Company lists · Data refreshed September 2026
Top 25 Grammar schools worldwide
RevenueBase identified 1,918 grammar schools worldwide as of September 2026 and tracks 37,577 professional contacts across them, including 6,602 with verified work emails. The United Kingdom is the largest market and London the largest hub.
This list covers grammar 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 19, 2026. Country and city lists for grammar 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 grammar schools worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,785 contacts → | ||||
Indirect evidence “Yarım asrı aşkın sınav deneyimi ve yenilikçi eğitim yaklaşımları ile öğrencileri liseye, üniversiteye ve geleceğe doğrudan hazırlayan; Türkiye’nin en özgün okulu olarak, eğitime…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 693 contacts → | ||||
Indirect evidence “2017 - 2018 eğitim - öğretim döneminde hizmet vermeye başlayan Bilnet Okulları, okul öncesinden liseye tüm eğitim kademelerinde akademik başarı odaklı, 21.yy.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 363 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 362 contacts → | ||||
Indirect evidence “O curso e o colégio Oficina são referência em educação.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 344 contacts → | ||||
Indirect evidence “Liceum is a company based out of Poland.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 257 contacts → | ||||
Partial evidence “Established in 1981, Foundation Public School is a private O and A Level institution with the prime objective of providing quality education.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 244 contacts → | ||||
Indirect evidence “Akademiet Videregående Skole finner du i Oslo, Sandvika, Drammen, Fredrikstad, Kristiansand, Sandnes, Ålesund og Bergen.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 208 contacts → | ||||
Indirect evidence “Established in 1998, Nigerian Tulip International Colleges (NTIC) an umbrella company of First Sürat Group of Companies Limited.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 190 contacts → | ||||
Partial evidence “Het Corlaer College wil een school zijn waar leerlingen uitgedaagd worden het beste uit zichzelf te halen.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 181 contacts → | ||||
Partial evidence “Welcome to Rangitoto College, New Zealand’s largest secondary school.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 171 contacts → | ||||
Indirect evidence “Ao longo dos seus 16 anos, o ISO se consolidou como a escola que mais aprova em vestibulares na Paraíba.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 165 contacts → | ||||
Indirect evidence “Desde 1948, o Colégio Jardim São Paulo dedica-se à formação humana e intelectual de seus alunos, priorizando não só a formação acadêmica, mas também diversas modalidades…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 154 contacts → | ||||
Indirect evidence “Nosso propósito é expandir os limites dos nossos alunos por meio de uma educação que une excelência e rigor acadêmico, práticas pedagógicas consistentes e valores inegociáveis –…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 153 contacts → | ||||
Indirect evidence “rsg de Borgen biedt een breed aanbod van voortgezet onderwijs.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 136 contacts → | ||||
Indirect evidence “Escuela Popular is a Primary/Secondary company located in 467 N White Rd, San Jose, California, United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 134 contacts → | ||||
Partial evidence “Nestled in the picturesque Dorset countryside, Clayesmore is not just a school; it's a vibrant community where students thrive both academically and personally.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 127 contacts → | ||||
Indirect evidence “ABC Eğitim Kurumları; kurulduğu 2006 yılından itibaren Ankara’da ulusal ve uluslararası akademik, sosyal ve sportif alanlarda göstermiş olduğu başarılarla adından söz ettirerek…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 120 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 117 contacts → | ||||
Indirect evidence “Trường trung học phổ thông chuyên Bắc Giang là trường chuyên duy nhất tại tỉnh Bắc Giang, có địa điểm tại Phường Hoàng Văn Thụ, Thành phố Bắc Giang, tỉnh Bắc Giang.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 115 contacts → | ||||
Indirect evidence “Thorbecke Talentschool Rotterdam heeft twee locaties in Rotterdam-Alexanderpolder en een in Nieuwerkerk aan den IJssel.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 113 contacts → | ||||
Indirect evidence “Located in Scottsdale, Arizona, Notre Dame Preparatory forms scholars, leaders, and disciples committed to lifelong learning and faithful citizenship.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 110 contacts → | ||||
Indirect evidence “Le Collège Jean-Eudes est une école secondaire privée située à Montréal, fondé en 1953 par des pères Eudistes.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 107 contacts → | ||||
Indirect evidence “At Long Bay College you will find a world-class staff of expert teachers and highly capable administrators.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 107 contacts → | ||||
Indirect evidence 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: grammar 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 grammar schools.
- Partial evidence
- Its own public description names part of grammar schools, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name grammar 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 1,918 grammar schools worldwide
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Grammar schools worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 grammar 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
- Every country. Country and city lists for grammar schools are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “grammar 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 grammar 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 grammar 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, 6,602 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.
Grammar schools by location
9 lists · largest firstEvery Grammar schools list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Grammar schools based in the United Kingdom227
- Grammar schools based in the United States226
- Grammar schools based in India167
- Grammar schools based in Brazil122
- Grammar schools based in Germany108
- Grammar schools based in Türkiye84
- Grammar schools based in Australia41
- Grammar schools based in Canada40
- Grammar schools based in Belgium28
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 grammar 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 grammar schools are there worldwide?
RevenueBase identified 1,918 grammar 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?
Uğur Okulları, headquartered in Istanbul, tops this list with the largest team on record.
Which country has the most grammar schools?
The United Kingdom leads with 227 companies, followed by the United States (226) and India (167). Every grammar schools list by country and city is linked on this page.
Which city has the most grammar schools?
London leads with 19 headquartered companies, followed by Istanbul (12) and Sao Paulo (11).
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 6,602 verified decision-maker contacts tracked across these 1,918 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.