The railway world is a dynamic sector where innovation and custom systems are often requested to reach complex challenges. SEPSAMEDHA is day to day evolving its products to fit client needs. SEPSAMEDHA is based on state-of-the-art designs, hard work and entrepreneurship, and it is the passion for innovation and, on top of that, or top quality what moves forward the company. New products and systems are usually developed involving customers in the R&D process to ensure that the features and priorities in development projects meet customer needs. We also cooperate with academic partners, such as universities, to shape state-of-the-art technologies. Taking into account the specific characteristics of our scope of products, our Engineering is divided into two main areas: power electronics, whose mission is the development of auxiliary power converters and battery chargers; and on-board electronic systems such as information and entertainment for passengers, video surveillance, data communications and other ground-based systems. Both working focused on their respective range of systems, though taking advantage of the synergies that their technological developments could provide from each other.