Company lists · Data refreshed September 2026
Top 25 High schools worldwide
RevenueBase identified 12,440 high schools worldwide as of September 2026 and tracks 274,953 professional contacts across them, including 78,068 with verified work emails and 63,157 with mobile numbers. The United States is the largest market and London the largest hub.
This list covers high schools worldwide, 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 7, 2026. Country and city lists for high schools follow the table.
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 high schools worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,943 contacts → | ||||
Indirect evidence “Welcome to Rockwood!” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,661 contacts → | ||||
Indirect evidence “Our Vision.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,540 contacts → | ||||
Partial evidence “Utica Community Schools is a nationally recognized school district dedicated to inspiring remarkable student achievement.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,538 contacts → | ||||
Partial evidence “Hanover County Public Schools (HCPS) is an award-winning school division that serves approximately students in Pre-K–12 across 24 schools.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,509 contacts → | ||||
Partial evidence “Wylie ISD is a fast-growing school district in southern Collin County, 25 miles northeast of metropolitan Dallas.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,502 contacts → | ||||
Partial evidence “Allen ISD is a nationally recognized public school district providing outstanding educational opportunities for elementary and secondary students.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,456 contacts → | ||||
Partial evidence “Boone County Schools are committed to ensuring every student is college, career and life ready.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,270 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,077 contacts → | ||||
Indirect evidence “The William S.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,029 contacts → | ||||
Strong evidence “High School District 214, founded in 1914, is one of Illinois' largest high school districts and is comprised of six exemplary high schools and three specialized schools.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 11 | 982 contacts → | ||||
Partial evidence “West Ada School District is based in Meridian, Idaho.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 12 | 910 contacts → | ||||
Indirect evidence “Next – Uddannelse København udbyder 10-klassesforløb, erhvervsuddannelser, eux, htx, hhx, stx, hf og efteruddannelseskurser.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 13 | 893 contacts → | ||||
Indirect evidence “El 7 de Diciembre de 1979, un grupo de amigos, estudiantes de la Universidad Nacional de Ingeniería, decidieron fundar una academia preuniversitaria para postulantes a la UNI.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 14 | 871 contacts → | ||||
Partial evidence “About Wichita Falls Independent School District (WFISD) Wichita Falls Independent School District proudly serves the vibrant North Texas community of Wichita Falls, providing…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 15 | 862 contacts → | ||||
Partial evidence “Quincy Public School District #172 is a large unit district located in west central Illinois.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 16 | 852 contacts → | ||||
Strong evidence “Plymouth-Canton Community Schools operates 15 elementary schools, five middle schools, three high schools & an alternative high school program.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 17 | 844 contacts → | ||||
Partial evidence “Bellevue Public Schools is proud to serve the educational needs of the Bellevue/Offutt Community.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 18 | 813 contacts → | ||||
Partial evidence “The School District of Janesville has approximately 9,500 pre kindergarten through 12th grade students served in our 20 schools.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 19 | 807 contacts → | ||||
Strong evidence “The David Douglas School District was formed in 1959 as a consolidation of the Gilbert, Powellhurst, and Russellville elementary school districts and the David Douglas Union High…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 20 | 800 contacts → | ||||
Partial evidence “The 117-square-mile Lee’s Summit R-7 School District is recognized as one of the top educational systems in the state and nation.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 21 | 782 contacts → | ||||
Partial evidence “Led by Superintendent Shawn Ryan and a supportive Board of Education, Clarkston is a highly regarded school district with an enrollment of 6,500 students.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 22 | 778 contacts → | ||||
Indirect evidence “Fundado em 1952 por padres canadenses da Congregação de Santa Cruz, o Colégio Santa Cruz oferece cursos de Educação Infantil, Ensino Fundamental e Ensino Médio.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 23 | 765 contacts → | ||||
Indirect evidence “This is District 211.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 24 | 755 contacts → | ||||
Partial evidence “New Brunswick Public Schools is a vibrant, diverse school district located in one of New Jersey’s most historic communities, a thriving college town that has been home to Rutgers…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 25 | 734 contacts → | ||||
Partial evidence “Welcome to the Colonial School District!” Source: RevenueBase Database · checked Sep 7, 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: high schools. 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 high schools.
- Partial evidence
- Its own public description names part of high schools, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name high schools. 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 12,440 high schools worldwide
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High schools worldwide at a glance
As of Sep 7, 2026Companies by employee count
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 high schools, 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.
- Coverage
- 35 countries, largest first: the United States, the United Kingdom, India, Germany, Türkiye, France, Indonesia, Brazil, Australia, Canada and 25 more. Country and city lists for high schools are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “high schools”. 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 high schools), 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 high schools, and records with no verified work email.
- 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, 78,068 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 between September 7, 2026 and September 15, 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.
High schools by location
45 lists · largest firstEvery High schools list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- High schools based in the United States5,126
- High schools based in the United Kingdom1,237
- High schools based in India1,047
- High schools based in Germany810
- High schools based in Türkiye388
- High schools based in France385
- High schools based in Indonesia383
- High schools based in Brazil366
- High schools based in Australia300
- High schools based in Canada250
- High schools based in Spain188
- High schools based in Argentina167
- High schools based in Colombia154
- High schools based in Chile147
- High schools based in Poland147
- High schools based in Belgium114
- High schools based in Hungary102
- High schools based in Italy102
- High schools based in Switzerland101
- High schools based in Pakistan94
- High schools based in South Africa88
- High schools based in the Netherlands76
- High schools based in the Philippines74
- High schools based in Mexico70
- High schools based in Denmark68
- High schools based in Peru61
- High schools based in New Zealand56
- High schools based in Portugal54
- High schools based in Norway51
- High schools based in Austria46
- High schools based in Malaysia46
- High schools based in Ireland45
- High schools based in Romania38
- High schools based in Sweden32
- High schools based in the United Arab Emirates27
Cities
- High schools based in Sao Paulo, Brazil83
- High schools based in London, United Kingdom68
- High schools based in New York, United States66
- High schools based in Chicago, United States55
- High schools based in Rio De Janeiro, Brazil49
- High schools based in Houston, United States47
- High schools based in Los Angeles, United States30
- High schools based in Birmingham, United Kingdom27
- High schools based in Phoenix, United States27
- High schools based in Manchester, United Kingdom25
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 high schools, 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 high schools are there worldwide?
RevenueBase identified 12,440 high schools worldwide 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?
Rockwood School District, headquartered in Eureka, tops this list with the largest team on record.
Which country has the most high schools?
The United States leads with 5,126 companies, followed by the United Kingdom (1,237) and India (1,047). Every high schools list by country and city is linked on this page.
Which city has the most high schools?
London leads with 115 headquartered companies, followed by Sao Paulo (48) and Hyderabad (42).
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 78,068 verified decision-maker contacts tracked across these 12,440 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 7, 2026 and September 15, 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.