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.

In 2004, it entered the renewables business, leveraging know-how from the metal construction operation to develop the energy equipment division.

The main shareholder structure is made up of the founding partners, through I’M SGPS, S.A., and the Mota-Engil Group, both control approximately 80% of the company.

[2] However, the operation was unable to compete effectively in the very difficult pricing environment for wind towers in the 2009-2011 time frame and the investment failed to reach its objectives.

On July 18, 2012, Hirschfeld announced that it had acquired the remaining 50 percent of the joint venture from Martifer for a small cash payment, and as of 2014, had converted the plant to build steel bridge structures.