American Association of Law Libraries; American Association of University Professors (AAUP); American Library Association; Association of Research Libraries; Center for Democracy and Technology; Center for Effective Government (formerly OMB Watch); Center for Responsive Politics; Citizens for Responsibility and Ethics in Washington (CREW); Center for Science and Democracy, Union of Concerned Scientists; Data Transparency Coalition; Defending Dissent Foundation; Essential Government; Free Government Information; Government Accountability Project; Humane Research; Jeremy Bigwood; Investigative Newsource; iSolon.org; National Coalition for History; National Freedom of Information Coalition; National Priorities Project; National Security Counselors; Northern California Association of Law Libraries; Object Management Group, Inc.; Open CRS; OpenTheGovernment.org; Project on Government Oversight (POGO); Society of Professional Journalists; Sunlight Foundation; Transactional Records Access Clearinghouse (TRAC); Understanding Government; Utah Foundation for Open Government; Washington Coalition for Open Government(3/1/2013)
American Association of Law Libraries; American Library Association; American Society of News Editors; Association of Alternative Newsmedia; Association of Research Libraries; Bill of Rights Defense Committee; Center for Science and Democracy at the Union of Concerned Scientists; Citizens for Responsibility and Ethics in Washington; Common Cause; Data Coalition; Defending Dissent Foundation; Demand Progress; Free Government Information; Government Accountability Project; OpenTheGovernment.org; Project On Government Oversight; R Street Institute; Society of American Archivists; Sunlight Foundation(3/8/2016)