Martifer SGPS, S.A. is a family group based in Oliveira de Frades, Portugal, with over 3,000 employees, focusing its activity on the metal construction and renewable energy areas. The company launched its first operations in 1990 in the metal structure industry. In 2004, it entered the renewables business, leveraging know-how from the metal construction operation to develop the energy equipment division. Martifer is a market leader in Iberia for metal construction, and aims to become the top player in other specific markets, namely Europe and Angola. In renewable energies, Martifer would like to become established as an integrated producer of turn-key solutions for the wind and solar segments. Furthermore, within renewable energies, Martifer operates as a promoter of electricity generation projects, with a portfolio of holdings in projects at different phases of development. Martifer SGPS, SA is the Group's holding company and has been listed on the Euronext Lisbon since June 2007. In 2008, its core activity operating revenues reached EUR 650 million. Wikipedia