EarthRights International (ERI)

ERI is a 501(c)(3) nonprofit group of activists, organizers, and lawyers with expertise in human rights, the environment, and corporate and government accountability. ERI has offices in the U.S. and Southeast Asia. EarthRights International (ERI) is a nongovernmental, nonprofit organization that combines the power of law and the power of people in defense of earth rights. We specialize in fact-finding, legal actions against perpetrators of earth rights abuses, training grassroots and community leaders, and advocacy campaigns. Through these strategies, ERI seeks to end earth rights abuses, to provide real solutions for real people, and to promote and protect human rights and the environment in the communities where we work.
Human and Environmental Rights

They do a lot of work with the Achuar communities in Northern Peru. They focus on corporate accountability and indigenous rights issues surrounding the extractive industry. Please see Maynas v Occidental Petroleum for their current case in Peru: http://www.earthrights.org/legal/maynas-v-occidental