The United Automobile, Aerospace and Agricultural Implement Workers of America International Union—also known as the United Automobile Workers (UAW)–is a labor union mainly comprised of American automobile manufacturing employees but that also includes unionized casino and higher education workers.

Humane Society of the United States (HSUS) is a large left-of-center animal liberation and vegetarianism advocacy nonprofit. Founded in 1954, HSUS lobbies to end cruelty to animals and for an end to human use of animals for food and fiber.

Also see the 501(c)(4) Community Change Action (nonprofit) Community Change (formerly the Center for Community Change or CCC) is a left-of-center nonprofit that focuses on issues of poverty, race, housing policy, and the treatment of released prisoners.  It also promotes the interests of immigrants, including illegal immigrants. Its affiliated 501(c)(4),

The American Federation of Labor-Congress of Industrial Organizations (AFL-CIO) is the largest federation of labor unions in the United States. Formed in 1955 in a merger between the American Federation of Labor and the Congress of Industrial Organizations, the AFL-CIO boasts membership of over 9 million voting members and 3

Mass General Brigham Incorporated is a nonprofit hospital and health-care system headquartered in Boston, Massachusetts. The organization operates the largest health system in New England and includes several notable hospitals such as Massachusetts General Hospital and Brigham and Women’s Hospital. Originally called Partners HealthCare, the system rebranded in 2019. Mass

GreenRoots is a left-of-center environmental advocacy and community organizing nonprofit based in Chelsea, Massachusetts, but also active in East Boston. The group seeks to push its vision of climate and environmental justice by engaging with the “BIPOC communities of Chelsea and East Boston” to act.

Center for Economic Democracy (CED) is a radical-left nonprofit in Boston that espouses local community economic control, favors certain racial and ethnic groups in hiring practices, espouses that capitalism is wrong, and wants to re-make the country post-capitalism. CED has called for wealth redistribution, advanced the notion the country continues

The Asian American Resource Workshop is a left-of-center advocacy organization located in Boston that advocates for far-left public policy and social issues in the greater Boston area and at the national level. The organization was founded in 1979 as a local community organizing group for Asian Americans in the Boston

Unmasking Fidelity is a far-left advocacy campaign that opposes privacy and anonymity for donors to right-leaning nonprofits, a free speech provision protected by the First Amendment to the U.S. Constitution and upheld by the U.S. Supreme Court. Unmasking Fidelity is a coalition of multiple center- and far-left activist nonprofits, including

The Brazilian Worker Center is a left-of-center advocacy organization focusing on illegal immigrant-related labor law, gender issues, and other issues concerning expansionist immigration policies. The organization is fiscally supported by a number of labor-union aligned organizations and works to promote labor organizing with workers in Boston, Massachusetts and multiple cities

Not to be confused with the San Francisco, California-based organization of the same name. The Chinese Progressive Association (CPA; formerly Chinatown People’s Progressive Association) is a Boston-based left-of-center organization that engages in community organizing and activism among Chinese-Americans in Massachusetts. The organization has hosted events with consular officials of

Muslim Justice League (MJL) is a left-of-center advocacy group primarily focused on opposition to police power in Massachusetts and federal programs targeted at suppressing radical Islamist extremism. Though focused on issues specific to American Muslims, the organization supports wider left-of-center policy goals. Opposition to “Countering Violent Extremism” Programs Muslim Justice

Amalgamated Transit Union (ATU) is an international labor union with more than 200,000 members across the transportation sector. Its members include bus drivers, light rail operators, maintenance workers, and baggage handlers. It operates 252 chapters in the U.S. and Canada, including operations in 44 states and Washington, D.C., and is

Resource Generation (RG) is a left-of-center organization which organizes and encourages wealthy young people to “devote a portion of their financial assets to left-of-center causes.”

PowerSwitch Action, formerly known as Partnership for Working Families (PWF), is a national coalition of left-of-center nonprofits which support policies that redistribute wealth and grant preferential treatment to workers. The organization focuses its efforts on municipal governments which are most sympathetic to its policy goals and actively opposes state and

The Cobalt Foundation (formerly the NARAL Pro-Choice Colorado Foundation) is a left-of-center advocacy group that promotes expanded access to abortion in Colorado. The group engages in policy advocacy at the state level, operates the Cobalt Abortion Fund that provides financial assistance for abortions and related travel costs, and supports community

The Council of Southeast Pennsylvania is a nonprofit organization dedicated to addiction recovery. It offers addiction screening services and connects addicts to counseling services. It also connects currently and formerly incarcerated addicts with addiction treatment programs and counseling services.

Sustainable Northwest is a conservation and environmentalist advocacy nonprofit based in Portland, Oregon. Sustainable Northwest supports regenerative ranching, sustainable wood markets, water conservation, forest conservation, and weather-dependent energy. 364 Sustainable Northwest receives funding from government

SEIU Local 500 is a local union of the Service Employees International Union (SEIU) representing government and nonprofit employees in Maryland and Washington, D.C., including employees of the Democratic National Committee (DNC), Media Matters for America, People for the American Way, Planned Parenthood Federation of America,

The Missouri Workers Center (MWC) is a labor union-affiliated advocacy group that promotes left-of-center public policy in Missouri. 397 It engages in community and labor organizing, public advocacy, voter registration, and