The Castellet Hospitality group was formed by the acquisition of a portfolio of 16 budget and mid-scale hotels, located on the south-east of France, and operating under the AccorHotels franchise brands Ibis Budget, Ibis and Mercure.

In October 2017, EMZ invested in bonds and equity alongside Gilles Larrivé, CEO of the group and former head of AccorHotels franchise activity in France. The pool of shareholders also comprises Mr. Didier Gros and Mr. Patrick Jacquier, both reference players and investors in the budget hotel market segment in France.