Company lists · Data refreshed September 2026

Top 25 Advocacy organizations based in the United Kingdom

RevenueBase identified 173 company matches for advocacy organizations associated with the United Kingdom as of September 2026 and tracks 7,450 professional contacts across them, including 2,036 with verified work emails. London is the largest hub.

This list covers company matches for advocacy organizations associated with the United Kingdom, 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 September 19, 2026.

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 Sep 19, 2026 How this list was built
173Companies
7,450Contacts tracked
2,036Verified emails
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The 25 largest advocacy organizations based in the United Kingdom

Ranked by team size
Top 25 of 173 company matches for advocacy organizations based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 19, 20261,001-5,0002,644 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 · Sep 19, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 19, 20261,001-5,0001,628 contacts →

Exact match

“We’re Scope, creating equal futures with disabled people.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 19, 2026501-1,000748 contacts →

Exact match

“Leigh Day is a law firm established to combat injustice.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 19, 2026201-500318 contacts →

Exact match

“Amnesty International UK: fighting for human rights across the UK and beyond.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchStevenage, United KingdomHQ recorded Sep 19, 2026201-500218 contacts →

Exact match

“POhWER was established in Hertfordshire in 1996 by service users who had successfully supported each other in addressing injustice and social exclusion.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 19, 202651-200173 contacts →

Exact match

“We are the UK’s biggest, most diverse, and most effective people-powered alliance.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchGlasgow, United KingdomHQ recorded Sep 19, 202651-200108 contacts →

Exact match

“Who Cares?”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchDewsbury, United KingdomHQ recorded Sep 19, 2026201-50078 contacts →

Exact match

“We provide person centred advocacy services for people with mental health needs, people with learning disabilities, people with physical or sensory impairments, acquired brain…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchHastings, United KingdomHQ recorded Sep 19, 202651-20078 contacts →

Exact match

“As an independent charity, all of the services we provide are free and confidential.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 19, 202651-20070 contacts →

Exact match

“We get the voices of care experienced children and young people heard.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchHackney, United KingdomHQ recorded Sep 19, 202611-5064 contacts →

Exact match

“Leaders Unlocked is a not-for-profit organisation that enables young people and underrepresented groups to have a stronger voice on the issues that aect their lives.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5052 contacts →

Exact match

“We use the law to enforce the rights of the disadvantaged of society, hold the state to account for its actions, challenge discrimination and fight human rights and environmental…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5051 contacts →

Exact match

“38 Degrees is made up of more than 2 million people from all walks of life across the UK.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5050 contacts →

Exact match

“The Sport and Recreation Alliance believes that the power of sport and recreation can change lives and bring communities together.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchAccrington, United KingdomHQ recorded Sep 19, 202651-20048 contacts →

Exact match

“Our charity has been delivering best practice health and social care advocacy from its Lancashire base since 1998.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5047 contacts →

Exact match

“Disability Rights UK works through campaigning and policy work to remove the barriers that are disabling in society.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 19, 202651-20040 contacts →

Exact match

“Our vision is a world in which everyone has a voice.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchWinchester, United KingdomHQ recorded Sep 19, 202611-5031 contacts →

Exact match

“Whether it’s a large charity, a small lunch club, or a social enterprise, we enable and inspire people, organisations and communities to be the best they can be!”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchEdinburgh, United KingdomHQ recorded Sep 19, 202611-5030 contacts →

Exact match

“An independent advocacy organisation based in Edinburgh, dedicated to empowering individuals with mental health challenges and those affected by problematic substance use.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 19, 20261-1030 contacts →

Exact match

“TotalAccess |#AccessibAll AccessibAll has established itself as the leading voice on access and inclusion within sport.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5029 contacts →

Exact match

“Ekō (formerly SumOfUs) is a community of people from around the world committed to curbing the growing power of corporations.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchRemote, United KingdomHQ recorded Sep 19, 20261-1027 contacts →

Exact match

“Pregnant Then Screwed protects, supports and promotes the rights of mothers who suffer the effects of systemic, cultural, and institutional discrimination through our various…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchGateshead, United KingdomHQ recorded Sep 19, 202611-5026 contacts →

Exact match

“Your Voice Counts is a charity that works across the North East to provide support to people with learning disabilities, autistic people and people who are at risk of exclusion…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5025 contacts →

Exact match

“The Free Speech Union is a non-partisan, mass-membership public interest body that stands up for the speech rights of its members.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5024 contacts →

Exact match

“CRIN is a creative human rights organisation focused on children's rights.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 173 advocacy organizations based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,036 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Advocacy organizations based in the United Kingdom at a glance

As of Sep 19, 2026
27.3%Verified-email coverage
43.1Average contacts per company
1-10Median size (employees)
35.3%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
106
11-50
46
51-200
14
201-500
4
501-1,000
1
1,001-5,000
2

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 173 companies.

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.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “advocacy organizations” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 2,036 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 September 19, 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 organizations by metro

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 organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many advocacy organizations are there based in the United Kingdom?

RevenueBase identified 173 company matches for advocacy organizations associated with the United Kingdom as of September 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?

Amnesty International tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most advocacy organizations?

London leads with 61 company records, followed by Edinburgh (5) and Leeds (3).

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 2,036 professional contacts with verified work emails tracked across these 173 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 September 19, 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.