In 1976, the private school was recognized by the Ministry of National Education (France) and became member of the Conférence des Grandes écoles in 1997.

In 2002, IESEG was one of the first business schools in France which started to propose a Master in management fully taught in english.

From 2006, IESEG started to collaborate with the CNRS in a shared laboratory and is since then, one of the business schools in France with HEC Paris and others to have this agreement.

[11][12] Although they are more expensive than public universities in France, Grandes Écoles typically have much smaller class sizes and student bodies, and many of their programs are taught in English.

International internships, study abroad opportunities, and close ties with government and the corporate world are a hallmark of the Grandes Écoles.

[13][14] Degrees from IÉSEG are accredited by the Conférence des Grandes Écoles[15] and awarded by the Ministry of National Education (France) (French: Le Ministère de L'éducation Nationale).