Company lists · Data refreshed September 2026

Top 20 Nonprofit mentoring organizations based in San Diego, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 43 companies tracked

RevenueBase identified 43 company matches for nonprofit mentoring organizations associated with San Diego, United States as of September 2026 and tracks 712 professional contacts across them, including 91 with verified work emails. Across the United States, New York is the largest hub for this category (220 companies); San Diego has 43.

This list covers company matches for nonprofit mentoring organizations associated with San Diego, 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

43Companies

712Contacts tracked

91Verified emails

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The 20 largest nonprofit mentoring organizations based in San Diego, United States

Ranked by team size

Top 20 of 43 company matches for nonprofit mentoring organizations based in San Diego, 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	Reality Changers	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	11-50	49 contacts →
	Exact match “At Reality Changers, we believe that college changes everything.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	BIG Brothers BIG Sisters Of SAN Diego County	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	11-50	36 contacts →
	Exact match “The Big Brothers Big Sisters 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
3	Urban Street Angels, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	11-50	32 contacts →
	Exact match “Founded in 2012, Urban Street Angels is a San Diego native 501(c)3 attentive to supporting homeless youth through supportive housing, peer support, mentorship, mental health…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	The David's Harp Foundation, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	25 contacts →
	Exact match “A San Diego based 501(c)(3) non-profit organization fulfilling its mission to inspire, educate and empower at-risk and homeless youth through media production.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	The ED Ladder	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	51-200	17 contacts →
	Exact match “The Ed Ladder is a 501c3 organization that supports underserved learners through strategic, supplemental educational services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	SAN Diego Refugee Tutoring	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	13 contacts →
	Exact match “Our mission: San Diego Refugee Tutoring (SDRT) provides holistic academic support through one-on-one tutoring, enrichment activities, and mentorship to students of refugee…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	Mind Masters	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	8 contacts →
	Exact match “In today’s economy running a small business is a high wire act.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Pics Partners In College Success	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	11-50	7 contacts →
	Exact match “We help low-income, first-generation students get into college, succeed, and get jobs!” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	The Eagles Organization	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	6 contacts →
	Exact match “There's no better way to serve the community, than to get to know your community.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Camp Fire SAN Diego County	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	11-50	6 contacts →
	Exact match “Camp Fire San Diego County has been serving the county for over 75 years.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Real World Scholars	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	6 contacts →
	Exact match “At Real World Scholars, we believe all students deserve transformative and empowering learning opportunities, and we know that entrepreneurship can be a powerful catalyst to make…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	SAN Diego Social Venture Partners	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	5 contacts →
	Exact match “San Diego Social Venture Partners unleashes the potential of professionals across sectors to increase nonprofits’ organizational strength and resulting impact.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	Girls Rising	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	5 contacts →
	Exact match “The mission of Girls Rising is to empower girls from eight years of age to early adulthood through a sisterhood of mentorship and career readiness support.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	The Athlete Academy Foundation	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	5 contacts →
	Exact match “The Athlete Academy’s mission is to serve, educate, and empower high school student-athletes in underserved communities in order to prepare them for college and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Ritamac, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	2 contacts →
	Exact match “We help small business owners sleep at night!” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	Visit Ministries	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	2 contacts →
	Exact match “Helping churches build family with the young people of their community.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Marchitecture	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	2 contacts →
	Exact match “Marchitecture empowers business leaders of startups, accelerators, nonprofits, small businesses, and companies through mentorship, training, storytelling, and growth mindset tools…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	A Bridge For Kids	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	2 contacts →
	Exact match “A Bridge for Kids is a non-profit organization that empowers underprivileged and under-resourced teenagers to achieve their full potential by providing them with the resources and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Malveaux & CO	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	2 contacts →
	Exact match “Through strategic partnerships and community outreach, we assist diverse small and medium-sized businesses to make growth development and opportunities within reach.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Community Business Incubator INC CBI	Exact match	San Diego, CA, United StatesHQ recorded Sep 20, 2026	1-10	1 contacts →
	Exact match “COMMUNITY BUSINESS INCUBATOR INC (CBI) is a Public Benefits Business Development Nonprofit 501(c)(3) Organization based out of SAN DIEGO, California, United States.” 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 20 of 43 nonprofit mentoring organizations based in San Diego, United States

See the full list, filter by size, metro and specialty, and access 91 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nonprofit mentoring organizations based in San Diego, United States at a glance

As of Sep 20, 2026

12.8%Verified-email coverage

16.6Average contacts per company

1-10Median size (employees)

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Email recency for this list is measured across the whole United States list rather than for San Diego, so it is reported there. Company counts and contact totals on this page are exact for San Diego, over 43 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 San Diego, 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 91 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 in the United States

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 San Diego, United States?

RevenueBase identified 43 company matches for nonprofit mentoring organizations associated with San Diego, 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?

Reality Changers tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most nonprofit mentoring organizations?

New York leads the United States with 220 company records, followed by Los Angeles (150) and Chicago (149). San Diego has 43.

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 91 professional contacts with verified work emails tracked across these 43 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.