Company lists · Data refreshed September 2026
Top 25 Adult child mentoring programs worldwide
RevenueBase identified 1,436 adult child mentoring programs worldwide as of September 2026 and tracks 17,844 professional contacts across them, including 5,134 with verified work emails and 5,391 with mobile numbers. The United States is the largest market and London the largest hub.
This list covers adult child mentoring programs worldwide, 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 7, 2026. Country and city lists for adult child mentoring programs follow the table.
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 adult child mentoring programs worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,948 contacts → | ||||
Partial evidence “Our mission is to create and support one-to-one mentoring relationships that ignite the power and promise of youth.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 2 | 324 contacts → | ||||
Indirect evidence “Friends of the Children was founded in 1993 in Portland, OR with just three Friends-salaried, professional mentors-and 24 children.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 3 | 274 contacts → | ||||
Indirect evidence “We provide young people with a caring, independent volunteer mentor who shows up each week, just for them, online and in high schools across Australia.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 4 | 268 contacts → | ||||
Partial evidence “Mentoring transforms lives: we connect kids to college students through weekly on-campus activities that inspire growth, confidence, and brighter futures.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 5 | 255 contacts → | ||||
Indirect evidence “At iMentor, we believe in the transformative power of mentorship as a force for good.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 7, 2026Thanks. The Data Team will review it. | |||||
| 7 | 199 contacts → | ||||
Partial evidence “Big Brothers Big Sisters of Canada enables life-changing mentoring relationships to ignite the power and potential of young people.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 8 | 184 contacts → | ||||
Indirect evidence “Through a school-based coordinator, Communities In Schools of San Antonio connects students and their families to critical community resources tailored to local needs.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 9 | 166 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 7, 2026Thanks. The Data Team will review it. | |||||
| 11 | 154 contacts → | ||||
Indirect evidence “We believe all children deserve the opportunity to thrive.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 12 | 138 contacts → | ||||
Indirect evidence “We are one of the 270+ affiliates around the country that help children reach their full potential through professionally supported, one-to-one relationships with measurable…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 13 | 136 contacts → | ||||
Strong evidence “For more than 60 years, Big Brothers Big Sisters of Eastern Massachusetts has worked to ensure that every child has the support from caring adults that they need for healthy…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 14 | 128 contacts → | ||||
Indirect evidence “Oppidan is on a mission to find every student in the world an inspirational mentor.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 15 | 126 contacts → | ||||
Indirect evidence “Our Piece of the Pie (OPP) is a community-based leadership development organization that empowers young people ages 14-24 to build the confidence, competencies, and internal…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 16 | 122 contacts → | ||||
Partial evidence “Boys & Girls Clubs of the Valley (BGCAZ) offers affordable after-school and summer programs for young people in grades K-12.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 17 | 116 contacts → | ||||
Partial evidence “TeamMates Mentoring is a nonprofit organization founded by Dr.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 18 | 107 contacts → | ||||
Indirect evidence “We exist to mobilize goldy people in the lives of kids and families, to provide tangible help and eternal hope.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 19 | 103 contacts → | ||||
Indirect evidence “For more than 100 years, BGC Ottawa (formerly the Boys & Girls Club of Ottawa) has been opening doors of opportunity for children and youth across our city.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 20 | 95 contacts → | ||||
Partial evidence “We create and support mentoring relationships that ignite the power and promise of youth in the Twin Cities.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 21 | 95 contacts → | ||||
Partial evidence “Big Brothers Big Sisters believes every child is born with potential.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 22 | 88 contacts → | ||||
Indirect evidence “The Sunshine Method is a powerful one-on-one learning initiative designed to promote education and leadership in youth from diverse backgrounds.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 23 | 86 contacts → | ||||
Indirect evidence “We are one of the 270+ affiliates around the country that help children reach their full potential through professionally supported, one-to-one relationships with measurable…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 24 | 83 contacts → | ||||
Partial evidence “Each time Big Brothers Big Sisters of Central Arizona pairs a child with a role model, we start something incredible: a one-to-one relationship built on trust and friendship that…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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 7, 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: adult child mentoring programs. 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 adult child mentoring programs.
- Partial evidence
- Its own public description names part of adult child mentoring programs, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name adult child mentoring programs. 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 1,436 adult child mentoring programs worldwide
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Adult child mentoring programs worldwide at a glance
As of Sep 7, 2026Companies by employee count
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 adult child mentoring programs, 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.
- Coverage
- 6 countries, largest first: the United States, the United Kingdom, Canada, Australia, the Netherlands, Germany. Country and city lists for adult child mentoring programs are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “adult child mentoring programs”. 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 adult child mentoring programs), 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 adult child mentoring programs, and records with no verified work email.
- 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, 5,134 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 7, 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.
Adult child mentoring programs by location
9 lists · largest firstEvery Adult child mentoring programs list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Adult child mentoring programs based in the United States1,080
- Adult child mentoring programs based in the United Kingdom123
- Adult child mentoring programs based in Canada115
- Adult child mentoring programs based in Australia45
- Adult child mentoring programs based in the Netherlands39
- Adult child mentoring programs based in Germany34
Cities
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 adult child mentoring programs, 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 adult child mentoring programs are there worldwide?
RevenueBase identified 1,436 adult child mentoring programs worldwide 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?
BIG Brothers BIG Sisters Of America, headquartered in Tampa, tops this list with the largest team on record.
Which country has the most adult child mentoring programs?
The United States leads with 1,080 companies, followed by the United Kingdom (123) and Canada (115). Every adult child mentoring programs list by country and city is linked on this page.
Which city has the most adult child mentoring programs?
London leads with 47 headquartered companies, followed by New York (33) and Los Angeles (32).
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 5,134 verified decision-maker contacts tracked across these 1,436 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 7, 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.