Company lists · Data refreshed September 2026
Top 25 Educational nonprofit organizations based in Houston, United States
RevenueBase identified 61 educational nonprofit organizations headquartered in Houston, United States as of September 2026 and tracks 1,513 professional contacts across them, including 533 with verified work emails. New York is the largest hub.
This list covers educational nonprofit organizations headquartered in Houston, 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 19, 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 educational nonprofit organizations based in Houston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 858 contacts → | ||||
Partial evidence “Harris County Department of Education makes learning more affordable and accessible through training and funding.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 196 contacts → | ||||
Strong evidence “The National Math and Science Initiative is a national nonprofit organization dedicated to transforming math and science education in today’s classrooms and ensuring that all…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 91 contacts → | ||||
Partial evidence “Pratham is committed to making schools and communities future-ready where every child, youth and woman has the education, tools and opportunities to thrive in an ever-changing…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 67 contacts → | ||||
Indirect evidence “iEducate is a 501c3 organization that is working to modernize the classroom model, hiring currently enrolled college students to work as tutors alongside teachers in underserved…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 32 contacts → | ||||
Indirect evidence “Good Reason Houston imagines a future where every child, in every neighborhood, excels in a world-class public school and thrives in the Houston of tomorrow.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 12 contacts → | ||||
Indirect evidence “Neighborhood Schools’ mission is to guide children from under-served communities to love learning and develop the academic skills and virtues to succeed in life and transform…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 12 contacts → | ||||
Indirect evidence “Houston A+ Challenge serves as a catalyst for change in the public schools that educate nine of every ten children in our region, teaming with principals and teachers in targeted…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 11 contacts → | ||||
Partial evidence “Our Mission: To educate and inspire children through the arts, to make the arts an integral part of the school curriculum, and to advance the field of arts in education through…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 7 contacts → | ||||
Indirect evidence “Jack Yates High School is an entertainment company based out of 3703 Sampson St, Houston, Texas, United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 7 contacts → | ||||
Indirect evidence “Davis High School Aldine is a company based out of 12525 ELLA BLVD, HOUSTON, Texas, United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 7 contacts → | ||||
Indirect evidence “The Houston ISD Foundation is dedicated to mobilizing the local community in support of innovative priorities in HISD to improve outcomes for all students in the district.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 contacts → | ||||
Indirect evidence “HLA, where academic excellence meets character development and community involvement.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 5 contacts → | ||||
Indirect evidence “Our Mission: We strive to provide schools, districts, and organizations serving K – 12 students & families with STEM training and Instructional support that impacts and empowers…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Partial evidence “We’re a 501(c)3 non-profit organization, and we’re working to enhance educational, professional, and STEM opportunities for students and teachers at the Energy Institute High…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Partial evidence “Our Mission is To Transform educational equity by delivering innovative, data-driven solutions to empower students to achieve academic excellence, confidence, and lifelong success.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Strong evidence “SPRING BRANCH EDUCATION FOUNDATION is a nonprofit organization management company based out of 955 CAMPBELL RD, Houston, Texas, United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 contacts → | ||||
Partial evidence “Institute for Civic Education (aka ICEVN) is a non-profit organization whose mission is to promote social responsibilities by providing civic education, entrepreneurship…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Indirect evidence “The Houston Learning Network (HLN) is a non-profit organization dedicated to promoting critical thinking and lifelong learning.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Indirect evidence “Our mission is to train, support, and equip educators, building strong foundations for our students and igniting their passions for STEM.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “Our mission is to uplift teachers and at-risk students by developing and supporting them through tutoring, consulting, therapy, and providing other necessary resources to thrive.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “Decision training for the Space–AI economy, built in Houston's NASA-centered space ecosystem.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “Better Tools.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Partial evidence “At Tallest Trees, we are a full-service educational consulting firm dedicated to nurturing the growth and potential of every student.” Source: RevenueBase Database · checked Sep 19, 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: educational nonprofit 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 educational nonprofit organizations.
- Partial evidence
- Its own public description names part of educational nonprofit organizations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name educational nonprofit 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 61 educational nonprofit organizations based in Houston, United States
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Educational nonprofit organizations based in Houston, United States at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 61 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 educational nonprofit 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 Houston, United States whose own description of what they do matches “educational nonprofit 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 educational nonprofit 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 educational nonprofit organizations, and records with no verified work email. Companies headquartered outside Houston 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, 533 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 19, 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.
Educational nonprofit organizations by metro in the United States
- Educational nonprofit organizations in New York171
- Educational nonprofit organizations in Washington105
- Educational nonprofit organizations in Los Angeles89
- Educational nonprofit organizations in Chicago79
- Educational nonprofit organizations in Houston61
- Educational nonprofit organizations in Austin59
- Educational nonprofit organizations in Atlanta50
- Educational nonprofit organizations in Philadelphia50
- Educational nonprofit organizations in Boston48
- Educational nonprofit organizations in Denver47
- Educational nonprofit organizations in San Francisco37
- Educational nonprofit organizations in Phoenix35
- Educational nonprofit organizations in Dallas34
- Educational nonprofit organizations in Miami33
- Educational nonprofit organizations in Portland33
- Educational nonprofit organizations in San Diego28
- Educational nonprofit organizations in Columbus26
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 educational nonprofit 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 educational nonprofit organizations are there based in Houston, United States?
RevenueBase identified 61 educational nonprofit organizations headquartered in Houston, 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?
Harris County Department Of Education, headquartered in Houston, tops this list with the largest team on record.
Which city has the most educational nonprofit organizations?
New York leads with 171 headquartered companies, followed by Washington (105) and Los Angeles (89).
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 533 verified decision-maker contacts tracked across these 61 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 19, 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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