The establishment is twinned with the Federal Ministry of Education and Research (Germany) ; it is also a Cambridge exam centre.

The school also prepares students for language exams such as the Cambridge English Advanced (CAE) and the Deutsches Sprachdiplom 1 and 2 (DSD).

In 1857, Count Pierre de Lavalette bought the hotel and with architect Jules Gros transformed it into a Baroque Italo-Spanish pastiche, doubling the size of the right wing with sculpted decoration.

At the end of 1872, rue de Turenne, some priests from the Oratory began to educate youth.

[2] The école Massillon is rich in cultural and international diversity, and works with numerous associations, including many humanitarian organisations (A.C.K.S.P., Solar Burkina Project...), a student investment club, multilingual debating societies, and educational associations such as a theatre club run by Xavier Maly as well as a chess club which in 2011 won a student tournament and a scout group.