Company lists · Data refreshed November 2026

Top 25 Localization testing companies worldwide

RevenueBase identified 1,610 company matches for localization testing companies worldwide as of November 2026 and tracks 43,743 professional contacts across them, including 8,043 with verified work emails. The United States is the largest market and Cairo the largest hub.

This list covers company matches for localization testing companies worldwide, 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. Country and city lists for localization testing companies follow the table.

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
1,610Companies
43,743Contacts tracked
8,043Verified emails
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The 25 largest localization testing companies worldwide

Ranked by team size
Top 25 of 1,610 company matches for localization testing companies worldwide, 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 matchWaltham, MA, United StatesHQ recorded Nov 6, 20265,001-10,0009,103 contacts →

Exact match

“Lionbridge partners with brands to break barriers and build bridges all over the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNew York, OR, United StatesHQ recorded Nov 6, 20261,001-5,0005,035 contacts →

Exact match

“Welocalize, a Welo Global brand, serves localization teams through AI-enabled multilingual content solutions that enable enterprises to operate and scale globally.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchHorsham, PA, United StatesHQ recorded Nov 6, 2026n/a1,720 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMontreal, QC, CanadaHQ recorded Nov 6, 20261,001-5,000597 contacts →

Exact match

“Keywords Studios à Montréal est un studio phare au sein du groupe Keywords, un fournisseur international de services dans l’industrie du jeu vidéo.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchCambridge, United StatesHQ recorded Nov 6, 2026201-500538 contacts →

Exact match

“Localize more with Alpha.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchWilmington, NY, United StatesHQ recorded Nov 6, 2026501-1,000501 contacts →

Exact match

“Unlock new worlds!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchWarsaw, PolandHQ recorded Nov 6, 2026201-500500 contacts →

Exact match

“QLOC is synonymous with quality delivered on time.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchWyboston, United KingdomHQ recorded Nov 6, 2026201-500480 contacts →

Exact match

“Universally Speaking is a trusted global outsourcing partner to the games industry, specialising in QA, Localisation, Audio, and Customer Support.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBrno, Czech RepublicHQ recorded Nov 6, 20261,001-5,000400 contacts →

Exact match

“Moravia, an RWS company, delivers product localization, global digital marketing, and testing services to the world's top brands.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchCluj-napoca, RomaniaHQ recorded Nov 6, 2026201-500372 contacts →

Exact match

“Quantic Lab is an award-winning company with 20 years of experience in high-quality testing solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBurbank, CA, United StatesHQ recorded Nov 6, 20261,001-5,000369 contacts →

Exact match

“Iyuno Media Group acquired SDI Media in 2021.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSingaporeHQ recorded Nov 6, 202651-200357 contacts →

Exact match

“Andovar is your gateway to global success, offering a comprehensive suite of custom language data services and localization solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBoston, CA, United StatesHQ recorded Nov 6, 202651-200330 contacts →

Exact match

“Acclaro is a content intelligence solutions business, helping brands communicate with purpose, precision, and global impact.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 2026201-500273 contacts →

Exact match

“Bayantech is a global localization and multilingual growth partner helping enterprises, startups, and organizations expand across international markets through translation…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchDublin, ON, IrelandHQ recorded Nov 6, 202651-200268 contacts →

Exact match

“Allcorrect has been producing high quality content for videogames since 2008.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBangalore, IndiaHQ recorded Nov 6, 2026201-500236 contacts →

Exact match

“VerboLabs, Your Gateway to Global Business, is a certified content company offering a one-stop solution to localization, dubbing & voice-over, content writing, desktop publishing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCórdoba, ArgentinaHQ recorded Nov 6, 202651-200234 contacts →

Exact match

“Lost in Globalization?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMontréal, NY, CanadaHQ recorded Nov 6, 2026201-500221 contacts →

Exact match

“TRSB, a trusted name in translation, in North America and around the world- Secure, integrated management systems for high volumes and total confidentiality - In-house…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchFrankfurt, GermanyHQ recorded Nov 6, 2026201-500185 contacts →

Exact match

“KERN Global Language Services is a leading provider of language services worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBeijing, SingaporeHQ recorded Nov 6, 2026201-500182 contacts →

Exact match

“ISO 9001, ISO17100 and ISO27001 Certified “There is always a better way” This is our very core belief which we hold closely in our hearts here at SuccessGlo, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-200170 contacts →

Exact match

“A good video game has the ability to completely immerse its players in a different reality.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 202651-200163 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 · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500160 contacts →

Exact match

“INLINGO was founded in 2012.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAlexandria, VA, United StatesHQ recorded Nov 6, 202651-200147 contacts →

Exact match

“Alconost handles every aspect of localization, from translation and cultural adaptation to continuous multilingual content updates and engineering, so you can focus on your top…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSeoul, South KoreaHQ recorded Nov 6, 202651-200146 contacts →

Exact match

“We are passionate about providing exceptional localization services to our clients.”

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

Showing 25 of 1,610 localization testing companies worldwide

See the full list, filter by size, metro and specialty, and access 8,043 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Localization testing companies worldwide at a glance

As of Nov 6, 2026
18.4%Verified-email coverage
27.2Average contacts per company
11-50Median size (employees)
1.8%Largest-city concentration · Cairo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
767
11-50
530
51-200
211
201-500
53
501-1,000
14
1,001-5,000
8
5,001-10,000
10
10001+
2

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for localization testing companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “localization testing companies” 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. 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 8,043 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.

Localization testing companies by location

14 lists · largest first

Every Localization testing companies 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 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 “localization testing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many localization testing companies are there worldwide?

RevenueBase identified 1,610 company matches for localization testing companies worldwide 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?

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

Which country has the most localization testing companies?

The United States leads with 180 companies, followed by India (117) and the United Kingdom (81). Every localization testing companies list by country and city is linked on this page.

Which city has the most localization testing companies?

Cairo leads with 29 company records, followed by London (27) and Madrid (22).

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 8,043 professional contacts with verified work emails tracked across these 1,610 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.