Company lists · Data refreshed September 2026
Top 25 Website localization service providers worldwide
RevenueBase identified 6,188 website localization service providers worldwide as of September 2026 and tracks 84,794 professional contacts across them, including 13,357 with verified work emails. The United States is the largest market and London the largest hub.
This list covers website localization service 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 22, 2026. Country and city lists for website localization service 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.
The 25 largest website localization service providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 8,706 contacts → | ||||
Indirect evidence “Lionbridge partners with brands to break barriers and build bridges all over the world.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 4,873 contacts → | ||||
Partial evidence “Welocalize, a Welo Global brand, serves localization teams through AI-enabled multilingual content solutions that enable enterprises to operate and scale globally.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,737 contacts → | ||||
Indirect evidence “Established in 1991, LSA’s mission is to help people and companies survive and thrive in a global environment.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,283 contacts → | ||||
Indirect evidence “Acolad is a global leader in content and language solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,105 contacts → | ||||
Indirect evidence “As one of the largest language service providers globally, we utilise the greatest minds and boundary shattering technology to deliver phenomenal quality at scale to both our…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 896 contacts → | ||||
Indirect evidence “CCJK (Brand of MarsHub) is a globally known, ISO-certified language services provider that has become the industry leader after years of high-quality services.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 866 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 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 663 contacts → | ||||
Indirect evidence “We have been helping some of the world’s most iconic brands to optimize their global commercial potential since 1997.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 617 contacts → | ||||
Indirect evidence “Multilingual Interpreters and Translators, a language service and business solutions Company based in Winter Haven, Florida.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 600 contacts → | ||||
Indirect evidence “Argos Multilingual provides global language and data solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 554 contacts → | ||||
Indirect evidence “Hello, we’re Toppan Digital Language.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 526 contacts → | ||||
Indirect evidence “Localize more with Alpha.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 487 contacts → | ||||
Indirect evidence “Unlock new worlds!” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 422 contacts → | ||||
Indirect evidence “Mars Translation is an ISO-certified translation service provider that boasts a global network of native translators proficient in over 230 languages and 25+ industries.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 402 contacts → | ||||
Indirect evidence “CBG provides end-to-end language solutions and intelligent translation technology.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 384 contacts → | ||||
Partial evidence “Moravia, an RWS company, delivers product localization, global digital marketing, and testing services to the world's top brands.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 356 contacts → | ||||
Partial evidence “Andovar is your gateway to global success, offering a comprehensive suite of custom language data services and localization solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 339 contacts → | ||||
Indirect evidence “Ubiqus language services expand under the Acolad brand.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 313 contacts → | ||||
Indirect evidence “Acclaro is a content intelligence solutions business, helping brands communicate with purpose, precision, and global impact.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 308 contacts → | ||||
Indirect evidence “Visit Propio-LS.com” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 291 contacts → | ||||
Indirect evidence “Knowledgeworks, in its 20+ year journey, has evolved from a language translation and multimedia company into a trusted global partner for content and communication solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 289 contacts → | ||||
Indirect evidence “We’ve been helping organisations connect authentically with audiences all over the world for over two decades.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 274 contacts → | ||||
Partial evidence “Bayantech is a global localization and multilingual growth partner helping enterprises, startups, and organizations expand across international markets through translation…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 258 contacts → | ||||
Indirect evidence “translate plus, part of Publicis Groupe, is an award-winning language services provider (LSP) and technology company.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 249 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 Sep 22, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: website localization service providers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names website localization service providers.
- Partial evidence
- Its own public description names part of website localization service providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name website localization service providers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 6,188 website localization service providers worldwide
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Website localization service providers worldwide at a glance
As of Sep 22, 2026Companies by employee count
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 website localization service 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 website localization service providers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “website localization service 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 website localization service 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 website localization service 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, 13,357 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 22, 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.
Website localization service providers by location
33 lists · largest firstEvery Website localization service providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Website localization service providers based in the United States703
- Website localization service providers based in the United Kingdom398
- Website localization service providers based in Spain327
- Website localization service providers based in India301
- Website localization service providers based in France254
- Website localization service providers based in Germany220
- Website localization service providers based in Italy211
- Website localization service providers based in Brazil185
- Website localization service providers based in Egypt156
- Website localization service providers based in Canada147
- Website localization service providers based in Türkiye117
- Website localization service providers based in Argentina116
- Website localization service providers based in the United Arab Emirates105
- Website localization service providers based in the Netherlands93
- Website localization service providers based in Poland84
- Website localization service providers based in Portugal81
- Website localization service providers based in Japan70
- Website localization service providers based in Belgium65
- Website localization service providers based in Mexico62
- Website localization service providers based in Switzerland50
- Website localization service providers based in Romania45
- Website localization service providers based in Ukraine44
- Website localization service providers based in Estonia39
- Website localization service providers based in Croatia38
- Website localization service providers based in Greece37
- Website localization service providers based in Hong Kong35
- Website localization service providers based in Israel35
- Website localization service providers based in Ireland33
- Website localization service providers based in Austria32
- Website localization service providers based in Vietnam32
- Website localization service providers based in Latvia31
- Website localization service providers based in Sweden28
- Website localization service providers based in Hungary27
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 website localization service 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 website localization service providers are there worldwide?
RevenueBase identified 6,188 website localization service 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?
Lionbridge, headquartered in Waltham, tops this list with the largest team on record.
Which country has the most website localization service providers?
The United States leads with 703 companies, followed by the United Kingdom (398) and Spain (327). Every website localization service providers list by country and city is linked on this page.
Which city has the most website localization service providers?
London leads with 177 headquartered companies, followed by Barcelona (77) and Madrid (69).
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 13,357 verified decision-maker contacts tracked across these 6,188 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 22, 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.