Elecnor S.A. is a Spanish engineering and infrastructure company specializing in the development, construction, and operation of large-scale projects and services. Headquartered in Madrid and founded in 1958, it focuses on electricity and power generation, renewable energy, telecommunications, railways, gas networks, water infrastructure, and environmental facilities. The company structures its activities around services, turnkey projects, and concessions, allowing it to participate across the full project lifecycle from design and engineering to operation and maintenance. Elecnor S.A. plays a significant role in the deployment of wind and solar farms, high- and medium-voltage power lines, substations, and smart grid systems. It is also active in urban and industrial installations, control systems, and comprehensive maintenance services. Operating in numerous countries across Europe, the Americas, Africa, and the Middle East, the company serves utilities, public administrations, and industrial clients, contributing to critical infrastructure and renewable energy development in both mature and emerging markets.