Company lists · Data refreshed November 2026

Top 25 Mentorship nonprofits based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 25,088 companies tracked

RevenueBase identified 25,088 company matches for mentorship nonprofits associated with the United States as of November 2026 and tracks 323,875 professional contacts across them, including 72,030 with verified work emails. New York is the largest hub.

This list covers company matches for mentorship nonprofits associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

25,088Companies

323,875Contacts tracked

72,030Verified emails

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The 25 largest mentorship nonprofits based in the United States

Ranked by team size

Top 25 of 25,088 company matches for mentorship nonprofits based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Self Enhancement, INC	Exact match	Portland, OR, United StatesHQ recorded Nov 6, 2026	n/a	5,696 contacts →
	Exact match “Self Enhancement, Inc.(SEI) was established in 1981, by Tony Hopson, Sr, a lifelong North Portland resident and community leader.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	SEO Sponsors For Educational Opportunity	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	n/a	3,581 contacts →
	Exact match “Founded in 1963 during the Civil Rights Movement, SEO closes educational and career opportunity gaps for ambitious young people annually.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Deca INC	Exact match	Reston, VA, United StatesHQ recorded Nov 6, 2026	n/a	3,133 contacts →
	Exact match “With over a 75-year history, DECA has impacted the lives of more than 10 million students, educators, school administrators and business professionals since it was founded in 1946.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Management Leadership For Tomorrow	Exact match	Bethesda, MD, United StatesHQ recorded Nov 6, 2026	n/a	2,345 contacts →
	Exact match “Management Leadership for Tomorrow (MLT) is a non-profit organization that is changing the face of leadership across sectors and driving breakthrough results for individuals and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Aspire Institute	Exact match	Cambridge, MA, United StatesHQ recorded Nov 6, 2026	n/a	2,317 contacts →
	Exact match “Aspire Institute, a non-profit organization, was founded at Harvard University in 2017.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	FIRST	Exact match	Manchester, NH, United StatesHQ recorded Nov 6, 2026	n/a	2,306 contacts →
	Exact match “FIRST was founded in 1989 to inspire young people's interest and participation in science and technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Enactus	Exact match	United StatesHQ recorded Nov 6, 2026	n/a	2,266 contacts →
	Exact match “We are an international non-profit organization that believes investing in students who take ENTrepreneurial ACTion for others creates a better world for US all.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Vistage Worldwide, INC	Exact match	San Diego, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,956 contacts →
	Exact match “Vistage is the world’s largest executive coaching and peer advisory organization for small and midsize businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	BIG Brothers BIG Sisters Of America	Exact match	Tampa, FL, United StatesHQ recorded Nov 6, 2026	n/a	1,914 contacts →
	Exact match “Our mission is to create and support one-to-one mentoring relationships that ignite the power and promise of youth.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Latinos In Action	Exact match	Sandy, UT, United StatesHQ recorded Nov 6, 2026	n/a	1,882 contacts →
	Exact match “Empowering Latino youth to lead and strengthen their communities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Springboard	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	n/a	1,653 contacts →
	Exact match “The new economy needs a new approach to education.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Children's AID	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,580 contacts →
	Exact match “Our Mission: Children's Aid helps children in poverty to succeed and thrive.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	adplist.org	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	n/a	1,504 contacts →
	Exact match “ADPList is a global community on a mission to democratize mentorship for all.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Score Mentors	Exact match	Washington, VA, United StatesHQ recorded Nov 6, 2026	n/a	1,369 contacts →
	Exact match “SCORE is the nation’s largest network of volunteer, expert business mentors, with more than volunteers serving all 50 U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Youth Advocate Programs, INC	Exact match	Harrisburg, PA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,368 contacts →
	Exact match “A national high-impact nonprofit with global partnerships that provides community-based services as an alternative to youth incarceration and child welfare and behavioral health…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Children International	Exact match	Kansas City, MO, United StatesHQ recorded Nov 6, 2026	201-500	1,334 contacts →
	Exact match “Children International is a top-rated global nonprofit that delivers child and youth development programming to break the cycle of generational poverty.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Athlete To Athlete	Exact match	Los Angeles, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,300 contacts →
	Exact match “Athlete To Athlete is a fast growing sports-tech startup whose mission is to build the next generation of driven, confident, and resilient student-athletes through mentorship."It…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Npower	Exact match	Brooklyn, CA, United StatesHQ recorded Nov 6, 2026	201-500	1,145 contacts →
	Exact match “About NPower NPower is a national nonprofit launching tech careers through tuition-free training, personalized support, and job placement assistance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Braven	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	n/a	1,052 contacts →
	Exact match “Braven empowers promising young people on their path to college graduation and strong first jobs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Metropolitan Family Services	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,035 contacts →
	Exact match “Metropolitan Family Services empowers families to learn, to earn, to heal and to thrive.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Education At Work	Exact match	Tempe, AZ, United StatesHQ recorded Nov 6, 2026	501-1,000	1,020 contacts →
	Exact match “Education at Work helps American businesses tap the talents of hard-working and tech-savvy students to fill in-demand roles in #projectmanagement,#analytics,#customerservice, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Genesys Works	Exact match	Keller, TX, United StatesHQ recorded Nov 6, 2026	n/a	969 contacts →
	Exact match “Genesys Works is a nonprofit social enterprise providing pathways to career success for high school students in underserved communities through skills training, meaningful work…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	After School Matters	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	n/a	905 contacts →
	Exact match “Each year, After School Matters provides life-changing after-school and summer program opportunities to nearly Chicago high school teens.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Tamid Group	Exact match	Washington, MI, United StatesHQ recorded Nov 6, 2026	n/a	857 contacts →
	Exact match “TAMID Group is a nonprofit organization that develops the professional skills of undergraduate students through hands-on interaction with Israeli business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Students For Liberty	Exact match	Mclean, VA, United StatesHQ recorded Nov 6, 2026	n/a	838 contacts →
	Exact match “Students For Liberty is a 501(c)(3) nonprofit organization whose mission is to educate, develop, and empower the next generation of leaders of liberty.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “mentorship nonprofits”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 25,088 mentorship nonprofits based in the United States

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Mentorship nonprofits based in the United States at a glance

As of Nov 6, 2026

22.2%Verified-email coverage

12.9Average contacts per company

1-10Median size (employees)

5.4%Largest-city concentration · New York

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

17,593

11-50

5,443

51-200

1,470

201-500

281

501-1,000

101

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 25,088 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “mentorship nonprofits” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 72,030 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Mentorship nonprofits by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “mentorship nonprofits”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mentorship nonprofits are there based in the United States?

RevenueBase identified 25,088 company matches for mentorship nonprofits associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Self Enhancement, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most mentorship nonprofits?

New York leads with 1349 company records, followed by Los Angeles (777) and Chicago (730).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 72,030 professional contacts with verified work emails tracked across these 25,088 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.