Company lists · Data refreshed September 2026

Top 25 Convention interpretation providers worldwide

RevenueBase identified 2,891 convention interpretation providers worldwide as of September 2026 and tracks 44,894 professional contacts across them, including 3,479 with verified work emails. The United States is the largest market and London the largest hub.

This list covers convention interpretation 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 27, 2026. Country and city lists for convention interpretation 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 27, 2026 86% judged on-target in blind review
2,891Companies
44,894Contacts tracked
3,479Verified emails
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The 25 largest convention interpretation providers worldwide

Ranked by team size
Top 25 of 2,891 convention interpretation providers worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to convention interpretation 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 27, 202610001+6,440 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceOverland Park, KS, United StatesHQ checked Sep 27, 2026n/a5,096 contacts →

Indirect evidence

“Language Access, Driven by Innovation.”

Source: RevenueBase Database · checked Sep 27, 2026
3Partial evidenceTucson, AZ, United StatesHQ checked Sep 27, 20261,001-5,0001,676 contacts →

Partial evidence

“CyraCom is your one-stop shop for top-quality, professional interpretation and translation services.”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceLas Rozas, SpainHQ checked Sep 27, 2026201-500866 contacts →

Indirect evidence

“At Seprotec Multilingual Solutions we help thousands of companies around the world to improve their sales by delivering content and facilitating communications in their customer’s…”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceMiraflores, PeruHQ checked Sep 27, 20261,001-5,000865 contacts →

Partial evidence

“At Interpretia, we help people understand one another through professional remote interpretation.”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceWinter Haven, United StatesHQ checked Sep 27, 2026n/a617 contacts →

Indirect evidence

“Multilingual Interpreters and Translators, a language service and business solutions Company based in Winter Haven, Florida.”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceMalmö, SwedenHQ checked Sep 27, 202651-200506 contacts →

Indirect evidence

“SPRÅKSERVICE is Sweden's leading agency for interpreting and translation services.”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceHouston, TX, United StatesHQ checked Sep 27, 202651-200487 contacts →

Indirect evidence

“How can we help you?”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceSouth Melbourne, AustraliaHQ checked Sep 27, 20261,001-5,000449 contacts →

Indirect evidence

“Oncall is a world leader in quality interpreting and translation services.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceSpring Valley, CA, United StatesHQ checked Sep 27, 202651-200413 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 Sep 27, 2026
11Indirect evidenceOslo, NorwayHQ checked Sep 27, 2026n/a344 contacts →

Indirect evidence

“TolkeNett har 15 års erfaring innen tolke- og oversettingstjenester.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceParis La Défense, United StatesHQ checked Sep 27, 2026501-1,000339 contacts →

Indirect evidence

“Ubiqus language services expand under the Acolad brand.”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceCharlotte, NC, United StatesHQ checked Sep 27, 2026n/a301 contacts →

Indirect 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 Sep 27, 2026
14Indirect evidenceMelbourne, AustraliaHQ checked Sep 27, 2026n/a276 contacts →

Indirect evidence

“Interpreter & translator services.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceVienna, VA, United StatesHQ checked Sep 27, 2026n/a275 contacts →

Indirect evidence

“Liberty Language Services is a small, woman- and minority-owned language services agency headquartered in Tysons Corner, Virginia.”

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceVirginia Beach, VA, United StatesHQ checked Sep 27, 2026n/a249 contacts →

Partial 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 Sep 27, 2026
17Partial evidenceDublin, IrelandHQ checked Sep 27, 2026n/a201 contacts →

Partial evidence

“Translation & Interpretation services.”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceAurora, CO, United StatesHQ checked Sep 27, 2026n/a190 contacts →

Indirect evidence

“Translation Excellence is a full-service language solutions provider.”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceLimerick, IrelandHQ checked Sep 27, 2026n/a185 contacts →

Indirect evidence

“At Translit, we empower people and organisations to overcome the language and communication challenges they face every day.Since 2009, we’ve been dedicated to delivering high…”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceRoma, ItalyHQ checked Sep 27, 2026n/a182 contacts →

Indirect evidence

“ITM Srl provides interpreting, translation and cultural mediation services in the most widespread languages but also in rare languages and dialects, as well as sign language; ITM…”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceBilbao, SpainHQ checked Sep 27, 2026n/a169 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceHamilton, OH, United StatesHQ checked Sep 27, 202610001+163 contacts →

Indirect evidence

“We are a rejuvenated company made up of one of the world's largest and most innovative translation, localization, and interpreting providers.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceHull, United KingdomHQ checked Sep 27, 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 27, 2026
24Indirect evidenceFort Worth, TX, United StatesHQ checked Sep 27, 2026n/a153 contacts →

Indirect evidence

“TIN is a translation and interpreting company that exists to promote communication between and among individuals who speak, write and read different languages.”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 202651-200146 contacts →

Indirect evidence

“Wouldn’t life be easier if video conferencing platforms had a button that let every participant speak and listen in whatever language they want?” Enter KUDO, the team bringing…”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 2,891 convention interpretation providers worldwide

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Convention interpretation providers worldwide at a glance

As of Sep 27, 2026
7.7%Verified-email coverage
15.5Average contacts per company
1-10Median size (employees)
2.1%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
1,835
11-50
745
51-200
204
201-500
46
501-1,000
21
1,001-5,000
13
10001+
10

Email recency is reported on each country list linked below.

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 convention interpretation 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
Every country. Country and city lists for convention interpretation providers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “convention interpretation 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 convention interpretation 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 convention interpretation 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, 3,479 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 27, 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.

Convention interpretation providers by location

12 lists · largest first

Every Convention interpretation providers 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 convention interpretation 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 convention interpretation providers are there worldwide?

RevenueBase identified 2,891 convention interpretation 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 convention interpretation providers?

The United States leads with 547 companies, followed by the United Kingdom (152) and Spain (149). Every convention interpretation providers list by country and city is linked on this page.

Which city has the most convention interpretation providers?

London leads with 60 headquartered companies, followed by Sao Paulo (46) and Madrid (45).

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 3,479 verified decision-maker contacts tracked across these 2,891 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 27, 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.