Charities based in the United States

Distributed.net is a volunteer computing effort that is attempting to solve large scale problems using otherwise idle CPU or GPU time. It is governed by Distributed Computing Technologies, Incorporated (DCTI), a non-profit organization under U.S. tax code 501(c)(3).

Tostan (meaning "breakthrough" in Wolof) is a US-registered 501(c)(3) international non-governmental organization headquartered in Dakar, Senegal. The organization's mission is "to empower communities to develop and achieve their vision for the future and inspire large-scale movements leading to dignity for all" in several West African countries, including Senegal, Guinea, Guinea-Bissau, The Gambia, Mali, and Mauritania.

organization for outdoor book exchange boxes

American nonprofit organization providing mental health support to adult online entertainment industry performers

Hindu nationalist organization

nonprofit promoting alternatives to animal food products