Company lists · Data refreshed September 2026
Top 25 Nonprofit mentoring organizations based in the United Kingdom
RevenueBase identified 449 nonprofit mentoring organizations headquartered in the United Kingdom as of September 2026 and tracks 3,885 professional contacts across them, including 638 with verified work emails. London is the largest hub.
This list covers nonprofit mentoring 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.
The 25 largest nonprofit mentoring organizations based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 234 contacts → | ||||
Indirect evidence “Every young person has a vital spark within them - a unique potential waiting to be seen, nurtured and set alight.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 162 contacts → | ||||
Partial evidence “The Girls' Network inspired and empowers girls and young women from the least advantaged communities through mentoring and workshops that build confidence and belief in a brighter…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 123 contacts → | ||||
Partial evidence “The Association of Business Mentors (ABM) is the professional association improving and professionalising business mentoring in the UK.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 100 contacts → | ||||
Indirect evidence “We help young people make confident and informed decisions about their future.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 93 contacts → | ||||
Partial evidence “Digital Boost is a vibrant learning platform and community of people supporting each other: Small businesses & charities Access flexible 1:1 mentoring, peer learning programmes…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 81 contacts → | ||||
Indirect evidence “Future First’s believes that alumni can be inspirational role models and help schools do even more for their students.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 80 contacts → | ||||
Partial evidence “At ReachOut, we run after-school mentoring projects that build socio-emotional skills which transform outcomes for 9-14 year olds.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 76 contacts → | ||||
Partial evidence “One Million Mentor’s mission is to transform the process of mentoring for all in the UK.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 59 contacts → | ||||
Indirect evidence “We are Generation Success - and that includes you.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 54 contacts → | ||||
Indirect evidence “Urban Synergy is a youth empowerment charity, on a mission to inspire, guide and ignite the ambitions of young people.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 51 contacts → | ||||
Indirect evidence “The Talent Tap bridges the gap between young people from social mobility coldspots and the employers who need their talent.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 39 contacts → | ||||
Partial evidence “Ivy Consultants offers our mentees a unique, tailor-made mentoring programme to help them fulfil their educational dreams.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 39 contacts → | ||||
Indirect evidence “With love and respect, YouthBuild partners with opportunity youth to build the skillsets and mindsets that lead to lifelong learning, livelihood, and leadership.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 36 contacts → | ||||
Indirect evidence “Professors Without Borders was founded in 2016 with the mission to transform education into an equitable and exciting lifelong experience.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 35 contacts → | ||||
Indirect evidence “The Positive Youth Foundation provides opportunities for young people to reach their full potential.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 31 contacts → | ||||
Partial evidence “The Kids Network is a volunteer led Mentoring charity that pairs volunteer mentors with children aged 8-11 to build confidence, resilience and their well-being in local London…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 30 contacts → | ||||
Indirect evidence “We help young people discover their limitless potential and talents from their lived experiences.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 28 contacts → | ||||
Indirect evidence “Unfold (formerly Westminster Befriend a Family) has been supporting families since 1989.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 27 contacts → | ||||
Partial evidence “Youth4Youth is a non-profit organisation that provides peer-to-peer mentoring services for young people across the UK.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 26 contacts → | ||||
Indirect evidence “Sport 4 Life UK believe in a level playing field where every young person has the opportunity to create a better future for themselves.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 25 contacts → | ||||
Partial evidence “Elevate is a pioneering, free mentoring programme that has been designed with a specific goal in mind – to inspire, inform and empower people within the event industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 25 contacts → | ||||
Partial evidence “PLD was founded with the development of our online mentoring platform.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 25 contacts → | ||||
Partial evidence “The Catalyst Collective provides mentoring for the next generation of Black Women.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 23 contacts → | ||||
Indirect evidence “ORT UK is an education charity that inspires and supports secondary school-aged students to make informed, confident decisions about their future career journeys, guided by…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 22 contacts → | ||||
Partial evidence “Providing mentoring and creating opportunities for young people aged 11-25.” 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: nonprofit mentoring 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 nonprofit mentoring organizations.
- Partial evidence
- Its own public description names part of nonprofit mentoring organizations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name nonprofit mentoring 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 449 nonprofit mentoring organizations based in the United Kingdom
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Nonprofit mentoring organizations 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 449 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 nonprofit mentoring 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 “nonprofit mentoring 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 nonprofit mentoring 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 nonprofit mentoring 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, 638 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.
Nonprofit mentoring organizations by metro
- Nonprofit mentoring organizations in London193
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 nonprofit mentoring 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 nonprofit mentoring organizations are there based in the United Kingdom?
RevenueBase identified 449 nonprofit mentoring 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?
MCR Pathways, headquartered in Glasgow, tops this list with the largest team on record.
Which city has the most nonprofit mentoring organizations?
London leads with 193 headquartered companies, followed by Birmingham (14) and Glasgow (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 638 verified decision-maker contacts tracked across these 449 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.
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