Company lists · Data refreshed September 2026

Top 25 Customer service language training firms based in the United States

RevenueBase identified 499 company matches for customer service language training firms associated with the United States as of September 2026 and tracks 20,130 professional contacts across them, including 1,717 with verified work emails. New York is the largest hub.

This list covers company matches for customer service language training firms 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 September 19, 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 Sep 19, 2026 How this list was built
499Companies
20,130Contacts tracked
1,717Verified emails
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The 25 largest customer service language training firms based in the United States

Ranked by team size
Top 25 of 499 company matches for customer service language training firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchMonterey, CA, United StatesHQ recorded Sep 19, 202610001+6,440 contacts →

Exact match

“LanguageLine Solutions is the world’s leading language solutions company.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchPrinceton, NJ, United StatesHQ recorded Sep 19, 20265,001-10,0003,273 contacts →

Exact match

“Berlitz Corporation is a world-leading language and cultural training provider with over 140 years of experience.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchHorsham, PA, United StatesHQ recorded Sep 19, 2026n/a1,737 contacts →

Exact match

“Established in 1991, LSA’s mission is to help people and companies survive and thrive in a global environment.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchTroy, MI, United StatesHQ recorded Sep 19, 2026n/a915 contacts →

Exact match

“Global LT has been a leading expert in Language Solutions and Expatriate Services since 1979.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchPlano, TX, United StatesHQ recorded Sep 19, 2026501-1,000330 contacts →

Exact match

“Akorbi has been acquired by Propio Language Services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchArlington, VA, United StatesHQ recorded Sep 19, 2026201-500276 contacts →

Exact match

“Established in 1985, Diplomatic Language Services provides exceptional language training, translation, interpretation, and linguist testing to federal and state government…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchAtlanta, GA, United StatesHQ recorded Sep 19, 202651-200164 contacts →

Exact match

“ALTA is an employee-owned language services company specializing in enterprise-level translation services, language proficiency testing, and innovative language training programs.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchPaterson, NJ, United StatesHQ recorded Sep 19, 202651-200157 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchArlington, VA, United StatesHQ recorded Sep 19, 202651-200153 contacts →

Exact match

“For over 35 years, we’ve served clients including the U.S.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchWinter Garden, FL, United StatesHQ recorded Sep 19, 2026201-500153 contacts →

Exact match

“We are a HIPAA Complaint Language Service Provider and Business solutions company based in Winter Garden Florida, United States and in Braga Portugal.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchWilmington, DE, United StatesHQ recorded Sep 19, 202651-200141 contacts →

Exact match

“Experienced Language Service Provider (LSP) offering comprehensive Interpretation, Translation and Contact center solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Sep 19, 202651-200128 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchNashua, NH, United StatesHQ recorded Sep 19, 202651-20085 contacts →

Exact match

“What do U.S.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchIrvine, CA, United StatesHQ recorded Sep 19, 202651-20084 contacts →

Exact match

“Hansem Global Language Services: Your Partner in Global Communication Founded in 1990, Hansem Global has grown into a leading language services provider, driven by the mission to…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchBoston, MA, United StatesHQ recorded Sep 19, 202611-5081 contacts →

Exact match

“Language Connections, Inc.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchWinchester, MA, United StatesHQ recorded Sep 19, 202611-5076 contacts →

Exact match

“Cross Cultural Communication Systems, is a recognized authority in linguistic cultural services, working with health care, educational, legal and business institutions nationwide…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchNy, United StatesHQ recorded Sep 19, 202651-20058 contacts →

Exact match

“ABOUT ABC LANGUAGES ABC Languages – where language lovers come to learn!”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchSalt Lake City, UT, United StatesHQ recorded Sep 19, 202611-5057 contacts →

Exact match

“CommGap is a full service international communications agency providing spoken word interpretation, document translation, voice-over, website development, language training…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchWinter Garden, FL, United StatesHQ recorded Sep 19, 202651-20057 contacts →

Exact match

“Welcome to the Medical Interpreting & Translation Center!”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchNew York, United StatesHQ recorded Sep 19, 202611-5047 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 · Sep 19, 2026 · View company records in RevenueBase
21Exact matchNew York, NY, United StatesHQ recorded Sep 19, 2026n/a45 contacts →

Exact match

“Talaera is a professional communication training and software company that helps global teams communicate clearly and confidently in English at work.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchSanta Barbara, CA, United StatesHQ recorded Sep 19, 2026n/a42 contacts →

Exact match

“Language Network is a language solutions company providing on-demand language support in 200 languages.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchTroy, MI, United StatesHQ recorded Sep 19, 202651-20040 contacts →

Exact match

“PALS INTERNATIONAL is a Language Services provider that has been working with companies for 30 years, helping them to better communicate with their global partners and customers…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchLos Angeles, CA, United StatesHQ recorded Sep 19, 202611-5033 contacts →

Exact match

“Lets change the world through communication.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchBrea, CA, United StatesHQ recorded Sep 19, 202611-5031 contacts →

Exact match

“For more than 30 years, Continental Interpreting has assisted businesses in a variety of industries with language solutions that bridge communication gaps and transcend cultural…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 499 customer service language training firms based in the United States

See the full list, filter by size, metro and specialty, and access 1,717 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Customer service language training firms based in the United States at a glance

As of Sep 19, 2026
8.5%Verified-email coverage
40.3Average contacts per company
1-10Median size (employees)
7.6%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
331
11-50
116
51-200
36
201-500
3
501-1,000
4
1,001-5,000
4
5,001-10,000
2
10001+
3

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 499 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 “customer service language training firms” 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 1,717 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 September 19, 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.

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 “customer service language training firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many customer service language training firms are there based in the United States?

RevenueBase identified 499 company matches for customer service language training firms associated with the United States as of September 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?

Languageline Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most customer service language training firms?

New York leads with 38 company records, followed by Houston (19) and Atlanta (15).

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 1,717 professional contacts with verified work emails tracked across these 499 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 September 19, 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.