Ivaini Secondary School was established as a single-stream Secondary school around 1991. It was started as a pure Boarding School but later opened its gates to the local by starting a Day Wing.
The school offers a wide range of curricular and co-curricular activities as directed by the Ministry of Education. Due to its increasing popularity, its population of students has been increasing year in year out and in 2008, a second stream was added to accommodate more students. The school was registered as a triple stream in 2010.
P. O. Box 942-9020, Kitui.