Company lists · Data refreshed September 2026

Top 25 Software localization companies based in the United States

RevenueBase identified 519 software localization companies headquartered in the United States as of September 2026 and tracks 28,101 professional contacts across them, including 5,383 with verified work emails and 3,464 with mobile numbers. New York is the largest hub.

This list covers software localization companies headquartered in the United States, 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.

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
519Companies
28,101Contacts tracked
5,383Verified emails
3,464Mobile numbers
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The 25 largest software localization companies based in the United States

Ranked by team size
Top 25 of 519 software localization companies based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to software localization companies: 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 evidenceWaltham, MA, United StatesHQ checked Sep 6, 20265,001-10,0008,706 contacts →

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

Source: company website · checked Sep 6, 2026
2Partial evidenceNew York, NY, United StatesHQ checked Sep 6, 20261,001-5,0004,873 contacts →

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

Source: company website · checked Sep 6, 2026
3Indirect evidenceHorsham, PA, United StatesHQ checked Sep 6, 2026n/a1,737 contacts →

“Established in 1991, LSA’s mission is to help people and companies survive and thrive in a global environment.”

Source: company website · checked Sep 6, 2026
4Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 2026201-500600 contacts →

“Argos Multilingual provides global language and data solutions.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceWilmington, DE, United StatesHQ checked Sep 6, 2026501-1,000487 contacts →

“Unlock new worlds!”

Source: company website · checked Sep 6, 2026
6Indirect evidenceBurbank, CA, United StatesHQ checked Sep 6, 20261,001-5,000324 contacts →

“Iyuno Media Group acquired SDI Media in 2021.”

Source: company website · checked Sep 6, 2026
7Indirect evidenceBoston, MA, United StatesHQ checked Sep 6, 202651-200313 contacts →

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

Source: company website · checked Sep 6, 2026
8Indirect evidenceVirginia Beach, VA, United StatesHQ checked Sep 6, 2026n/a249 contacts →

“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: company website · checked Sep 6, 2026
9Partial evidenceDover, DE, United StatesHQ checked Sep 6, 2026201-500229 contacts →

“Lokalise is the most loved and trusted localization tool – partnering with over companies globally across product, engineering, marketing, content and design teams.”

Source: company website · checked Sep 6, 2026
10Partial evidenceUsa., FL, United StatesHQ checked Sep 6, 202651-200198 contacts →

“Driven by a passion for language and its power to break barriers between cultures, our translation-and-localization agency was born in 2009 through the collaboration of thousands…”

Source: company website · checked Sep 6, 2026
11Indirect evidenceTampa, FL, United StatesHQ checked Sep 6, 20261,001-5,000191 contacts →

“Day Translations (daytranslations.com) is a professional document translation company dedicated to providing the most accurate translations on the planet.”

Source: company website · checked Sep 6, 2026
12Indirect evidenceAurora, CO, United StatesHQ checked Sep 6, 2026n/a190 contacts →

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

Source: company website · checked Sep 6, 2026
13Indirect evidenceMiami, FL, United StatesHQ checked Sep 6, 2026201-500171 contacts →

“Leader in English – Spanish Translation Services Trusted Translations, Inc.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 6, 202651-200164 contacts →

“ALTA is an employee-owned language services company specializing in enterprise-level translation services, language proficiency testing, and innovative language training programs.”

Source: company website · checked Sep 6, 2026
15Indirect evidenceBoston, MA, United StatesHQ checked Sep 6, 2026201-500153 contacts →

“Whether it’s your product, your brand, or your company – we’re here to help you go global.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 6, 20261,001-5,000143 contacts →

“Translations.com is the world’s leading provider of technology and language solutions to power global digital initiatives.”

Source: company website · checked Sep 6, 2026
17Partial evidenceAlexandria, VA, United StatesHQ checked Sep 6, 202651-200140 contacts →

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

Source: company website · checked Sep 6, 2026
18Partial evidenceMarlborough, MA, United StatesHQ checked Sep 6, 202651-200136 contacts →

“GTE Localize is a premier global translation agency, delivering top-tier language services including translation, localization, subtitling, and transcription.”

Source: company website · checked Sep 6, 2026
19Partial evidenceCoconut Creek, FL, United StatesHQ checked Sep 6, 2026201-500135 contacts →

“MotionPoint is an AI-Driven Website Translation and Localization Technology company under our parent company MarketFully.”

Source: company website · checked Sep 6, 2026
20Partial evidenceNew York, NY, United StatesHQ checked Sep 6, 2026201-500129 contacts →

“Ulatus, a Crimson Interactive company, is a trusted brand for professional localization services.”

Source: company website · checked Sep 6, 2026
21Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 6, 2026201-500121 contacts →

“AWATERA is a global language technology partner and service provider.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceLaguna Beach, CA, United StatesHQ checked Sep 6, 202651-200118 contacts →

“1-StopAsia is a one-stop source for all your Asian language needs.”

Source: company website · checked Sep 6, 2026
23Partial evidenceNeedham, MA, United StatesHQ checked Sep 6, 202651-200111 contacts →

“Language Scientific is a US-based global provider of translation and localization services, specializing in tailored solutions that address the specific needs of each industry and…”

Source: company website · checked Sep 6, 2026
24Indirect evidencePortland, OR, United StatesHQ checked Sep 6, 202651-200106 contacts →

“Barbier is a Language Services Company (LSC) providing translation, editing, proofreading, interpretation, transcription, desktop publishing, graphic design, language training…”

Source: company website · checked Sep 6, 2026
25Partial evidenceLafayette, CA, United StatesHQ checked Sep 6, 202611-5099 contacts →

“Bureau Works is cutting edge translation software that helps its users translate at greater speeds and with an increased sense of authorship.”

Source: company website · checked Sep 6, 2026

Showing 25 of 519 software localization companies based in the United States

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Software localization companies based in the United States at a glance

As of Sep 6, 2026
19.2%Verified-email coverage
12.3%Mobile-number coverage
54.1Average contacts per company
11-50Median size (employees)
6.7%Largest-city concentration · New York
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
243
11-50
170
51-200
74
201-500
17
501-1,000
4
1,001-5,000
10
5,001-10,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 software localization companies, 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “software localization companies”. 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 software localization companies), 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 software localization companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 5,383 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.

Software localization companies by metro

  • Software localization companies in New York35

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 software localization companies, 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 software localization companies are there based in the United States?

RevenueBase identified 519 software localization companies headquartered in the United States 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 city has the most software localization companies?

New York leads with 35 headquartered companies, followed by San Francisco (20) and Miami (17).

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 5,383 verified decision-maker contacts tracked across these 519 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.