Company lists · Data refreshed September 2026

Top 25 Language interpretation services based in London, United Kingdom

Name: Language interpretation services based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 12, 2026 177 companies tracked

RevenueBase identified 177 language interpretation services headquartered in London, United Kingdom as of September 2026 and tracks 1,972 professional contacts across them, including 310 with verified work emails and 95 with mobile numbers. London is the largest hub.

This list covers language interpretation services headquartered in London, 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 12, 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 12, 2026 86% judged on-target in blind review

177Companies

1,972Contacts tracked

310Verified emails

95Mobile numbers

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The 25 largest language interpretation services based in London, United Kingdom

Ranked by team size

Top 25 of 177 language interpretation services based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 12, 2026. RevenueBase Smart Search rates how each company's information relates to language interpretation services: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Languageline Solutions UK	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	448 contacts →
	Partial evidence “LanguageLine Solutions offers face-to-face interpreting services across the UK, market leading telephone interpreting services in more than 240 languages, British Sign Language…” Source: RevenueBase Database · checked Sep 12, 2026
2	Clear Voice	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	213 contacts →
	Partial evidence “Connect with the people who matter, no matter the language.” Source: RevenueBase Database · checked Sep 12, 2026
3	Global Lingo	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	142 contacts →
	Partial 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 12, 2026
4	The Language Shop LTD	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	140 contacts →
	Partial evidence “The Language Shop is one of the UK's leading providers of interpreting, translation and examination services to the private and public sector.” Source: RevenueBase Database · checked Sep 12, 2026
5	Creative Translation	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	111 contacts →
	Indirect evidence “As a company, we take great care to ensure the best possible result for our clients.” Source: RevenueBase Database · checked Sep 12, 2026
6	Transladiem	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	76 contacts →
	Partial evidence “Transladiem is a language service provider with a human face.” Source: RevenueBase Database · checked Sep 12, 2026
7	Wordminds	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	62 contacts →
	Partial evidence “We are a centralised language service hub specially developed for e-learning and multimedia content.” Source: RevenueBase Database · checked Sep 12, 2026
8	Absolute Translations LTD	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	56 contacts →
	Indirect evidence “Our international reputation, over professional localised translators and superior customer service make Absolute Translations a reliable choice.” Source: RevenueBase Database · checked Sep 12, 2026
9	Translate By Humans	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	25 contacts →
	Partial evidence “Translate By Humans is a Language Services Provider (LSP) headquartered in London, United Kingdom.” Source: RevenueBase Database · checked Sep 12, 2026
10	lingohaus.com	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	22 contacts →
	Partial evidence “Professional Language Services for Businesses, NGOs & Governments.” Source: RevenueBase Database · checked Sep 12, 2026
11	DWL	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	20 contacts →
	Partial evidence “DWL, a BIG Language company, is how even the most complex, highly regulated organizations can finally trust every word.” Source: RevenueBase Database · checked Sep 12, 2026
12	Oncall Europa Languages Services	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	15 contacts →
	Partial evidence “ONCALL Europa Languages Services is a world leader in quality interpreting and translation services.” Source: RevenueBase Database · checked Sep 12, 2026
13	Bongo Translation	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	13 contacts →
	Partial evidence “Bongo Translation provides professional translation and localization services for companies working across languages, markets and regulated industries.” Source: RevenueBase Database · checked Sep 12, 2026
14	Language Reach	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	10 contacts →
	Partial evidence “Language Reach is a London-based translation and interpreting agency creating effective solutions for businesses across the globe.” Source: RevenueBase Database · checked Sep 12, 2026
15	Hourglass Language Services Traduzioni, Interpretariato, Formazione	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	1-10	8 contacts →
	Indirect evidence “Siamo un’agenzia di traduzioni e servizi linguistici giovane e dinamica, tutta al femminile, nata dall’incontro di esperienze e competenze in ambito linguistico e giuridico.” Source: RevenueBase Database · checked Sep 12, 2026
16	1st Translation Company Limited	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	201-500	8 contacts →
	Indirect evidence “Established in 1968, 1st Translation was one of the very first translation services in the UK.” Source: RevenueBase Database · checked Sep 12, 2026
17	Aplomb Translations	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	1-10	8 contacts →
	Partial evidence “Aplomb Translations - Top Legal, Financial, Technical & Medical translation and interpreting services in All Languages.” Source: RevenueBase Database · checked Sep 12, 2026
18	Trustlate	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	1-10	7 contacts →
	Indirect evidence “TRUSTLATE is a fast-growing company that has expanded its services to cater to the needs of clients all over the world.” Source: RevenueBase Database · checked Sep 12, 2026
19	Wordlywise Language Services LTD	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	1-10	7 contacts →
	Indirect evidence “WordlyWise delivers simultaneous interpreting solutions to domestic and international clients from different industries and different types of organisations.” Source: RevenueBase Database · checked Sep 12, 2026
20	OSI	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	6 contacts →
	Partial evidence “OSI is a specialized provider of translation & language services, multilingual content production and international marketing.” Source: RevenueBase Database · checked Sep 12, 2026
21	London Translations	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	6 contacts →
	Indirect evidence “At London Translations, we work with a constantly expanding network of highly experienced linguists.” Source: RevenueBase Database · checked Sep 12, 2026
22	Espresso Translations	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	1-10	4 contacts →
	Indirect evidence “Espresso Translations is a fast-growing, leading translation agency providing a vast array of professional translation services to businesses and individuals worldwide.” Source: RevenueBase Database · checked Sep 12, 2026
23	Transcription City Multilingual Transcription, Subtitling, Minute Taking & Translation Specialists	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	1-10	4 contacts →
	Indirect evidence “At Transcription City we help businesses, professionals, and public sector organisations save time, reduce admin burden, and stay compliant-while making their content and…” Source: RevenueBase Database · checked Sep 12, 2026
24	BSL First	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	1-10	3 contacts →
	Partial evidence “Specialist services in sign language interpreting and translation, as well as training and courses in sign language interpreting and translation- Sign language interpreting and…” Source: RevenueBase Database · checked Sep 12, 2026
25	Omnicis Global Communications	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	2 contacts →
	Partial evidence “Since 2009, Omnicis has been helping SMEs and global brands engage with their target markets effectively by developing language solutions tailored to their industry and adding…” Source: RevenueBase Database · checked Sep 12, 2026

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: language interpretation services. 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 language interpretation services.
Partial evidence: Its own public description names part of language interpretation services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name language interpretation services. 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 177 language interpretation services based in London, United Kingdom

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Language interpretation services based in London, United Kingdom at a glance

As of Sep 12, 2026

15.7%Verified-email coverage

4.8%Mobile-number coverage

11.1Average contacts per company

1-10Median size (employees)

96.6%Largest-city concentration · London

Sep 12, 2026Page data refreshed

Companies by employee count

1-10

101

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 14.0d

2590–30

4731–60

261–90

190–180

1180+

Company record updated

Median 77.0d

00–30

63731–60

92861–90

28690–180

121180+

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 language interpretation services, 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 London, United Kingdom whose own description of what they do matches “language interpretation services”. 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 language interpretation services), 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 language interpretation services, and records with no verified work email. Companies headquartered outside London 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, 310 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 12, 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.

Language interpretation services by metro in the United Kingdom

Language interpretation services in London171

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 language interpretation services, 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 language interpretation services are there based in London, United Kingdom?

RevenueBase identified 177 language interpretation services headquartered in London, 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?

Languageline Solutions UK, headquartered in London, tops this list with the largest team on record.

Which city has the most language interpretation services?

London leads with 171 headquartered companies, followed by Birmingham (19) and Manchester (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 310 verified decision-maker contacts tracked across these 177 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 12, 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.