Company lists · Data refreshed September 2026

Top 25 Virtual agent vendors based in the United Kingdom

Name: Virtual agent vendors based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 352 companies tracked

RevenueBase identified 352 virtual agent vendors headquartered in the United Kingdom as of September 2026 and tracks 3,981 professional contacts across them, including 916 with verified work emails. London is the largest hub.

This list covers virtual agent vendors 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 22, 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 22, 2026 86% judged on-target in blind review

352Companies

3,981Contacts tracked

916Verified emails

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The 25 largest virtual agent vendors based in the United Kingdom

Ranked by team size

Top 25 of 352 virtual agent vendors based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to virtual agent vendors: 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	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	1,001-5,000	1,991 contacts →
	Indirect 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 22, 2026
2	engagely.ai	Indirect evidence	Watford, United KingdomHQ checked Sep 22, 2026	51-200	74 contacts →
	Indirect evidence “Engagely.ai is a leading No code total CX Platform with out-of-the-box CX automation solutions that helps enterprises automate customer support and engagement & thereby creates…” Source: RevenueBase Database · checked Sep 22, 2026
3	Creative Virtual	Partial evidence	London, United KingdomHQ checked Sep 22, 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 22, 2026
4	Gravitas AI	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	50 contacts →
	Indirect 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 22, 2026
5	Core Cognitics	Partial evidence	Ipswich, United KingdomHQ checked Sep 22, 2026	51-200	48 contacts →
	Partial evidence “Core Cognitics is one of the pioneers in AI-native Business Communications (CX) solutions with AI Voice Agents and a trailblazing AI Operating System for blended Human-AI teams.” Source: RevenueBase Database · checked Sep 22, 2026
6	Unitary	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	47 contacts →
	Indirect evidence “Automate manual workflows with zero engineering effort or upfront costs.” Source: RevenueBase Database · checked Sep 22, 2026
7	NEW Digital Intelligence	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	46 contacts →
	Indirect 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 22, 2026
8	Sovran AI	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	46 contacts →
	Indirect 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 22, 2026
9	Mindset AI	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	32 contacts →
	Partial evidence “Let anyone launch AI agents in days with natural language, without draining dev resources.” Source: RevenueBase Database · checked Sep 22, 2026
10	Veyn AI	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	32 contacts →
	Indirect 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 22, 2026
11	Quickblox	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	31 contacts →
	Indirect evidence “QuickBlox is a leading cloud communication platform helping businesses bring AI-driven chat, video, and automation into their digital products-quickly, securely, and at scale.” Source: RevenueBase Database · checked Sep 22, 2026
12	syndeo.cx	Indirect evidence	Belfast, United KingdomHQ checked Sep 22, 2026	11-50	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 22, 2026
13	Nanosemantics LAB	Indirect evidence	London, United KingdomHQ checked Sep 22, 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 22, 2026
14	Build Concierge	Indirect evidence	Leeds, United KingdomHQ checked Sep 22, 2026	11-50	29 contacts →
	Indirect evidence “Build Concierge is your AI powered omnichannel customer engagement platform that converts, automates and scales.” Source: RevenueBase Database · checked Sep 22, 2026
15	Ciptex	Indirect evidence	Manchester, United KingdomHQ checked Sep 22, 2026	11-50	26 contacts →
	Indirect evidence “Ciptex: The AI-First Customer Service Platform We revolutionise customer service with our comprehensive AI-first platform, enhancing customer experiences and operational…” Source: RevenueBase Database · checked Sep 22, 2026
16	ANAM	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	22 contacts →
	Indirect evidence “Digital humans who are indistinguishable from real humans.” Source: RevenueBase Database · checked Sep 22, 2026
17	Contactengine	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	22 contacts →
	Indirect 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 22, 2026
18	Parker Software	Indirect evidence	Newcastle Under Lyme, United KingdomHQ checked Sep 22, 2026	11-50	22 contacts →
	Indirect evidence “Parker Software is the UK leader in business process automation, secure live chat and generative AI servers.” Source: RevenueBase Database · checked Sep 22, 2026
19	Connectiveone	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	22 contacts →
	Indirect evidence “ConnectiveOne is an omnichannel AI communication platform designed to help companies deliver top-tier customer service.” Source: RevenueBase Database · checked Sep 22, 2026
20	Clevva	Strong evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	20 contacts →
	Strong evidence “CLEVVA specializes in Virtual Agents.” Source: RevenueBase Database · checked Sep 22, 2026
21	Alana AI	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	20 contacts →
	Indirect 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 22, 2026
22	Envolve Tech	Indirect evidence	Newport, United KingdomHQ checked Sep 22, 2026	11-50	17 contacts →
	Indirect evidence “We're Envolve.” Source: RevenueBase Database · checked Sep 22, 2026
23	Athena AI	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	1-10	16 contacts →
	Partial 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 22, 2026
24	Redmatter LTD	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	1-10	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 22, 2026
25	Click4assistance	Partial evidence	Basildon, United KingdomHQ checked Sep 22, 2026	11-50	14 contacts →
	Partial evidence “For over 20 years, Click4Assistance has specialised in customer experience technologies, including Live Chat, Chatbots, AI Agents and Omnichannel Messaging.” Source: RevenueBase Database · checked Sep 22, 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: virtual agent vendors. 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 virtual agent vendors.
Partial evidence: Its own public description names part of virtual agent vendors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name virtual agent vendors. 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 352 virtual agent vendors based in the United Kingdom

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Virtual agent vendors based in the United Kingdom at a glance

As of Sep 22, 2026

23.0%Verified-email coverage

11.3Average contacts per company

1-10Median size (employees)

53.7%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

228

11-50

103

51-200

201-500

501-1,000

1,001-5,000

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 352 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 virtual agent vendors, 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 “virtual agent vendors”. 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 virtual agent vendors), 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 virtual agent vendors, 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, 916 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 22, 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.

Virtual agent vendors by metro

Virtual agent vendors in London189

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 virtual agent vendors, 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 virtual agent vendors are there based in the United Kingdom?

RevenueBase identified 352 virtual agent vendors 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?

Quantanite, headquartered in London, tops this list with the largest team on record.

Which city has the most virtual agent vendors?

London leads with 189 headquartered companies, followed by Manchester (16) and Edinburgh (8).

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 916 verified decision-maker contacts tracked across these 352 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 22, 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.