Company lists · Data refreshed September 2026

Top 25 Nonprofit mentoring organizations based in the United States

Name: Nonprofit mentoring organizations based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 5,361 companies tracked

RevenueBase identified 5,361 company matches for nonprofit mentoring organizations associated with the United States as of September 2026 and tracks 79,514 professional contacts across them, including 18,114 with verified work emails. New York is the largest hub.

This list covers company matches for nonprofit mentoring organizations 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 September 20, 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 Sep 20, 2026 How this list was built

5,361Companies

79,514Contacts tracked

18,114Verified emails

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The 25 largest nonprofit mentoring organizations based in the United States

Ranked by team size

Top 25 of 5,361 company matches for nonprofit mentoring organizations based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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	SEO Sponsors For Educational Opportunity	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	n/a	3,870 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 · Sep 20, 2026 · View company records in RevenueBase
2	Management Leadership For Tomorrow	Exact match	Bethesda, MD, United StatesHQ recorded Sep 20, 2026	n/a	2,927 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 · Sep 20, 2026 · View company records in RevenueBase
3	BIG Brothers BIG Sisters Of America	Exact match	Tampa, FL, United StatesHQ recorded Sep 20, 2026	n/a	1,948 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 · Sep 20, 2026 · View company records in RevenueBase
4	Score Mentors	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	n/a	1,328 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 · Sep 20, 2026 · View company records in RevenueBase
5	Genesys Works	Exact match	Keller, TX, United StatesHQ recorded Sep 20, 2026	n/a	1,042 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 · Sep 20, 2026 · View company records in RevenueBase
6	After School Matters	Exact match	Chicago, IL, United StatesHQ recorded Sep 20, 2026	n/a	810 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 · Sep 20, 2026 · View company records in RevenueBase
7	REM And Company	Exact match	St. Louis, United StatesHQ recorded Sep 20, 2026	201-500	577 contacts →
	Exact match “49% of Businesses fail within their first 5 years.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Urban Alliance	Exact match	Washington, United StatesHQ recorded Sep 20, 2026	51-200	558 contacts →
	Exact match “Urban Alliance is a nonprofit that connects young adults with paid work experiences, professional development, dedicated mentoring, and networking opportunities to help them…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	America Needs YOU	Exact match	New York, NJ, United StatesHQ recorded Sep 20, 2026	n/a	502 contacts →
	Exact match “America Needs You is the national nonprofit connecting ambitious, first-generation college students with transformative mentorship and intensive career development for economic…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Youth Guidance	Exact match	Chicago, IL, United StatesHQ recorded Sep 20, 2026	201-500	500 contacts →
	Exact match “Youth Guidance creates and implements school-based programs that enable children to overcome obstacles, focus on their education and, ultimately, to succeed in school and in life.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	TIE	Exact match	Santa Clara, CA, United StatesHQ recorded Sep 20, 2026	n/a	480 contacts →
	Exact match “TiE Inc, also known as TiE Global is a non-profit organization with the mission of fostering entrepreneurship, through mentoring, networking and education.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	BUILD	Exact match	Redwood City, CA, United StatesHQ recorded Sep 20, 2026	51-200	462 contacts →
	Exact match “Founded in BUILD uses entrepreneurship-based, experiential learning to ignite the potential of youth in under-resourced communities and equip them for high school, college and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	SASE	Exact match	Denver, CO, United StatesHQ recorded Sep 20, 2026	51-200	460 contacts →
	Exact match “SASE is a 501(c)(3) organization.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Consult Your Community	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	201-500	447 contacts →
	Exact match “Consult Your Community is a 501(c)(3) nonprofit working to empower every entrepreneur to have the economic freedom to pursue the American Dream.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Road To Hire	Exact match	Fort Mill, SC, United StatesHQ recorded Sep 20, 2026	51-200	441 contacts →
	Exact match “OUR MISSION Road to Hire invests in the untapped potential of underrepresented young adults by breaking down barriers to career success.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	Para LOS Niños	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 20, 2026	201-500	423 contacts →
	Exact match “Founded on Skid Row in 1980, our model fosters pathways to success through powerful families, strong communities, and excellence in education for children and youth to thrive.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Ymca Of Greater Cincinnati	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 20, 2026	1,001-5,000	406 contacts →
	Exact match “Our Mission To put Christian principles into practice through programs that build a healthy spirit, mind and body for all.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Hbcu First	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	n/a	402 contacts →
	Exact match “HBCU First is a student-led, employer-powered community advancing the wellbeing and economic participation of America's youth.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	JVS Socal	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 20, 2026	201-500	398 contacts →
	Exact match “JVS SoCal offers hope and opportunity to our diverse community through job training, mentoring and education, combined with expert career guidance and employer partnerships…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	12	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 20, 2026	51-200	378 contacts →
	Exact match “12+ is a 501(c)(3) non-profit organization that helps students achieve postsecondary success.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	JA Worldwide	Exact match	Boston, MA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	327 contacts →
	Exact match “As one of the world’s largest and most impactful youth-serving NGOs, JA Worldwide delivers hands-on, immersive learning in entrepreneurship, work readiness, and financial health.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	Friends Of The Children	Exact match	Portland, OR, United StatesHQ recorded Sep 20, 2026	201-500	324 contacts →
	Exact match “Friends of the Children was founded in 1993 in Portland, OR with just three Friends-salaried, professional mentors-and 24 children.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23	Public Allies	Exact match	Milwaukee, WI, United StatesHQ recorded Sep 20, 2026	51-200	300 contacts →
	Exact match “Since 1992, Public Allies has helped thousands of underrepresented emerging leaders serve our country, get on successful pathways to higher education and careers, and bring…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	Global Mentorship Initiative	Exact match	Bellevue, WA, United StatesHQ recorded Sep 20, 2026	n/a	292 contacts →
	Exact match “Global Mentorship Initiative (GMI) is a U.S-based nonprofit organization that helps historically underrepresented graduates worldwide secure their first professional roles and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	American Corporate Partners ACP	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	51-200	285 contacts →
	Exact match “American Corporate Partners (ACP) is a 501(c)(3) nonprofit organization dedicated to assisting transitioning US Service Members, Veterans and Active-Duty Military Spouses find…” Recorded in the RevenueBase company graph · Sep 20, 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 “nonprofit mentoring organizations”. 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 5,361 nonprofit mentoring organizations based in the United States

See the full list, filter by size, metro and specialty, and access 18,114 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nonprofit mentoring organizations based in the United States at a glance

As of Sep 20, 2026

22.8%Verified-email coverage

14.8Average contacts per company

1-10Median size (employees)

4.4%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

3,317

11-50

1,394

51-200

540

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 States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 5,361 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 “nonprofit mentoring organizations” 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 18,114 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 September 20, 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.

Nonprofit mentoring organizations 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 “nonprofit mentoring organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nonprofit mentoring organizations are there based in the United States?

RevenueBase identified 5,361 company matches for nonprofit mentoring organizations associated with the United States as of September 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?

SEO Sponsors For Educational Opportunity tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most nonprofit mentoring organizations?

New York leads with 237 company records, followed by Los Angeles (150) and Chicago (149).

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 18,114 professional contacts with verified work emails tracked across these 5,361 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 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 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.