Company lists · Data refreshed November 2026

Top 25 Esol providers based in the United States

RevenueBase identified 927 company matches for esol providers associated with the United States as of November 2026 and tracks 13,181 professional contacts across them, including 3,186 with verified work emails. New York is the largest hub.

This list covers company matches for esol providers associated with the United States, 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.

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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
927Companies
13,181Contacts tracked
3,186Verified emails
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The 25 largest esol providers based in the United States

Ranked by team size
Top 25 of 927 company matches for esol providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchProvidence, RI, United StatesHQ recorded Nov 6, 20261,001-5,0001,805 contacts →

Exact match

“An urban school department with a student population of students.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAlexandria, VA, United StatesHQ recorded Nov 6, 2026n/a263 contacts →

Exact match

“Founded in 1966, TESOL International Association is a professional community of educators, researchers, administrators, and students committed to advancing excellence in English…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 2026n/a229 contacts →

Exact match

“It’s the leading language school to adult people with an innovative methodology and the best didactic material in the market, Wise Up offers the students the possibility of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026201-500204 contacts →

Exact match

“The Carlos Rosario International Public School is the first adult education charter school in the nation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPaterson, CT, United StatesHQ recorded Nov 6, 202651-200172 contacts →

Exact match

“UCEDA Institute offers a wide range of language training for individuals and businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBoca Raton, FL, United StatesHQ recorded Nov 6, 2026501-1,000155 contacts →

Exact match

“BurlingtonEnglish offers a comprehensive blended program for English language acquisition.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchChicago, IL, United StatesHQ recorded Nov 6, 202651-200130 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
8Exact matchDes Plaines, IL, United StatesHQ recorded Nov 6, 202651-200122 contacts →

Exact match

“We offer Adult Education classes in 4 places: ELC, Orchard Place School, Plainfield school, and at the Rosemont Recreational Center ( GED Classes, Citizenship, Computers, ESL and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPittsburgh, PA, United StatesHQ recorded Nov 6, 202651-200105 contacts →

Exact match

“Literacy Pittsburgh (formerly Greater Pittsburgh Literacy Council) helps create better lives through learning.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchChicago, IL, United StatesHQ recorded Nov 6, 202611-5096 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
11Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026n/a92 contacts →

Exact match

“Washington English Center (WEC) provides affordable English-language instruction and workforce development programs to adult immigrants using volunteers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202651-20088 contacts →

Exact match

“Academy of Hope's mission is to provide high quality education and services that change lives and improve our communities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPasadena, CA, United StatesHQ recorded Nov 6, 202651-20078 contacts →

Exact match

“FLS International has over 30 years of experience in providing a wide range of services to international students during each phase of their educational experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNewark, NJ, United StatesHQ recorded Nov 6, 202651-20075 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
15Exact matchNew York, NY, United StatesHQ recorded Nov 6, 2026201-50068 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
16Exact matchBethesda, MD, United StatesHQ recorded Nov 6, 202611-5067 contacts →

Exact match

“EnGen delivers career-aligned, on-demand English instruction at the scale needed to serve the needs of the U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchFalls Church, VA, United StatesHQ recorded Nov 6, 202611-5063 contacts →

Exact match

“Who We Serve The English Empowerment Center serves nearly 1,500 beginning-level English language and literacy adult learners.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSalt Lake City, UT, United StatesHQ recorded Nov 6, 202611-5062 contacts →

Exact match

“The English Skills Learning Center (ESLC) has been integrating and strengthening communities by breaking language and cultural barriers since 1988.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchJackson Heights, NY, United StatesHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“New York Language Center's mission is twofold: to provide high quality, affordable English classes to international students in a supportive, friendly atmosphere where students…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchRedondo Beach, CA, United StatesHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Redondo Union High School is a primary/secondary education company based out of 631 Vincent Park, Redondo Beach, California, United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLouisville, United StatesHQ recorded Nov 6, 2026n/a58 contacts →

Exact match

“RVF International is a worldwide exchange and education agency that connects native English speakers with teaching jobs in Spain while also securing: 1.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchYork, PA, United StatesHQ recorded Nov 6, 2026501-1,00055 contacts →

Exact match

“Special Education K-12 Public School Support Services (Adams/ Franklin/ York Counties in South Central Pennsylvania Adult Education (GED/ESL/ESL Civics) Professional…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSunny Isles Beach, FL, United StatesHQ recorded Nov 6, 2026201-50053 contacts →

Exact match

“MILA is the perfect choice for international students who want to study abroad in the United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNew York, United StatesHQ recorded Nov 6, 202611-5050 contacts →

Exact match

“Founded in 1973 by Cesar Rennert, Rennert International is a privately-owned language education and communications company that serves the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBuffalo, NY, United StatesHQ recorded Nov 6, 202611-5044 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 927 esol providers based in the United States

See the full list, filter by size, metro and specialty, and access 3,186 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Esol providers based in the United States at a glance

As of Nov 6, 2026
24.2%Verified-email coverage
14.2Average contacts per company
1-10Median size (employees)
5.4%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
478
11-50
319
51-200
94
201-500
17
501-1,000
3
1,001-5,000
7
5,001-10,000
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 927 companies.

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.
What qualifies
Company records associated with the United States whose business descriptions match “esol 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 3,186 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.

Esol providers by metro

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 “esol providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many esol providers are there based in the United States?

RevenueBase identified 927 company matches for esol providers associated with the United States 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?

Providence Public Schools tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most esol providers?

New York leads with 50 company records, followed by Houston (23) and Los Angeles (23).

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 3,186 professional contacts with verified work emails tracked across these 927 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.

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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 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.