In a region as modern and industry-oriented as Castilla-León, the aeronautical-aerospace sector is key, and has been so for decades as our region was a pioneer in the development and promotion of this sector. Today, a number of companies and research centers create the perfect environment to carry out investment projects in this industry, with the highest concentration of TIER 1 suppliers in the sector in Spain located here. As well, the strategic geographical location of the region enables providers to be near several European-scale aircraft production and assembly centers, improving the logistics aspect of their operations and cost structure.