The ISG Paris was founded in 1967. In 1982 and 1984, the campuses of Tokyo and New York City were inaugurated. The university concluded its first partnership with China in 1985. In 1997, the university joined the IONIS Education Group. In 2004, the diploma was recognized by French Ministry of National Education and the university was accredited by IACBE before becoming member of UNIDO in 2006. In 2007, the university was accredited by ACBSP before being recognized by French State to deliver a Master’s degree in 2009. The same year, the school became a member of AACSB. On 10 April 2012, the ISG became a member of the Conférence des grandes écoles.
Since 2013, IONIS Education Group wants to develop day-time or night school education for employees provided by companies by developing programs based on the 11 Masters of Business Administration of the university. It has a double degree agreement with the EAN University of Bogotá, Colombia.In 2014, ISG Business School launched a subsidiary specialized in luxury, fashion and design called Moda Domani Institute