Company lists · Data refreshed September 2026

Top 25 English as second language platforms worldwide

Name: English as second language platforms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 7,968 companies tracked

RevenueBase identified 7,968 english as second language platforms worldwide as of September 2026 and tracks 123,619 professional contacts across them, including 7,545 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.

This list covers english as second language platforms 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 28, 2026. Country and city lists for english as second language platforms 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

7,968Companies

123,619Contacts tracked

7,545Verified emails

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The 25 largest english as second language platforms worldwide

Ranked by team size

Top 25 of 7,968 english as second language platforms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to english as second language platforms: 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	51talk Philippines	Strong evidence	PhilippinesHQ checked Sep 28, 2026	1,001-5,000	6,252 contacts →
	Strong evidence “51Talk Online Education Group (NYSE: COE) is a global online education platform with core expertise in online English education.” Source: RevenueBase Database · checked Sep 28, 2026
2	Wall Street English	Strong evidence	Barcelona, SpainHQ checked Sep 28, 2026	1,001-5,000	4,171 contacts →
	Strong evidence “We are Wall Street English, the premier provider of English language instruction for individuals and corporate clients around the world.” Source: RevenueBase Database · checked Sep 28, 2026
3	Cambly INC	Partial evidence	San Francisco, United StatesHQ checked Sep 28, 2026	n/a	2,572 contacts →
	Partial evidence “The Cambly app gives English learners instant 1-on-1 access to friendly native speakers over video chat 24/7.” Source: RevenueBase Database · checked Sep 28, 2026
4	Cultura Inglesa	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	501-1,000	2,567 contacts →
	Indirect evidence “A Cultura Inglesa é uma empresa inovadora e que sonha em projetar o Brasil no cenário global através da educação, formando cada vez mais cidadãos confiantes e fluentes no inglês.” Source: RevenueBase Database · checked Sep 28, 2026
5	Skyeng	Partial evidence	Aglandjia, CyprusHQ checked Sep 28, 2026	1,001-5,000	2,365 contacts →
	Partial evidence “Skyeng is the leading EdTech company in Eastern Europe, where we believe new technology can and should be a force for transformation in education as well as contribute to a…” Source: RevenueBase Database · checked Sep 28, 2026
6	Acadsoc LTD	Indirect evidence	Muntinlupa, PhilippinesHQ checked Sep 28, 2026	1,001-5,000	2,180 contacts →
	Indirect evidence “Academic Society Online, or Acadsoc, is an international one-stop shop for ESL learning and education consultancy online.” Source: RevenueBase Database · checked Sep 28, 2026
7	Cambridge English	Partial evidence	Cambridge, United KingdomHQ checked Sep 28, 2026	501-1,000	1,689 contacts →
	Partial evidence “At Cambridge University Press & Assessment, we help millions of people learn English and prove their skills to the world.” Source: RevenueBase Database · checked Sep 28, 2026
8	51talk	Indirect evidence	SingaporeHQ checked Sep 28, 2026	1,001-5,000	1,672 contacts →
	Indirect evidence “Founded in 2011, headquartered in Singapore, 51Talk is a world leading EdTech company.” Source: RevenueBase Database · checked Sep 28, 2026
9	ENGOO	Partial evidence	Seoul, South KoreaHQ checked Sep 28, 2026	10001+	1,637 contacts →
	Partial evidence “With engaging 1-on-1 language lessons and materials based on our students' needs and interests, Engoo brings people together and helps them understand one another through the…” Source: RevenueBase Database · checked Sep 28, 2026
10	Wizard By Pearson	Partial evidence	BrazilHQ checked Sep 28, 2026	10001+	1,580 contacts →
	Partial evidence “A partir de uma simples escola iniciou-se a construção de uma grandiosa rede de ensino, que já atravessou as fronteiras do nosso país.” Source: RevenueBase Database · checked Sep 28, 2026
11	Gofluent	Partial evidence	Geneva, United StatesHQ checked Sep 28, 2026	501-1,000	1,198 contacts →
	Partial evidence “goFLUENT accelerates language learning and assessment by delivering hyper-personalized solutions that blend technology, content, and human interaction available globally on any…” Source: RevenueBase Database · checked Sep 28, 2026
12	study.com	Indirect evidence	Mountain View, CA, United StatesHQ checked Sep 28, 2026	n/a	1,187 contacts →
	Indirect evidence “Study.com was founded by Adrián Ridner and Ben Wilson to open the door to the life-changing impact of Education for all.” Source: RevenueBase Database · checked Sep 28, 2026
13	Babbel	Partial evidence	Berlin, GermanyHQ checked Sep 28, 2026	501-1,000	1,174 contacts →
	Partial evidence “Driven by the purpose of creating mutual understanding through language, Babbel has been building digital language learning products for consumers and businesses since 2007.” Source: RevenueBase Database · checked Sep 28, 2026
14	Novakid INC	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	1,140 contacts →
	Strong evidence “Novakid is a leading online English learning platform for young learners, and one of the fastest-growing EdTech companies globally.” Source: RevenueBase Database · checked Sep 28, 2026
15	Amazingtalker	Indirect evidence	新北市, TaiwanHQ checked Sep 28, 2026	n/a	1,111 contacts →
	Indirect evidence “AmazingTalker's mission is to democratizes the way of tutoring and empowers anyone to teach and learn any knowledge online.” Source: RevenueBase Database · checked Sep 28, 2026
16	Ringle	Indirect evidence	Seoul, South KoreaHQ checked Sep 28, 2026	n/a	963 contacts →
	Indirect evidence “Two Stanford MBA students started Ringle in January 2015 in an attempt to create jobs for undergraduate and graduate students across America and, ultimately, effectively help…” Source: RevenueBase Database · checked Sep 28, 2026
17	Tutorabc	Strong evidence	City, TaiwanHQ checked Sep 28, 2026	201-500	931 contacts →
	Strong evidence “TutorABC is the world’s number one online platform for learning English and Chinese.” Source: RevenueBase Database · checked Sep 28, 2026
18	tutlo.com	Partial evidence	Warszawa, PolandHQ checked Sep 28, 2026	n/a	889 contacts →
	Partial evidence “Tutlo to najszybciej rozwijająca się platforma do nauki języka angielskiego w Polsce.” Source: RevenueBase Database · checked Sep 28, 2026
19	Alison	Partial evidence	Loughrea, IrelandHQ checked Sep 28, 2026	201-500	733 contacts →
	Partial evidence “Alison is the world's largest free online empowerment platform.” Source: RevenueBase Database · checked Sep 28, 2026
20	Rosetta Stone	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	627 contacts →
	Partial evidence “We transform how the world learns languages.” Source: RevenueBase Database · checked Sep 28, 2026
21	Chungdahm Learning	Indirect evidence	Seoul, South KoreaHQ checked Sep 28, 2026	201-500	614 contacts →
	Indirect evidence “CHUNGDAHM Learning is a market leader in the Korean ESL industry.” Source: RevenueBase Database · checked Sep 28, 2026
22	Linguatec México	Indirect evidence	Guadalajara, MexicoHQ checked Sep 28, 2026	10001+	587 contacts →
	Indirect evidence “Somos un centro de idiomas que se caracteriza por contar con el mejor curso de inglés en México.” Source: RevenueBase Database · checked Sep 28, 2026
23	Twenix	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	51-200	553 contacts →
	Indirect evidence “La vida no es listen and repeat’.” Source: RevenueBase Database · checked Sep 28, 2026
24	Abwaab	Partial evidence	Amman, JordanHQ checked Sep 28, 2026	201-500	545 contacts →
	Partial evidence “Abwaab is an online learning platform that allows students to learn at their own pace, test themselves and get ahead with our expert tutors anytime and anywhere.” Source: RevenueBase Database · checked Sep 28, 2026
25	Lingoace	Indirect evidence	SingaporeHQ checked Sep 28, 2026	1,001-5,000	542 contacts →
	Indirect evidence “LingoAce is an award-winning global education technology company on a mission to nurture confident, globally minded learners through top-notch teachers empowered by technology.” Source: RevenueBase Database · checked Sep 28, 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: english as second language platforms. 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 english as second language platforms.
Partial evidence: Its own public description names part of english as second language platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name english as second language platforms. 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 7,968 english as second language platforms worldwide

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English as second language platforms worldwide at a glance

As of Sep 28, 2026

6.1%Verified-email coverage

15.5Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

4,900

11-50

2,102

51-200

578

201-500

199

501-1,000

1,001-5,000

5,001-10,000

10001+

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 english as second language platforms, 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 english as second language platforms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “english as second language platforms”. 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 english as second language platforms), 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 english as second language platforms, 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, 7,545 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 28, 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.

English as second language platforms by location

25 lists · largest first

Every English as second language platforms 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 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 english as second language platforms, 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 english as second language platforms are there worldwide?

RevenueBase identified 7,968 english as second language platforms 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?

51talk Philippines, headquartered in Philippines, tops this list with the largest team on record.

Which country has the most english as second language platforms?

Brazil leads with 917 companies, followed by the United States (494) and India (433). Every english as second language platforms list by country and city is linked on this page.

Which city has the most english as second language platforms?

Sao Paulo leads with 214 headquartered companies, followed by London (159) and Madrid (85).

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 7,545 verified decision-maker contacts tracked across these 7,968 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 28, 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.