Tamas Makray was born in Budapest, Hungary. He graduated from McGill University in Montreal with a degree in chemical engineering and worked in the construction of process plants during the early stages of industrialization of Brazil. From 1961 to 1991, he was in charge of the organization and management of a new integrated engineering design firm. Today, this totally employee-owned company provides integrated solutions to clients in all segments of engineering and telecommunications in Brazil and other countries.
Other board appointments include: the World Business Academy (WBA) in 1992, and the Chairman of the Board of the Public Services Commission for Energy in the state of São Paulo, Brazil.