Company lists · Data refreshed September 2026
Top 25 Conversational AI contact centers based in London, United Kingdom
RevenueBase identified 225 conversational AI contact centers headquartered in London, United Kingdom as of September 2026 and tracks 3,579 professional contacts across them, including 791 with verified work emails. Across the United Kingdom, London is the largest hub for this category.
This list covers conversational AI contact centers 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 27, 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 conversational AI contact centers based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,991 contacts → | ||||
Partial evidence “We believe customers and employees should be looked after, and every interaction is an opportunity for a conversation and to learn more about them.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 127 contacts → | ||||
Strong evidence “Natterbox is an AI-powered contact center solution that's natively integrated to Salesforce.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 52 contacts → | ||||
Strong evidence “Creative Virtual is a conversational AI leader recognised in the industry for our nearly two decades of experience and unmatched expertise.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 50 contacts → | ||||
Partial evidence “Gravitas AI is a niche artificial intelligence and blockchain company with a focus on empowering organisations to optimize productivity and enhance customer experience.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 50 contacts → | ||||
Partial evidence “Socialbear® is the global leader in AI + Human 🤖 Customer Support and Community Management - powering support for the world’s largest brands.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 46 contacts → | ||||
Partial evidence “Founded in 2018 by a team with international experience, develops conversational automation solutions that manage for some of the ’.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 43 contacts → | ||||
Strong evidence “Gradient Labs is the conversational AI platform transforming customer operations in financial services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 35 contacts → | ||||
Strong evidence “The iovox AI platform unlocks the potential of every customer conversation, from calls and texts to chats.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 32 contacts → | ||||
Strong evidence “At Veyn.ai, we are at the forefront of innovation, transforming the way businesses connect with their customers through advanced Conversational AI and Generative AI technologies.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 30 contacts → | ||||
Strong evidence “RocketPhone.ai empowers organisations to unlock the full potential of their customer conversations by transforming them into actionable insights.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 30 contacts → | ||||
Indirect evidence “Over the 14 years of experience, Nanosemantics Lab has accumulated multiple technologies for human-machine communication, in addition to the vast knowledge database of dialogs in…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 26 contacts → | ||||
Indirect evidence “Popp helps forward-thinking staffing and recruitment firms automate candidate workflows, end-to-end.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 22 contacts → | ||||
Strong evidence “ContactEngine is an award-winning proactive conversational AI technology used by large corporations across industries to automate customer communications.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 22 contacts → | ||||
Partial evidence “ConnectiveOne is an omnichannel AI communication platform designed to help companies deliver top-tier customer service.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 20 contacts → | ||||
Indirect evidence “CLEVVA specializes in Virtual Agents.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 18 contacts → | ||||
Partial evidence “Mevrik is an AI-powered all-in-one platform to connect, engage, and delight customers across digital channels.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 16 contacts → | ||||
Strong evidence “BlueTweak is an AI-powered omnichannel customer support platform that brings every conversation-voice, email, chat, and social-into one interaction timeline.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 16 contacts → | ||||
Strong evidence “Athena AI is a no-code conversational platform that helps businesses unify customer communication across all messengers, and automate it with AI Agents that plug directly into…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 15 contacts → | ||||
Partial evidence “Fully Autonomous Customer Experiences Our autonomous AI technology handles all customer interactions seamlessly, with no need for human agents.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 15 contacts → | ||||
Indirect evidence “3C Online is a UK-based customer service outsourcing firm handling voice, email, chat and digital channels for growing brands.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 13 contacts → | ||||
Partial evidence “Tovie AI delivers AI solutions from voice and text bots to agents driven by Generative AI.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 12 contacts → | ||||
Strong evidence “At Puppeteer, we’re building conversational AI for healthcare-HIPAA-compliant AI voice agents and SMS agents powered by LLMs-to automate patient communication end-to-end.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 11 contacts → | ||||
Strong evidence “JIQ AI is a leading developer in Conversational AI.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 10 contacts → | ||||
Indirect evidence “Merx helps brands sell on messaging channels (e.g.” Source: RevenueBase Database · checked Sep 27, 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: conversational AI contact centers. 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 conversational AI contact centers.
- Partial evidence
- Its own public description names part of conversational AI contact centers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name conversational AI contact centers. 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 225 conversational AI contact centers based in London, United Kingdom
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Conversational AI contact centers based in London, United Kingdom at a glance
As of Sep 27, 2026Companies by employee count
Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 225 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 conversational AI contact centers, 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 “conversational AI contact centers”. 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 conversational AI contact centers), 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 conversational AI contact centers, 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, 791 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 27, 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.
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 conversational AI contact centers, 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 conversational AI contact centers are there based in London, United Kingdom?
RevenueBase identified 225 conversational AI contact centers 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?
Quantanite, headquartered in London, tops this list with the largest team on record.
Which city in the United Kingdom has the most conversational AI contact centers?
London leads the United Kingdom with 225 headquartered companies, followed by Manchester (21) and Edinburgh (11).
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 791 verified decision-maker contacts tracked across these 225 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 27, 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.
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