Company lists · Data refreshed September 2026

Top 25 Live chat and engagement software developers based in London, United Kingdom

Name: Live chat and engagement software 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 97 companies tracked

RevenueBase identified 97 live chat and engagement software developers headquartered in London, United Kingdom as of September 2026 and tracks 3,178 professional contacts across them, including 657 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers live chat and engagement software 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

97Companies

3,178Contacts tracked

657Verified emails

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The 25 largest live chat and engagement software developers based in London, United Kingdom

Ranked by team size

Top 25 of 97 live chat and engagement software 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 live chat and engagement software 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	Imimobile Part Of Webex	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	433 contacts →
	Indirect evidence “We've moved!” Source: RevenueBase Database · checked Sep 28, 2026
3	Commversion	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	131 contacts →
	Indirect evidence “CommVersion helps marketing teams turn website traffic into qualified leads.” Source: RevenueBase Database · checked Sep 28, 2026
4	Venpep Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	94 contacts →
	Partial 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
5	IOVOX	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	35 contacts →
	Partial evidence “The iovox AI platform unlocks the potential of every customer conversation, from calls and texts to chats.” Source: RevenueBase Database · checked Sep 28, 2026
6	Quickblox	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
7	rocketphone.ai	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	30 contacts →
	Indirect evidence “RocketPhone.ai empowers organisations to unlock the full potential of their customer conversations by transforming them into actionable insights.” Source: RevenueBase Database · checked Sep 28, 2026
8	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
9	Resolvable	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	28 contacts →
	Partial evidence “Our customer service outsourcing and software solutions create happier customers, happier customer service agents, and save you money.” Source: RevenueBase Database · checked Sep 28, 2026
10	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
11	Bluetweak	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “BlueTweak is an AI-powered omnichannel customer support platform that brings every conversation-voice, email, chat, and social-into one interaction timeline.” Source: RevenueBase Database · checked Sep 28, 2026
12	Cagan Tech Limited	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “We are passionate about your customer and the experience they have with your brand.” Source: RevenueBase Database · checked Sep 28, 2026
13	Parla Retail	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	12 contacts →
	Strong evidence “Parla Retail's 1-to-1 Live Commerce software redefines how retailers engage with online customers by offering their in-store experience online.” Source: RevenueBase Database · checked Sep 28, 2026
14	Octocom	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	10 contacts →
	Indirect evidence “Octocom is an AI customer support platform for e-commerce stores, automating customer support for routine tasks and freeing your team to handle only exceptional cases.” Source: RevenueBase Database · checked Sep 28, 2026
15	ALANA	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “Alana transforms customer service by delivering intuitive, human-like interactions that enhance satisfaction and drive business results.” Source: RevenueBase Database · checked Sep 28, 2026
16	AMITY	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	10 contacts →
	Indirect evidence “Amity is the secret to making any app memorable.” Source: RevenueBase Database · checked Sep 28, 2026
17	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
18	Watchers Your Platform S Intelligent Social Layer	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Strong evidence “Watchers provides integrated community-building tools for your platform: text chats, live streaming, engagement widgets, and advanced AI moderation.” Source: RevenueBase Database · checked Sep 28, 2026
19	Kasookoo	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “Kasookoo is a dynamic cloud-native platform that is redefining business communication.” Source: RevenueBase Database · checked Sep 28, 2026
20	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
21	Voxly Digital	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “Voxly helps global brands scale their digital capabilities in Advertising, Commerce, and Customer Support with AI.” Source: RevenueBase Database · checked Sep 28, 2026
22	Contribly	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	5 contacts →
	Partial evidence “Contribly is a tech company that offers a suite of SaaS crowd engagement solutions to help companies enrich their content, connect with their audience and gather valuable data.” Source: RevenueBase Database · checked Sep 28, 2026
23	Ebotify	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	4 contacts →
	Strong 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
24	Everycatch	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “At EveryCatch, we revolutionise customer engagement and lead management for small businesses.” Source: RevenueBase Database · checked Sep 28, 2026
25	Superlayer	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	3 contacts →
	Indirect evidence “Superlayer uses AI and automation to capture and extract insights from customer interactions, streamlining the sales process and helping revenue teams win more.” 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: live chat and engagement software 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 live chat and engagement software developers.
Partial evidence: Its own public description names part of live chat and engagement software developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name live chat and engagement software 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 97 live chat and engagement software developers based in London, United Kingdom

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Live chat and engagement software developers based in London, United Kingdom at a glance

As of Sep 28, 2026

20.7%Verified-email coverage

32.8Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 97 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 live chat and engagement software 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 “live chat and engagement software 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 live chat and engagement software 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 live chat and engagement software 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, 657 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 live chat and engagement software 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 live chat and engagement software developers are there based in London, United Kingdom?

RevenueBase identified 97 live chat and engagement software 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 live chat and engagement software developers?

London leads the United Kingdom with 97 headquartered companies, followed by Manchester (9) and Glasgow (3).

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 657 verified decision-maker contacts tracked across these 97 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.