Company lists · Data refreshed September 2026

Top 25 Email marketing automation companies based in the United Kingdom

There are 309 email marketing automation companies headquartered in the United Kingdom (RevenueBase, September 2026). RevenueBase tracks 12,442 professional contacts across them, including 2,209 with verified work emails and 2,666 with mobile numbers. London is the largest hub.

This list covers email marketing automation 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, how directly it supports the match, and when it was last checked. Data refreshed September 1, 2026.

309Companies
12,442Contacts tracked
2,209Verified emails
2,666Mobile numbers
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The 25 largest email marketing automation companies based in the United Kingdom

Ranked by team size
Top 25 of 309 email marketing automation companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 1, 2026. Evidence rates how directly each company's own description names email marketing automation companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContactsVerified emails
1
BRAZEIndirect evidence

“Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging.™ Braze allows any marketer to collect and take action on any amount of data from…”

Source: company website · checked Sep 1, 2026
London, United Kingdom1,001-5,0002,1331,457
2
OmnisendIndirect evidence

“Let’s be real.”

Source: company website · checked Sep 1, 2026
Global, United Kingdom201-500270141
3
Act-On SoftwareStrong evidence

“Act-On Software provides the innovative marketing automation platform for marketers who think big and act boldly.”

Source: company website · checked Sep 1, 2026
Reading, United Kingdom201-50020966
4
EmailclubIndirect evidence

“At EmailClub, we are building the strongest CRM team on the market.”

Source: company website · checked Sep 1, 2026
London, United Kingdom51-20010339
5
Underground EcomStrong evidence

“Underground Ecom is a rapidly growing Email marketing agency specialising in helping ecommerce businesses reach their full potential through retention marketing.”

Source: company website · checked Sep 1, 2026
London, United Kingdom51-20010321
6
Spotler UKIndirect evidence

“We are Spotler!”

Source: company website · checked Sep 1, 2026
Guildford, United Kingdom51-2008418
7
ExacttargetPartial evidence

“ExactTarget is now the Salesforce Marketing Cloud - Visit them here: http://sforce.co/2nnCQU7 The Salesforce Marketing Cloud is the world’s most powerful digital marketing 1:1…”

Source: company website · checked Sep 1, 2026
London, United Kingdom1,001-5,0008347
8
1973 LTDStrong evidence

“Founded in 2004, 1973 Ltd is an experienced, proven marketing agency who specialise in email and automation.”

Source: company website · checked Sep 1, 2026
Chalgrove, United Kingdom11-50725
9
Force24Indirect evidence

“For customer buying cycles that last months, not minutes, choose Force24.”

Source: company website · checked Sep 1, 2026
Leeds, United Kingdom51-2006144
10
NetmeraIndirect evidence

“Netmera unifies customer data and AI-powered omnichannel engagement in a single platform.”

Source: company website · checked Sep 1, 2026
United Kingdom51-2005735
11
EloquaStrong evidence

“Eloqua, a wholly-owned subsidiary of Oracle, is the leading provider of modern marketing automation and revenue performance management software that helps ensure every component…”

Source: company website · checked Sep 1, 2026
London, United Kingdom1,001-5,000368
12
StoneshotPartial evidence

“StoneShot is a digital marketing technology and services provider specializing in financial services.”

Source: company website · checked Sep 1, 2026
London, United Kingdom51-2003520
13
MoosendPartial evidence

“Deliver the perfect email straight to your audience's inbox and grow a thriving customer base with Moosend.”

Source: company website · checked Sep 1, 2026
London, United Kingdom11-503217
14
MailercloudPartial 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: company website · checked Sep 1, 2026
London, United Kingdom11-503012
15
KlicktippStrong evidence

“KlickTipp offers innovative email marketing and marketing automation services and it is the first learning email marketing solution with unique tagging system.”

Source: company website · checked Sep 1, 2026
London, United Kingdom11-50296
16
ForfrontIndirect evidence

“Since 1998 Forfront has provided outstanding and comprehensive digital solutions.”

Source: company website · checked Sep 1, 2026
Epsom, United Kingdom11-502615
17
AuraseedIndirect evidence

“At AuraSeed, we know the frustrations many founders have with agencies: overpromising, underdelivering, and leaving you wondering if you’re just funding their payroll.”

Source: company website · checked Sep 1, 2026
Brighton, United Kingdom11-501810
18
Dotdigital Group PLCStrong evidence

“Dotdigital Group plc is a leading provider of cross-channel marketing automation technology to marketing professionals.”

Source: company website · checked Sep 1, 2026
Croydon, United Kingdom201-500181
19
Open House MediaStrong evidence

“OHM is a London-based email marketing agency.”

Source: company website · checked Sep 1, 2026
London, United Kingdom11-50168
20
CampaignerIndirect evidence

“Campaigner helps marketers unlock the power of their customer data to create personalized, 1:1 interactions that drive incremental revenue, engagement, and increased customer…”

Source: company website · checked Sep 1, 2026
North Shields, United Kingdom51-200166
21
MerrehillIndirect evidence

“Generating leads for businesses is what we do, and what we’ve been doing since 2005.”

Source: company website · checked Sep 1, 2026
Macclesfield, United Kingdom11-50139
22
JarrangStrong evidence

“Jarrang is a leading email marketing / CRM agency, renowned for creating and executing innovative email marketing strategies for global brands.”

Source: company website · checked Sep 1, 2026
London, United Kingdom11-50136
23
PostmanStrong evidence

“Founded with the vision of revolutionizing email marketing for e-commerce brands.”

Source: company website · checked Sep 1, 2026
London, United Kingdom11-50116
24
Evernue MediaPartial evidence

“Evernue is a lifecycle Email & SMS partner for eCommerce brands that want more than just regular campaigns.”

Source: company website · checked Sep 1, 2026
Uk, United Kingdom11-50114
25
Silk EmailStrong evidence

“We specialize in helping companies achieve a greater ROI on their email marketing and SMS by improving their strategy and optimizing their campaigns.”

Source: company website · checked Sep 1, 2026
Lostwithiel, United Kingdom11-50113

Showing 25 of 309 email marketing automation companies based in the United Kingdom

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Email marketing automation companies based in the United Kingdom at a glance

As of Sep 1, 2026
1-10Median size (employees)
LondonLargest hub · 145 HQs
2,666Contacts with mobile numbers
Sep 1, 2026Data refreshed

Companies by employee count

1-10
223
11-50
57
51-200
13
201-500
8
1,001-5,000
3

Email marketing automation companies by metro

MetroCompanies
Email marketing automation companies in London145
Email marketing automation companies in Manchester14
Email marketing automation companies in Birmingham5
Email marketing automation companies in Bristol4
Email marketing automation companies in Poole4
Email marketing automation companies in Reading4
Email marketing automation companies in Brighton4

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 email marketing automation companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “email marketing automation companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among email marketing automation 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 an evidence rating so you can judge each match yourself.
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, 2,209 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 1, 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

How many email marketing automation companies are there based in the United Kingdom?

There are 309 email marketing automation companies headquartered in the United Kingdom as of September 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 email marketing automation companies?

London leads with 145 headquartered companies, followed by Manchester (14) and Birmingham (5).

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 2,209 verified decision-maker contacts tracked across these 309 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 1, 2026.

Ready to reach these companies? Verified emails and direct dials for all 309 email marketing automation companies based in the United Kingdom. Start with a free account, no credit card.

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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.