Company lists · Data refreshed September 2026
Top 25 Vocabulary training software companies worldwide
RevenueBase identified 455 vocabulary training software companies worldwide as of September 2026 and tracks 5,773 professional contacts across them, including 1,716 with verified work emails. The United States is the largest market and London the largest hub.
This list covers vocabulary training software 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 29, 2026. Country and city lists for vocabulary training software 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 vocabulary training software companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,803 contacts → | ||||
Indirect evidence “Duolingo is the most downloaded education app in the history of the App Store.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,174 contacts → | ||||
Indirect 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 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 207 contacts → | ||||
Partial evidence “Founded in Montreal, QC in 2002, LRDG is the leading developer and supplier of online language training technology solutions in Canada.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 165 contacts → | ||||
Indirect evidence “Burlington English facilitates lifelong language learning for teachers and students with programmes for young learners, college students, and working professionals.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 114 contacts → | ||||
Partial evidence “Founded in 2002, L Labs is an educational software company that focuses on developing innovative language learning tools.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 87 contacts → | ||||
Indirect evidence “EnglishCentral Philippines Inc.(formerly Langrich-On: Language Proficiency Inc.) was founded in 2010 in Cebu, Philippines and was a Japanese start-up that uses Filipino…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 76 contacts → | ||||
Indirect evidence “InnovativeLanguage.com offers an innovative, fun, and easy to use language learning system that is designed to get you speaking from the very first lesson.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 52 contacts → | ||||
Indirect evidence “iStoria is the world’s most enjoyable way to learn the English language through interesting stories.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 34 contacts → | ||||
Indirect evidence “By creating an inspiring and motivating environment for our teams, we can bring forward the most effectual learning formula for our students in this fast-paced modern world." –…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 31 contacts → | ||||
Partial evidence “Membean is a vocabulary program that builds word consciousness.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 30 contacts → | ||||
Indirect evidence “Connecting with another language is a difficult task, especially when you’re just starting out.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 29 contacts → | ||||
Indirect evidence “Words Worth blends the web and mobile technologies to deliver an engaging, interactive, and stimulating English language learning system for teachers and students.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 27 contacts → | ||||
Indirect evidence “phase6 ist ein Unternehmen der EdTech-Branche und Deutschlands führender Vokabeltrainer.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 26 contacts → | ||||
Indirect evidence “FlashAcademy® is an award-winning digital platform for schools, colleges and employers to accelerate English as an additional language for learners and employees.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 26 contacts → | ||||
Indirect evidence “Linguahouse.com is a leading online provider of English and Spanish language teaching resources, with over downloadable worksheets and nearly 1 million registered users worldwide.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 26 contacts → | ||||
Indirect evidence “Lingualeo is a personal online service for English language learning.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 25 contacts → | ||||
Partial evidence “Lingua Attack is an online language learning platform and resource designed to motivate and engage language learners in schools, universities, training centres and companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 contacts → | ||||
Partial evidence “WordUp is revolutionising the way English vocabulary is learned around the world.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 21 contacts → | ||||
Indirect evidence “The ability to communicate in English and other languages is extremely appreciated in business and on the job market today.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 21 contacts → | ||||
Indirect evidence “eJOY is your ultimate Knowlege and English learning tool.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 19 contacts → | ||||
Indirect evidence “Founded in 1991 by entrepreneurs Dick Howeson and Andrew Ashe, uTalk is driven by a passion for enjoying adventures in languages anywhere in the world.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 19 contacts → | ||||
Partial evidence “eReflect is a world leader in self improvement software, with our products currently being used by tens of thousands of happy customers in over 110 countries.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 19 contacts → | ||||
Partial evidence “FunEasyLearn is the world’s most powerful vocabulary builder and the most accessible language learning app.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 15 contacts → | ||||
Indirect evidence “KwizIQ is an A.I."language coach" that learns what students know and don't know in order to help them improve their language skills faster.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 15 contacts → | ||||
Indirect evidence “Promentor Solution was established in 1987.” Source: RevenueBase Database · checked Sep 29, 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: vocabulary training software 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 vocabulary training software companies.
- Partial evidence
- Its own public description names part of vocabulary training software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name vocabulary training software 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 455 vocabulary training software companies worldwide
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Vocabulary training software companies worldwide at a glance
As of Sep 29, 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 vocabulary training software 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 vocabulary training software companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “vocabulary training software 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 vocabulary training software 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 vocabulary training software 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, 1,716 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 29, 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.
Vocabulary training software companies by location
3 lists · largest firstEvery Vocabulary training software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 vocabulary training software 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 vocabulary training software companies are there worldwide?
RevenueBase identified 455 vocabulary training software 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?
Duolingo, headquartered in Pittsburgh, tops this list with the largest team on record.
Which country has the most vocabulary training software companies?
The United States leads with 50 companies, followed by the United Kingdom (32) and India (29). Every vocabulary training software companies list by country and city is linked on this page.
Which city has the most vocabulary training software companies?
London leads with 17 headquartered companies, followed by Barcelona (6) and Sao Paulo (6).
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 1,716 verified decision-maker contacts tracked across these 455 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 29, 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.