Institut d'Economie Scientifique Et de Gestion.

IÉSEG School of Management is a French grande école, private and graduate business school, established in 1964 in Lille, France. IÉSEG School of Management is a member of the private Université Catholique de Lille consortium, the largest private university in France in terms of student population and endowment. The school has two campuses, one in Lille and one in Paris. IÉSEG holds the "Triple Crown" of international business school accreditations: EQUIS, AACSB, and AMBA.