Company lists · Data refreshed September 2026

Top 25 AI customer service automation companies based in London, United Kingdom

Name: AI customer service automation companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 431 companies tracked

RevenueBase identified 431 AI customer service automation companies headquartered in London, United Kingdom as of September 2026 and tracks 4,813 professional contacts across them, including 1,169 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers AI customer service automation companies 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 30, 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 30, 2026 86% judged on-target in blind review

431Companies

4,813Contacts tracked

1,169Verified emails

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The 25 largest AI customer service automation companies based in London, United Kingdom

Ranked by team size

Top 25 of 431 AI customer service automation companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to AI customer service automation companies: 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	Quantanite	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	1,001-5,000	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 30, 2026
2	ATTIO	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	145 contacts →
	Partial evidence “Attio is the AI CRM for the next era of companies.” Source: RevenueBase Database · checked Sep 30, 2026
3	Natterbox	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	127 contacts →
	Partial evidence “Natterbox is an AI-powered contact center solution that's natively integrated to Salesforce.” Source: RevenueBase Database · checked Sep 30, 2026
4	FWF	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	96 contacts →
	Partial evidence “FWF is a leading Intelligent Automation (IA) professional services company.” Source: RevenueBase Database · checked Sep 30, 2026
5	Sirius Support	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	85 contacts →
	Strong evidence “Humanizing AI-Powered Customer Support The future of customer support is intelligent, efficient-and unmistakably human.” Source: RevenueBase Database · checked Sep 30, 2026
6	Digitalgenius	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	70 contacts →
	Strong evidence “DigitalGenius allows online retailers and ecommerce brands to fully resolve customer service queries using the power of AI and automation.” Source: RevenueBase Database · checked Sep 30, 2026
7	HOOK	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	63 contacts →
	Strong evidence “Hook is building a new world for Customer Success, powered by AI.” Source: RevenueBase Database · checked Sep 30, 2026
8	Pateam	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	58 contacts →
	Strong evidence “We transform customer experience operations through Agentic AI, CX platforms, and Intelligent Automation.” Source: RevenueBase Database · checked Sep 30, 2026
9	Creative Virtual	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	52 contacts →
	Partial 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 30, 2026
10	Gravitas AI	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	50 contacts →
	Strong 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 30, 2026
11	Socialbear	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	501-1,000	50 contacts →
	Strong 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 30, 2026
12	Unitary	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	47 contacts →
	Indirect evidence “Automate manual workflows with zero engineering effort or upfront costs.” Source: RevenueBase Database · checked Sep 30, 2026
13	NEW Digital Intelligence	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	46 contacts →
	Strong evidence “At NDI, we enable artificial Intelligence in businesses for companies of all sizes through simple AI transformation and risk-free AI Automation.” Source: RevenueBase Database · checked Sep 30, 2026
14	Sovran AI	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	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 30, 2026
15	IOVOX	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	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 30, 2026
16	Veyn AI	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	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 30, 2026
17	Nanosemantics LAB	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	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 30, 2026
18	ORTOO	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	25 contacts →
	Indirect evidence “Ortoo helps organizations control how work is executed in Salesforce.” Source: RevenueBase Database · checked Sep 30, 2026
19	Contactengine	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	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 30, 2026
20	Brainpool AI	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	22 contacts →
	Partial evidence “Brainpool is an Artificial Intelligence services company powered by a global network of 500 AI and Machine Learning experts coming from some of the leading AI hubs such as UCL…” Source: RevenueBase Database · checked Sep 30, 2026
21	Connectiveone	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	22 contacts →
	Strong evidence “ConnectiveOne is an omnichannel AI communication platform designed to help companies deliver top-tier customer service.” Source: RevenueBase Database · checked Sep 30, 2026
22	Clevva	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	20 contacts →
	Indirect evidence “CLEVVA specializes in Virtual Agents.” Source: RevenueBase Database · checked Sep 30, 2026
23	biami.io	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	20 contacts →
	Indirect evidence “Companies struggle to win in competitive markets because of one very important element that is a bottleneck today - an employee.” Source: RevenueBase Database · checked Sep 30, 2026
24	Alana AI	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	20 contacts →
	Strong 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 30, 2026
25	Mevrik	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	18 contacts →
	Strong evidence “Mevrik is an AI-powered all-in-one platform to connect, engage, and delight customers across digital channels.” Source: RevenueBase Database · checked Sep 30, 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: AI customer service automation companies. 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 AI customer service automation companies.
Partial evidence: Its own public description names part of AI customer service automation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name AI customer service automation companies. 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 431 AI customer service automation companies based in London, United Kingdom

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AI customer service automation companies based in London, United Kingdom at a glance

As of Sep 30, 2026

24.3%Verified-email coverage

11.2Average contacts per company

1-10Median size (employees)

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

288

11-50

122

51-200

201-500

501-1,000

1,001-5,000

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 431 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 AI customer service automation companies, 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 “AI customer service automation companies”. 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 AI customer service automation companies), 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 AI customer service automation companies, 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, 1,169 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 30, 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 AI customer service automation companies, 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 AI customer service automation companies are there based in London, United Kingdom?

RevenueBase identified 431 AI customer service automation companies 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 AI customer service automation companies?

London leads the United Kingdom with 431 headquartered companies, followed by Manchester (31) and Edinburgh (14).

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 1,169 verified decision-maker contacts tracked across these 431 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 30, 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.