Shearman & Sterling advised the French Caisse des Dépôts on a business combination between Egis, an engineering and infrastructure leader wholly owned by the Caisse des Dépôts, and Iosis, a construction and civil nuclear engineering leader. The agreement was announced on October 14, 2010.

The combined entity will have a workforce of approximately 10,000 employees and projected revenue of over €815 million, of which 50% will be generated outside France in over 100 countries. Executives and employees of the combined entity will be allowed to invest in a holding company that will hold approximately 23% of Egis. The closing is expected in Q1 2011.