Kitui Teachers Sacco was founded in 1976 by 11 members with the overall objective of according each other a place to save and borrow funds. Actual lending did not start until 1978.

Initially, membership was restricted to teachers under the employ of the Government of Kenya; but the Society officially changed its by-laws and opened common bond in 2008 to absorb the employees from other government ministries and organizations.

Today, the Society has over 20,000 active members!