The website of the White House Office of Faith-Based and Neighborhood Partnerships includes information on grants as well as upcoming regional conferences and targeted workshops aimed at helping organizations apply for grants.

The Military Association of Atheists and Freethinkers is a support organization for nontheists in the armed forces.

The Institute for Humanist Studies is based in Washington D.C., and aims to promote “humanism, a nonreligious philosophy based on reason and compassion. IHS advances human rights, secular ethics and the separation of religion and government through advocacy, innovation and collaboration.” Contact administrator Maggie Ardiente.

Atheist Alliance International (AAI) is a global federation of atheist and freethought groups and individuals, committed to educating its members and the public about atheism, secularism and related issues. It is based in California and has a list of affiliates.

The American Humanist Association is based in Washington D.C. and includes state chapters. The AHA definition of humanism encompasses a variety of nontheistic views including atheism, agnosticism, rationalism, naturalism and secularism.

The Secular Coalition for America was founded in 2005 as the “only organization in the nation whose primary purpose is lobbying Congress on behalf of atheists, humanists, freethinkers, and other nontheistic Americans.” The SCA is endorsed and supported by numerous secularist groups.

For statistics, see the Center for Applied Research in the Apostolate at Georgetown, the nonprofit research organization that conducts social scientific studies for the Catholic Church.

The Muslim Public Affairs Council works for Muslim participation in civic life. It works to cultivate leadership in young Muslims and encourage a sense of ownership over their religious and national identity as Americans. The group’s $1.1 million budget includes no overseas funding. It has offices in Washington, D.C., and Los Angeles and has several […]

The Council on American-Islamic Relations says it is the largest advocacy group for Muslims in the U.S. It advocates for Muslims on issues related to civil liberties and justice. Contact communications director Ibrahim Hooper in Washington, D.C.