Company lists · Data refreshed September 2026

Top 25 Cross-channel marketing platforms based in London, United Kingdom

Name: Cross-channel 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 27, 2026 81 companies tracked

RevenueBase identified 81 cross-channel marketing platforms headquartered in London, United Kingdom as of September 2026 and tracks 1,757 professional contacts across them, including 724 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers cross-channel 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 27, 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 27, 2026 86% judged on-target in blind review

81Companies

1,757Contacts tracked

724Verified emails

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The 25 largest cross-channel marketing platforms based in London, United Kingdom

Ranked by team size

Top 25 of 81 cross-channel marketing platforms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to cross-channel 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 27, 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 27, 2026
2	Upstream	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	336 contacts →
	Indirect evidence “We are a leader in mobile technology, providing innovative solutions to 1.2 billion consumers.” Source: RevenueBase Database · checked Sep 27, 2026
3	Actito Previously Smartfocus	Indirect evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
4	Sembot	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	39 contacts →
	Indirect evidence “Focus on strategy, not manually time-consuming tasks.” Source: RevenueBase Database · checked Sep 27, 2026
5	io.tt	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	32 contacts →
	Partial evidence “io.tt is a Connected Experiences Platform used by brands to deliver connected experience programmes across trillions of brand touchpoints globally.” Source: RevenueBase Database · checked Sep 27, 2026
6	Mailercloud	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	30 contacts →
	Indirect evidence “Since 2013, mailercloud has expanded to become one of the largest and most extensive cloud-based email services, that resolves the task of reliably delivering emails on behalf of…” Source: RevenueBase Database · checked Sep 27, 2026
7	Klicktipp	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	29 contacts →
	Partial evidence “KlickTipp offers innovative email marketing and marketing automation services and it is the first learning email marketing solution with unique tagging system.” Source: RevenueBase Database · checked Sep 27, 2026
8	Lone Design Club	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	1-10	29 contacts →
	Strong evidence “LDC is an omni channel route to market and intelligence platform for the most sustainable and cutting edge fashion and lifestyle brands.” Source: RevenueBase Database · checked Sep 27, 2026
9	Zzgtech	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	18 contacts →
	Partial evidence “ZZGTech builds secure and scalable infrastructure for modern marketing and customer communication.” Source: RevenueBase Database · checked Sep 27, 2026
10	Dotdigital Group PLC	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	18 contacts →
	Strong evidence “Dotdigital Group plc is a leading provider of cross-channel marketing automation technology to marketing professionals.” Source: RevenueBase Database · checked Sep 27, 2026
11	SYNKD	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	17 contacts →
	Partial evidence “Synkd is a unique mobile marketing ecosystem offering an evolving suite of solutions from premium publisher ad serving, creative development, application creation, as well as…” Source: RevenueBase Database · checked Sep 27, 2026
12	Marketing Town	Indirect evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
13	Unifida	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	1-10	8 contacts →
	Partial evidence “Welcome to UniFida, where we specialise in transforming your marketing strategies with cutting-edge data science and pioneering marketing technology.” Source: RevenueBase Database · checked Sep 27, 2026
14	Lumendash	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	8 contacts →
	Strong evidence “Unified marketing campaigns and dashboards See your entire growth story in one place-no more logging into 6 different platforms - create and visualise all your platforms in one.” Source: RevenueBase Database · checked Sep 27, 2026
15	Salesseek	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	7 contacts →
	Partial evidence “SalesSeek.com aligns your Sales and Marketing process by connecting the most important parts of your business.” Source: RevenueBase Database · checked Sep 27, 2026
16	It's Personal Retention For DTC Brands	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	1-10	7 contacts →
	Partial evidence “Does your Email Marketing bring you 30-60% of revenue?” Source: RevenueBase Database · checked Sep 27, 2026
17	Adbrain	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	5 contacts →
	Strong 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 27, 2026
18	ACUTO	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	1-10	5 contacts →
	Partial evidence “We empower digital marketing agencies with cutting-edge data and automation solutions, helping them work smarter, not harder.” Source: RevenueBase Database · checked Sep 27, 2026
19	Fixate	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	1-10	3 contacts →
	Strong evidence “Fixate leverages direct marketing channels (email, SMS, and push) to transform your business trajectory.” Source: RevenueBase Database · checked Sep 27, 2026
20	Rolling Star	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	1-10	3 contacts →
	Partial evidence “We are a specialist in Email Marketing, SMS Marketing (Mobile Marketing) and Database Management solutions.” Source: RevenueBase Database · checked Sep 27, 2026
21	Salesgrape	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	2 contacts →
	Strong evidence “We employ a multi-channel approach to reach out to potential customers across various platforms such as social media networks, search engines, email campaigns, content marketing…” Source: RevenueBase Database · checked Sep 27, 2026
22	Clearreports	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	2 contacts →
	Strong evidence “The ClearReports difference is simplicity: a single platform to manage all your online marketing activity across multiple channels, countries and currencies.+ Campaign Dashboard +…” Source: RevenueBase Database · checked Sep 27, 2026
23	Magicals	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	1-10	2 contacts →
	Partial evidence “We've reimagined email marketing, distilling years of agency expertise into software.” Source: RevenueBase Database · checked Sep 27, 2026
24	Gratas Solutions UK	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	1-10	2 contacts →
	Partial evidence “Gratas Solutions UK stands as a leading provider of tailored solutions, serving clients across the UK and EU with a specialized focus on cutting-edge Digital Marketing solutions…” Source: RevenueBase Database · checked Sep 27, 2026
25	Upsoft Software Development	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	1 contacts →
	Strong evidence “Joined up software Start a business, launch a brand, test an idea, send and track multi-channel marketing campaigns.” Source: RevenueBase Database · checked Sep 27, 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: cross-channel 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 cross-channel marketing platforms.
Partial evidence: Its own public description names part of cross-channel marketing platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cross-channel 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 81 cross-channel marketing platforms based in London, United Kingdom

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Cross-channel marketing platforms based in London, United Kingdom at a glance

As of Sep 27, 2026

41.2%Verified-email coverage

21.7Average contacts per company

1-10Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 81 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 cross-channel 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 “cross-channel 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 cross-channel 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 cross-channel 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, 724 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 27, 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 cross-channel 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 cross-channel marketing platforms are there based in London, United Kingdom?

RevenueBase identified 81 cross-channel 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 cross-channel marketing platforms?

London leads the United Kingdom with 81 headquartered companies, followed by Manchester (7) and Poole (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 724 verified decision-maker contacts tracked across these 81 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 27, 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.