Company lists · Data refreshed September 2026

Top 25 Retention marketing platforms based in London, United Kingdom

Name: Retention marketing platforms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 61 companies tracked

RevenueBase identified 61 retention marketing platforms headquartered in London, United Kingdom as of September 2026 and tracks 1,809 professional contacts across them, including 830 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers retention marketing platforms 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 29, 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 29, 2026 86% judged on-target in blind review

61Companies

1,809Contacts tracked

830Verified emails

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The 25 largest retention marketing platforms based in London, United Kingdom

Ranked by team size

Top 25 of 61 retention marketing platforms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to retention marketing platforms: 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	MAPP	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	373 contacts →
	Strong evidence “Mapp helps marketers build personalized customer experiences through our SaaS platform, Mapp Marketing Cloud.” Source: RevenueBase Database · checked Sep 29, 2026
2	Eagle EYE	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	241 contacts →
	Partial evidence “Eagle Eye is on a mission to power the personalized marketing revolution globally.” Source: RevenueBase Database · checked Sep 29, 2026
3	Underground Ecom	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	102 contacts →
	Strong evidence “Underground Ecom is a rapidly growing Email marketing agency specialising in helping ecommerce businesses reach their full potential through retention marketing.” Source: RevenueBase Database · checked Sep 29, 2026
4	Actito Previously Smartfocus	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	99 contacts →
	Indirect evidence “Marketers spend billions on attracting customers and yet more than 70% of first time interactions with a brand are also the last.” Source: RevenueBase Database · checked Sep 29, 2026
5	Engage HUB	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	49 contacts →
	Indirect evidence “Every customer is unique.” Source: RevenueBase Database · checked Sep 29, 2026
6	Moosend	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	30 contacts →
	Indirect evidence “Deliver the perfect email straight to your audience's inbox and grow a thriving customer base with Moosend.” Source: RevenueBase Database · checked Sep 29, 2026
7	Yieldify	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	27 contacts →
	Partial evidence “Yieldify is a personalization platform that helps marketers unlock more revenue by engaging their customers with personalized experiences.” Source: RevenueBase Database · checked Sep 29, 2026
8	Zzgtech	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	18 contacts →
	Partial evidence “ZZGTech builds secure and scalable infrastructure for modern marketing and customer communication.” Source: RevenueBase Database · checked Sep 29, 2026
9	Dotdigital Group PLC	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	18 contacts →
	Partial evidence “Dotdigital Group plc is a leading provider of cross-channel marketing automation technology to marketing professionals.” Source: RevenueBase Database · checked Sep 29, 2026
10	Loyalzoo	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	12 contacts →
	Strong evidence “Loyalzoo is a customer loyalty and retention platform built for independent retailers, hospitality businesses, and multi-location brands.” Source: RevenueBase Database · checked Sep 29, 2026
11	The Normal Company	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	12 contacts →
	Strong evidence “We generate on average 36X ROI through retention based marketing systems.(Yes, really) A team of retention based, email marketing experts, trusted by some of the worlds biggest…” Source: RevenueBase Database · checked Sep 29, 2026
12	Postman	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	11 contacts →
	Partial evidence “Founded with the vision of revolutionizing email marketing for e-commerce brands.” Source: RevenueBase Database · checked Sep 29, 2026
13	Elliotdigital Retention Marketing Agency	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	9 contacts →
	Indirect evidence “We build dynamic strategies that are creative, data-driven and customer centric, to reach new heights for our brand partners.” Source: RevenueBase Database · checked Sep 29, 2026
14	Enviary	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	9 contacts →
	Strong evidence “Retention-Focused Email & CRM Marketing Agency Enviary is a global growth agency specialising in email marketing, CRM automation, and customer retention.” Source: RevenueBase Database · checked Sep 29, 2026
15	Marketing Town	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	9 contacts →
	Indirect evidence “We are in the midst of a shift in business models, powered by the modern SaaS economy, developments in technology and digitalisation of consumer behaviour.” Source: RevenueBase Database · checked Sep 29, 2026
16	Own-Kind	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	8 contacts →
	Partial evidence “Own-Kind is a Customer Engagement platform for Retail & E-commerce.” Source: RevenueBase Database · checked Sep 29, 2026
17	Traffic Recovery System TRS	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	6 contacts →
	Indirect evidence “Traffic Recovery System (TRS) is a system that allows brands to profitably turn your website visitors into buyers and convert more of the traffic you are already driving to your…” Source: RevenueBase Database · checked Sep 29, 2026
18	Glassjaw	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	5 contacts →
	Partial evidence “We build data-driven CRM and marketing automation programs that connect with modern audiences.” Source: RevenueBase Database · checked Sep 29, 2026
19	RELO	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	5 contacts →
	Indirect evidence “Today’s DTC brands are battling with rising acquisition costs, subscription churn and unpersonalised CRMs.” Source: RevenueBase Database · checked Sep 29, 2026
20	Adbrain	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	5 contacts →
	Partial evidence “Adbrain powers marketers and their partners to understand and engage with their customers with a personalized, consistent message across devices, channels and platforms.” Source: RevenueBase Database · checked Sep 29, 2026
21	Abndon	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	4 contacts →
	Partial evidence “We help eCom brands add an extra $60k -$250k in monthly revenue in 90 days or less with Klaviyo email marketing.” Source: RevenueBase Database · checked Sep 29, 2026
22	Cartbooster	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “Most visitors leave without buying.” Source: RevenueBase Database · checked Sep 29, 2026
23	Fixate	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “Fixate leverages direct marketing channels (email, SMS, and push) to transform your business trajectory.” Source: RevenueBase Database · checked Sep 29, 2026
24	Oriel Ventures Limited	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	1 contacts →
	Strong evidence “Oriel is a customer engagement and retention platform designed to help online businesses stay connected with passing website visitors.” Source: RevenueBase Database · checked Sep 29, 2026
25	Right Click Retention	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	1 contacts →
	Indirect evidence “Helping eCommerce brands maximise their CLTV, adding $150k+ per month in additional revenue.” Source: RevenueBase Database · checked Sep 29, 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: retention marketing platforms. 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 retention marketing platforms.
Partial evidence: Its own public description names part of retention marketing platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name retention marketing platforms. 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 61 retention marketing platforms based in London, United Kingdom

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Retention marketing platforms based in London, United Kingdom at a glance

As of Sep 29, 2026

45.9%Verified-email coverage

29.7Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 61 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 retention marketing platforms, 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 “retention marketing platforms”. 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 retention marketing platforms), 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 retention marketing platforms, 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, 830 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 29, 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 retention marketing platforms, 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 retention marketing platforms are there based in London, United Kingdom?

RevenueBase identified 61 retention marketing platforms 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?

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

Which city in the United Kingdom has the most retention marketing platforms?

London leads the United Kingdom with 61 headquartered companies, followed by Belfast (4) and Manchester (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 830 verified decision-maker contacts tracked across these 61 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 29, 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.