Religions for Peace USA receives support from a mix of sources, including: religious communities, private donors, and foundations.
Among the historic and present contributors from the foundation world are:
| Name | Link |
| The Rockefeller Foundation | http://www.rockefellerfoundation.org/our-focus |
| The UN Foundation | http://www.unfoundation.org/ |
| UNICEF | http://www.unicef.org/ |
| Stanley Foundation | http://www.stanleyfoundation.org/ |
| Better World Foundation | http://www.abetterworld.org/ |
| The David and Barbara B. Hirschhorn Foundation | http://www.blaufund.org/foundations/davidandbarbara_f.html |
| The Henry Luce Foundation | https://www.hluce.org/ |
| The Willam and Mary Greve Foundation | http://www.wmgreve.org/ |
| The El-Hibri Charitable Foundation. | http://elhibrifoundation.org/ |