Company lists · Data refreshed September 2026

Top 25 Simultaneous interpretation training providers worldwide

RevenueBase identified 835 simultaneous interpretation training providers worldwide as of September 2026 and tracks 21,655 professional contacts across them, including 1,829 with verified work emails and 2,906 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers simultaneous interpretation training providers 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 6, 2026. Country and city lists for simultaneous interpretation training providers 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
835Companies
21,655Contacts tracked
1,829Verified emails
2,906Mobile numbers
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The 25 largest simultaneous interpretation training providers worldwide

Ranked by team size
Top 25 of 835 simultaneous interpretation training providers worldwide, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to simultaneous interpretation training providers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMonterey, CA, United StatesHQ checked Sep 6, 202610001+6,440 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 6, 2026
2Indirect evidenceOverland Park, KS, United StatesHQ checked Sep 6, 2026n/a5,096 contacts →

Indirect evidence

“Language Access, Driven by Innovation.”

Source: RevenueBase Database · checked Sep 6, 2026
3Indirect evidenceTroy, MI, United StatesHQ checked Sep 6, 2026n/a915 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 6, 2026
4Indirect evidencePortland, OR, United StatesHQ checked Sep 6, 2026201-500623 contacts →

Indirect evidence

“We provide on-demand interpreting services via phone and video.”

Source: RevenueBase Database · checked Sep 6, 2026
5Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-200487 contacts →

Indirect evidence

“How can we help you?”

Source: RevenueBase Database · checked Sep 6, 2026
6Strong evidenceArlington, VA, United StatesHQ checked Sep 6, 2026201-500276 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 6, 2026
7Indirect evidenceBirmingham, United KingdomHQ checked Sep 6, 2026n/a221 contacts →

Indirect evidence

“Premium Linguistic Services based in Birmingham providing interpreting and translation.”

Source: RevenueBase Database · checked Sep 6, 2026
8Indirect evidenceHull, United KingdomHQ checked Sep 6, 2026n/a158 contacts →

Indirect evidence

“We started with one small office with two members of staff offering translation services to private individuals and companies; now we still offer translation services to private…”

Source: RevenueBase Database · checked Sep 6, 2026
9Indirect evidenceArlington, VA, United StatesHQ checked Sep 6, 202651-200153 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 6, 2026
10Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 202611-50142 contacts →

Indirect evidence

“Indianapolis-based LUNA Language Services provides translation and interpreting services for all industries and sectors, public and private.”

Source: RevenueBase Database · checked Sep 6, 2026
11Partial evidenceStirling, United KingdomHQ checked Sep 6, 202651-200140 contacts →

Partial evidence

“Global Voices is an international translation and interpretation services company, established in 2004 in Stirling, Scotland.”

Source: RevenueBase Database · checked Sep 6, 2026
12Indirect evidenceMilano, ItalyHQ checked Sep 6, 202611-50103 contacts →

Indirect evidence

“Yel­low Hub is your one-stop mul­ti­lin­gual busi­ness com­mu­ni­ca­tion provider.”

Source: RevenueBase Database · checked Sep 6, 2026
13Indirect evidenceBarcelona, SpainHQ checked Sep 6, 202651-200101 contacts →

Indirect evidence

“Oxford House se fundó en 1998 y desde entonces se ha convertido en una de los principales compañías que ofrece cursos de idiomas y servicios lingüísticos para empresas y…”

Source: RevenueBase Database · checked Sep 6, 2026
14Partial evidenceAtlanta, GA, United StatesHQ checked Sep 6, 202611-50101 contacts →

Partial evidence

“A leading provider of scheduled interpretation (onsite, video, and phone) for both spoken languages and ASL.”

Source: RevenueBase Database · checked Sep 6, 2026
15Indirect evidenceMilan, ItalyHQ checked Sep 6, 202611-5090 contacts →

Indirect evidence

“Unicollege è un Istituto a ordinamento universitario con sedi a Firenze, Mantova e Torino, autorizzato dal Ministero dell’Università e della Ricerca a rilasciare lauree triennali…”

Source: RevenueBase Database · checked Sep 6, 2026
16Indirect evidenceSalt Lake City, UT, United StatesHQ checked Sep 6, 202611-5079 contacts →

Indirect evidence

“Operating as a close-knit team of passionate language industry experts, we focus on the success of our clients.”

Source: RevenueBase Database · checked Sep 6, 2026
17Indirect evidenceWinchester, MA, United StatesHQ checked Sep 6, 202611-5076 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 6, 2026
18Partial evidenceColumbus, OH, United StatesHQ checked Sep 6, 2026201-50075 contacts →

Partial evidence

“Access 2 Interpreters, LLC is a provider of interpretation and translation services located in Columbus, OH.”

Source: RevenueBase Database · checked Sep 6, 2026
19Indirect evidenceMadrid, SpainHQ checked Sep 6, 202651-20068 contacts →

Indirect evidence

“Voze es un servicio que te permite acceder a un intérprete en 10 idiomas las 24h del día desde cualquier lugar del mundo.”

Source: RevenueBase Database · checked Sep 6, 2026
20Indirect evidenceSalt Lake City, UT, United StatesHQ checked Sep 6, 202611-5058 contacts →

Indirect evidence

“We are the nation's leading provider in Mayan and other indigenous language services.”

Source: RevenueBase Database · checked Sep 6, 2026
21Partial evidenceOttawa, ON, CanadaHQ checked Sep 6, 2026n/a53 contacts →

Partial evidence

“CISOC is a registered charitable organization that was founded in 1993 with the aim of providing the highest standards of interpretation and translation services.”

Source: RevenueBase Database · checked Sep 6, 2026
22Partial evidenceToledo, SpainHQ checked Sep 6, 2026n/a51 contacts →

Partial evidence

“INTERPRET works with experts in different fields to provide its over-the-phone interpreters with administrative, financial, medical and legal training and terminology, among many…”

Source: RevenueBase Database · checked Sep 6, 2026
23Indirect evidenceMunich, GermanyHQ checked Sep 6, 2026201-50046 contacts →

Indirect evidence

“The SDI in Munich, well-known all over Europe, is an institute that offers specialised study programs for students who want to pursue communication-related professions.”

Source: RevenueBase Database · checked Sep 6, 2026
24Partial evidenceDenver, CO, United StatesHQ checked Sep 6, 202611-5045 contacts →

Partial evidence

“Cesco Linguistic Services delivers Interpreting, Translation, and training solutions across every known language, with an uncompromising focus on quality, ethics, and…”

Source: RevenueBase Database · checked Sep 6, 2026
25Indirect evidenceValinhos, BrazilHQ checked Sep 6, 202651-20044 contacts →

Indirect evidence

“International Language Center.”

Source: RevenueBase Database · checked Sep 6, 2026

Showing 25 of 835 simultaneous interpretation training providers worldwide

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Simultaneous interpretation training providers worldwide at a glance

As of Sep 6, 2026
8.4%Verified-email coverage
13.4%Mobile-number coverage
25.9Average contacts per company
1-10Median size (employees)
5.1%Largest-city concentration · Sao Paulo
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
521
11-50
212
51-200
67
201-500
19
501-1,000
5
1,001-5,000
1
10001+
3

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 simultaneous interpretation training providers, 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
8 countries, largest first: the United States, Italy, Spain, France, Brazil, Germany, the United Kingdom, Canada. Country and city lists for simultaneous interpretation training providers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “simultaneous interpretation training providers”. 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 simultaneous interpretation training providers), 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 simultaneous interpretation training providers, 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, 1,829 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 6, 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.

Simultaneous interpretation training providers by location

8 lists · largest first

Every Simultaneous interpretation training 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 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 simultaneous interpretation training providers, 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 simultaneous interpretation training providers are there worldwide?

RevenueBase identified 835 simultaneous interpretation training providers 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?

Languageline Solutions, headquartered in Monterey, tops this list with the largest team on record.

Which country has the most simultaneous interpretation training providers?

The United States leads with 253 companies, followed by Italy (108) and Spain (108). Every simultaneous interpretation training providers list by country and city is linked on this page.

Which city has the most simultaneous interpretation training providers?

Sao Paulo leads with 43 headquartered companies, followed by Madrid (36) and Paris (20).

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 1,829 verified decision-maker contacts tracked across these 835 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 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 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.