Stilog I.S.T. is a company specializing in information technology services and software publishing. With two entities located in Nanterre and La Ciotat, Stilog I.S.T. develops innovative solutions characterized by a pragmatic use of available technologies.

Founded in 1991 by Christophe Poirmeur and François Berthelot, Stilog I.S.T. initially expanded by creating custom scientific calculation software for large companies in the energy and aerospace sectors.

In 1994, the company ventured into software publishing by creating Visual Planning, the first interactive application dedicated to scheduling management. Subsequently, the two activities, "IT services" and "software publishing," grew concurrently, coexisting harmoniously and sharing the same values.

The company is based in France and has a subsidiary in the United States, as well as a network of partners in the United Kingdom, Germany, Spain, Benelux, and more.