Publishers
- Albion Community Foundation
- Alfred P. Sloan Foundation
- Alice Paul Institute
- ALIGN: The Alliance For a Greater New York
- All-ages Movement Project, a project of Tides Center
- Alliance for a Green Revolution in Africa (AGRA)
- Alliance for a Just Rebuilding
- Alliance for Educational Justice
- Alliance for Excellent Education
- Alliance for Justice
- Alliance for Quality Education
- Alliance of Funds
- Altarum Institute
- Alternatives to Marriage Project
- Alzheimers Association
- America Healing
- America's Promise Alliance
- American Academy of Arts and Sciences
- American Academy of Pediatrics
- American Anthropological Association
