Company lists · Data refreshed November 2026
Top 25 Tefl certification providers worldwide
RevenueBase identified 687 company matches for tefl certification providers worldwide as of November 2026 and tracks 12,646 professional contacts across them, including 638 with verified work emails. The United Kingdom is the largest market and London the largest hub.
This list covers company matches for tefl certification providers worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for tefl certification providers follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 tefl certification providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 363 contacts → | ||||
Exact match “My English School è una realtà innovativa orientata all'apprendimento della lingua inglese che pone al centro della didattica le esigenze e i bisogni reali degli interessati.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 219 contacts → | ||||
Exact match “EF Education First is seeking qualified native English speaking teachers to join our academic teams in China.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 173 contacts → | ||||
Exact match “Language Link was founded in London in 1975 and since then it has been teaching students in the UK and several other countries delivering a high-quality learning experience and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 149 contacts → | ||||
Exact match “Great Things Start Here!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 140 contacts → | ||||
Exact match “The TEFL Academy is the world's leading provider of online and face-to-face teaching English as a foreign language (TEFL) courses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 140 contacts → | ||||
Exact match “MediaKids Academy is one of the most recognized TEFL job providers in Thailand, representing over 70 government schools across Northern, Central and North Eastern Thailand.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 130 contacts → | ||||
Exact match “6x Winner of the GoAbroad.com People's Choice Best International Education Organization, 2018, 2021-2025, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 129 contacts → | ||||
Exact match “Menyediakan kelas dan sertifikasi bahasa Inggris secara online Kelas Online - Bahasa Inggris Dasar Karyawan - Bahasa Inggris Dasar Mahasiswa - TOEFL Listening - TOEFL Reading -…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 126 contacts → | ||||
Exact match “The TEFL Org is an internationally recognised, market-leading TEFL training course provider with courses in the UK, Ireland, China and Spain.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 96 contacts → | ||||
Exact match “TEFL Institute TEFL Institute is dedicated to excellence in teaching English abroad.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 95 contacts → | ||||
Exact match “The Anglo Academy, 80 años de experiencia nos respaldan como la institución líder en la enseñanza del idioma inglés.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 95 contacts → | ||||
Exact match “i-to-i TEFL is one of the world’s leading TEFL Course providers, running English-Government regulated training both online and in classroom courses in 10 different countries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 86 contacts → | ||||
Exact match “Since 2007, Teaching House has expanded its education practices globally, providing quality English-teaching education at over 10 centre locations and maintaining an extensive…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 84 contacts → | ||||
Exact match “Online TEFL Course provider and Teacher Placement program.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 78 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 75 contacts → | ||||
Exact match “The Harvest Institute is an accredited International Education Company that focuses on bringing students from all over the world to learn English as a Second Language, our core…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 74 contacts → | ||||
Exact match “Concorde International has over fifty years of experience providing English language courses and teacher training.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 68 contacts → | ||||
Exact match “ITTI (International TEFL Training Institute) is the world’s leading education institution which provides TEFL/TESOL certification for over 15 years in more than 40 countries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 65 contacts → | ||||
Exact match “Grade, найбільший центр міжнародних іспитів з англійської мови та єдиний авторизований Платиновий центр Cambridge English в Україні, заснований у 2008 році.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 62 contacts → | ||||
Exact match “Accredited British training company, providing specialist language training and assessments for companies and organisations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 60 contacts → | ||||
Exact match “IH Cairo Teacher Training Hub Part of IH World Cambridge Assessment English (CELTA & DELTA ) IDP IELTS Testing Center Voxy Partner International House Cairo (IH Cairo) is part of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 54 contacts → | ||||
Exact match “We started out teaching English as a Foreign Language over 15 years ago and TEFL is our passion - it’s what makes us happy!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 51 contacts → | ||||
Exact match “ITI is an internationally recognised Cambridge ESOL teacher training centre and the only Cambridge Assessment (previously UCLES) approved centre for both the CELTA and DELTA…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 50 contacts → | ||||
Exact match “Norwich Institute for Language Education (NILE) is a specialist teacher development institute offering courses and qualifications for English language teachers at every stage of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 50 contacts → | ||||
Exact match “Established in 2010, Amerikan Dili Edebiyatı Yabancı Dil Kursları A.Ş.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “tefl certification providers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 687 tefl certification providers worldwide
See the full list, filter by size, metro and specialty, and access 638 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Tefl certification providers worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for tefl certification providers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “tefl certification providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 638 professional contacts with verified work emails across the full matched dataset. 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 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Tefl certification providers by location
3 lists · largest firstEvery Tefl certification providers 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 SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “tefl certification providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many tefl certification providers are there worldwide?
RevenueBase identified 687 company matches for tefl certification providers worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
MY English School Italia tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most tefl certification providers?
The United Kingdom leads with 75 companies, followed by Spain (49) and the United States (46). Every tefl certification providers list by country and city is linked on this page.
Which city has the most tefl certification providers?
London leads with 27 company records, followed by Madrid (16) and Ho Chi Minh City (6).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 638 professional contacts with verified work emails tracked across these 687 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 687 tefl certification providers worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
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 SmartSearch, 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.
More company lists
Company intelligence · public preview
Top 25 tefl certification providers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 687 matching company records for tefl certification providers worldwide, with 12,646 tracked contacts and 638 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 tefl certification providers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  MY English School Italiamyes.itHQ: Florence, ItalyReported employees: 201-500 | Florence, Italy | 201-500 | Exact match | 363 contacts → |
“My English School è una realtà innovativa orientata all'apprendimento della lingua inglese che pone al centro della didattica le esigenze e i bisogni reali degli interessati.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: Shanghai, ChinaReported employees: 1,001-5,000 | Shanghai, China | 1,001-5,000 | Exact match | 219 contacts → |
“EF Education First is seeking qualified native English speaking teachers to join our academic teams in China.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Language Link Russialanguagelink.ruHQ: Moscow, RussiaReported employees: 501-1,000 | Moscow, Russia | 501-1,000 | Exact match | 173 contacts → |
“Language Link was founded in London in 1975 and since then it has been teaching students in the UK and several other countries delivering a high-quality learning experience and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  BSC Educationbsceducation.comHQ: Birkenhead, United KingdomReported employees: 51-200 | Birkenhead, United Kingdom | 51-200 | Exact match | 149 contacts → |
“Great Things Start Here!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  The Tefl Academytheteflacademy.comHQ: Dublin, United StatesReported employees: 11-50 | Dublin, United States | 11-50 | Exact match | 140 contacts → |
“The TEFL Academy is the world's leading provider of online and face-to-face teaching English as a foreign language (TEFL) courses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Mediakids Academymediakidsacademy.comHQ: Klongluang, ThailandReported employees: 201-500 | Klongluang, Thailand | 201-500 | Exact match | 140 contacts → |
“MediaKids Academy is one of the most recognized TEFL job providers in Thailand, representing over 70 government schools across Northern, Central and North Eastern Thailand.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  International Tefl Academyinternationalteflacademy.comHQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 130 contacts → |
“6x Winner of the GoAbroad.com People's Choice Best International Education Organization, 2018, 2021-2025, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  YEC Yureka Edukasi Ciptayec.co.idHQ: Kabupaten Sleman, IndonesiaReported employees: 11-50 | Kabupaten Sleman, Indonesia | 11-50 | Exact match | 129 contacts → |
“Menyediakan kelas dan sertifikasi bahasa Inggris secara online Kelas Online - Bahasa Inggris Dasar Karyawan - Bahasa Inggris Dasar Mahasiswa - TOEFL Listening - TOEFL Reading -…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Inverness, United KingdomReported employees: 11-50 | Inverness, United Kingdom | 11-50 | Exact match | 126 contacts → |
“The TEFL Org is an internationally recognised, market-leading TEFL training course provider with courses in the UK, Ireland, China and Spain.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Tefl Instituteteflinstitute.comHQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 96 contacts → |
“TEFL Institute TEFL Institute is dedicated to excellence in teaching English abroad.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  The Anglotheangloacademy.mxHQ: Mexico City, MexicoReported employees: 201-500 | Mexico City, Mexico | 201-500 | Exact match | 95 contacts → |
“The Anglo Academy, 80 años de experiencia nos respaldan como la institución líder en la enseñanza del idioma inglés.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  I-To-I Tefli-to-i.comHQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 95 contacts → |
“i-to-i TEFL is one of the world’s leading TEFL Course providers, running English-Government regulated training both online and in classroom courses in 10 different countries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Teaching Houseteachinghouse.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 86 contacts → |
“Since 2007, Teaching House has expanded its education practices globally, providing quality English-teaching education at over 10 centre locations and maintaining an extensive…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Tefl Universaltefluniversal.comHQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 84 contacts → |
“Online TEFL Course provider and Teacher Placement program.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Idioma Internacionalidiomacr.comHQ: Cantón Central, Costa RicaReported employees: 51-200 | Cantón Central, Costa Rica | 51-200 | Exact match | 78 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 |  Harvest English Instituteharvest.netHQ: Newark, NJ, United StatesReported employees: 51-200 | Newark, NJ, United States | 51-200 | Exact match | 75 contacts → |
“The Harvest Institute is an accredited International Education Company that focuses on bringing students from all over the world to learn English as a Second Language, our core…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Concorde Internationalconcorde-int.comHQ: Canterbury, United KingdomReported employees: 51-200 | Canterbury, United Kingdom | 51-200 | Exact match | 74 contacts → |
“Concorde International has over fifty years of experience providing English language courses and teacher training.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  ITTIinternationaltefltraininginstitute.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 68 contacts → |
“ITTI (International TEFL Training Institute) is the world’s leading education institution which provides TEFL/TESOL certification for over 15 years in more than 40 countries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Grade Екзаменаційний Центрgrade.uaHQ: Київ, UkraineReported employees: 51-200 | Київ, Ukraine | 51-200 | Exact match | 65 contacts → |
“Grade, найбільший центр міжнародних іспитів з англійської мови та єдиний авторизований Платиновий центр Cambridge English в Україні, заснований у 2008 році.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Professional Language Solutionslangsols.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 62 contacts → |
“Accredited British training company, providing specialist language training and assessments for companies and organisations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  International House Cairoihcairoeg.comHQ: Giza, EgyptReported employees: 11-50 | Giza, Egypt | 11-50 | Exact match | 60 contacts → |
“IH Cairo Teacher Training Hub Part of IH World Cambridge Assessment English (CELTA & DELTA ) IDP IELTS Testing Center Voxy Partner International House Cairo (IH Cairo) is part of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Tefl UKtefluk.comHQ: Warrington, United KingdomReported employees: Not recorded | Warrington, United Kingdom | Not recorded | Exact match | 54 contacts → |
“We started out teaching English as a Foreign Language over 15 years ago and TEFL is our passion - it’s what makes us happy!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  International Training Instituteiti-istanbul.comHQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 51 contacts → |
“ITI is an internationally recognised Cambridge ESOL teacher training centre and the only Cambridge Assessment (previously UCLES) approved centre for both the CELTA and DELTA…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  NILEnile-elt.comHQ: Norwich, United KingdomReported employees: 11-50 | Norwich, United Kingdom | 11-50 | Exact match | 50 contacts → |
“Norwich Institute for Language Education (NILE) is a specialist teacher development institute offering courses and qualifications for English language teachers at every stage of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Amerikan Dili Edebiyatı Yabancı DIL Kurslarıamerikandiliedebiyati.comHQ: Izmir, TürkiyeReported employees: 51-200 | Izmir, Türkiye | 51-200 | Exact match | 50 contacts → |
“Established in 2010, Amerikan Dili Edebiyatı Yabancı Dil Kursları A.Ş.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 687 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Tefl certification providers: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
682 records in the displayed employee bands.
5 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 687 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Tefl certification providers by location
3 lists · largest firstEvery Tefl certification providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for tefl certification providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many tefl certification providers did RevenueBase find worldwide?
The saved snapshot records 687 matching company records, 12,646 tracked contacts and 638 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 tefl certification providers worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/tefl-certification-providers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 tefl certification providers worldwide
RevenueBase records 687 matching company records for tefl certification providers worldwide, with 12,646 tracked contacts and 638 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 tefl certification providers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | MY English School Italiamyes.it HQ: Florence, ItalyReported employees: 201-500 | Florence, Italy | 201-500 | Exact match | 363 contacts → |
“My English School è una realtà innovativa orientata all'apprendimento della lingua inglese che pone al centro della didattica le esigenze e i bisogni reali degli interessati.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: Shanghai, ChinaReported employees: 1,001-5,000 | Shanghai, China | 1,001-5,000 | Exact match | 219 contacts → |
“EF Education First is seeking qualified native English speaking teachers to join our academic teams in China.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Language Link Russialanguagelink.ru HQ: Moscow, RussiaReported employees: 501-1,000 | Moscow, Russia | 501-1,000 | Exact match | 173 contacts → |
“Language Link was founded in London in 1975 and since then it has been teaching students in the UK and several other countries delivering a high-quality learning experience and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | BSC Educationbsceducation.com HQ: Birkenhead, United KingdomReported employees: 51-200 | Birkenhead, United Kingdom | 51-200 | Exact match | 149 contacts → |
“Great Things Start Here!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | The Tefl Academytheteflacademy.com HQ: Dublin, United StatesReported employees: 11-50 | Dublin, United States | 11-50 | Exact match | 140 contacts → |
“The TEFL Academy is the world's leading provider of online and face-to-face teaching English as a foreign language (TEFL) courses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Mediakids Academymediakidsacademy.com HQ: Klongluang, ThailandReported employees: 201-500 | Klongluang, Thailand | 201-500 | Exact match | 140 contacts → |
“MediaKids Academy is one of the most recognized TEFL job providers in Thailand, representing over 70 government schools across Northern, Central and North Eastern Thailand.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | International Tefl Academyinternationalteflacademy.com HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 130 contacts → |
“6x Winner of the GoAbroad.com People's Choice Best International Education Organization, 2018, 2021-2025, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | YEC Yureka Edukasi Ciptayec.co.id HQ: Kabupaten Sleman, IndonesiaReported employees: 11-50 | Kabupaten Sleman, Indonesia | 11-50 | Exact match | 129 contacts → |
“Menyediakan kelas dan sertifikasi bahasa Inggris secara online Kelas Online - Bahasa Inggris Dasar Karyawan - Bahasa Inggris Dasar Mahasiswa - TOEFL Listening - TOEFL Reading -…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Inverness, United KingdomReported employees: 11-50 | Inverness, United Kingdom | 11-50 | Exact match | 126 contacts → |
“The TEFL Org is an internationally recognised, market-leading TEFL training course provider with courses in the UK, Ireland, China and Spain.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Tefl Instituteteflinstitute.com HQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 96 contacts → |
“TEFL Institute TEFL Institute is dedicated to excellence in teaching English abroad.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | The Anglotheangloacademy.mx HQ: Mexico City, MexicoReported employees: 201-500 | Mexico City, Mexico | 201-500 | Exact match | 95 contacts → |
“The Anglo Academy, 80 años de experiencia nos respaldan como la institución líder en la enseñanza del idioma inglés.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | I-To-I Tefli-to-i.com HQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 95 contacts → |
“i-to-i TEFL is one of the world’s leading TEFL Course providers, running English-Government regulated training both online and in classroom courses in 10 different countries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Teaching Houseteachinghouse.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 86 contacts → |
“Since 2007, Teaching House has expanded its education practices globally, providing quality English-teaching education at over 10 centre locations and maintaining an extensive…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Tefl Universaltefluniversal.com HQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 84 contacts → |
“Online TEFL Course provider and Teacher Placement program.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Idioma Internacionalidiomacr.com HQ: Cantón Central, Costa RicaReported employees: 51-200 | Cantón Central, Costa Rica | 51-200 | Exact match | 78 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | Harvest English Instituteharvest.net HQ: Newark, NJ, United StatesReported employees: 51-200 | Newark, NJ, United States | 51-200 | Exact match | 75 contacts → |
“The Harvest Institute is an accredited International Education Company that focuses on bringing students from all over the world to learn English as a Second Language, our core…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Concorde Internationalconcorde-int.com HQ: Canterbury, United KingdomReported employees: 51-200 | Canterbury, United Kingdom | 51-200 | Exact match | 74 contacts → |
“Concorde International has over fifty years of experience providing English language courses and teacher training.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | ITTIinternationaltefltraininginstitute.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 68 contacts → |
“ITTI (International TEFL Training Institute) is the world’s leading education institution which provides TEFL/TESOL certification for over 15 years in more than 40 countries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Grade Екзаменаційний Центрgrade.ua HQ: Київ, UkraineReported employees: 51-200 | Київ, Ukraine | 51-200 | Exact match | 65 contacts → |
“Grade, найбільший центр міжнародних іспитів з англійської мови та єдиний авторизований Платиновий центр Cambridge English в Україні, заснований у 2008 році.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Professional Language Solutionslangsols.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 62 contacts → |
“Accredited British training company, providing specialist language training and assessments for companies and organisations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | International House Cairoihcairoeg.com HQ: Giza, EgyptReported employees: 11-50 | Giza, Egypt | 11-50 | Exact match | 60 contacts → |
“IH Cairo Teacher Training Hub Part of IH World Cambridge Assessment English (CELTA & DELTA ) IDP IELTS Testing Center Voxy Partner International House Cairo (IH Cairo) is part of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Tefl UKtefluk.com HQ: Warrington, United KingdomReported employees: Not recorded | Warrington, United Kingdom | Not recorded | Exact match | 54 contacts → |
“We started out teaching English as a Foreign Language over 15 years ago and TEFL is our passion - it’s what makes us happy!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | International Training Instituteiti-istanbul.com HQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 51 contacts → |
“ITI is an internationally recognised Cambridge ESOL teacher training centre and the only Cambridge Assessment (previously UCLES) approved centre for both the CELTA and DELTA…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | NILEnile-elt.com HQ: Norwich, United KingdomReported employees: 11-50 | Norwich, United Kingdom | 11-50 | Exact match | 50 contacts → |
“Norwich Institute for Language Education (NILE) is a specialist teacher development institute offering courses and qualifications for English language teachers at every stage of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Amerikan Dili Edebiyatı Yabancı DIL Kurslarıamerikandiliedebiyati.com HQ: Izmir, TürkiyeReported employees: 51-200 | Izmir, Türkiye | 51-200 | Exact match | 50 contacts → |
“Established in 2010, Amerikan Dili Edebiyatı Yabancı Dil Kursları A.Ş.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 687 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Tefl certification providers: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
682 records in the displayed employee bands.
5 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 687 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Tefl certification providers by location
3 lists · largest firstEvery Tefl certification providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for tefl certification providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many tefl certification providers did RevenueBase find worldwide?
The saved snapshot records 687 matching company records, 12,646 tracked contacts and 638 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 tefl certification providers worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/tefl-certification-providers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗