Company lists · Data refreshed August 2026

Top 25 Conference interpreting services worldwide

RevenueBase identified 1,122 conference interpreting services worldwide as of August 2026 and tracks 24,590 professional contacts across them, including 2,091 with verified work emails and 3,637 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers conference interpreting services 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 August 31, 2026. Country and city lists for conference interpreting services 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review
1,122Companies
24,590Contacts tracked
2,091Verified emails
3,637Mobile numbers
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The 25 largest conference interpreting services worldwide

Ranked by team size
Top 25 of 1,122 conference interpreting services worldwide, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to conference interpreting services: 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, US10001+6,355 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
2Indirect evidenceOverland Park, KS, USn/a4,992 contacts →

Indirect evidence

“Propio's mission is to innovate and connect people anywhere, anytime.”

Source: RevenueBase Database · checked Aug 31, 2026
3Partial evidencePortland, OR, US201-500606 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
4Indirect evidenceHouston, TX, US51-200476 contacts →

Indirect evidence

“How can we help you?”

Source: RevenueBase Database · checked Aug 31, 2026
5Partial evidenceSpring Valley, CA, US51-200399 contacts →

Partial evidence

“Hanna Interpreting is an award-winning, woman and minority-owned small business providing interpretation, translation, and transcription services nationwide.”

Source: RevenueBase Database · checked Aug 31, 2026
6Indirect evidenceRochdale, GB51-200351 contacts →

Indirect evidence

“Language Empire was established in 2001.”

Source: RevenueBase Database · checked Aug 31, 2026
7Indirect evidenceMadrid, ES501-1,000340 contacts →

Indirect evidence

“Ubiqus language services expand under the Acolad brand.”

Source: RevenueBase Database · checked Aug 31, 2026
8Partial evidenceCharlotte, NC, USn/a298 contacts →

Partial evidence

“Since 1989, Fluent Language Solutions has helped tens of thousands of clients across the country overcome language barriers with the highest quality interpreting and translating…”

Source: RevenueBase Database · checked Aug 31, 2026
9Indirect evidenceVirginia Beach, VA, USn/a246 contacts →

Indirect evidence

“Founded in and headquartered in Virginia Beach, Virginia, The Language Group (TLG) is an award-winning language solutions company providing translation and interpretation services…”

Source: RevenueBase Database · checked Aug 31, 2026
10Indirect evidenceSan Sebastian, ESn/a169 contacts →

Indirect evidence

“Con más de 45 años de experiencia, TISA, Traducciones e Intérpretes S.A.L.”

Source: RevenueBase Database · checked Aug 31, 2026
11Indirect evidenceHull, GBn/a157 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 Aug 31, 2026
12Indirect evidencePuteaux, FR51-200132 contacts →

Indirect evidence

“Global Voices is an international translation and interpretation services company.”

Source: RevenueBase Database · checked Aug 31, 2026
13Partial evidenceToronto, ON, CA11-50126 contacts →

Partial evidence

“All Languages is Canada's oldest continually operating multilingual translation and interpreting company.”

Source: RevenueBase Database · checked Aug 31, 2026
14Partial evidencePortland, OR, US51-200101 contacts →

Partial evidence

“We deliver on-site interpreting, telephone interpreting, video interpreting, and document translation.”

Source: RevenueBase Database · checked Aug 31, 2026
15Indirect evidenceGlasgow, GB11-5089 contacts →

Indirect evidence

“When you need to communicate in foreign languages, Global Connects will make your first impression count.”

Source: RevenueBase Database · checked Aug 31, 2026
16Indirect evidenceAlbany, NY, US11-5081 contacts →

Indirect evidence

“Translation services are at the heart of what we do.”

Source: RevenueBase Database · checked Aug 31, 2026
17Partial evidenceTukwila, WA, US201-50081 contacts →

Partial evidence

“InDemand Interpreting provides a comprehensive suite of leading-edge medical interpreting solutions designed to improve communications between clinicians and a growing population…”

Source: RevenueBase Database · checked Aug 31, 2026
18Indirect evidenceBoston, MA, US11-5080 contacts →

Indirect evidence

“Language Connections, Inc.”

Source: RevenueBase Database · checked Aug 31, 2026
19Partial evidenceGB11-5078 contacts →

Partial evidence

“Language is Everything is an award-winning, UK-based interpreting and translation company.”

Source: RevenueBase Database · checked Aug 31, 2026
20Indirect evidenceColumbus, OH, US201-50076 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
21Partial evidenceCambridge, GB501-1,00065 contacts →

Partial evidence

“Cintra is a leading UK translation and interpreting company providing high-quality language services for businesses and public sector organisations.”

Source: RevenueBase Database · checked Aug 31, 2026
22Partial evidenceRiverside, CA, US11-5054 contacts →

Partial evidence

“RISE provides professional interpreting services between the Deaf / Hard of Hearing and people that can hear (Hearing).”

Source: RevenueBase Database · checked Aug 31, 2026
23Indirect evidenceLas Vegas, NV, US11-5051 contacts →

Indirect evidence

“Founded in 1985, U.S.”

Source: RevenueBase Database · checked Aug 31, 2026
24Partial evidenceShipley, GB11-5050 contacts →

Partial evidence

“We believe in interpreting and translation for everyone who needs it and that no one should have to go without the support they need due to a language barrier.”

Source: RevenueBase Database · checked Aug 31, 2026
25Indirect evidenceCarrieres-Sous-Poissy, FRn/a48 contacts →

Indirect evidence

“Interword sera pour vous un partenaire sérieux et rigoureux, au fait des exigences linguistiques de votre métier, capable de répondre à tous vos besoins en traduction et…”

Source: RevenueBase Database · checked Aug 31, 2026

Showing 25 of 1,122 conference interpreting services worldwide

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Conference interpreting services worldwide at a glance

As of Aug 31, 2026
8.5%Verified-email coverage
14.8%Mobile-number coverage
21.9Average contacts per company
1-10Median size (employees)
4.1%Largest-city concentration · London
Aug 31, 2026Page data refreshed

Companies by employee count

1-10
756
11-50
239
51-200
68
201-500
20
501-1,000
13
1,001-5,000
3
10001+
4

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 conference interpreting services, 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
9 countries, largest first: the United States, the United Kingdom, Germany, Spain, France, Italy, Brazil, Canada, Belgium. Country and city lists for conference interpreting services are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “conference interpreting services”. 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 conference interpreting services), 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 conference interpreting services, 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, 2,091 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 August 31, 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.

Conference interpreting services by location

10 lists · largest first

Every Conference interpreting services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 conference interpreting services, 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 conference interpreting services are there worldwide?

RevenueBase identified 1,122 conference interpreting services worldwide as of August 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 conference interpreting services?

The United States leads with 390 companies, followed by the United Kingdom (134) and Germany (126). Every conference interpreting services list by country and city is linked on this page.

Which city has the most conference interpreting services?

London leads with 46 headquartered companies, followed by Sao Paulo (40) and Madrid (36).

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 2,091 verified decision-maker contacts tracked across these 1,122 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.