Company lists · Data verified August 2026

Top 25 Customer messaging platforms based in the United Kingdom

Name: Customer messaging 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 262 companies tracked

There are 262 customer messaging platforms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 8,576 professional contacts across them, including 3,500 with verified work emails and 2,026 with mobile numbers. London is the largest hub.

This list covers customer messaging 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.

262Companies

8,576Contacts tracked

3,500Verified emails

2,026Mobile numbers

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The 25 largest customer messaging platforms based in the United Kingdom

Ranked by team size

Top 25 of 262 customer messaging 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	BRAZE	London	1,001-5,000	2,133	1,457
2	Attentive	London	1,001-5,000	1,328	230
3	RESQ	Seaham	1,001-5,000	493	149
4	Symphony	Belfast	201-500	489	260
5	Imimobile Part Of Webex	London	1,001-5,000	436	54
6	Decagon	London	201-500	290	171
7	Kaleyra	London	501-1,000	241	76
8	Vocalcom	Uk	201-500	233	119
9	Leapxpert	n/a	51-200	177	86
10	Luware	London	51-200	154	110
11	DIXA	London	51-200	141	6
12	Route 101 LTD	Bristol	51-200	135	93
13	Daktela	Chester	51-200	98	72
14	Goodays	London	51-200	92	51
15	Signal	Cheltenham	51-200	84	1
16	engagely.ai	Watford	51-200	78	33
17	Cloudcall	Leicester	51-200	75	49
18	EDESK	London	51-200	64	37
19	Nebula	Guildford	51-200	60	29
20	Textmagic	Romford	51-200	54	1
21	Teleware PLC	Easingwold	51-200	49	25
22	Telogo Communications LTD	London	51-200	35	2
23	Bringo	London	51-200	33	22
24	Mission Labs	Manchester	51-200	29	12
25	Nanosemantics LAB	London	51-200	29	7

Showing 25 of 262 customer messaging platforms based in the United Kingdom

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Customer messaging platforms based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 121 HQs

2,026Contacts with mobile numbers

7Emails re-verified in last 30 days

Companies by employee count

1-10

136

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Customer messaging platforms by metro

Metro	Companies
Customer messaging platforms in London	121
Customer messaging platforms in Manchester	9
Customer messaging platforms in Bristol	4
Customer messaging platforms in Milton Keynes	4
Customer messaging platforms in Poole	4
Customer messaging platforms in Edinburgh	3
Customer messaging platforms in Chester	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 “customer messaging 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; 7 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 customer messaging platforms are there based in the United Kingdom?

There are 262 customer messaging platforms headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most customer messaging platforms?

London leads with 121 headquartered companies, followed by Manchester (9) and Bristol (4).

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 3,500 verified decision-maker contacts tracked across these 262 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.