Company lists · Data refreshed November 2026

Top 22 Localization testing companies based in the United Kingdom

RevenueBase identified 81 company matches for localization testing companies associated with the United Kingdom as of November 2026 and tracks 1,339 professional contacts across them, including 426 with verified work emails. London is the largest hub.

This list covers company matches for localization testing companies associated with the United Kingdom, 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.

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
81Companies
1,339Contacts tracked
426Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 22 largest localization testing companies based in the United Kingdom

Ranked by team size
Top 22 of 81 company matches for localization testing companies based in the United Kingdom, 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 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
2Exact 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
3Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200100 contacts →

Exact match

“PoliLingua is a full-service language service provider headquartered in London, United Kingdom, with presence in US, Moldova, France, Germany, Spain.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLeeds, United KingdomHQ recorded Nov 6, 202611-5076 contacts →

Exact match

“One Global is a leading language and localization company based in Leeds working with clients from all over the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchChepstow, United KingdomHQ recorded Nov 6, 202611-5061 contacts →

Exact match

“Indulge in expert insight translations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 2026n/a54 contacts →

Exact match

“Founded by passionate industry veterans in 2016, el turco is a vibrant, innovative player in the localization field, revered for its exceptional services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHarrogate, United KingdomHQ recorded Nov 6, 202611-5051 contacts →

Exact match

“We are more than a Language Service Provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchNewquay, United KingdomHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“AJT were translation and localisation specialists for the European market, offering a range of professional language services to business clients, including translation…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Translate By Humans is a Language Services Provider (LSP) headquartered in London, United Kingdom.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchEpsom, United KingdomHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Comms Multilingual is a specialist language solutions provider with extensive experience in complex, multilingual and high-stakes projects that require translation, review or…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLiverpool, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“More than a translation agency – Word Global Eyes (WGE) is a leading international full-service agency for foreign language communication.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,00011 contacts →

Exact match

“We help bring your games to your players.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLeeds, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“A trusted Yorkshire translation agency since 2003, we’ve translated millions of words and hundreds of websites.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHarrogate, United KingdomHQ recorded Nov 6, 20261-109 contacts →

Exact match

“The good game localization house based in the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“At Content Quality we don’t just offer localisation services, we become your global voice.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchDorchester, United KingdomHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Founded in 1974, APT Transtelex Ltd has evolved from a team with dozens of translators typing up their work on old-fashioned typewriters, to a fully remote team embracing AI…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSheffield, United KingdomHQ recorded Nov 6, 202611-505 contacts →

Exact match

“WOHANKA AND ASSOCIATES LIMITED is a translation and localization company based out of Paternoster Row, Sheffield, United Kingdom.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSwansea, United KingdomHQ recorded Nov 6, 202611-505 contacts →

Exact match

“10 LOC allows content publishers to increase international fan engagement, improve accessibility and capitalise on global commercial opportunities with our sector specific…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCheadle Hulme, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

“FIDELITY, RELIABILITY, ADAPTABILITY PROVIDING ADVANCED TRANSLATION & LOCALISATION SERVICES The world is shrinking and your business is growing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBirmingham, United KingdomHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Established in 2007, The Word Hub Limited is a translation and localisation company based in Birmingham, UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Translation into fluent English from French, Italian, Japanese and Spanish, specialising in technology, environment and education.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Localize.”

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

Showing 22 of 81 localization testing companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 426 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Localization testing companies based in the United Kingdom at a glance

As of Nov 6, 2026
31.8%Verified-email coverage
16.5Average contacts per company
1-10Median size (employees)
33.3%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
46
11-50
21
51-200
6
201-500
2
501-1,000
1
5,001-10,000
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 81 companies.

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.
What qualifies
Company records associated with the United Kingdom 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 426 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 metro

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 based in the United Kingdom?

RevenueBase identified 81 company matches for localization testing companies associated with the United Kingdom 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?

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

Which city has the most localization testing companies?

London leads with 27 company records, followed by Manchester (4) and Leeds (3).

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 426 professional contacts with verified work emails tracked across these 81 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.

Ready to reach these companies? Verified emails and direct dials for all 81 localization testing companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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.