Company lists · Data refreshed September 2026

Top 25 Peacebuilding nonprofits based in the United Kingdom

Name: Peacebuilding nonprofits based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 110 companies tracked

RevenueBase identified 110 peacebuilding nonprofits headquartered in the United Kingdom as of September 2026 and tracks 1,545 professional contacts across them, including 567 with verified work emails. London is the largest hub.

This list covers peacebuilding nonprofits 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 17, 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 17, 2026 86% judged on-target in blind review

110Companies

1,545Contacts tracked

567Verified emails

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The 25 largest peacebuilding nonprofits based in the United Kingdom

Ranked by team size

Top 25 of 110 peacebuilding nonprofits based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to peacebuilding nonprofits: 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	International Alert	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	303 contacts →
	Indirect evidence “International Alert works with people directly affected by conflict to build lasting peace.” Source: RevenueBase Database · checked Sep 17, 2026
2	Chemonics UK	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	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 17, 2026
3	Saferworld	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	162 contacts →
	Indirect evidence “Saferworld is an independent international organisation working to prevent violent conflict and build safer lives.” Source: RevenueBase Database · checked Sep 17, 2026
4	Conciliation Resources	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	99 contacts →
	Indirect evidence “Conflict is difficult, complex and political.” Source: RevenueBase Database · checked Sep 17, 2026
5	Aegis Trust	Indirect evidence	Newark, United KingdomHQ checked Sep 17, 2026	51-200	63 contacts →
	Indirect evidence “Aegis Trust is a world leading organisation in building peace and the prevention of mass atrocities.” Source: RevenueBase Database · checked Sep 17, 2026
6	Co-Operation Ireland	Indirect evidence	Belfast, United KingdomHQ checked Sep 17, 2026	11-50	55 contacts →
	Indirect evidence “Co-operation Ireland is an all-island peace building charity.” Source: RevenueBase Database · checked Sep 17, 2026
7	Concordis International	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	55 contacts →
	Partial evidence “Concordis International is a peacebuilding charity.” Source: RevenueBase Database · checked Sep 17, 2026
8	Partnership Brokers Association	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	n/a	35 contacts →
	Indirect evidence “Partnership Brokers Association Building capacity for innovation, efficiency and excellence in multi-stakeholder collaboration.” Source: RevenueBase Database · checked Sep 17, 2026
9	The Partnering Initiative TPI	Indirect evidence	Oxford, United KingdomHQ checked Sep 17, 2026	11-50	33 contacts →
	Indirect evidence “The Partnering Initiative, is a pioneering global NGO, dedicated to systematizing and professionalizing multi-sector partnerships for transformational sustainable development.” Source: RevenueBase Database · checked Sep 17, 2026
10	Crisis Action	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	30 contacts →
	Indirect evidence “Crisis Action is an award winning NGO that works behind the scenes to forge global coalitions among organisations and individuals to engage governments to prevent armed conflicts…” Source: RevenueBase Database · checked Sep 17, 2026
11	United Nations Association - UK	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	1-10	29 contacts →
	Indirect evidence “We build movements, deliver expert insight, and design campaigns to inspire a global community united in its pursuit of equality, sustainability, and peace.” Source: RevenueBase Database · checked Sep 17, 2026
12	Peaceful Change Initiative	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	25 contacts →
	Partial evidence “Peaceful Change initiative is a peacebuilding organisation striving for a world free from violent conflict.” Source: RevenueBase Database · checked Sep 17, 2026
13	International Communities Organisation	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	1-10	21 contacts →
	Indirect evidence “ICO believes communities can come together and achieve a peace, based not one group’s views prevailing over another, but by constructing a shared vision for a better future.We are…” Source: RevenueBase Database · checked Sep 17, 2026
14	The Corrymeela Community	Indirect evidence	Ballycastle, United KingdomHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence “Corrymeela is Northern Ireland’s oldest peace and reconciliation organisation.” Source: RevenueBase Database · checked Sep 17, 2026
15	ST Ethelburga's Centre For Reconciliation And Peace	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “Bridging divides, loving Earth St Ethelburga’s work sits at the intersection of climate and peace.” Source: RevenueBase Database · checked Sep 17, 2026
16	TIM Parry Johnathan Ball Foundation	Indirect evidence	Warrington, United KingdomHQ checked Sep 17, 2026	11-50	10 contacts →
	Indirect evidence “Tim Parry Johnathan Ball Foundation is a charity that works nationally and internationally for non-violent conflict resolution.” Source: RevenueBase Database · checked Sep 17, 2026
17	Academy Of Professional Dialogue	Indirect evidence	Chipping Campden, United KingdomHQ checked Sep 17, 2026	1-10	10 contacts →
	Indirect evidence “Academy of Professional Dialogue: An International non-profit charity, developing the profession in service of the wellbeing of society.” Source: RevenueBase Database · checked Sep 17, 2026
18	Rose Castle Foundation	Indirect evidence	Carlisle, United KingdomHQ checked Sep 17, 2026	1-10	9 contacts →
	Indirect evidence “Rose Castle Foundation is an international centre for peace and reconciliation, based at the 800-year old Rose Castle on the edge of the Lake District National Park.” Source: RevenueBase Database · checked Sep 17, 2026
19	The Portland Trust	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “The Portland Trust was established to promote peace and stability between Israelis and Palestinians through economic development.” Source: RevenueBase Database · checked Sep 17, 2026
20	Inter Mediate	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	8 contacts →
	Indirect evidence “Inter Mediate is a non-profit organisation operating out of London to support peace processes and dialogue channels in some of the world’s hardest conflict zones.” Source: RevenueBase Database · checked Sep 17, 2026
21	Tides Training And Consultancy	Indirect evidence	Belfast, United KingdomHQ checked Sep 17, 2026	1-10	8 contacts →
	Indirect evidence “TIDES Training & Consultancy is a national award winning, ethically based non-profit, charitable organisation.” Source: RevenueBase Database · checked Sep 17, 2026
22	Demilitarise Education	Indirect evidence	Manchester, United KingdomHQ checked Sep 17, 2026	1-10	8 contacts →
	Indirect evidence “Demilitarise Education (dED/@dED_UCATION) is a community & guide for modern day peacemakers, working to see universities break their ties with the global arms trade and instead…” Source: RevenueBase Database · checked Sep 17, 2026
23	Chips Christian International Peace Service	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence “CHIPS are Christian peacemakers.” Source: RevenueBase Database · checked Sep 17, 2026
24	Firefly International	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence “Firefly International supports locally‐led projects in conflict and post-conflict regions that create safe, supportive and inclusive spaces for young people to learn, thrive and…” Source: RevenueBase Database · checked Sep 17, 2026
25	The SIR Bobby Charlton Foundation	Indirect evidence	Manchester, United KingdomHQ checked Sep 17, 2026	1-10	6 contacts →
	Indirect evidence “The Sir Bobby Charlton Foundation is a UK registered charity (no.1140911) that was founded in 2011 by football legend Sir Bobby Charlton.” Source: RevenueBase Database · checked Sep 17, 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: peacebuilding nonprofits. 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 peacebuilding nonprofits.
Partial evidence: Its own public description names part of peacebuilding nonprofits, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name peacebuilding nonprofits. 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 110 peacebuilding nonprofits based in the United Kingdom

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Peacebuilding nonprofits based in the United Kingdom at a glance

As of Sep 17, 2026

36.7%Verified-email coverage

14.0Average contacts per company

1-10Median size (employees)

47.3%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 110 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 peacebuilding nonprofits, 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 “peacebuilding nonprofits”. 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 peacebuilding nonprofits), 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 peacebuilding nonprofits, 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, 567 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 17, 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.

Peacebuilding nonprofits by metro

Peacebuilding nonprofits in London52

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 peacebuilding nonprofits, 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 peacebuilding nonprofits are there based in the United Kingdom?

RevenueBase identified 110 peacebuilding nonprofits 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?

International Alert, headquartered in London, tops this list with the largest team on record.

Which city has the most peacebuilding nonprofits?

London leads with 52 headquartered companies, followed by Belfast (9) and Edinburgh (4).

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 567 verified decision-maker contacts tracked across these 110 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 17, 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.