American Atheists is a national organization of nontheists founded by Madalyn Murray O'Hair.
Good Without a God
Freedom Without Favor, Equality Without Exception
Camp Quest NorthWest is a residential summer camp focused on fun, friends, and freethought for kids ages 8-17
REASON. SCIENCE. SECULAR VALUES.
National organization to promote separation of church and state.
Support for those losing their faith in God.
Advocacy Group for many secular groups
Educational Non-Profit for American students