Security needs and demands are nowadays constantly increasing for cybersecurity professionals and organisations in general. A cyber range provides a multipurpose virtual environment, which organisations can utilise for training, prototyping and certification of new technologies and create security testing environments that would otherwise be impossible to create. Being the equivalent of classic shooting ranges, cyber ranges are closed and controlled testbeds that contain all the necessary tools, networks and user simulations that are required for all intended security purposes. Within the scope of the ECHO project, a federation of interconnected cyber ranges form the foundation of the ECHO demonstration cases, providing the host environment in which three demonstration cases will be executed and demonstrate the added value that cyber ranges bring in the development of technology roadmaps, cyberskills development as well as certification testing.