Company lists · Data verified August 2026

Top 25 Conversational AI platforms based in the United Kingdom

Name: Conversational AI platforms 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 371 companies tracked

There are 371 conversational AI platforms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 11,726 professional contacts across them, including 1,482 with verified work emails and 581 with mobile numbers. London is the largest hub.

This list covers conversational AI platforms 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.

371Companies

11,726Contacts tracked

1,482Verified emails

581Mobile numbers

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The 25 largest conversational AI platforms based in the United Kingdom

Ranked by team size

Top 25 of 371 conversational AI platforms 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	Polyai	London	201-500	325	82
4	Decagon	London	201-500	290	171
5	Streetbees	London	51-200	96	7
6	Spitch	London	51-200	79	32
7	engagely.ai	Watford	51-200	78	33
8	Gravitas AI	London	11-50	51	28
9	Core Cognitics	Ipswich	51-200	50	9
10	Sovran AI	London	11-50	46	9
11	IOVOX	London	11-50	34	26
12	Veyn AI	London	11-50	32	6
13	Quickblox	London	11-50	31	14
14	Nanosemantics LAB	London	51-200	29	7
15	Ciptex	Manchester	11-50	26	11
16	Contactengine	London	51-200	22	13
17	Connectiveone	London	11-50	22	4
18	Taap Think Build RUN	Borehamwood	11-50	20	12
19	Envolve Tech	Newport	11-50	17	6
20	Tovie AI	London	11-50	12	7
21	The CAI Company	Bristol	11-50	10	7
22	IT Solutions	London	11-50	10	6
23	zappr.ai	London	11-50	10	2
24	Converse360	High Wycombe	11-50	9	6
25	charisma.ai	Oxford	11-50	9	6

Showing 25 of 371 conversational AI platforms based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,482 reachable decision-makers.

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Conversational AI platforms based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 208 HQs

581Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

242

11-50

111

51-200

201-500

501-1,000

10001+

Conversational AI platforms by metro

Metro	Companies
Conversational AI platforms in London	208
Conversational AI platforms in Manchester	16
Conversational AI platforms in Edinburgh	7
Conversational AI platforms in Glasgow	4
Conversational AI platforms in Cardiff	4
Conversational AI platforms in Bristol	3
Conversational AI platforms in Bradford	3

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 “conversational AI platforms”, 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; 4 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 conversational AI platforms are there based in the United Kingdom?

There are 371 conversational AI platforms 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 conversational AI platforms?

London leads with 208 headquartered companies, followed by Manchester (16) and Edinburgh (7).

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 1,482 verified decision-maker contacts tracked across these 371 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.