- Launch of Taraja Mbili spring constructed by COSEO courtesy of GEF /SGP /ICCA
- Enhancing Citizen Participation and Monitoring Devolved System of Government within Baringo County Dec2013-March 2014 (Civil society democratic governance facility UNDP).
- Empowering communities to enhance production and value addition in Irish Potato farming project – November 2019 -June 2020 -Kenya Community Development Foundation) .
- >Enhancing recovery of communities most affected by Covid 19 within Mumberes, Lembus and Lembus Kwen Wards of Baringo County Dec 2020 –Dec 2021 -(Kenya Community Development Foundation) .
- Supporting already established Community Units (CUs) to integrate HIV and AIDS services in line with Community Strategy and in consultation with DHMT supported by National Aids Control Council (TOWA Round (4) -Dec2011-June 2012
COSEO was part of stakeholders in Baringo County during commemoration of World Environmental Day held on 5th June 2024 at Kimalel.