Company lists · Data refreshed September 2026

Top 25 Volunteer organizations based in the United Kingdom

Name: Volunteer 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 22, 2026 528 companies tracked

RevenueBase identified 528 volunteer organizations headquartered in the United Kingdom as of September 2026 and tracks 5,371 professional contacts across them, including 1,385 with verified work emails. London is the largest hub.

This list covers volunteer 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 22, 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 22, 2026 86% judged on-target in blind review

528Companies

5,371Contacts tracked

1,385Verified emails

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The 25 largest volunteer organizations based in the United Kingdom

Ranked by team size

Top 25 of 528 volunteer organizations based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to volunteer 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	Volunteering Matters	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	201-500	378 contacts →
	Indirect evidence “EVERYONE IN THE UK SHOULD HAVE THE OPPORTUNITY TO THRIVE.” Source: RevenueBase Database · checked Sep 22, 2026
2	P3 Charity People Potential Possibilities	Indirect evidence	Ilkeston, United KingdomHQ checked Sep 22, 2026	501-1,000	182 contacts →
	Indirect evidence “P3 is a national charity supporting people to be valued, connected members of the communities in which they live.” Source: RevenueBase Database · checked Sep 22, 2026
3	NCVO	Strong evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	161 contacts →
	Strong evidence “NCVO champions the voluntary sector and volunteering because they’re essential for a better society.” Source: RevenueBase Database · checked Sep 22, 2026
4	Enable	Indirect evidence	Battersea, United KingdomHQ checked Sep 22, 2026	201-500	154 contacts →
	Indirect evidence “Enable is a not-for-profit organisation, working in partnership with councils, charities and other organisations to deliver health, leisure and community services and events that…” Source: RevenueBase Database · checked Sep 22, 2026
5	ST Vincent DE Paul Society England & Wales	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	100 contacts →
	Indirect evidence “Our Mission is to seek and find those in need, to help them in a spirit of justice and to tackle the causes of poverty where we can.” Source: RevenueBase Database · checked Sep 22, 2026
6	DOIT	Strong evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	96 contacts →
	Strong evidence “We're Do IT - the UK's number one volunteering platform.” Source: RevenueBase Database · checked Sep 22, 2026
7	Help & Care	Indirect evidence	Christchurch, United KingdomHQ checked Sep 22, 2026	51-200	88 contacts →
	Indirect evidence “Since its start in 1985 as a three-month pilot project Help & Care has evolved into a large voluntary organisation at the forefront of both delivering personal services whilst…” Source: RevenueBase Database · checked Sep 22, 2026
8	Humanitarian Operations	Indirect evidence	West End, United KingdomHQ checked Sep 22, 2026	11-50	78 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 22, 2026
9	ST Cuthbert's Care	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 22, 2026	201-500	66 contacts →
	Indirect evidence “St Cuthbert's Care is committed to helping improve the lives of some of the most vulnerable members of our communities, including people with profound disabilities, children in…” Source: RevenueBase Database · checked Sep 22, 2026
10	Sefton Council For Voluntary Service CVS	Indirect evidence	Liverpool, United KingdomHQ checked Sep 22, 2026	51-200	65 contacts →
	Indirect evidence “Sefton Council for Voluntary Service (CVS) is an independent registered charity with a borough-wide brief to assist and support voluntary community and faith sector (VCF) activity…” Source: RevenueBase Database · checked Sep 22, 2026
11	Young Somerset	Indirect evidence	Taunton, United KingdomHQ checked Sep 22, 2026	51-200	61 contacts →
	Indirect evidence “Young Somerset (formerly Somerset Rural Youth Project) is a voluntary organisation, registered charity and company limited by guarantee, established in 1997.” Source: RevenueBase Database · checked Sep 22, 2026
12	Ymca Bournemouth	Indirect evidence	Bournemouth, United KingdomHQ checked Sep 22, 2026	51-200	58 contacts →
	Indirect evidence “YMCA Bournemouth is one of the oldest and most established Charities in the area, having served the local community since 1879.” Source: RevenueBase Database · checked Sep 22, 2026
13	DT Hughes Group	Indirect evidence	Liverpool, United KingdomHQ checked Sep 22, 2026	51-200	54 contacts →
	Indirect evidence “DT Hughes are focused on building upon our 35 year history and reputation.” Source: RevenueBase Database · checked Sep 22, 2026
14	180 Degrees Consulting Exeter CIC	Indirect evidence	Exeter, United KingdomHQ checked Sep 22, 2026	11-50	53 contacts →
	Indirect evidence “As 180DC Exeter, we represent the global 180 Degrees Consulting Organisation from our HQ in the South West of the UK.” Source: RevenueBase Database · checked Sep 22, 2026
15	Scouts Scotland	Indirect evidence	Dunfermline, United KingdomHQ checked Sep 22, 2026	51-200	53 contacts →
	Indirect evidence “We empower young people develop skills for life that prepare them for better futures.” Source: RevenueBase Database · checked Sep 22, 2026
16	GO Dharmic	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	44 contacts →
	Indirect evidence “Go Dharmic is a global humanitarian organisation dedicated to turning compassion into action.” Source: RevenueBase Database · checked Sep 22, 2026
17	Community First	Indirect evidence	Fareham, United KingdomHQ checked Sep 22, 2026	51-200	44 contacts →
	Indirect evidence “Community First is a registered Charity.” Source: RevenueBase Database · checked Sep 22, 2026
18	BVSC	Indirect evidence	Birmingham, United KingdomHQ checked Sep 22, 2026	11-50	42 contacts →
	Indirect evidence “BVSC is one of the largest voluntary sector support organisations in the UK.” Source: RevenueBase Database · checked Sep 22, 2026
19	We Make Change	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	42 contacts →
	Indirect evidence “We make impact easy for everyone.” Source: RevenueBase Database · checked Sep 22, 2026
20	Voluntary Norfolk	Indirect evidence	Norwich, United KingdomHQ checked Sep 22, 2026	51-200	41 contacts →
	Indirect evidence “We are dedicated to delivering services that enable strong communities where people are able to work together to improve their lives and fulfil their ambitions.” Source: RevenueBase Database · checked Sep 22, 2026
21	Lifeline Projects	Indirect evidence	Dagenham, United KingdomHQ checked Sep 22, 2026	51-200	41 contacts →
	Indirect evidence “Characterised by renewed hope, developed confidence and improved skills, the programmes that we offer give people the chance to grow, expand their horizons, and become agents of…” Source: RevenueBase Database · checked Sep 22, 2026
22	AGE UK Hertfordshire	Indirect evidence	Hertford, United KingdomHQ checked Sep 22, 2026	201-500	39 contacts →
	Indirect evidence “We are a local, independent charity dedicated to improving the lives of older people across the entire county.” Source: RevenueBase Database · checked Sep 22, 2026
23	CSRN	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	38 contacts →
	Indirect evidence “Formerly known as the 'COVID-19 Student Response Network', CSRN is a non-profit founded in the wake of lockdown to bring together talented students from all over the world with…” Source: RevenueBase Database · checked Sep 22, 2026
24	The World Federation Of Ksimc	Indirect evidence	Stanmore, United KingdomHQ checked Sep 22, 2026	11-50	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 22, 2026
25	Ymca Ireland	Indirect evidence	Newcastle, United KingdomHQ checked Sep 22, 2026	11-50	34 contacts →
	Indirect evidence “The YMCA in Ireland is a voluntary organisation that works with children, young people, families and the community, with particular regard to those who are disadvantaged and…” Source: RevenueBase Database · checked Sep 22, 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: volunteer 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 volunteer organizations.
Partial evidence: Its own public description names part of volunteer organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name volunteer 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 528 volunteer organizations based in the United Kingdom

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Volunteer organizations based in the United Kingdom at a glance

As of Sep 22, 2026

25.8%Verified-email coverage

10.2Average contacts per company

1-10Median size (employees)

22.2%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

283

11-50

170

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 528 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 volunteer 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 “volunteer 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 volunteer 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 volunteer 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, 1,385 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 22, 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.

Volunteer organizations by metro

Volunteer organizations in London117

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 volunteer 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 volunteer organizations are there based in the United Kingdom?

RevenueBase identified 528 volunteer 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?

Volunteering Matters, headquartered in London, tops this list with the largest team on record.

Which city has the most volunteer organizations?

London leads with 117 headquartered companies, followed by Birmingham (17) and Leeds (10).

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 1,385 verified decision-maker contacts tracked across these 528 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 22, 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.