Company lists · Data refreshed November 2026

Top 25 High schools based in Türkiye

The RevenueBase directory lists 377 high schools based in Türkiye, with 4,756 contacts and 787 email addresses associated with those organizations. Istanbul is the single most-represented city among the companies on the list, and the data is current as of November 2026.

High schools are educational institutions that provide secondary-level instruction to students in the later years of school. This list covers high schools that provide secondary education, including public, private, charter, and independent institutions. Ranked by team size, largest first. Data current as of November 5, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Nov 5, 2026 86% judged on-target in blind review
377Companies
4,756Contacts tracked
787Verified emails
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The 25 largest high schools based in Türkiye

Ranked by team size
Top 25 of 377 high schools based in Türkiye, ranked by team size, largest first. Data refreshed Nov 5, 2026. RevenueBase Smart Search rates how each company's information relates to high schools: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceİstanbul, TürkiyeHQ checked Nov 5, 2026501-1,000412 contacts →

Indirect evidence

“Özel Anabilim Eğitim Kurumları, 1987 yılında Kozyatağı’ndaki binasında ortaokul ve lise olarak eğitim-öğretime başladı.”

Source: RevenueBase Database · checked Nov 5, 2026
2Indirect evidenceİstanbul, TürkiyeHQ checked Nov 5, 2026501-1,000356 contacts →

Indirect evidence

“1986 yılında Sevinç Dershaneleri olarak eğitim hayatına başlayan Sevinç Eğitim Kurumları; Kolejleri, Kurs Merkezleri, Anaokulları ve Yayıncılığı ile Türkiye'nin önde gelen, en…”

Source: RevenueBase Database · checked Nov 5, 2026
3Indirect evidenceIstanbul, TürkiyeHQ checked Nov 5, 20265,001-10,000268 contacts →

Indirect evidence

Source: RevenueBase Database · checked Nov 5, 2026
4Indirect evidenceBeykoz, TürkiyeHQ checked Nov 5, 2026201-500207 contacts →

Indirect evidence

“Girne Amerikan Üniversitesi Kuruluşu”

Source: RevenueBase Database · checked Nov 5, 2026
5Indirect evidenceBursa, TürkiyeHQ checked Nov 5, 2026201-500125 contacts →

Indirect evidence

“Sizin logonuzdaki kuşların en arkada olanları ilkokul öğrencilerini temsil etsin dedi bu işlerden anlayan bir arkadaşımız.”

Source: RevenueBase Database · checked Nov 5, 2026
6Indirect evidenceBeylikdüzü, TürkiyeHQ checked Nov 5, 202651-20098 contacts →

Indirect evidence

“Yaşamın, eğitimin, sanatın, sporun her boyutu anaokulundan liseye Bilim Yaşam Okullarında.”

Source: RevenueBase Database · checked Nov 5, 2026
7Indirect evidenceİstanbul, TürkiyeHQ checked Nov 5, 2026201-50069 contacts →

Indirect evidence

“1985 yılında Sayın Bedrettin Dalan tarafından kurulan İSTEK Vakfı, Atatürk ilke ve devrimleri doğrultusunda, çağdaş ve girişimci nesiller yetiştirmektedir.”

Source: RevenueBase Database · checked Nov 5, 2026
8Indirect evidenceCorlu, TürkiyeHQ checked Nov 5, 202651-20067 contacts →

Indirect evidence

“TED Meşalesi Çorlu'da!”

Source: RevenueBase Database · checked Nov 5, 2026
9Indirect evidenceFatih, TürkiyeHQ checked Nov 5, 202651-20039 contacts →

Indirect evidence

“Anasınıfı, İlkokul, Ortaokul, Anadolu Lisesi, Fen Lisesi”

Source: RevenueBase Database · checked Nov 5, 2026
10Indirect evidenceKocaeli, TürkiyeHQ checked Nov 5, 202651-20039 contacts →

Indirect evidence

“Eğitim sürecinin en önemli bölümü olan ilk ve ortaöğretim kısmını tamamen kapsayarak anaokulundan, 12.sınıfa kadar eğitim veren okulumuz, başta şehrimizin özlediği gönülleri…”

Source: RevenueBase Database · checked Nov 5, 2026
11Indirect evidenceİstanbul, TürkiyeHQ checked Nov 5, 202651-20036 contacts →

Indirect evidence

“Anaokul-İlkokul-Ortaokul-Lise-Lise Kurs.”

Source: RevenueBase Database · checked Nov 5, 2026
12Indirect evidenceKırıkkale Merkez/kırıkkale, TürkiyeHQ checked Nov 5, 202611-5032 contacts →

Indirect evidence

Source: RevenueBase Database · checked Nov 5, 2026
13Indirect evidenceİstanbul/küçükçekmece, TürkiyeHQ checked Nov 5, 202651-20028 contacts →

Indirect evidence

“Anaokulu İlkokul Ortaokul Anadolu Lisesi Fen Lisesi”

Source: RevenueBase Database · checked Nov 5, 2026
14Indirect evidenceKocaeli̇, TürkiyeHQ checked Nov 5, 2026501-1,00028 contacts →

Indirect evidence

“Eğitim alanında yüksek kalite ve standartta bir hizmet verebilmek için 2013 yılında Deva Sağlık Meslek, 2014 yılında Deva Anadolu ve 2017 yılında Deva Akşam Lisesi ile çıktığımız…”

Source: RevenueBase Database · checked Nov 5, 2026
15Indirect evidenceEskişehir, TürkiyeHQ checked Nov 5, 2026201-50026 contacts →

Indirect evidence

“Eskişehir Gelişim Okulları, kurulduğu günden itibaren, örnek uygulamalarıyla, hayata ve üst eğitim kurumlarına hazırladığı öğrencileriyle, Türkiye'de kazandığı sanat, spor, bilim…”

Source: RevenueBase Database · checked Nov 5, 2026
16Indirect evidenceOrtahisar/trabzon, TürkiyeHQ checked Nov 5, 202611-5024 contacts →

Indirect evidence

“TED Trabzon Koleji is a primary/secondary education company based out of Soğuksu, Saygı Sk.”

Source: RevenueBase Database · checked Nov 5, 2026
17Strong evidenceYıldırım, TürkiyeHQ checked Nov 5, 202651-20022 contacts →

Strong evidence

“Kindergarten, primary school, middle school, anatolian high school, foreign student exam, university preparatory course center”

Source: RevenueBase Database · checked Nov 5, 2026
18Indirect evidenceBüyükçekmece/i̇stanbul, TürkiyeHQ checked Nov 5, 202651-20020 contacts →

Indirect evidence

“TEMA EĞİTİM KURUMLARI is a primary/secondary education company based out of Pınartepe Mah.”

Source: RevenueBase Database · checked Nov 5, 2026
19Indirect evidenceKadıköy/i̇stanbul, TürkiyeHQ checked Nov 5, 202611-5018 contacts →

Indirect evidence

Source: RevenueBase Database · checked Nov 5, 2026
20Indirect evidenceDüzce, TürkiyeHQ checked Nov 5, 202611-5014 contacts →

Indirect evidence

Source: RevenueBase Database · checked Nov 5, 2026
21Indirect evidenceTürkiyeHQ checked Nov 5, 202651-20012 contacts →

Indirect evidence

“Beylikdüzü Amerikan Kültür Koleji is a primary/secondary education company based out of Kavaklı Mahallesi, Deniz Aktaş Caddesi No:30, Beylikdüzü/İstanbul, Turkey.”

Source: RevenueBase Database · checked Nov 5, 2026
22Indirect evidenceKarabük Merkez/karabük, TürkiyeHQ checked Nov 5, 202611-5010 contacts →

Indirect evidence

Source: RevenueBase Database · checked Nov 5, 2026
23Indirect evidenceOsmangazi, TürkiyeHQ checked Nov 5, 2026201-5008 contacts →

Indirect evidence

“Idea College offers unique and remarkable opportunities for its students.”

Source: RevenueBase Database · checked Nov 5, 2026
24Indirect evidenceNiğde Merkez/niğde, TürkiyeHQ checked Nov 5, 202651-2007 contacts →

Indirect evidence

“ODTÜ Geliştirme Vakfı Özel Niğde Okulları is a primary and secondary education institution.”

Source: RevenueBase Database · checked Nov 5, 2026
25Indirect evidenceAlanya/antalya, TürkiyeHQ checked Nov 5, 202611-507 contacts →

Indirect evidence

Source: RevenueBase Database · checked Nov 5, 2026

Showing 25 of 377 high schools based in Türkiye

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High schools based in Türkiye at a glance

As of Nov 5, 2026
16.5%Verified-email coverage
12.6Average contacts per company
11-50Median size (employees)
6.9%Largest-city concentration · Istanbul
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
157
11-50
65
51-200
77
201-500
23
501-1,000
8
1,001-5,000
6
5,001-10,000
2
10001+
6

Email recency for this list is measured worldwide rather than for Türkiye, so it is reported there. Company counts and contact totals on this page are exact for Türkiye, over 377 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 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.
What qualifies
Companies headquartered in Türkiye 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. Companies headquartered outside Türkiye 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, 787 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 November 5, 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.

Frequently asked

How many high schools are based in Türkiye?

The directory lists 377 high schools based in Türkiye.

How can I find contacts at high schools?

The directory includes 4,756 contacts and 787 email addresses associated with listed high schools.

Which city has the most high schools in the list?

Istanbul is the single most-represented city among the companies on the list.

Ready to reach these companies? Verified emails and direct dials for all 377 high schools based in Türkiye. Start with a free account, no credit card.

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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.