Access; Advocacy for Principled Action in Government; American Association of Law Libraries; American Booksellers Foundation for Free Expression; American Civil Liberties Union; American Library Association; Arab American Institute; Association of Research Libraries; Bill of Rights Defense Committee; Brennan Center for Justice; Campaign for Digital Fourth Amendment Rights; Center for Democracy & Technology; Citizen Outreach; Competitive Enterprise Institute; The Constitution Project; Constitutional Alliance; Council on American Islamic Relations; Defending Dissent Foundation; DownsizeDC.org, Inc.; Electronic Frontier Foundation; Freedom of the Press Foundation; FreedomWorks; Free Press Action Fund; GenOpp; Government Accountability Project; Honorable Bob Barr, Former Congressman; Human Rights Watch; Liberty Coalition; Media Alliance; National Coalition Against Censorship; National Security Counselors; New America’s Open Technology Institute; OpenMedia.org; OpenTheGovernment.org; PEN American Center; PolitiHacks; Project on Government Oversight; Public Knowledge; Republican Liberty Caucus; R Street; The Rutherford Institute; Student Net Alliance; TechFreedom(9/4/2014)
Advocacy for Principled Action in Government; American-Arab Anti-Discrimination Committee; American Association of Law Libraries; American Booksellers for Free Expression; American Civil Liberties Union; American Library Association; Application Developers Alliance; Association of Research Libraries; Brennan Center for Justice; Center for Democracy & Technology; CloudFlare, Inc.; Committee to Protect Journalists; Competitive Enterprise Institute; Computer & Communications Industry Association; The Constitution Project; Constitutional Alliance; Defending Dissent Foundation; DownsizeDC.org, Inc.; Electronic Frontier Foundation; Engine Advocacy; Free Press Action Fund; FreedomWorks; Global Network Initiative; Government Accountability Project; Hackers & Founders; Human Rights Watch; Internet Association; Internet Infrastructure Coalition; Liberty Coalition; Mozilla; National Association of Criminal Defense Lawyers; New America's Open Technology Institute; Niskanen Center; OpenTheGovernment.org; PEN American Center; Project On Government Oversight; Public Knowledge; R Street; Reform Government Surveillance; ServInt; Silent Circle, LLC; Sonic; TechFreedom; Venture Politics; Wikimedia Foundation; World Press Freedom Committee(3/25/2015)