USAID is involved in projects worldwide. They are a governmental organization. There is a lot more information than this available. Also I moved this page to NGOs even though it is not an NGO because it is similar to the NGOs listed.

USAID is not an NGO, but it is grouped with the NGOs investigated for efficiency

Link:http://www.usaid.gov/our_work/cross-cutting_programs/water/water_productivity_efficiency.html

What they do?

AguaClara related?

They did not specify which region they were referring to. I don't think we could get funding from them.

This evaluation of USAID needs much more future work, it is not thoroughly researched yet.