Company lists · Data refreshed November 2026

Top 25 Advocacy nonprofits worldwide

Name: Advocacy nonprofits worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 11,101 companies tracked

RevenueBase identified 11,101 company matches for advocacy nonprofits worldwide as of November 2026 and tracks 170,447 professional contacts across them, including 44,002 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers company matches for advocacy nonprofits worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for advocacy nonprofits follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

11,101Companies

170,447Contacts tracked

44,002Verified emails

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The 25 largest advocacy nonprofits worldwide

Ranked by team size

Top 25 of 11,101 company matches for advocacy nonprofits worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Child Advocates SAN Antonio Casa	Exact match	San Antonio, TX, United StatesHQ recorded Nov 6, 2026	n/a	9,902 contacts →
	Exact match “The mission of Child Advocates San Antonio (CASA) is to recruit, develop, and lead highly impactful court appointed volunteer Advocates who provide constancy and support for…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Easterseals	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	n/a	3,680 contacts →
	Exact match “Easterseals is a national nonprofit providing expert caregiving and support services across disabilities and stages of life.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Amnesty International	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	2,726 contacts →
	Exact match “Amnesty International is a global movement of more than 10 million people who take injustice personally.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Ahrc NEW York City	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,237 contacts →
	Exact match “AHRC New York City is a Chapter of The Arc New York.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	SCOPE	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,985 contacts →
	Exact match “We’re Scope, the UK's leading disability equality charity, creating equal futures with disabled people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	ACCEM	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	1,001-5,000	1,800 contacts →
	Exact match “Accem es una organización sin ánimo de lucro y de ámbito estatal, cuya misión es la defensa de los derechos fundamentales, la atención y el acompañamiento a las personas que se…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Housing Works	Exact match	New York, United StatesHQ recorded Nov 6, 2026	501-1,000	1,419 contacts →
	Exact match “Born out of the AIDS crisis in New York City, Housing Works is a healing community that fights for inclusive care, social justice, and an end to homelessness.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Kern County Superintendent Of Schools	Exact match	Bakersfield, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,324 contacts →
	Exact match “As advocates for children, we provide leadership, education and support for students, school districts and the community through programs, services and fiscal accountability.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Heartland Alliance	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,275 contacts →
	Exact match “Heartland Alliance-a leading human-rights organization- believes that everyone benefits when people who experience disparities are able to exit poverty, heal from trauma, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Sierra Club	Exact match	Oakland, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,156 contacts →
	Exact match “At the Sierra Club, we believe in the power of togetherness.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Services For The Underserved	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,154 contacts →
	Exact match “Services for the UnderServed (S:US) believes every New Yorker has the right to lead a life of purpose.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	CASA	Exact match	Hyattsville, MD, United StatesHQ recorded Nov 6, 2026	n/a	1,015 contacts →
	Exact match “CASA’s mission is to create a more just society by building power and improving the quality of life in working class and immigrant communities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Open Society Foundations	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	939 contacts →
	Exact match “The Open Society Foundations work to build vibrant and inclusive democracies whose governments are accountable to their people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	The Borgen Project	Exact match	Tacoma, WA, United StatesHQ recorded Nov 6, 2026	n/a	901 contacts →
	Exact match “The Borgen Project believes that leaders of the most powerful nation on earth should be doing more to address global poverty.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Helpage India	Exact match	Delhi, IndiaHQ recorded Nov 6, 2026	501-1,000	832 contacts →
	Exact match “HelpAge India is secular, not-for-profit organization registered under the Societies' Registration Act of 1860.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Uniting Vic.Tas	Exact match	Melbourne, AustraliaHQ recorded Nov 6, 2026	1,001-5,000	824 contacts →
	Exact match “People are important and change is possible.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Shine Lawyers	Exact match	Brisbane, AustraliaHQ recorded Nov 6, 2026	501-1,000	808 contacts →
	Exact match “At Shine, we don't judge you or where you came from.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Oxfam Novib	Exact match	The Hague, NetherlandsHQ recorded Nov 6, 2026	201-500	753 contacts →
	Exact match “Wij strijden voor gelijkheid en we staan achter de mensen die opstaan voor gelijkheid.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Leigh DAY	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	735 contacts →
	Exact match “Leigh Day is a law firm established to combat injustice.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Independent Sector	Exact match	Washington, DC, United StatesHQ recorded Nov 6, 2026	n/a	649 contacts →
	Exact match “Independent Sector is the national membership organization that connects, strengthens, and advocates for nonprofits and philanthropies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Enable	Exact match	Motherwell, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	605 contacts →
	Exact match “Founded in 1954, Enable has been supporting people to live independently in the community of their choice for more than 7 decades.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	ISSI	Exact match	Washington, DC, United StatesHQ recorded Nov 6, 2026	n/a	555 contacts →
	Exact match “ISSI is a not-for-profit corporation established in August 2007 in Washington, DC.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	The Outreach Team	Exact match	Ithaca, NY, United StatesHQ recorded Nov 6, 2026	201-500	523 contacts →
	Exact match “The Outreach Team is a national consulting firm working to make the world a better place.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Fundación DFA	Exact match	Zaragoza, SpainHQ recorded Nov 6, 2026	501-1,000	478 contacts →
	Exact match “Fundación Dfa es la entidad más veterana y representativa de personas con discapacidad en Aragón.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Iraq And Afghanistan Veterans Of America Iava	Exact match	Washington, DC, United StatesHQ recorded Nov 6, 2026	n/a	444 contacts →
	Exact match “Stand up, join the fight and make your voice heard: https://bit.ly/3DqMqOk Everyday Iraq and Afghanistan Veterans of America advocates on behalf of all veterans.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “advocacy nonprofits”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 11,101 advocacy nonprofits worldwide

See the full list, filter by size, metro and specialty, and access 44,002 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Advocacy nonprofits worldwide at a glance

As of Nov 6, 2026

25.8%Verified-email coverage

15.4Average contacts per company

1-10Median size (employees)

4.4%Largest-city concentration · Washington

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

6,930

11-50

2,978

51-200

760

201-500

201

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for advocacy nonprofits are linked below.
What qualifies: Company records worldwide whose business descriptions match “advocacy nonprofits” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 44,002 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Advocacy nonprofits by location

71 lists · largest first

Every Advocacy nonprofits list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “advocacy nonprofits”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many advocacy nonprofits are there worldwide?

RevenueBase identified 11,101 company matches for advocacy nonprofits worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Child Advocates SAN Antonio Casa tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most advocacy nonprofits?

The United States leads with 5,081 companies, followed by India (344) and the United Kingdom (319). Every advocacy nonprofits list by country and city is linked on this page.

Which city has the most advocacy nonprofits?

Washington leads with 484 company records, followed by New York (229) and Los Angeles (132).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 44,002 professional contacts with verified work emails tracked across these 11,101 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.