Company lists · Data refreshed September 2026

Top 25 Independent high schools worldwide

Name: Independent high schools worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 11,298 companies tracked

RevenueBase identified 11,298 company matches for independent high schools worldwide as of September 2026 and tracks 346,915 professional contacts across them, including 120,115 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for independent high schools worldwide, 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. Country and city lists for independent high schools follow the table.

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

11,298Companies

346,915Contacts tracked

120,115Verified emails

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The 25 largest independent high schools worldwide

Ranked by team size

Top 25 of 11,298 company matches for independent high schools worldwide, 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	Charlotte-Mecklenburg Schools	Exact match	Charlotte, NC, United StatesHQ recorded Sep 20, 2026	10001+	14,181 contacts →
	Exact match “The mission of Charlotte-Mecklenburg Schools is to create an innovative, inclusive, student-centered environment that supports the development of independent learners.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	Idea Public Schools	Exact match	Weslaco, TX, United StatesHQ recorded Sep 20, 2026	10001+	4,988 contacts →
	Exact match “IDEA Public Schools believes that each child can go to college.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Harmony Public Schools	Exact match	Houston, TX, United StatesHQ recorded Sep 20, 2026	1,001-5,000	2,933 contacts →
	Exact match “Harmony Public Schools is a network of PreK-12 college preparatory public charter schools across Texas.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	Kipp Texas Public Schools	Exact match	Houston, TX, United StatesHQ recorded Sep 20, 2026	1,001-5,000	2,519 contacts →
	Exact match “KIPP Texas Public Schools is an open-enrollment, free public charter school network of 54 schools with more than Pre-K – 12 students across the state and an impact of 30 years in…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	Okyanus Kolejleri	Exact match	İstanbul, TürkiyeHQ recorded Sep 20, 2026	1,001-5,000	1,891 contacts →
	Exact match “Okyanus Kolejleri kurucusu Orhan ÖZBEY, 1979 yılında eğitim sektörüne giriş yaptı.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	Uplift Education	Exact match	Dallas, TX, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,695 contacts →
	Exact match “Uplift Education (Uplift) is a 501(c)(3) nonprofit organization that operates a network of 45 high-performing, tuition-free, public charter schools serving students in…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	International Leadership Of Texas	Exact match	Richardson, TX, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,316 contacts →
	Exact match “International Leadership of Texas (ILTexas) is a free, public charter school serving K-12 students across 26 campuses in the DFW, Houston, Liberty County, and College Station…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Aldar Education	Exact match	Yas Island, United Arab EmiratesHQ recorded Sep 20, 2026	5,001-10,000	1,270 contacts →
	Exact match “Aldar Education is Abu Dhabi’s leading private K-12 education group and one of the UAE’s most established education providers serving over students across a network of 27 schools…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	Imagine Schools	Exact match	United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,214 contacts →
	Exact match “Imagine Schools is a national non-profit network of 54 public charter campuses educating approximately students in 8 states and the District of Columbia.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Santa Rosa County Public Schools	Exact match	Milton, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,191 contacts →
	Exact match “A family of educators that strives to provide a high quality education for all students through a comprehensive curriculum from pre-kindergarten through adult programs.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Sociedad DE Instrucción Primaria DE Santiago	Exact match	Santiago, ChileHQ recorded Sep 20, 2026	1,001-5,000	1,183 contacts →
	Exact match “SIP.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	Aspire Public Schools	Exact match	Oakland, CA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,147 contacts →
	Exact match “Aspire now has 36 community-based schools serving over students in California.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	Responsive Education Solutions	Exact match	Lewisville, TX, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,103 contacts →
	Exact match “Our story began in 1998 when we, as a non-profit organization, were granted charters to open 15 dropout recovery and prevention schools.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Great Hearts Academies	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,093 contacts →
	Exact match “Since its inception, Great Hearts has been on a mission to become a national leader in public charter schools.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Legacy Traditional Schools	Exact match	Chandler, AZ, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,087 contacts →
	Exact match “Ignite your desire to be the best!” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	Mastery Schools	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,031 contacts →
	Exact match “Mastery Charter Schools and Mastery Schools of Camden form a non-profit school network of charter, turnaround and renaissance schools in Philadelphia, PA and Camden, NJ, serving…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Basis ED	Exact match	Scottsdale, AZ, United StatesHQ recorded Sep 20, 2026	1,001-5,000	928 contacts →
	Exact match “BASIS Charter Schools have been raising the level of American education to the highest international standards for more than 20 years, since our first school opened in 1998.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Kipp Foundation	Exact match	San Francisco, CA, United StatesHQ recorded Sep 20, 2026	n/a	878 contacts →
	Exact match “Work Hard.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Plymouth-Canton Community Schools	Exact match	Plymouth, MI, United StatesHQ recorded Sep 20, 2026	1,001-5,000	852 contacts →
	Exact match “Plymouth-Canton Community Schools operates 15 elementary schools, five middle schools, three high schools & an alternative high school program.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Noble Schools	Exact match	Chicago, IL, United StatesHQ recorded Sep 20, 2026	1,001-5,000	836 contacts →
	Exact match “Noble is a nonprofit organization that runs 17 charter public high schools and one middle school in the city of Chicago.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	Kipp Socal Public Schools	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	806 contacts →
	Exact match “KIPP SoCal Public Schools is a nonprofit organization that operates 24 tuition-free, open-enrollment charter public schools, within 20 Local Education Agencies, educating more…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	Caulfield Grammar School	Exact match	Melbourne, AustraliaHQ recorded Sep 20, 2026	501-1,000	801 contacts →
	Exact match “Established in 1881, Caulfield Grammar School is a leading independent co-educational school in Melbourne, Australia.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23	Stratford School	Exact match	Campbell, CA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	773 contacts →
	Exact match “Stratford School, part of Spring Education Group, is a leading independent WASC-accredited private school in California offering courses from preschool through 12th grade with a…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	Kipp NEW Jersey	Exact match	Newark, NJ, United StatesHQ recorded Sep 20, 2026	501-1,000	764 contacts →
	Exact match “About KIPP New Jersey KIPP New Jersey is part of the nationally recognized “Knowledge Is Power Program” network of free, open-enrollment, college-preparatory public schools…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	Medicana Eğitim Grubu	Exact match	İstanbul, TürkiyeHQ recorded Sep 20, 2026	201-500	759 contacts →
	Exact match “Eğitimde Dönüşümün Yeni Değeri” 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 “independent high schools”. 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 11,298 independent high schools worldwide

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Independent high schools worldwide at a glance

As of Sep 20, 2026

34.6%Verified-email coverage

30.7Average contacts per company

11-50Median size (employees)

1.0%Largest-city concentration · Sao Paulo

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

2,710

11-50

3,713

51-200

3,555

201-500

808

501-1,000

191

1,001-5,000

162

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for independent high schools are linked below.
What qualifies: Company records worldwide whose business descriptions match “independent high schools” 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. 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 120,115 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.

Independent high schools by location

46 lists · largest first

Every Independent high schools list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “independent high schools”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many independent high schools are there worldwide?

RevenueBase identified 11,298 company matches for independent high schools worldwide 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?

Charlotte-Mecklenburg Schools tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most independent high schools?

The United States leads with 5,596 companies, followed by Brazil (826) and the United Kingdom (382). Every independent high schools list by country and city is linked on this page.

Which city has the most independent high schools?

Sao Paulo leads with 118 company records, followed by New York (105) and Houston (88).

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 120,115 professional contacts with verified work emails tracked across these 11,298 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.