GMES is the European program for global monitoring of the environment and security. It will provide satellite data and geospatial information services to support management of the environment, climate change, and citizen security. The GMES program includes dedicated Sentinel satellites, data from other space agencies, and collection of in-situ data. It aims to deliver products and services for applications like air quality monitoring, flood warnings, and forest monitoring. The GMES Masters competition recognizes the best commercial GMES services and ideas to promote the program and entrepreneurship.