Company lists · Data refreshed September 2026
Top 25 Nonprofit mentoring organizations based in Chicago, United States
RevenueBase identified 149 nonprofit mentoring organizations headquartered in Chicago, United States as of September 2026 and tracks 4,226 professional contacts across them, including 1,114 with verified work emails. New York is the largest hub.
This list covers nonprofit mentoring organizations headquartered in Chicago, United States, 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 Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 810 contacts → | ||||
Indirect evidence “Each year, After School Matters provides life-changing after-school and summer program opportunities to nearly Chicago high school teens.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 500 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 285 contacts → | ||||
Indirect evidence “Mission: We uniquely select, train, and mentor academically ambitious students from under-resourced communities to complete college and become the next generation of leaders who…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 226 contacts → | ||||
Indirect evidence “Our mission is to prevent the following societal problems: suicide, precarity and poverty, school truancy, and bullying, in addition to lack literacy and numeracy, college…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 178 contacts → | ||||
Indirect evidence “Our aim is to facilitate opportunities for racialized and minoritized students to connects to practical pathways to upward social mobility through education.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 148 contacts → | ||||
Indirect evidence “At City Year, we believe education has the power to help every student reach his or her potential.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 134 contacts → | ||||
Indirect evidence “One Million Degrees empowers low-income, highly motivated community college students to succeed in school, in work, and in life.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 127 contacts → | ||||
Indirect evidence “Since 1969, BUILD, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 109 contacts → | ||||
Indirect evidence “Genesys Works Chicago's mission is to provide pathways to career success for high school students in underserved communities through skills training, meaningful work experiences…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 108 contacts → | ||||
Indirect evidence “Project: VISION’s mission is to help youth of Chicago’s Chinatown, Bridgeport, McKinley Park, and surrounding communities achieve their full potentials by providing them with…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 91 contacts → | ||||
Indirect evidence “Sunshine Enterprises recognizes entrepreneurship as a critical asset to alleviate the financial burden and create a pathway to long-term wealth.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 91 contacts → | ||||
Indirect evidence “At Driving Forward, we believe that every college student should have an equal opportunity to achieve their career objectives and create a better future for themselves and their…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 83 contacts → | ||||
Indirect evidence “Since 1919, Union League Boys & Girls Clubs have opened doors of opportunity and prepared young people for a great future.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 82 contacts → | ||||
Indirect evidence “New Life Centers of Chicagoland is a company based out of 2657 S Lawndale, Chicago, Illinois, United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 74 contacts → | ||||
Indirect evidence “Every child deserves a chance to see their potential realized.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 73 contacts → | ||||
Indirect evidence “Midtown-Metro Achievement Centers (Midtown-Metro) help young men and women to become better students and better people through its Metro Achievement Center for girls and Midtown…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 42 contacts → | ||||
Indirect evidence “Future Founders® is a 501(c)3 non-profit organization that believes every youth can become an entrepreneur.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 38 contacts → | ||||
Indirect evidence “The Neighborhood Boys & Girls Club is a non-profit independent organization founded in 1931 dedicated to youth development.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 32 contacts → | ||||
Indirect evidence “Mission Statement: For Chicagoland youth who desire and deserve more, MetroSquash combines academic support, competitive squash, and enrichment to empower students to realize…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 31 contacts → | ||||
Indirect evidence “In Chicago, decades of systemic disinvestment have left many communities without access to quality education, career pathways, or economic opportunity.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 30 contacts → | ||||
Indirect evidence “Chicago Lights builds brighter futures for Chicago’s youth and adults through supportive relationships and life-changing programs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 26 contacts → | ||||
Partial evidence “The I Am Abel Foundation is a 501c3 nonprofit organization that seeks to bridge socioeconomic gaps and promote achievement amongst underrepresented minority inner city youth so…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 25 contacts → | ||||
Indirect evidence “Will there be enough architects, construction managers and engineers to fill the industry’s needs ten years from now?” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 21 contacts → | ||||
Indirect evidence “At GRIP Outreach For Youth, our mission is to invest in the lives of Chicago's youth through Christ-centered, Life-on-Life relationships.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 21 contacts → | ||||
Indirect evidence “Impacting generational change by empowering youth facing the greatest obstacles through relationships with paid, professional mentors for 12.5 years.” 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 149 nonprofit mentoring organizations based in Chicago, United States
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Nonprofit mentoring organizations based in Chicago, United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 149 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 Chicago, United States 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 Chicago 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, 1,114 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 in the United States
- Nonprofit mentoring organizations in New York220
- Nonprofit mentoring organizations in Los Angeles150
- Nonprofit mentoring organizations in Chicago149
- Nonprofit mentoring organizations in Atlanta107
- Nonprofit mentoring organizations in Washington100
- Nonprofit mentoring organizations in Houston81
- Nonprofit mentoring organizations in Dallas71
- Nonprofit mentoring organizations in Boston63
- Nonprofit mentoring organizations in San Francisco61
- Nonprofit mentoring organizations in Seattle56
- Nonprofit mentoring organizations in Charlotte52
- Nonprofit mentoring organizations in Philadelphia50
- Nonprofit mentoring organizations in Miami49
- Nonprofit mentoring organizations in Portland45
- Nonprofit mentoring organizations in Denver44
- Nonprofit mentoring organizations in San Diego43
- Nonprofit mentoring organizations in Baltimore42
- Nonprofit mentoring organizations in Oakland41
- Nonprofit mentoring organizations in Austin40
- Nonprofit mentoring organizations in Detroit39
- Nonprofit mentoring organizations in Orlando38
- Nonprofit mentoring organizations in Indianapolis37
- Nonprofit mentoring organizations in Minneapolis36
- Nonprofit mentoring organizations in Columbus35
- Nonprofit mentoring organizations in Cincinnati31
- Nonprofit mentoring organizations in Las Vegas31
- Nonprofit mentoring organizations in Phoenix31
- Nonprofit mentoring organizations in San Jose29
- Nonprofit mentoring organizations in Tampa29
- Nonprofit mentoring organizations in Raleigh28
- Nonprofit mentoring organizations in Pittsburgh27
- Nonprofit mentoring organizations in Sacramento27
- Nonprofit mentoring organizations in Richmond25
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 Chicago, United States?
RevenueBase identified 149 nonprofit mentoring organizations headquartered in Chicago, United States 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?
After School Matters, headquartered in Chicago, tops this list with the largest team on record.
Which city has the most nonprofit mentoring organizations?
New York leads with 220 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 1,114 verified decision-maker contacts tracked across these 149 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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