Company lists · Data refreshed September 2026

Top 25 International schools based in South Korea

Name: International schools based in South Korea
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 76 companies tracked

RevenueBase identified 76 international schools headquartered in South Korea as of September 2026 and tracks 2,030 professional contacts across them, including 686 with verified work emails. Seoul is the largest hub.

This list covers international schools headquartered in South Korea, 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 20, 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 Sep 20, 2026 86% judged on-target in blind review

76Companies

2,030Contacts tracked

686Verified emails

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The 25 largest international schools based in South Korea

Ranked by team size

Top 25 of 76 international schools based in South Korea, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to international 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Seoul Foreign School	Strong evidence	Seoul, South KoreaHQ checked Sep 20, 2026	201-500	271 contacts →
	Strong evidence “Seoul Foreign School (SFS), an international independent school in Seoul, South Korea, was established in 1912.” Source: RevenueBase Database · checked Sep 20, 2026
2	Branksome Hall Asia	Strong evidence	Seogwipo City, South KoreaHQ checked Sep 20, 2026	201-500	174 contacts →
	Strong evidence “South Korea’s leading independent, full-continuum International Baccalaureate (IB) World School, offering our students academic excellence in tandem with unmatched commitments to…” Source: RevenueBase Database · checked Sep 20, 2026
3	Gyeonggi Suwon International School Gsis	Strong evidence	Suwon-city, South KoreaHQ checked Sep 20, 2026	51-200	131 contacts →
	Strong evidence “Gyeonggi Suwon International School (GSIS) is an International Baccalaureate Organization (IBO) based Pre-K to 12th Grade program located in Suwon, South Korea.” Source: RevenueBase Database · checked Sep 20, 2026
4	Dwight School Seoul	Partial evidence	Seoul, South KoreaHQ checked Sep 20, 2026	51-200	116 contacts →
	Partial evidence “Dwight School Seoul opened in August 2012 with Dwight School campuses in New York, USA; London, UK; Shanghai, China and Dubai, UAE.” Source: RevenueBase Database · checked Sep 20, 2026
5	Taejon Christian International School	Strong evidence	Daejeon, South KoreaHQ checked Sep 20, 2026	51-200	116 contacts →
	Strong evidence “TCIS is one of the best international schools in Korea for a wide variety of families.” Source: RevenueBase Database · checked Sep 20, 2026
6	Dulwich College Seoul	Partial evidence	Seoul, South KoreaHQ checked Sep 20, 2026	51-200	108 contacts →
	Partial evidence “Dulwich College is one of the UK's oldest independent schools, founded in South London as a boys’ school in 1619.” Source: RevenueBase Database · checked Sep 20, 2026
7	International School Of Busan	Strong evidence	Busan, South KoreaHQ checked Sep 20, 2026	51-200	105 contacts →
	Strong evidence “The International School of Busan (ISB) is a leading not-for-profit international school in South Korea’s vibrant second-largest city.” Source: RevenueBase Database · checked Sep 20, 2026
8	Asia Pacific International School	Strong evidence	Seoul, South KoreaHQ checked Sep 20, 2026	51-200	100 contacts →
	Strong evidence “Asia Pacific International School (APIS) has established a purpose-driven global network of campuses under one school: our East Asia campus in Seoul, South Korea, and West campus…” Source: RevenueBase Database · checked Sep 20, 2026
9	Korea International School, Jeju Campus	Strong evidence	Jeju-do, South KoreaHQ checked Sep 20, 2026	51-200	98 contacts →
	Strong evidence “Korea International School, Jeju Campus (KISJ) is South Korea's first international boarding school.” Source: RevenueBase Database · checked Sep 20, 2026
10	British Education Korea	Indirect evidence	Seoul, South KoreaHQ checked Sep 20, 2026	51-200	40 contacts →
	Indirect evidence “BEK provides a full British education in Seoul, from 18 months to 18 years with iGCSE and A Levels.” Source: RevenueBase Database · checked Sep 20, 2026
11	Lycée Français DE Séoul	Indirect evidence	Séoul, South KoreaHQ checked Sep 20, 2026	51-200	39 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
12	Daegu International School	Strong evidence	Daegu, South KoreaHQ checked Sep 20, 2026	11-50	34 contacts →
	Strong evidence “Daegu International School (DIS) is a fully licensed and accredited international school in Daegu, South Korea.” Source: RevenueBase Database · checked Sep 20, 2026
13	Seoul Academy	Partial evidence	Seoul, South KoreaHQ checked Sep 20, 2026	51-200	30 contacts →
	Partial evidence “Seoul Academy is a private day school located in Daechi-dong, South Korea with a mission to provide all students with vast opportunities for learning and community involvement by…” Source: RevenueBase Database · checked Sep 20, 2026
14	Korea Foreign School	Partial evidence	Seoul, South KoreaHQ checked Sep 20, 2026	11-50	21 contacts →
	Partial evidence “Korea Foreign School is accredited by the Seoul Metropolitan Office of Education (SMOE) and the Western Association of Schools and Colleges (WASC).” Source: RevenueBase Database · checked Sep 20, 2026
15	Korea Kent Foreign School	Partial evidence	Seoul, South KoreaHQ checked Sep 20, 2026	11-50	18 contacts →
	Partial evidence “Korea Kent Foreign School was founded in 1993 for the explicit purpose of providing excellent education conducted in English for the foreign students residing in Korea.” Source: RevenueBase Database · checked Sep 20, 2026
16	Calvin Manitoba International School	Strong evidence	인천, South KoreaHQ checked Sep 20, 2026	51-200	14 contacts →
	Strong evidence “Calvin Manitoba International School is a K-12 co-educational day school registered as a Foreign Educational Institution.” Source: RevenueBase Database · checked Sep 20, 2026
17	Kwangju Foreign School	Partial evidence	Gwangju, South KoreaHQ checked Sep 20, 2026	11-50	14 contacts →
	Partial evidence “Kwangju Foreign School (KFS) is a private foreign school for students from Pre-Kindergarten to Grade 12.” Source: RevenueBase Database · checked Sep 20, 2026
18	Global Prodigy Academy	Strong evidence	Jeonju, South KoreaHQ checked Sep 20, 2026	11-50	13 contacts →
	Strong evidence “Global Prodigy Academy, accredited by the Western Association of Schools and Colleges, is a small and dynamic international school serving the educational needs of Korean and…” Source: RevenueBase Database · checked Sep 20, 2026
19	Lycée International Xavier	Indirect evidence	Séoul, South KoreaHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
20	International Christian School-Pyeongtaek	Strong evidence	Pyeongtaek, South KoreaHQ checked Sep 20, 2026	11-50	10 contacts →
	Strong evidence “The International Christian School-Pyeongtaek (ICSP) is a not-for-profit school offering a balanced K-12 American-style education from a biblical worldview to the international…” Source: RevenueBase Database · checked Sep 20, 2026
21	Gyeonggi Academy Of Foreign Languages	Partial evidence	의왕시, South KoreaHQ checked Sep 20, 2026	201-500	8 contacts →
	Partial evidence “Gyeonggi Academy of Foreign Languages (GAFL) is a private preparatory high school located in Uiwang-si, Gyeonggi-do, Korea.” Source: RevenueBase Database · checked Sep 20, 2026
22	Bloomsbury Education	Indirect evidence	Gangnam-gu, South KoreaHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “Bloomsbury Education is a premier education service company specializing in the niche market of premium private education in Korea.” Source: RevenueBase Database · checked Sep 20, 2026
23	SIE Central	Indirect evidence	Seoul, South KoreaHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “SIE Central is an English language educational program based in Seoul, focused on helping students grow through structured learning, strong relationships, and a supportive…” Source: RevenueBase Database · checked Sep 20, 2026
24	애플어학원 Apple English	Indirect evidence	Namyangju-si, South KoreaHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “A Perfect Place for Learning English In 2015, Mr.” Source: RevenueBase Database · checked Sep 20, 2026
25	Westminster Canadian Academy	Partial evidence	Gwacheon-Si, South KoreaHQ checked Sep 20, 2026	11-50	5 contacts →
	Partial evidence “Westminster Canadian Academy (WCA) is a K-12 educational schooling cooperative located in the city Gwacheon - just south of Seoul.” Source: RevenueBase Database · checked Sep 20, 2026

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: international 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 international schools.
Partial evidence: Its own public description names part of international schools, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name international 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 76 international schools based in South Korea

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International schools based in South Korea at a glance

As of Sep 20, 2026

33.8%Verified-email coverage

26.7Average contacts per company

51-200Median size (employees)

38.2%Largest-city concentration · Seoul

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for South Korea, so it is reported there. Company counts and contact totals on this page are exact for South Korea, over 76 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 international 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 South Korea whose own description of what they do matches “international 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 international 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 international schools, and records with no verified work email. Companies headquartered outside South Korea 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, 686 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 20, 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.

International schools by metro

International schools in Seoul29

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 international 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 international schools are there based in South Korea?

RevenueBase identified 76 international schools headquartered in South Korea 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?

Seoul Foreign School, headquartered in Seoul, tops this list with the largest team on record.

Which city has the most international schools?

Seoul leads with 29 headquartered companies, followed by Seoul Seoul (4) and Incheon (3).

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 686 verified decision-maker contacts tracked across these 76 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 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 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.