Christian Laplaud, graduate of ESTP, created G2C environnement in 1989 for carrying out engineering-consulting studies for local government clients. Over the two following decades, the company would expand its knowhow to several different domains resulting in the creation of the firms G2C ingénierie and G2C informatique in 2006 under the parent holding company, Altereo. Since then, the company has continued on its trajectory towards growth and development through different projects worldwide and the creation of international subsidiaries.