Company lists · Data refreshed September 2026

Top 25 Enterprise chatbot developers based in London, United Kingdom

Name: Enterprise chatbot developers based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 130 companies tracked

RevenueBase identified 130 enterprise chatbot developers headquartered in London, United Kingdom as of September 2026 and tracks 2,660 professional contacts across them, including 529 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers enterprise chatbot developers 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 28, 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 28, 2026 86% judged on-target in blind review

130Companies

2,660Contacts tracked

529Verified emails

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The 25 largest enterprise chatbot developers based in London, United Kingdom

Ranked by team size

Top 25 of 130 enterprise chatbot developers based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise chatbot developers: 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 28, 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 28, 2026
2	Venpep Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	94 contacts →
	Indirect evidence “A software product development company with over 250 global customers, VenPep builds web apps, mobile apps, and SAAS applications, including its portfolio Jumbow.io & Todook.io.” Source: RevenueBase Database · checked Sep 28, 2026
3	Creative Virtual	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	52 contacts →
	Indirect 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 28, 2026
4	Gravitas AI	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
5	Veyn AI	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
6	Nanosemantics LAB	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
7	Contactengine	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
8	Connectiveone	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
9	Clevva	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “CLEVVA specializes in Virtual Agents.” Source: RevenueBase Database · checked Sep 28, 2026
10	Alana AI	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
11	Athena AI	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	16 contacts →
	Indirect 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 28, 2026
12	Molin AI	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	12 contacts →
	Partial evidence “Setting new standards for eCommerce support, Molin AI provides the most accurate AI chatbot available.” Source: RevenueBase Database · checked Sep 28, 2026
13	zappr.ai	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “At Zappr.AI, we're passionate about helping businesses, teams, and individuals unlock the full potential of artificial intelligence.” Source: RevenueBase Database · checked Sep 28, 2026
14	Swiftsell AI	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	9 contacts →
	Indirect evidence “Swiftsell, Customer operations that run themselves.” Source: RevenueBase Database · checked Sep 28, 2026
15	Harriet	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “Harriet is the control plane for AI inside your organisation.” Source: RevenueBase Database · checked Sep 28, 2026
16	Stobee	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “At Stobee, we provide the space for you to enhance customer interactions, making more memorable meaningful relationships.” Source: RevenueBase Database · checked Sep 28, 2026
17	Amplifirm	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	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 28, 2026
18	Engageai	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	4 contacts →
	Indirect evidence “EngageAI builds and manages AI voice agents, chat agents and custom automations that connect CRM, accounts and sales tools for UK businesses.” Source: RevenueBase Database · checked Sep 28, 2026
19	Ebotify	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “eBotify is an AI-driven conversational bot-building platform to create tailor-made chatbots for Lead generation, Live chat support, Interactive Landing Pages, Surveys, inquiries…” Source: RevenueBase Database · checked Sep 28, 2026
20	Spixii	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	2 contacts →
	Indirect evidence “Self-service for high-value requests in regulated industries 20 times quicker than phone or email.” Source: RevenueBase Database · checked Sep 28, 2026
21	Chatbot UX	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “At ChatBot UX, we focus on helping beauty and wellness businesses enhance their customers' social media experience through chatbot automation directly on the channels they prefer…” Source: RevenueBase Database · checked Sep 28, 2026
22	Orimon AI	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	2 contacts →
	Partial evidence “Orimon.ai - The Premier Sales-Boosting Chatbot Platform At Orimon.ai, we offer the most sophisticated, sales-enabling chatbot builder designed to transform your customer…” Source: RevenueBase Database · checked Sep 28, 2026
23	Chatrace	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “Chatrace is a platform that allows your business to automate sales, customer support, and marketing using chatbots on channels like Facebook Messenger, Instagram, WhatsApp, SMS…” Source: RevenueBase Database · checked Sep 28, 2026
24	Conversations By AMI	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	1 contacts →
	Partial evidence “Forget everything you know about chatbots.” Source: RevenueBase Database · checked Sep 28, 2026
25	Brainwave AI Technologies	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	1 contacts →
	Indirect evidence “Improve your business with AI.” Source: RevenueBase Database · checked Sep 28, 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: enterprise chatbot developers. 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 enterprise chatbot developers.
Partial evidence: Its own public description names part of enterprise chatbot developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise chatbot developers. 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 130 enterprise chatbot developers based in London, United Kingdom

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Enterprise chatbot developers based in London, United Kingdom at a glance

As of Sep 28, 2026

19.9%Verified-email coverage

20.5Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 130 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 enterprise chatbot developers, 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 “enterprise chatbot developers”. 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 enterprise chatbot developers), 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 enterprise chatbot developers, 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, 529 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 28, 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 enterprise chatbot developers, 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 enterprise chatbot developers are there based in London, United Kingdom?

RevenueBase identified 130 enterprise chatbot developers 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 enterprise chatbot developers?

London leads the United Kingdom with 130 headquartered companies, followed by Manchester (12) and Edinburgh (6).

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 529 verified decision-maker contacts tracked across these 130 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 28, 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.