COLIDEI has conducted three projects in Tanzania, First prject is of behavioural change for most at risk population MARPS which was conducted in Maswa Shinyanga from june 2011 to August 2011 with the support from FACT worth 17,088,632/= Tsh.

 Another one is Youth Life Skills project which was conducted in Kijitonyma Dar es salaam from January 2012 to May 2012 with the support from Tadayo Advocates Dar es salaam, worth 12,000,000/= Tsh. 

Currently; COLIDEI run Social Accountability and Monitoring project (SAM) in Road Infrastructures which is conducted in 10 Wards of Kinondoni Municipality Dar es salaam with the support from Foundation for Civil Society (FCS) worth 44,925,000/= Tsh.