CHF International

http://www.chfinternational.org/publications/2010-annual-report.pdf

The only downside of this organization for me is that it is US based and requires work authorisation. Also their intern positions are unpaid so it’s not likely to be easy for me.

They are maybe a US version of Shelter Associates, but they are very well established with publications and good roots in work in the US and now globally in areas like infrastructure, micro/SMEs and housing. Right up my street.