American Wind Wildlife Institute (AWWI)
Conservation Law Foundation (CLF)
Natural Resources Defense Council (NRDCNatural Resources Defense Council -an environmental action group, combining the grassroots power of 1.3 million members and online activists with the courtroom clout and expertise of more than 350 lawyers, scientists and other professionals.
NRDC has office in New York, Washington, Chicago, Los Angeles, San Francisco and Beijing - http://www.nrdc.org/)
The Wilderness Society (TWS)
Union of Concerned Scientists (UCS)
Environmental Law and Policy Center (ELPC)