MESOCENTRE provides access to high performance/grid/cloud computing facilities and associated data storage. Its main missions are to: - facilitate the development and improvement of scientific softwares, e.g., porting to larger national or European computing centers, - give access to HPC and cloud resources for medium-size computations, at a scale larger than what is commonly available in research groups or local institutes, - promote scientific computing towards SMEs. MESOCENTRE can support projects from any research area.