Siala Technical Training Institute was established in the year 2015 Under the sponshorship of the African Development Bank (ADB) in conjunction with the Government of Kenya. The institute came as a replacement to Moi Institute of Technology (MIT) which was converted to Rongo University. The land where theInstitute is situated was initially owned by the community that surrendered it to the Government of Kenya for any social project.

The Institute is located in Migori county, along Rongo- Homabay road approximately two Kilometres from Rongo town. It boasts of of very expansive arable land suitable for agricultural undertakings. The institute is commonly referred as "Mesopotamia" because of its location between two adjacent rivers - Misadhi and Nyandito.

The Institute is a centre for both Kenya National Examination Council (KNEC) and Kenya Accountants and Secretaries National Examination Board (KASNEB)