Company lists · Data verified August 2026

Top 25 Chatbot and conversational AI companies based in the United Kingdom

Name: Chatbot and conversational AI companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 554 companies tracked

There are 554 chatbot and conversational AI companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 13,460 professional contacts across them, including 2,121 with verified work emails and 704 with mobile numbers. London is the largest hub.

This list covers chatbot and conversational AI companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

554Companies

13,460Contacts tracked

2,121Verified emails

704Mobile numbers

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The 25 largest chatbot and conversational AI companies based in the United Kingdom

Ranked by team size

Top 25 of 554 chatbot and conversational AI companies based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	24 7.ai	London	10001+	8,414	547
2	GMS	London	501-1,000	490	158
3	Netcall	Poole	201-500	348	234
4	Polyai	London	201-500	325	82
5	Decagon	London	201-500	290	171
6	Botify	London	201-500	254	152
7	Vocalcom	Uk	201-500	233	119
8	Spitch	London	51-200	79	32
9	engagely.ai	Watford	51-200	78	33
10	Maxcontact	Manchester	51-200	62	43
11	Strivemindz	Newhaven	51-200	55	14
12	Gravitas AI	London	11-50	51	28
13	Sovran AI	London	11-50	46	9
14	Nanosemantics LAB	London	51-200	29	7
15	Contactengine	London	51-200	22	13
16	Envolve Tech	Newport	11-50	17	6
17	Bluetweak	London	11-50	16	11
18	Feedyou	London	11-50	15	10
19	elay.io	London	11-50	14	2
20	The CAI Company	Bristol	11-50	10	7
21	IT Solutions	London	11-50	10	6
22	Synthetix	Ely	11-50	10	6
23	zappr.ai	London	11-50	10	2
24	Converse360	High Wycombe	11-50	9	6
25	Voxme Brasil	Colchester	11-50	9	6

Showing 25 of 554 chatbot and conversational AI companies based in the United Kingdom

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Chatbot and conversational AI companies based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 304 HQs

704Contacts with mobile numbers

11Emails re-verified in last 30 days

Companies by employee count

1-10

377

11-50

148

51-200

201-500

501-1,000

10001+

Chatbot and conversational AI companies by metro

Metro	Companies
Chatbot and conversational AI companies in London	304
Chatbot and conversational AI companies in Manchester	25
Chatbot and conversational AI companies in Edinburgh	10
Chatbot and conversational AI companies in Leeds	8
Chatbot and conversational AI companies in Cardiff	6
Chatbot and conversational AI companies in Bristol	6
Chatbot and conversational AI companies in Glasgow	6

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “chatbot and conversational AI companies”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 11 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many chatbot and conversational AI companies are there based in the United Kingdom?

There are 554 chatbot and conversational AI companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

24 7.ai, headquartered in London, tops this list with the largest team on record.

Which city has the most chatbot and conversational AI companies?

London leads with 304 headquartered companies, followed by Manchester (25) and Edinburgh (10).

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 2,121 verified decision-maker contacts tracked across these 554 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.