Company lists · Data verified August 2026

Top 25 Activation marketing agencies based in the United Kingdom

Name: Activation marketing agencies 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 4,334 companies tracked

There are 4,334 activation marketing agencies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 60,915 professional contacts across them, including 16,279 with verified work emails and 5,862 with mobile numbers. London is the largest hub.

This list covers activation marketing agencies 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.

4,334Companies

60,915Contacts tracked

16,279Verified emails

5,862Mobile numbers

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The 25 largest activation marketing agencies based in the United Kingdom

Ranked by team size

Top 25 of 4,334 activation marketing agencies 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	SGK	Manchester	5,001-10,000	3,593	1,061
2	CARAT	London	5,001-10,000	2,229	697
3	MKTG	London	1,001-5,000	1,501	191
4	NP Digital	London	1,001-5,000	862	306
5	Wongdoody	London	1,001-5,000	846	472
6	IRIS	London	501-1,000	722	215
7	Linney	Mansfield	1,001-5,000	651	450
8	MVF	London	201-500	417	246
9	Blackjack Promotions	London	1,001-5,000	346	8
10	Newbase	London	501-1,000	282	28
11	Powerforce GB	Winnersh Triangle	1,001-5,000	231	89
12	Amplify	London	201-500	180	123
13	Retail Marketing Group RMG	Sindlesham Reading	201-500	167	26
14	Grey London	London	201-500	158	69
15	Avidity	Glasgow	1,001-5,000	152	40
16	Krow Group	Norwich	201-500	149	1
17	METIA	London	201-500	131	44
18	The Mission Group	London	1,001-5,000	114	70
19	Havas CX Helia	Cirencester	201-500	105	7
20	Storyland Studios	Amersham	201-500	93	66
21	Playnetwork	Penenden Heath	201-500	84	14
22	WAVE	Manchester	1,001-5,000	77	11
23	Sparks Emea	London	201-500	43	24
24	Performics UK	n/a	201-500	34	16
25	Institution	Doncaster	201-500	30	2

Showing 25 of 4,334 activation marketing agencies based in the United Kingdom

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Activation marketing agencies based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 1813 HQs

5,862Contacts with mobile numbers

115Emails re-verified in last 30 days

Companies by employee count

1-10

2,737

11-50

1,255

51-200

245

201-500

501-1,000

1,001-5,000

5,001-10,000

Activation marketing agencies by metro

Metro	Companies
Activation marketing agencies in London	1813
Activation marketing agencies in Manchester	196
Activation marketing agencies in Leeds	90
Activation marketing agencies in Birmingham	89
Activation marketing agencies in Bristol	58
Activation marketing agencies in Glasgow	50
Activation marketing agencies in Edinburgh	42

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 “activation marketing agencies”, 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; 115 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 activation marketing agencies are there based in the United Kingdom?

There are 4,334 activation marketing agencies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

SGK, headquartered in Manchester, tops this list with the largest team on record.

Which city has the most activation marketing agencies?

London leads with 1813 headquartered companies, followed by Manchester (196) and Leeds (90).

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 16,279 verified decision-maker contacts tracked across these 4,334 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.