Company lists · Data refreshed September 2026

Top 25 College prep organizations based in Houston, United States

Name: College prep organizations based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 82 companies tracked

RevenueBase identified 82 company matches for college prep organizations associated with Houston, United States as of September 2026 and tracks 1,290 professional contacts across them, including 549 with verified work emails. Across the United States, New York is the largest hub for this category (291 companies); Houston has 82.

This list covers company matches for college prep organizations associated with Houston, 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 19, 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 19, 2026 How this list was built

82Companies

1,290Contacts tracked

549Verified emails

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The 25 largest college prep organizations based in Houston, United States

Ranked by team size

Top 25 of 82 company matches for college prep organizations based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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	National Math And Science Initiative	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	51-200	196 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Houston Christian High School	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	51-200	160 contacts →
	Exact match “Houston Christian High School inspires students to become leaders in a close-knit community.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Cristo REY Jesuit College Preparatory Of Houston	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	51-200	88 contacts →
	Exact match “Cristo Rey Jesuit, a Catholic high school, combines personal responsibility, academic rigor, and a corporate work-study program to empower students of all faiths from economically…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Westbury Christian School	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	51-200	81 contacts →
	Exact match “Westbury Christian School is a vibrant community of learners in Southwest Houston that is a reflection of the Kingdom: Faithful, Wise, and Diverse.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Saint Thomas' Episcopal School	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	51-200	75 contacts →
	Exact match “We are proud to be named the #1 Best Christian High School in the Houston Area for 2019 by Niche, a website that ranks schools and colleges throughout the U.S.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	The FAY School	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	51-200	64 contacts →
	Exact match “At The Fay School, our core values center on providing an educational experience that ensures our students are Prepared, Well-Rounded, and Articulate-three essential cornerstones…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Northland Christian School	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	51-200	56 contacts →
	Exact match “Northland Christian School is committed to preparing all students for the world of tomorrow and to offering each student directed academic planning, giving them the best…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	General Academic, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	51-200	48 contacts →
	Exact match “General Academic is an integrated education services and media company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	The Enrichery	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	51-200	46 contacts →
	Exact match “The Enrichery is an education company that strives to enrich the lives of students through academic coaching, college counseling, standardized test preparation, and educational…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Lutheran South Academy	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	51-200	35 contacts →
	Exact match “Lutheran South Academy (LSA) is a fully accredited PreK-3 through 12th grade college preparatory school located on the southeast side of Houston, TX.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Firat Education	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	11-50	27 contacts →
	Exact match “At Firat Education, we IDENTIFY and continually ASSESS end goals, whether this is high school, college, or graduate school, that are best fit and PROVIDE academic, test prep, and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Langham Creek High School	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	1-10	23 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Memorial High School	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	51-200	23 contacts →
	Exact match “Memorial High School (MHS) is a comprehensive public high school (grades 9 -12) offering a rigorous college preparatory program that supports excellence in academics and pride in…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Cypress Ridge High School	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	11-50	20 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Cypress Falls High School	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	11-50	17 contacts →
	Exact match “Cypress Falls High School is a company based out of 9811 HUFFMEISTER RD, HOUSTON, Texas, United States.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Elevate Collegiate Charter School	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	11-50	12 contacts →
	Exact match “Who are we?” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	All-In-One Academics	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	1-10	11 contacts →
	Exact match “All-in-One Academics is a Houston-based, comprehensive college admissions company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Carnegie Vanguard High School	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	51-200	11 contacts →
	Exact match “Carnegie Vanguard High School is a company based out of 1501 TAFT, HOUSTON, Texas, United States.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Invictus Prep	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	11-50	9 contacts →
	Exact match “In Latin, Invictus means “invincible.” Based in Houston, Invictus Prep is a female-owned academic and college readiness startup founded by two siblings who both worked extensively…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Lutheran North Academy	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	11-50	8 contacts →
	Exact match “Lutheran North Academy provides students in the 6-12 grade with Excellence in Academics and Meaningful Ministry.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Harmony School Of Discovery - Houston	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	51-200	7 contacts →
	Exact match “Harmony School Of Discovery - Houston is a company based out of 6270 Barker Cypress Rd, Houston, Texas, United States.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Grace Christian Academy	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	11-50	7 contacts →
	Exact match “GCA proudly offers a successful program for Pre-K through 12th grade.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Horizon Leadership Academy	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	11-50	6 contacts →
	Exact match “HLA, where academic excellence meets character development and community involvement.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	To The TOP Education Group	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	1-10	6 contacts →
	Exact match “To The Top Education Group is a full-service education consulting firm that helps Asian and Asian American students study at selective high schools and colleges.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Minds Matter Houston	Exact match	Houston, United StatesHQ recorded Sep 19, 2026	1-10	5 contacts →
	Exact match “Minds Matter is a comprehensive and highly-successful three-year program that empowers young people from low-income families to achieve college readiness and success.” Recorded in the RevenueBase company graph · Sep 19, 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 “college prep 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 82 college prep organizations based in Houston, United States

See the full list, filter by size, metro and specialty, and access 549 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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College prep organizations based in Houston, United States at a glance

As of Sep 19, 2026

42.6%Verified-email coverage

15.7Average contacts per company

1-10Median size (employees)

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

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 82 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 Houston, United States whose business descriptions match “college prep 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 549 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 19, 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.

College prep 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 “college prep organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many college prep organizations are there based in Houston, United States?

RevenueBase identified 82 company matches for college prep organizations associated with Houston, 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?

National Math And Science Initiative 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 college prep organizations?

New York leads the United States with 291 company records, followed by Los Angeles (144) and Chicago (115). Houston has 82.

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 549 professional contacts with verified work emails tracked across these 82 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 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 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.