Echoing Green

 Since 1987, Echoing Green has provided seed funding and support to nearly 500 social entrepreneurs – including the founders of Teach For America, City Year, College Summit, SKS Microfinance, and Genocide Intervention Network.  CIIE nominates 1-2 entrepreneurs to proceed to the second round of the Echoing Green Fellowship application process.
 
http://www.echoinggreen.org

The Unreasonable Institute

The Unreasonable Institute is a mentor-intensive acceleration program for entrepreneurs tackling social and environmental problems. Each year, Unreasonable unites 25 entrepreneurs from every corner of the globe to live under the same roof for six weeks in Boulder, Colorado.
 
www.unreasonableinstitute.org