Engreg International Schools operate at kindergarten, primary and secondary school levels.  Apart from the kindergarten and the foundation stages, the primary school section comprises the lower primary school [Basic 1 to 3] and the higher primary school which is made up of basic 4 to 6.  All these sections are manned by different but qualified sectional heads.  Their curricular of studies are stemmed from the National Curriculum of Education for primary schools and the British Curriculum  for pupils of primary school category.

The secondary segment of the school comprises: Junior High School and Senior High School. The lowest level is junior secondary school one to three [Basic 7- 8]. The students at this level study for the Junior National Examination Council of Nigeria Examination [ NECO], Junior Secondary School Certificate Examination [ JSCE] and Bond Assessment Examination which is a preparatory paper towards the America AP examination and IGCSE O Levels while the Senior Secondary School which comprises Senior Secondary School one to three [ SS1- SS3] focus on the West African Senior Secondary School Certificate Examination [WASSCE], the National Examination Council of Nigeria Examinations, IGCSE O Levels and American AP examinations.