between experimentation, theoretical models and technological innovation, and is mirrored in a close partnership with public actors and therefore the economic fabric. Availability of water resources, pollution, aquatic ecosystems, natural hazards, irrigation, fishing, development etc, water management is more than ever a global issue. In Europe, a framework directive thus sets the objective of achieving the good ecological status of water bodies. The study and management of surface water, and related activities, mobilize nearly half of Irstea's research forces. The institute deploys a wide range of activities dedicated to water resources, aquatic environments, infrastructures and uses. Companies face the challenge of reconciling productivity and respect for the environment: they are now accountable for the impact of their activities on resources and environments. The development of environmentally sound technologies favors a global approach (from conception to end-of-life) and a multicriteria approach (environmental, economic and social components). The fields of application of the research concern the agro-industrial sectors: agriculture and agri-food, waste management and storage, purification, new technologies. Cemagref, the National Center for Agricultural Machinery, Agricultural Engineering and Water and Forests, was created in 1981 by the merger of the GREF Technical Center (CTGREF) and therefore the National Center for the Study and Experimentation of Agricultural Machinery (CNEEMA). He became Irstea in Gregorian calendar month 2011, so as to form his name coincide with this reality of his analysis, that evolved in thirty years from issues of mechanization and rural development towards agri-environmental problems. Annual budget of IRTEA in 2015 was 109, 5 million euro, of which 26% was its own resources. It holds nearly 150 employees and staff including 1100 researchers, engineers, doctoral students and post-docs. It contains 14 research units. It has contact with 300 companies as a direct partners or collaborative projects.