The National Observatory of Athens (NOA) has been historically nominated by the Greek government as the sole institution in charge of disasters monitoring, with a clear mandate to conduct innovative research for the benefit of the Greek citizens. The Institute for Astronomy, Astrophysics, Space Applications & Remote Sensing (IAASARS) of NOA, through its systematic participation to EC and ESA-funded projects, has achieved a considerable excellence in the area of EO-based environmental and disaster monitoring and management during the last decade. Within IAASARS, a Centre of Excellence has been established, the BEYOND Centre of EO Research & Satellite Remote Sensing. In BEYOND innovative integrated observational solutions have been setup (i) allowing to a multitude of monitoring networks (space borne and ground-based) to operate in a complementary, unified and coordinated manner, (ii) creating archives and databases of long series of observations and derived higher level products, and (iii) making these observations and products available for exploitation with the involvement of stakeholders, scientists and/or institutional users, applicable for down-streaming to their specific needs.