Company lists · Data refreshed September 2026
Top 25 Ngos based in the United Kingdom
RevenueBase identified 201 ngos headquartered in the United Kingdom as of September 2026 and tracks 37,998 professional contacts across them, including 7,024 with verified work emails. London is the largest hub.
This list covers ngos headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest ngos based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 12,037 contacts → | ||||
Indirect evidence “World Vision is the largest child-focused private charity in the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 7,703 contacts → | ||||
Indirect evidence “Plan International is an independent development and humanitarian organisation that stands with girls to tear down barriers, save lives and build a world where equality for girls…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 7,001 contacts → | ||||
Indirect evidence “Oxfam is a vibrant global movement of dedicated people fighting poverty - together.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,185 contacts → | ||||
Indirect evidence “Looking to work for a charity that has Jesus at its heart?” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 629 contacts → | ||||
Indirect evidence “Human Appeal is a UK-based international humanitarian and development organisation delivering life-saving aid and sustainable development programmes in over 30 countries across…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 562 contacts → | ||||
Indirect evidence “We are an international development organisation putting ingenious ideas to work so people in poverty can change their world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 458 contacts → | ||||
Indirect evidence “We are the official Catholic aid agency for England and Wales.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 450 contacts → | ||||
Indirect evidence “In 1993, a community in Nottingham, moved by the devastation of the Bosnian war, sprang into action.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 303 contacts → | ||||
Indirect evidence “Muslim Aid is an International Not-For-Profit providing support to communities around the world affected by disasters, conflict or endemic poverty without regard to their social…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 214 contacts → | ||||
Indirect evidence “Afghanaid is a British humanitarian and development organisation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 198 contacts → | ||||
Indirect evidence “We are Action For Humanity.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 168 contacts → | ||||
Indirect evidence “Chemonics UK is a leader in global sustainable development and part of Chemonics International's global network of specialists.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 156 contacts → | ||||
Indirect evidence “Who We Are WATAN is a leading Civil Society Organization delivering emergency relief, third sector support and long-term international development projects.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 148 contacts → | ||||
Indirect evidence “Whoever saved a life, it would be as if they saved the life of all mankind."(Qur'an 5:32) Islamic Relief is an international non-governmental organisation (INGO) founded in the UK…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 136 contacts → | ||||
Indirect evidence “Start Network is a global network of non-governmental organisations, made up of more than 80 national and international aid agencies from five continents.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 101 contacts → | ||||
Indirect evidence “Human Relief Foundation is an international charity with over thirty years of experience successfully delivering humanitarian aid and positive outcomes to communities whose lives…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 63 contacts → | ||||
Indirect evidence “International Rescue Committee UK is a company based out of 3 Bloomsbury Place, London, United Kingdom.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 59 contacts → | ||||
Indirect evidence “Minhaj Welfare Foundation is one of the largest non-government international charity organisation’s in the world, with a growing network of branches and projects in various…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 57 contacts → | ||||
Indirect evidence “MannionDaniels is a global development consultancy and fund manager with operational bases in the United Kingdom, Kenya, Nigeria and Cyprus.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 45 contacts → | ||||
Indirect evidence “Our Mission Humanity First is an international charitable trust established to promote and safeguard the preservation of human life and dignity.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 42 contacts → | ||||
Indirect evidence “The FutureSense Foundation is a small international development charity supporting rural, underserved communities across Thailand, Cambodia, Nepal, India, Tanzania, Panama…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 41 contacts → | ||||
Indirect evidence “We work to deliver national-scale, sustainable change in fragile and poor countries; we do that by increasing participation and achievement in education, and through at-scale cash…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 38 contacts → | ||||
Indirect evidence “Fields of Life is a Christian International Development organisation with twenty five years of experience of working in East Africa.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 37 contacts → | ||||
Indirect evidence “Muslim Charity is a leading international relief and development organisation which works to alleviate human suffering around the world and is dedicated in helping the needy…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 35 contacts → | ||||
Indirect evidence “The World Federation of KSIMC is an NGO in special consultative status with the economic and social council (ECOSOC) of the United Nations.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: ngos. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names ngos.
- Partial evidence
- Its own public description names part of ngos, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name ngos. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 201 ngos based in the United Kingdom
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Ngos based in the United Kingdom at a glance
As of Sep 20, 2026Companies by employee count
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 201 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among ngos, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United Kingdom whose own description of what they do matches “ngos”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names ngos), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among ngos, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 7,024 across the full list. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Ngos by metro
- Ngos in London89
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names ngos, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many ngos are there based in the United Kingdom?
RevenueBase identified 201 ngos headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
World Vision, headquartered in Uxbridge, tops this list with the largest team on record.
Which city has the most ngos?
London leads with 89 headquartered companies, followed by Birmingham (11) and Leicester (6).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 7,024 verified decision-maker contacts tracked across these 201 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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 Smart Search, 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.