Company lists · Data refreshed September 2026

Top 25 International development ngos based in the United Kingdom

RevenueBase identified 272 international development ngos headquartered in the United Kingdom as of September 2026 and tracks 10,621 professional contacts across them, including 2,190 with verified work emails. London is the largest hub.

This list covers international development 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
272Companies
10,621Contacts tracked
2,190Verified emails
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The 25 largest international development ngos based in the United Kingdom

Ranked by team size
Top 25 of 272 international development ngos based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to international development ngos: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceOxford, United KingdomHQ checked Sep 20, 2026201-500822 contacts →

Strong evidence

“We are an international development consultancy that works in partnership with leaders providing analytical and practical policy expertise through our global network to support…”

Source: RevenueBase Database · checked Sep 20, 2026
2Strong evidenceCheshire, United KingdomHQ checked Sep 20, 2026n/a629 contacts →

Strong 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, 2026
3Strong evidenceRugby, United KingdomHQ checked Sep 20, 2026501-1,000562 contacts →

Strong 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, 2026
4Strong evidenceLondon, United KingdomHQ checked Sep 20, 2026501-1,000475 contacts →

Strong evidence

“Crown Agents is an international development organisation that works with leaders across the globe to accelerate self-sufficiency and prosperity.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceNottingham, United KingdomHQ checked Sep 20, 2026201-500450 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, 2026
6Partial evidenceOxford, United KingdomHQ checked Sep 20, 202651-200332 contacts →

Partial evidence

“Windle Trust International (WTI) is a specialist education organisation.”

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceLondon, United KingdomHQ checked Sep 20, 2026501-1,000303 contacts →

Partial 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, 2026
8Indirect evidenceYork, United KingdomHQ checked Sep 20, 2026501-1,000248 contacts →

Indirect evidence

“We are an independent social change organisation, working to support and speed up the transition to a more equitable and just future, free from poverty, where people and planet…”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceLondon, United KingdomHQ checked Sep 20, 2026501-1,000202 contacts →

Indirect evidence

“Pharo Foundation is a dynamic self-reliant non-profit organisation committed to fostering self-sufficiency in Africa.”

Source: RevenueBase Database · checked Sep 20, 2026
10Strong evidenceLondon, United KingdomHQ checked Sep 20, 202651-200168 contacts →

Strong 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, 2026
11Partial evidenceLondon, United KingdomHQ checked Sep 20, 202651-200148 contacts →

Partial 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, 2026
12Indirect evidenceLondon, United KingdomHQ checked Sep 20, 202651-200123 contacts →

Indirect evidence

“Founded in 2007 by His Majesty King Charles and British Asian entrepreneurs, the British Asian Trust tackles poverty and inequality in South Asia.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceWest End, United KingdomHQ checked Sep 20, 202611-5078 contacts →

Indirect evidence

“Humanitarian Operations (HOPE) is a charitable organization dedicated to improving access to essential educational services in underprivileged communities worldwide.”

Source: RevenueBase Database · checked Sep 20, 2026
14Strong evidenceJersey, United KingdomHQ checked Sep 20, 202651-20069 contacts →

Strong evidence

“Montrose is an international development consultancy and project management company providing services to bilateral and multi-lateral development agencies, non-governmental…”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 20, 202611-5065 contacts →

Indirect evidence

“People, Planet, Prosperity: we work to enrich people's lives by protecting the planet and improving human, social, economic and environmental sustainability.”

Source: RevenueBase Database · checked Sep 20, 2026
16Partial evidenceManchester, United KingdomHQ checked Sep 20, 20261,001-5,00059 contacts →

Partial 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, 2026
17Partial evidenceBath, United KingdomHQ checked Sep 20, 202651-20057 contacts →

Partial 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, 2026
18Strong evidenceLondon, United KingdomHQ checked Sep 20, 202611-5052 contacts →

Strong evidence

“Bodhi Global Analysis is a women-led international development research firm delivering evaluations, conflict and political economy analyses, and gender and inclusion research…”

Source: RevenueBase Database · checked Sep 20, 2026
19Strong evidenceLondon, United KingdomHQ checked Sep 20, 202611-5051 contacts →

Strong evidence

“Bond is the UK network for organisations working in international development.”

Source: RevenueBase Database · checked Sep 20, 2026
20Strong evidenceLondon, United KingdomHQ checked Sep 20, 202611-5047 contacts →

Strong evidence

“The World Sustainable Development Fund (WSDF) is a pioneering international organization committed to driving positive global change through sustainable development initiatives.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceManchester, United KingdomHQ checked Sep 20, 202611-5044 contacts →

Indirect evidence

“We are READ Foundation, a non-profit organisation dedicated to providing school places for children living in poverty who otherwise cannot afford to become educated.”

Source: RevenueBase Database · checked Sep 20, 2026
22Strong evidenceNewbury, United KingdomHQ checked Sep 20, 202611-5042 contacts →

Strong 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, 2026
23Indirect evidenceLondon, United KingdomHQ checked Sep 20, 202611-5041 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, 2026
24Partial evidenceHalesowen, United KingdomHQ checked Sep 20, 202651-20036 contacts →

Partial evidence

“Travis Baker was established in 2006 to provide a high quality consultancy, concentrated on the development sector.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceLondon, United KingdomHQ checked Sep 20, 2026n/a31 contacts →

Indirect evidence

“FHI 360 UK is the wholly owned UK subsidiary of FHI 360, In addition to supporting the full range of FHI 360 services, particularly in education and health systems strengthening…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 272 international development ngos based in the United Kingdom

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International development ngos based in the United Kingdom at a glance

As of Sep 20, 2026
20.6%Verified-email coverage
39.0Average contacts per company
1-10Median size (employees)
48.5%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
157
11-50
69
51-200
25
201-500
10
501-1,000
9
1,001-5,000
1

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 272 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 international development 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 “international development 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 international development 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 international development 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, 2,190 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.

International development ngos by metro

  • International development ngos in London132

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 international development 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 international development ngos are there based in the United Kingdom?

RevenueBase identified 272 international development 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?

Oxford Policy Management, headquartered in Oxford, tops this list with the largest team on record.

Which city has the most international development ngos?

London leads with 132 headquartered companies, followed by Birmingham (9) and Manchester (9).

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 2,190 verified decision-maker contacts tracked across these 272 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.