What are the entrance exams for ensai?

There are four entrance examinations to apply to ENSAI: 

The “Economics and Social sciences” competitive entrance examination (students from khâgnes scientifiques B/L – inter-ENS competitive entrance examination) 

The “Economics and Management” competitive entrance examination (students from ENS Paris Saclay D2 preparatory classes – inter-ENS competitive entrance examination) 

The “Mathematics” competitive entrance examination (students in MP, MPI, PC, PSI scientific preparatory classes – concours commun INP) 

Internal competitive exam: This competitive exam is open to civil servants and public contract workers of the three civil services and public establishments dependent on them, as well as to military personnel, magistrates and candidates working for an international intergovernmental organization.