Since 1982 IIEF has been serving more than 2 million test takers of various testing and certification partnership with more than 200 institutions in Indonesia.

IIEF provide international education English assessments for primary to higher education level partnership with Educational Testing Services (ETS) : TOEFL Primary, TOEFL Junior, TOEFL ITP and TOEFL iBT.

Also IIEF provide various professional testing and certification partnership with PROMETRIC: GRE, Praxis, Project Management Institution (PMI), United State Medical Licensing Examination (USMLE), EDGE, John Hopkins Institute, Education Records Bureau (ERB), Chartered Institute for Securities and Investment (CISI), Society of Actuaries (SOA) etc.