Eysa

The provided articles do not directly mention or provide information about an organization called "Eysa." Therefore, it is impossible to create a summary about Eysa based solely on the given text. The articles discuss Aena's search for a parking operator for its airports and the development of a new payment system for public transport in Madrid. Without additional context or information, it is impossible to determine if Eysa is involved in either of these projects or to provide any details about its background, recent activities, or relevance.