Company lists · Data refreshed September 2026

Top 25 International development organizations based in the United Kingdom

Name: International development organizations based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 321 companies tracked

RevenueBase identified 321 international development organizations headquartered in the United Kingdom as of September 2026 and tracks 13,093 professional contacts across them, including 2,782 with verified work emails. London is the largest hub.

This list covers international development organizations 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

321Companies

13,093Contacts tracked

2,782Verified emails

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The 25 largest international development organizations based in the United Kingdom

Ranked by team size

Top 25 of 321 international development organizations 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 organizations: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Adam Smith International	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	n/a	825 contacts →
	Partial evidence “Adam Smith International is a global advisory company that works locally to transform lives by making economies stronger, societies more stable, and governments more effective.” Source: RevenueBase Database · checked Sep 20, 2026
2	Oxford Policy Management	Strong evidence	Oxford, United KingdomHQ checked Sep 20, 2026	201-500	822 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
3	BBC Media Action	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	781 contacts →
	Indirect evidence “In a world where media can be divisive and untrustworthy, we believe in the power of media and communication to do good.” Source: RevenueBase Database · checked Sep 20, 2026
4	Human Appeal	Strong evidence	Cheshire, United KingdomHQ checked Sep 20, 2026	n/a	629 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
5	Practical Action	Strong evidence	Rugby, United KingdomHQ checked Sep 20, 2026	501-1,000	562 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
6	Crown Agents	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	475 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
7	Muslim Hands	Indirect evidence	Nottingham, United KingdomHQ checked Sep 20, 2026	201-500	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, 2026
8	Muslim AID UK	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	303 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
9	Joseph Rowntree Foundation JRF	Indirect evidence	York, United KingdomHQ checked Sep 20, 2026	501-1,000	248 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
10	International Institute For Environment And Development Iied	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	245 contacts →
	Strong evidence “The International Institute for Environment and Development (IIED) is a global leader in sustainable development.” Source: RevenueBase Database · checked Sep 20, 2026
11	Chemonics UK	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	168 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
12	Islamic Relief UK	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	148 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
13	International Growth Centre	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	135 contacts →
	Partial evidence “The International Growth Centre (IGC) works with policymakers in developing countries to promote inclusive and sustainable growth through pathbreaking research.” Source: RevenueBase Database · checked Sep 20, 2026
14	Development Pathways LTD	Indirect evidence	Sidcup, United KingdomHQ checked Sep 20, 2026	11-50	70 contacts →
	Indirect evidence “We are the leading global consultancy specialising in designing and developing social protection systems – one fundamental way that governments can guard people from poverty and…” Source: RevenueBase Database · checked Sep 20, 2026
15	Montrose	Strong evidence	Jersey, United KingdomHQ checked Sep 20, 2026	51-200	69 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
16	Triple Line	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	65 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
17	Manniondaniels	Partial evidence	Bath, United KingdomHQ checked Sep 20, 2026	51-200	57 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
18	IOD Parc	Indirect evidence	Sheffield, United KingdomHQ checked Sep 20, 2026	11-50	56 contacts →
	Indirect evidence “Incorporated in 1998 in the United Kingdom, IOD PARC is a private consulting company and a leading, global specialist-provider in results-based performance assessment in…” Source: RevenueBase Database · checked Sep 20, 2026
19	Bodhi Global Analysis	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	52 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
20	Bond UK	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	51 contacts →
	Strong evidence “Bond is the UK network for organisations working in international development.” Source: RevenueBase Database · checked Sep 20, 2026
21	Intrac	Indirect evidence	Oxford, United KingdomHQ checked Sep 20, 2026	11-50	50 contacts →
	Indirect evidence “INTRAC exists to strengthen the effectiveness of civil society to challenge poverty and inequality, empowering people to gain greater control over their own future.” Source: RevenueBase Database · checked Sep 20, 2026
22	World Sustainable Development Fund	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	47 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
23	Humanity First International	Partial evidence	Surbiton, United KingdomHQ checked Sep 20, 2026	501-1,000	45 contacts →
	Partial 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, 2026
24	Futuresense Foundation	Strong evidence	Newbury, United KingdomHQ checked Sep 20, 2026	11-50	42 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
25	CGA Technologies	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	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, 2026

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: international development organizations. 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 international development organizations.
Partial evidence: Its own public description names part of international development organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name international development organizations. 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 321 international development organizations based in the United Kingdom

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International development organizations based in the United Kingdom at a glance

As of Sep 20, 2026

21.2%Verified-email coverage

40.8Average contacts per company

1-10Median size (employees)

53.0%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

172

11-50

103

51-200

201-500

501-1,000

1,001-5,000

10001+

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 321 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 organizations, 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 organizations”. 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 organizations), 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 organizations, 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, 2,782 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 organizations by metro

International development organizations in London170

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 organizations, 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 organizations are there based in the United Kingdom?

RevenueBase identified 321 international development organizations 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?

Adam Smith International, headquartered in United Kingdom, tops this list with the largest team on record.

Which city has the most international development organizations?

London leads with 170 headquartered companies, followed by Cambridge (9) and Oxford (7).

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 2,782 verified decision-maker contacts tracked across these 321 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.