Company lists · Data verified August 2026

Top 25 Email marketing software companies based in the United Kingdom

Name: Email marketing software companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 169 companies tracked

There are 169 email marketing software companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 9,481 professional contacts across them, including 525 with verified work emails and 1,796 with mobile numbers. London is the largest hub.

This list covers email marketing software 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. Data current as of August 28, 2026.

169Companies

9,481Contacts tracked

525Verified emails

1,796Mobile numbers

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The 25 largest email marketing software companies based in the United Kingdom

Ranked by team size

Top 25 of 169 email marketing software companies based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Omnisend	Global	201-500	270	141
2	Act-On Software	Reading	201-500	209	66
3	Emailclub	London	51-200	103	39
4	Spotler UK	Guildford	51-200	84	18
5	Exacttarget	London	1,001-5,000	83	47
6	1973 LTD	Chalgrove	11-50	72	5
7	Moosend	London	11-50	32	17
8	Mailercloud	London	11-50	30	12
9	Klicktipp	London	11-50	29	6
10	Open House Media	London	11-50	16	8
11	Campaigner	North Shields	51-200	16	6
12	TOP Marketing Media	Preston	1-10	16	1
13	Merrehill	Macclesfield	11-50	13	9
14	Emailoctopus	London	1-10	13	7
15	Jarrang	London	11-50	13	6
16	Silk Email	Lostwithiel	11-50	11	3
17	Picnic Group	Newcastle Upon Tyne	11-50	11	1
18	Marketing Town	London	51-200	9	1
19	Hive Marketing Cloud	Bristol	11-50	8	6
20	Mailxpertise	Ashford	11-50	8	6
21	Instiller	Birmingham	11-50	5	5
22	Glassjaw	London	11-50	5	3
23	Enchant Agency	London	11-50	4	4
24	Email Blaster UK	Burcote	11-50	4	3
25	Instant Marketing	Sheffield	1-10	4	3

Showing 25 of 169 email marketing software companies based in the United Kingdom

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

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 71 HQs

1,796Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

116

11-50

51-200

201-500

1,001-5,000

Email marketing software companies by metro

Metro	Companies
Email marketing software companies in London	71
Email marketing software companies in Manchester	9
Email marketing software companies in Bristol	3
Email marketing software companies in Poole	3
Email marketing software companies in Birmingham	2
Email marketing software companies in Cambridge	2
Email marketing software companies in Croydon	2
Email marketing software companies in Brighton And Hove	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “email marketing software companies”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

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

There are 169 email marketing software companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Omnisend, headquartered in Global, tops this list with the largest team on record.

Which city has the most email marketing software companies?

London leads with 71 headquartered companies, followed by Manchester (9) and Bristol (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 525 verified decision-maker contacts tracked across these 169 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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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.