Company lists · Data refreshed September 2026
Top 25 Online language tutoring companies worldwide
RevenueBase identified 7,603 online language tutoring companies worldwide as of September 2026 and tracks 165,209 professional contacts across them, including 6,626 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.
This list covers online language tutoring companies 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 20, 2026. Country and city lists for online language tutoring companies 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 online language tutoring companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 13,040 contacts → | ||||
Indirect evidence “We power people’s progress.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 7,969 contacts → | ||||
Partial evidence “VIPKid is a global education technology company that connects children with the world’s best teachers for real-time online English immersion learning.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 6,252 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 5,890 contacts → | ||||
Partial evidence “Varsity Tutors, a Nerdy (NYSE: NRDY) company, is a leading platform for live online learning, with a mission to transform the way people learn through technology.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 4,171 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 3,608 contacts → | ||||
Strong evidence “What We Do italki is the global language learning marketplace that brings students and teachers together for 1-on-1 and Group-class online language lessons.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 3,459 contacts → | ||||
Partial evidence “Live online classes for joyful learning.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 3,273 contacts → | ||||
Partial evidence “Berlitz Corporation is a world-leading language and cultural training provider with over 140 years of experience.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 2,572 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 2,365 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2,180 contacts → | ||||
Partial evidence “Academic Society Online, or Acadsoc, is an international one-stop shop for ESL learning and education consultancy online.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,672 contacts → | ||||
Indirect evidence “Founded in 2011, headquartered in Singapore, 51Talk is a world leading EdTech company.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 1,580 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 1,566 contacts → | ||||
Strong evidence “RareJob is one of the biggest online English tutorial companies both in Japan and the Philippines, and we are continuously growing.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 1,140 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1,111 contacts → | ||||
Strong 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 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 931 contacts → | ||||
Partial evidence “TutorABC is the world’s number one online platform for learning English and Chinese.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 889 contacts → | ||||
Indirect evidence “Tutlo to najszybciej rozwijająca się platforma do nauki języka angielskiego w Polsce.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 681 contacts → | ||||
Indirect evidence “UPTIME - Communication in English revolutionized the Brazilian market through its innovative methodology and its unique differentials.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 627 contacts → | ||||
Partial evidence “We transform how the world learns languages.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 609 contacts → | ||||
Indirect evidence “goFLUENT acquired the assets of Learnship Networks GmbH on December 1st, 2025.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 553 contacts → | ||||
Indirect evidence “La vida no es listen and repeat’.” Source: RevenueBase Database · checked Sep 20, 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: online language tutoring companies. 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 online language tutoring companies.
- Partial evidence
- Its own public description names part of online language tutoring companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name online language tutoring companies. 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 7,603 online language tutoring companies worldwide
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Online language tutoring companies worldwide at a glance
As of Sep 20, 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 online language tutoring companies, 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 online language tutoring companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “online language tutoring companies”. 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 online language tutoring companies), 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 online language tutoring companies, 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, 6,626 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.
Online language tutoring companies by location
17 lists · largest firstEvery Online language tutoring companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Online language tutoring companies based in Brazil1,025
- Online language tutoring companies based in the United States521
- Online language tutoring companies based in Spain436
- Online language tutoring companies based in the United Kingdom387
- Online language tutoring companies based in India313
- Online language tutoring companies based in Poland227
- Online language tutoring companies based in France204
- Online language tutoring companies based in Italy187
- Online language tutoring companies based in Mexico158
- Online language tutoring companies based in Canada155
- Online language tutoring companies based in Germany155
- Online language tutoring companies based in Türkiye134
- Online language tutoring companies based in Argentina130
- Online language tutoring companies based in Chile66
- Online language tutoring companies based in Switzerland65
- Online language tutoring companies based in Israel36
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 online language tutoring companies, 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 online language tutoring companies are there worldwide?
RevenueBase identified 7,603 online language tutoring companies 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?
Preply, headquartered in Brookline, tops this list with the largest team on record.
Which country has the most online language tutoring companies?
Brazil leads with 1,025 companies, followed by the United States (521) and Spain (436). Every online language tutoring companies list by country and city is linked on this page.
Which city has the most online language tutoring companies?
Sao Paulo leads with 248 headquartered companies, followed by London (179) and Madrid (94).
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 6,626 verified decision-maker contacts tracked across these 7,603 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.