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Non-profit
Safe and Just Michigan is a left-of-center advocacy group that advocates for criminal justice and prison reform in Michigan. Leaders of Safe and Just Michigan have claimed that police started as slave patrols sent to capture runaways, that the “historical racial oppression” is embedded in modern police departments,
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Non-profit
Safe Horizon is a community advocacy group that provides support for victims of domestic violence as well as child abuse, sexual assault, human trafficking, and youth homelessness. 18
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Non-profit
Safety Net Defense Fund (SNDF) is a project of the left-of-center New Venture Fund that supports continued and increased funding of federal welfare and poor-assistance programs, including food stamps (known as Supplemental Nutrition Assistance Program (SNAP)), Obamacare, and Medicaid.
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Non-profit
Sagamore Institute is a think tank based in Indianapolis that aims to build and implement public policy solutions based on the values and geography of America’s heartland. Founded in 2004 by former U.S. Senator Dan Coats (R-IN) and Jay Hein, Sagamore uses research, consulting, and impact investing to achieve
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Non-profit
The Strengthening Accountability in the Global Economy (SAGE) Fund is a collaborative group for left-of-center foundations. The SAGE Fund is a project of the New Venture Fund, a 501(c)(3) funding and fiscal sponsorship nonprofit created and managed by the for-profit consultancy Arabella Advisors.
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Non-profit
The Sagner Family Foundation is a private foundation located in New York City. The organization was established in 2017, though it had charitable trust status as early as 1961. 61
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Non-profit
The Salk Institute for Biological Studies is a San Diego-based institution focused largely on biological and ecological research. Founded in 1963 by Jonas Salk, the creator of the inactivated polio vaccine, 69 the Salk Institution
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Non-profit
The Sall Family Foundation is a left-of-center grantmaking organization that supports environmentalist and conservationist organizations within the United States and the United Kingdom. 81 The Foundation has made contributions to organizations that seek to prevent the commercial development of
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Non-profit
Salmon for All is an environmentalist-aligned business league that promotes policies to benefit commercial fishing industries around the Columbia River region in the Pacific Northwest. The group has previously opposed legislation it claims would restrict the fishing industry in the region while promoting policies that would prevent water pollution.
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Non-profit
The Salt and Light Council is a nonprofit ministry that trains and equips churches to establish Salt and Light Biblical Citizenship Ministries in churches across the country to restore the biblical and moral foundations of America. The Salt and Light Council promotes constitutional and religious liberties, traditional marriage, and pro-life
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Non-profit
SalusWorld is a Non-Governmental Organization (NGO) that provides psychosocial consultation and mental health care for victims of human rights violations suffering from trauma and PTSD.
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Non-profit
The Samdhana Institute is a group of activists and practitioners focused on supporting indigenous peoples and local communities in Southeastern Asia on social and environmental issues, including land rights and governance of natural resources. The Institute has locations in the Philippines and Indonesia.
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Non-profit
The Samuel Roberts Noble Foundation is a private grantmaking organization that funds agricultural research at the Noble Research Institute and makes charitable grants to nonprofit organizations that support education, health, and communities, especially in Oklahoma. The Foundation aims to fund organizations that can address agricultural challenges, expand educational opportunities, improve
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Non-profit
The Samuel Rubin Foundation is a grantmaking foundation that supports organizations that focus on international peace efforts, such as the Arms Control Association; on expanding influence of left-of-center media, such as Democracy Now Productions; on LGBT advocacy, such as Global Action for Trans Equality; on left-of-center social advocacy,
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Non-profit
San Diego Coastkeeper is a left-of-center environmentalist advocacy group and member of the Waterkeeper Alliance. 156 The organization acts as a compliance watchdog for local, county, state, and federal environmentalist policy, using litigation to
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Non-profit
The San Diego Foundation (SDF) is a large left-of-center community foundation located in the San Diego, California area that as of 2025 controlled over $1.2 billion in assets and provided over $100 million per year in funding to a variety of organizations and charitable causes, including left-of-center advocacy groups such
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Non-profit
The San Diego Hospice Foundation is a health advocacy organization that supports and provides grantmaking activities for increased access to hospice care within San Diego County, California. 180
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Non-profit
The San Diego Organizing Project (SDOP) is a left-of-center, faith-based community advocacy organization consisting of approximately 30 congregations representing over 70,000 families in San Diego County. It works to train and develop civic leaders from the congregations and engage the communities in local social advocacy in support of issues including
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Non-profit
San Francisco AIDS Foundation (SFAF) is one of the largest and oldest community-based AIDS service organizations in the United States, formed in 1982 at the beginning of the AIDS epidemic.
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Non-profit
San Francisco Baykeeper (also known as Baykeeper) is a left-of-center activist group that promotes environmentalist campaigns with a focus on the San Francisco Bay Area. 222 Its primary uses investigations, activism, and
