Company lists · Data refreshed September 2026
Top 25 Human-in-the-loop translation platforms based in the United Kingdom
RevenueBase identified 99 human-in-the-loop translation platforms headquartered in the United Kingdom as of September 2026 and tracks 3,028 professional contacts across them, including 472 with verified work emails. London is the largest hub.
This list covers human-in-the-loop translation platforms headquartered in the United Kingdom, 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 28, 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.
The 25 largest human-in-the-loop translation platforms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 190 contacts → | ||||
Partial evidence “XTM is the AI Globalization Platform that helps the world's most ambitious enterprises create, manage and deliver multilingual content at scale.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 142 contacts → | ||||
Indirect evidence “At Global Lingo, we help you connect with your international audiences through our premier language and AI driven solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 130 contacts → | ||||
Indirect evidence “We know a one-size-fits all approach doesn’t work for global companies that need to release huge volumes of content across multiple languages, markets and channels - fast.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 110 contacts → | ||||
Partial evidence “With more than 30 years’ experience in translation, localisation and content creation, Sandberg is an ISO 17100-certified translation company and centre of excellence for…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 96 contacts → | ||||
Indirect evidence “PoliLingua is a full-service language service provider headquartered in London, United Kingdom, with presence in US, Moldova, France, Germany, Spain.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 81 contacts → | ||||
Partial evidence “The Translation People specialises in providing business to business translation and language services for its international client base through a global network of strategic…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 76 contacts → | ||||
Partial evidence “Transladiem is a language service provider with a human face.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 56 contacts → | ||||
Partial evidence “Our international reputation, over professional localised translators and superior customer service make Absolute Translations a reliable choice.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 54 contacts → | ||||
Partial evidence “ALM helps technical and regulated organisations communicate confidently across international markets through specialist translation, localisation and multilingual content…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 32 contacts → | ||||
Indirect evidence “We are developing an AI-driven simultaneous speech interpreter designed to connect people from diverse linguistic and cultural backgrounds.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 30 contacts → | ||||
Partial evidence “Rosetta Translation provides a full range of translation services to companies worldwide.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 22 contacts → | ||||
Partial evidence “Kickwords Limited provides professional translation services, just in time, at affordable rates and to the highest quality to help your business grow!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 21 contacts → | ||||
Strong evidence “Taia Translations is a modern AI-assisted translation platform.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 20 contacts → | ||||
Partial evidence “We provide expert-led translation solutions for organisations working across languages, markets and complex content.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 19 contacts → | ||||
Partial evidence “At Traduzz Limited, we are a quality-driven translation and interpretation company with a strong focus on USA & Latin American Spanish.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 contacts → | ||||
Partial evidence “Award-winning certified translation company based in Edinburgh.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 8 contacts → | ||||
Partial evidence “TranslatorsVillage is specialized in translation services, with headquarters in Leeds, UK.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 8 contacts → | ||||
Partial evidence “Established in 1968, 1st Translation was one of the very first translation services in the UK.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Partial evidence “Global eLearning and compliance content doesn’t fail because of translation.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Partial evidence “At voxANN, we are bridging beyond the language gap between written text and spoken word through a fusion of human expertise and AI technology.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Partial evidence “OSI is a specialized provider of translation & language services, multilingual content production and international marketing.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 6 contacts → | ||||
Partial evidence “We are building an API that can be installed and operated within an on-line multilingual translation/localization environment.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 6 contacts → | ||||
Partial evidence “International Translations Limited is a Language services provider that has provided translations and interpreting services to companies near and far for over 40 years.” Source: RevenueBase Database · checked Sep 28, 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: human-in-the-loop translation platforms. 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 human-in-the-loop translation platforms.
- Partial evidence
- Its own public description names part of human-in-the-loop translation platforms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name human-in-the-loop translation platforms. 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 99 human-in-the-loop translation platforms based in the United Kingdom
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Human-in-the-loop translation platforms based in the United Kingdom at a glance
As of Sep 28, 2026Companies by employee count
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 99 companies.
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 human-in-the-loop translation platforms, 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 Kingdom whose own description of what they do matches “human-in-the-loop translation platforms”. 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 human-in-the-loop translation platforms), 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 human-in-the-loop translation platforms, and records with no verified work email. Companies headquartered outside United Kingdom 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, 472 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 28, 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.
Human-in-the-loop translation platforms by metro
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 human-in-the-loop translation platforms, 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 human-in-the-loop translation platforms are there based in the United Kingdom?
RevenueBase identified 99 human-in-the-loop translation platforms headquartered in the United Kingdom 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?
THG Fluently, headquartered in United Kingdom, tops this list with the largest team on record.
Which city has the most human-in-the-loop translation platforms?
London leads with 42 headquartered companies, followed by Edinburgh (5) and Manchester (5).
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 472 verified decision-maker contacts tracked across these 99 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 28, 2026.
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Download this list →Related lists
Human-in-the-loop translation platforms by geography
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- Human-in-the-loop translation platforms based in Brazil
- Human-in-the-loop translation platforms based in Canada
- Human-in-the-loop translation platforms based in France
- Human-in-the-loop translation platforms based in Germany
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- Human-in-the-loop translation platforms based in Italy
- Human-in-the-loop translation platforms based in the Netherlands
- Human-in-the-loop translation platforms based in Spain
- Human-in-the-loop translation platforms based in Türkiye
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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.
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- Human-in-the-loop translation platforms based in London, United Kingdom
- Human-in-the-loop translation platforms based in Argentina
- Human-in-the-loop translation platforms based in Brazil
- Human-in-the-loop translation platforms based in Canada
- Human-in-the-loop translation platforms based in France
- Human-in-the-loop translation platforms based in Germany