Company lists · Data refreshed September 2026

Top 25 Messaging platform companies based in the United Kingdom

Name: Messaging platform companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 59 companies tracked

RevenueBase identified 59 messaging platform companies headquartered in the United Kingdom as of September 2026 and tracks 3,784 professional contacts across them, including 2,314 with verified work emails and 167 with mobile numbers. London is the largest hub.

This list covers messaging platform 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 5, 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 5, 2026 86% judged on-target in blind review

59Companies

3,784Contacts tracked

2,314Verified emails

167Mobile numbers

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The 25 largest messaging platform companies based in the United Kingdom

Ranked by team size

Top 25 of 59 messaging platform companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to messaging platform companies: 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	Infobip	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	1,001-5,000	3,309 contacts →
	Partial evidence “Infobip is a global leader in omnichannel engagement powering a broad range of messaging channels, tools and solutions for advanced customer engagement, authentication and…” Source: RevenueBase Database · checked Sep 5, 2026
2	Dtsocialize	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	39 contacts →
	Partial evidence “DT Socialize is a new generation technology company offering solutions ranging from financial services, messaging and socializing tools, and digital assets brought together in a…” Source: RevenueBase Database · checked Sep 5, 2026
3	Quickblox	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	31 contacts →
	Partial 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 5, 2026
4	Imlink	Strong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	24 contacts →
	Strong evidence “Imlink is an Omnichannel Messaging Platform for Business.” Source: RevenueBase Database · checked Sep 5, 2026
5	Messagecloud	Partial evidence	Plymouth, United KingdomHQ checked Sep 5, 2026	11-50	23 contacts →
	Partial evidence “Business Mobile Messaging in the Cloud MessageCloud is a multi-award-winning mobile messaging provider.” Source: RevenueBase Database · checked Sep 5, 2026
6	Smshighway	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	22 contacts →
	Indirect evidence “SMShighway uses mobile technology to connect enterprises to their clients.” Source: RevenueBase Database · checked Sep 5, 2026
7	Umnico	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	18 contacts →
	Partial evidence “One window aggregator for business communication via social networks and messengers with client relationship platform combined.” Source: RevenueBase Database · checked Sep 5, 2026
8	YEO Messaging	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	16 contacts →
	Indirect evidence “YEO (pronounced ‘Yo’, and an acronym for Your Eye Only) was founded by a team of technology, security and design specialists.” Source: RevenueBase Database · checked Sep 5, 2026
9	HEED	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	15 contacts →
	Indirect evidence “Heed is a leading provider of innovative communication solutions for the modern workplace.” Source: RevenueBase Database · checked Sep 5, 2026
10	Aviso Messaging	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	1-10	11 contacts →
	Partial evidence “AVISO Messaging, a global messaging aggregator, was created from the partnership between 42com and Vladimir Smal.” Source: RevenueBase Database · checked Sep 5, 2026
11	Unomok	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	11 contacts →
	Partial evidence “Mok is a Notifications Infrastructure + User Engagement Platform” Source: RevenueBase Database · checked Sep 5, 2026
12	Convrs	Indirect evidence	Liverpool, United KingdomHQ checked Sep 5, 2026	1-10	11 contacts →
	Indirect evidence “At Convrs, we understand how excellent communication is crucial to building lasting customer relationships and driving business success.” Source: RevenueBase Database · checked Sep 5, 2026
13	zappr.ai	Indirect evidence	London, United KingdomHQ checked Sep 5, 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 5, 2026
14	SMS Speedway	Indirect evidence	Roweltown, United KingdomHQ checked Sep 5, 2026	1-10	9 contacts →
	Indirect evidence “Your message delivered.” Source: RevenueBase Database · checked Sep 5, 2026
15	NYOUM	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	7 contacts →
	Indirect evidence “NYOUM is A Private Social Network.” Source: RevenueBase Database · checked Sep 5, 2026
16	Text Global	Indirect evidence	Tattenhall, United KingdomHQ checked Sep 5, 2026	11-50	7 contacts →
	Indirect evidence “Streamline customer engagements, globally, at scale.” Source: RevenueBase Database · checked Sep 5, 2026
17	Voice Simplified	Indirect evidence	Westbury, United KingdomHQ checked Sep 5, 2026	11-50	5 contacts →
	Indirect evidence “At Voice Simplified we believe that all businesses, large and small, should be able to communicate without the need for prohibitive and expensive licensing or infrastructure.” Source: RevenueBase Database · checked Sep 5, 2026
18	Tappter	Strong evidence	Milton Keynes, United KingdomHQ checked Sep 5, 2026	1-10	5 contacts →
	Strong evidence “Tappter is a super simple messaging platform that guarantees convenient and compliant communication is only a 'tap' away.” Source: RevenueBase Database · checked Sep 5, 2026
19	Imail Comms	Indirect evidence	Coventry, United KingdomHQ checked Sep 5, 2026	11-50	5 contacts →
	Indirect evidence “Our Communications Tools provide your business with a range of cloud, API and desktop-based services that will improve your communication channel strategies.” Source: RevenueBase Database · checked Sep 5, 2026
20	Dotdigital For Tech Teams	Indirect evidence	Cheltenham, United KingdomHQ checked Sep 5, 2026	201-500	4 contacts →
	Indirect evidence “The modern consumer is omnichannel – they don't want old-fashioned, 1-way communication with brands, they expect 2-way, contextual conversations, on any channel of their choosing.” Source: RevenueBase Database · checked Sep 5, 2026
21	Voodoo SMS	Strong evidence	Huddersfield, United KingdomHQ checked Sep 5, 2026	201-500	4 contacts →
	Strong evidence “VOODOO is a powerful, easy to use mobile messaging platform built by end-users for end users.” Source: RevenueBase Database · checked Sep 5, 2026
22	Quicksms	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	4 contacts →
	Partial evidence “QuickSMS is a UK-based messaging provider trusted by government bodies and leading brands to deliver secure, scalable A2P SMS, RCS, and WhatsApp communications.” Source: RevenueBase Database · checked Sep 5, 2026
23	Everymessage	Indirect evidence	Slough, United KingdomHQ checked Sep 5, 2026	1-10	3 contacts →
	Indirect evidence “Create exceptional customer journeys simply and at scale.” Source: RevenueBase Database · checked Sep 5, 2026
24	Chit Chat AI	Partial evidence	Leeds, United KingdomHQ checked Sep 5, 2026	1-10	2 contacts →
	Partial evidence “We help smart brands transform their social messaging channels into powerful marketing and customer support tools.” Source: RevenueBase Database · checked Sep 5, 2026
25	Hipcall	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	1-10	2 contacts →
	Indirect evidence “All in one communication solution for companies.” Source: RevenueBase Database · checked Sep 5, 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: messaging platform companies. 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 messaging platform companies.
Partial evidence: Its own public description names part of messaging platform companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name messaging platform companies. 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 59 messaging platform companies based in the United Kingdom

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Messaging platform companies based in the United Kingdom at a glance

As of Sep 5, 2026

61.2%Verified-email coverage

4.4%Mobile-number coverage

64.1Average contacts per company

11-50Median size (employees)

54.2%Largest-city concentration · London

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

2,1350–30

14531–60

561–90

490–180

25180+

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 messaging platform companies, 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 “messaging platform companies”. 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 messaging platform companies), 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 messaging platform companies, 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, 2,314 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 5, 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.

Messaging platform companies by metro

Messaging platform companies in London32

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 messaging platform companies, 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 messaging platform companies are there based in the United Kingdom?

RevenueBase identified 59 messaging platform companies 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?

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

Which city has the most messaging platform companies?

London leads with 32 headquartered companies, followed by Cheltenham (2) and Coventry (2).

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 2,314 verified decision-maker contacts tracked across these 59 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 5, 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.