The genesis of County Sacco is traced to 13/02/1991 when it was registered by the commissioner for cooperatives development under the cooperatives societies Act cap 490 under the name Rukuriri Tea Growers Savings and Credit Co-operative Society Ltd. The Sacco was registered in order to serve tea farmers whose tea proceeds were marketed by Rukuriri Tea Factory and other tea factories such as Mungania and Kathangariri tea factory. The society is located on the slopes of Mt. Kenya, some 170 Kms from Nairobi in Embu East Sub-County.
The society has since rebranded to County Sacco which literally means an ambitious Sacco with a strategic focus in all counties in Kenya.
County Sacco was licensed to undertake savings and credit business in 2011and it was licensed by Sacco Services Regulatory Authority (SASRA) to take deposits from the general public. County Sacco derives its mandate from the Co-operative Societies Act, 2004 and the Sacco By-laws.