Setec is the fifth largest French engineering and consulting group[citation needed], involved in infrastructure and transport systems, planning, economics, waste, project, telecommunication, water, energy, geotechnical and environmental management.

Setec was created in 1957 as an acronym of the French Société d'Études Techniques et ÉConomiques, which means "technical and economical design company".

From the 1960s, the company began to organise into different subsidiaries and to develop its international business.

In 2012, it acquired the American MWH's Brazilian subsidiary.

[citation needed] The main projects that setec contributed are for example : and many others infrastructures and buildings.