Company lists · Data refreshed September 2026

Top 25 Multilingual voice AI companies based in the United Kingdom

Name: Multilingual voice AI companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 145 companies tracked

RevenueBase identified 145 multilingual voice AI companies headquartered in the United Kingdom as of September 2026 and tracks 12,488 professional contacts across them, including 5,737 with verified work emails and 802 with mobile numbers. London is the largest hub.

This list covers multilingual voice AI companies 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

145Companies

12,488Contacts tracked

5,737Verified emails

802Mobile numbers

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The 25 largest multilingual voice AI companies based in the United Kingdom

Ranked by team size

Top 25 of 145 multilingual voice AI companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names multilingual voice AI companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	RWS GroupIndirect evidence	Maidenhead, United KingdomHQ checked Sep 5, 2026	5,001-10,000	9,843
	“Welcome to RWS!” Source: company website · checked Sep 5, 2026
2	Mother TonguePartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	309
	“Mother Tongue builds custom multilingual content solutions for global brands, powered by Creative Language Intelligence.” Source: company website · checked Sep 5, 2026
3	Translate PlusIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	258
	“translate plus, part of Publicis Groupe, is an award-winning language services provider (LSP) and technology company.” Source: company website · checked Sep 5, 2026
4	Global LingoPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	142
	“At Global Lingo, we help you connect with your international audiences through our premier language and AI driven solutions.” Source: company website · checked Sep 5, 2026
5	Lingo24Indirect evidence	Edinburgh, United KingdomHQ checked Sep 5, 2026	51-200	130
	“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: company website · checked Sep 5, 2026
6	SpeechmaticsPartial evidence	Cambridge, United KingdomHQ checked Sep 5, 2026	51-200	115
	“Speechmatics is the world’s leading expert in speech technology, combining the latest breakthroughs in AI and ML to unlock the business value in human speech.” Source: company website · checked Sep 5, 2026
7	ColossyanPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	94
	“Colossyan is an AI video platform where anyone can easily turn text, documents, presentations and screen recordings into avatar‑narrated training videos, no editing experience…” Source: company website · checked Sep 5, 2026
8	Codex GlobalIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	86
	“Codex Global is a forward-thinking Language Solutions Integrator: we work with international brands and organisations to ensure they are deploying best-of-breed technology and…” Source: company website · checked Sep 5, 2026
9	The Voiceover GalleryPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	67
	“The Voiceover Gallery is an audio production company specialising in Voice, Language & Sound.” Source: company website · checked Sep 5, 2026
10	PapercupIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	61
	“Papercup is a machine learning start-up transforming the media industry.” Source: company website · checked Sep 5, 2026
11	Creative VirtualPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	52
	“Creative Virtual is a conversational AI leader recognised in the industry for our nearly two decades of experience and unmatched expertise.” Source: company website · checked Sep 5, 2026
12	GuildhawkStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	33
	“We develop multilingual human & AI solutions that outperform others to increase your revenue, improve customer retention, save time, reduce costs and protect your private data.” Source: company website · checked Sep 5, 2026
13	palabra.aiPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	32
	“We are developing an AI-driven simultaneous speech interpreter designed to connect people from diverse linguistic and cultural backgrounds.” Source: company website · checked Sep 5, 2026
14	jiva.aiPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	22
	“Jiva.ai is an AI company that uses a model fusion first approach to machine learning to provide a sophisticated platform that enables multi-modal AI.” Source: company website · checked Sep 5, 2026
15	Taia TranslationsPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	21
	“Taia Translations is a modern AI-assisted translation platform.” Source: company website · checked Sep 5, 2026
16	Alana AIPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	20
	“From pioneering AI and NLP in Latin America to achieving US$3M in sales, Alana has shaped the way brands and customers connect.” Source: company website · checked Sep 5, 2026
17	Emotii LTDPartial evidence	London, United KingdomHQ checked Sep 5, 2026	1-10	19
	“At emotii.ai, we believe that true communication goes beyond words.” Source: company website · checked Sep 5, 2026
18	Traduzz LimitedIndirect evidence	Oxford, United KingdomHQ checked Sep 5, 2026	11-50	19
	“At Traduzz Limited, we are a quality-driven translation and interpretation company with a strong focus on USA & Latin American Spanish.” Source: company website · checked Sep 5, 2026
19	Voice Talent OnlinePartial evidence	Gravesend, United KingdomHQ checked Sep 5, 2026	11-50	17
	“We are Voice Talent Online; the leading international voice over experts, creating immersive audio experiences for global brands.” Source: company website · checked Sep 5, 2026
20	NeuralspacePartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	13
	“At NeuralSpace, we are AI developers inspired by human creativity.” Source: company website · checked Sep 5, 2026
21	JIQ AIPartial evidence	London, United KingdomHQ checked Sep 5, 2026	1-10	11
	“JIQ AI is a leading developer in Conversational AI.” Source: company website · checked Sep 5, 2026
22	AiphoriaStrong evidence	Adderbury, United KingdomHQ checked Sep 5, 2026	1-10	10
	“Elevating Business with Voice AI - Aiphoria At Aiphoria, we're pioneering the next wave of voice AI technology, transforming audio data into actionable insights and opportunities.” Source: company website · checked Sep 5, 2026
23	DeepzenStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	10
	“DeepZen turns your text into audio content that’s rich with the emotion, intonation and rhythm of the natural voice by using AI.” Source: company website · checked Sep 5, 2026
24	Lucida AIPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	10
	“Helping millions of people and business teams speak foreign languages with confidence using AI.” Source: company website · checked Sep 5, 2026
25	NeuphonicPartial evidence	London, United KingdomHQ checked Sep 5, 2026	1-10	8
	“Neuphonic is building the best ultra low latency text-to-speech system to create the most natural, responsive conversations with AI possible.” Source: company website · checked Sep 5, 2026

Showing 25 of 145 multilingual voice AI companies based in the United Kingdom

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Multilingual voice AI companies based in the United Kingdom at a glance

As of Sep 5, 2026

1-10Median size (employees)

LondonLargest hub · 80 HQs

802Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Verified emails by last verification

0–30

5,164

31–60

514

61–90

90–180

180+

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 multilingual voice AI companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “multilingual voice AI companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among multilingual voice AI companies, 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 an evidence 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, 5,737 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 5, 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.

Multilingual voice AI companies by metro

Multilingual voice AI companies in London80

Frequently asked

How many multilingual voice AI companies are there based in the United Kingdom?

RevenueBase identified 145 multilingual voice AI companies 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?

RWS Group, headquartered in Maidenhead, tops this list with the largest team on record.

Which city has the most multilingual voice AI companies?

London leads with 80 headquartered companies, followed by Edinburgh (8) and Cambridge (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 5,737 verified decision-maker contacts tracked across these 145 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 5, 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 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.