• ACLU Foundation
• Americans United for Separation of Church and State
• Amnesty International USA
• Brady Center to Prevent Gun Violence
• Central Committee for Conscientious Objectors
• Electronic Frontier Foundation
• Human Rights First
• Human Rights Watch
• Lambda Legal
• League of Women Voters Education Fund
• Legal Momentum
• National Lawyers Guild Foundation
• NOW Legal Defense and Education Fund
• Southern Poverty Law Center
• Union of Concerned Scientists