501(c)(3) organization
type of nonprofit organization in the United States exempt from federal income tax
GRID Alternatives
Brain Preservation Foundation
Little League Baseball
Jackie Robinson Foundation
Public Accountability Initiative
Jewish Community Center
Journalism Education Association
Judge Rotenberg Center
Keep A Breast Foundation
Knowledge Is Power Program
Ladies of Liberty Alliance
Center for Inquiry
Baby2Baby
Sleep in Heavenly Peace
Sure We Can
Texan by Nature
Leukemia & Lymphoma Society
National Center on Sexual Exploitation
Living Beyond Breast Cancer
Living Tongues Institute for Endangered Languages
Logan University
Vote.org
Love146
Military Religious Freedom Foundation
Software in the Public Interest
Multidisciplinary Association for Psychedelic Studies
Music Teachers National Association
National Association of Insurance Commissioners
National Brain Tumor Society
National Committee for Quality Assurance
Evident Change
National Crime Prevention Council
National Eating Disorders Association
National Federation of State High School Associations
National Fenestration Rating Council
National Forest Foundation
National Muzzle Loading Rifle Association
National Network to End Domestic Violence
National Physicians Alliance
National Postdoctoral Association
National Smokejumper Association
National Volunteer Fire Council
New Jersey Museum of Transportation
New York Mycological Society
Operation Homefront
Oregon Community Foundation
Orlando Health
Passion Conferences
City Bureau
Ploughshares Fund