Company lists · Data refreshed September 2026
Top 25 Voice AI platforms based in the United Kingdom
RevenueBase identified 85 voice AI platforms headquartered in the United Kingdom as of September 2026 and tracks 507 professional contacts across them, including 190 with verified work emails. London is the largest hub.
This list covers voice AI 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 29, 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 voice AI platforms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 115 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 30 contacts → | ||||
Indirect evidence “At Syndeo, our name means “to connect”, and that’s exactly what we help brands do: connect with customers through smarter, more human conversations.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 20 contacts → | ||||
Partial evidence “From pioneering AI and NLP in Latin America to achieving US$3M in sales, Alana has shaped the way brands and customers connect.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 11 contacts → | ||||
Partial evidence “JIQ AI is a leading developer in Conversational AI.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 10 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 10 contacts → | ||||
Strong evidence “Charisma.ai is a world-leading AI-platform company dedicated to creating dynamic, interactive conversational experiences.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 10 contacts → | ||||
Strong evidence “DeepZen turns your text into audio content that’s rich with the emotion, intonation and rhythm of the natural voice by using AI.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 10 contacts → | ||||
Strong evidence “Cloudax is the always connected conversational AI platform.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 8 contacts → | ||||
Partial evidence “Neuphonic is building the best ultra low latency text-to-speech system to create the most natural, responsive conversations with AI possible.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 7 contacts → | ||||
Partial evidence “Empowering Digital Experiences with Intelligent AI Solutions: At Sodaclick, we redefine the future of digital interactions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 7 contacts → | ||||
Partial evidence “INATIGO-A Global WealthTech100-Listed Research, Innovation & AI technology company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 contacts → | ||||
Partial evidence “SOME1 builds custom AI-native software at orders of magnitude faster than traditional development.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 6 contacts → | ||||
Indirect evidence “Voxta offers the latest in speech technology.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 5 contacts → | ||||
Partial evidence “Provider of Voice analytics capability to automate the assessment of communication and coordinations skills of teams operating in high-stakes environments.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5 contacts → | ||||
Partial evidence “At Loud and Clear Technology, we are transforming frontline operations through the power of voice.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 5 contacts → | ||||
Strong evidence “CarPass delivers a complete AI-powered communications platform for automotive retailers, enabling seamless customer engagement across inbound and outbound voice, WhatsApp, web…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 5 contacts → | ||||
Indirect evidence “Every missed call, delayed response, or unmade outbound follow-up is lost potential.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 contacts → | ||||
Indirect evidence “Elevate your company's customer service or software control capabilities with our groundbreaking natural language and speech recognition technology.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 5 contacts → | ||||
Indirect evidence “Amplifirm was built on the belief that progress happens when we empower people with the right tools.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Indirect evidence “Text to Speech and Speech to Text engine.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 4 contacts → | ||||
Strong evidence “A Pure & Flawless Ai Voice Generator Thanks to some impressively advanced AI algorithms and cutting-edge deep learning technology, this Ai voice generator can swiftly turn your…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 contacts → | ||||
Strong evidence “My Voice AI Ltd is a privately held company and is a pioneer and leader in conversational AI.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Partial evidence “Call The AI | Revolutionizing everyday interactions with cutting-edge AI solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Partial evidence “Embracing rapid technological advancements, focussing in voice analytics, we deliver intelligent, cutting-edge solutions that boost operational efficiency, elevate customer…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Indirect evidence “We are creating exceptional human experiences through a greater sense of hearing.” Source: RevenueBase Database · checked Sep 29, 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: voice AI 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 voice AI platforms.
- Partial evidence
- Its own public description names part of voice AI platforms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name voice AI 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 85 voice AI platforms based in the United Kingdom
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 190 reachable decision-makers.
Free signup · no credit card
Voice AI platforms based in the United Kingdom at a glance
As of Sep 29, 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 85 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 voice AI 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 “voice AI 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 voice AI 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 voice AI 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, 190 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 29, 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.
Voice AI 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 voice AI 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 voice AI platforms are there based in the United Kingdom?
RevenueBase identified 85 voice AI 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?
Speechmatics, headquartered in Cambridge, tops this list with the largest team on record.
Which city has the most voice AI platforms?
London leads with 50 headquartered companies, followed by Cambridge (4) and Manchester (3).
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 190 verified decision-maker contacts tracked across these 85 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 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 85 voice AI platforms based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Voice AI platforms by geography
- Voice AI platforms based in London, United Kingdom
- Voice AI platforms based in New York, United States
- Voice AI platforms based in San Francisco, United States
- Voice AI platforms based in Australia
- Voice AI platforms based in Canada
- Voice AI platforms based in France
- Voice AI platforms based in Germany
- Voice AI platforms based in India
- Voice AI platforms based in Spain
- Voice AI platforms based in the United States
Browse the directory
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Voice AI platforms based in London, United Kingdom
- Voice AI platforms based in New York, United States
- Voice AI platforms based in San Francisco, United States
- Voice AI platforms based in Australia
- Voice AI platforms based in Canada
- Voice AI platforms based in France