Efacec Power Solutions, SGPS, S.A., founded in 1948 and headquartered in Matosinhos (Parque Empresarial Arroteia Poente, S. Mamede de Infesta, Portugal), is a global engineering group specializing in power and distribution transformers, medium- and high-voltage switchgear, automation systems, and EV charging infrastructure, serving more than 65 countries worldwide.