
Students For Liberty
A non-profit organization dedicated to supporting students and student groups dedicated to liberty, Students For Liberty (SFL) counts 400+ pro-liberty student groups of all kinds in its world-wide network.
Best known for: leadership training, conferences on college campuses, free books, online lectures, protest grants, education

The continuation of Students for Ron Paul (SFP), Young Americans for Liberty (YAL) is a chapter-based organization that seeks to recruit, train, educate, and mobilize students on the ideals of liberty and the Constitution.
Best known for: leadership training, training for political campaigns, national contests, activism

Cato on Campus
Cato On Campus is the educational outreach arm created for students by the Cato Institute, dedicated to the principles of individual liberty, limited government, free markets and peace.
Best known for: internships, monthly writing and video contests, events
Local Organizations
Foundation for Economic Education (Irvington, NY)

Best known for: high school seminars, college seminars, The Freeman

The Foundation for Individual Rights in Education (FIRE) is a nonprofit educational foundation whose mission is to defend and sustain individual rights - freedom of speech, legal equality, due process, religious liberty, and sanctity of conscience - at America's colleges and universities.
Best known for: guides to students' rights, speech code reports, litigation on behalf of free speech, speaker's network
The New York City Junto (New York, NY)
Founded by investor Victor Niederhoffer, The New York City Junto is a monthly meeting which focuses on libertarianism, Objectivism, and investing.
Best known for: lectures on Objectivism and Ayn Rand

Moving Picture Institute (New York, NY)
Founded by human rights advocate Thor Halvorssen, the Moving Picture Institute identifies and nurtures promising filmmakers who are committed to protecting and sustaining a free society, and supports their work through grants, fiscal sponsorship, promotion, marketing, internships, training workshops, networking opportunities, and production assistance.
Best known for: internships, fellowships, films supporting liberty
The New York City Junto (New York, NY)

Best known for: lectures on Objectivism and Ayn Rand

Moving Picture Institute (New York, NY)
Founded by human rights advocate Thor Halvorssen, the Moving Picture Institute identifies and nurtures promising filmmakers who are committed to protecting and sustaining a free society, and supports their work through grants, fiscal sponsorship, promotion, marketing, internships, training workshops, networking opportunities, and production assistance.
Best known for: internships, fellowships, films supporting liberty
National Organizations

Focusing on libertarian political theory and the Austrian School of economics, the Ludwig von Mises Institute is a research and educational center in support of the tradition of thought represented by Ludwig von Mises.
Best known for: online book and article database, fellowships, summer seminars, Quarterly Journal of Austrian Economics, scholarship
Reason

Best known for: acclaimed blog Hit & Run, high-quality libertarian videos at reason.tv

The Cato Institute is a public policy research organization — a think tank — dedicated to the principles of individual liberty, limited government, free markets and peace. Its scholars and analysts conduct independent, nonpartisan research on a wide range of policy issues.
Best known for: policy papers, book forums, speakers bureau, annual blueprint for reducing the federal government
Campaign for Liberty

Best known for: lobbying against unconstitutional legislation, political training, grassroots activism