Company lists · Data verified August 2026

Top 25 Creative advertising agencies based in the United Kingdom

Name: Creative advertising 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 17,423 companies tracked

There are 17,423 creative advertising agencies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 174,903 professional contacts across them, including 47,183 with verified work emails and 16,283 with mobile numbers. London is the largest hub.

This list covers creative advertising 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.

17,423Companies

174,903Contacts tracked

47,183Verified emails

16,283Mobile numbers

Unlock all 17,423 companies Free account · no credit card · 2 minutes

The 25 largest creative advertising agencies based in the United Kingdom

Ranked by team size

Top 25 of 17,423 creative advertising 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	Iprospect	London	5,001-10,000	2,395	743
3	Mother	London	501-1,000	2,364	40
4	CARAT	London	5,001-10,000	2,229	697
5	TMS	London	1,001-5,000	1,685	684
6	APS Group	Leicester	501-1,000	1,157	477
7	Omnicom Media Group UK	London	5,001-10,000	993	167
8	NP Digital	London	1,001-5,000	862	306
9	Wongdoody	London	1,001-5,000	846	472
10	Anomaly	London	501-1,000	765	426
11	Linney	Mansfield	1,001-5,000	651	450
12	LS Digital Group	London	1,001-5,000	586	224
13	Mullenlowe Global	London	1,001-5,000	547	21
14	Ogilvy UK	n/a	501-1,000	499	344
15	Essencemediacom UK	Leeds	501-1,000	416	258
16	M C Saatchi Group	London	1,001-5,000	365	176
17	Newbase	London	501-1,000	282	28
18	Jaywing	Leeds	501-1,000	233	103
19	Zenith	London	5,001-10,000	136	26
20	The Mission Group	London	1,001-5,000	114	70
21	MSQ	London	1,001-5,000	113	65
22	Essencemediacomx	London	501-1,000	107	54
23	BBH Global	London	501-1,000	99	5
24	Unlimited	London	501-1,000	87	16
25	Konica Minolta Marketing Services	London	501-1,000	85	1

Showing 25 of 17,423 creative advertising agencies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 47,183 reachable decision-makers.

Free account · no credit card

See all 17,423 companies

Creative advertising agencies based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 6597 HQs

16,283Contacts with mobile numbers

90Emails re-verified in last 30 days

Companies by employee count

1-10

12,910

11-50

3,675

51-200

563

201-500

501-1,000

1,001-5,000

5,001-10,000

Creative advertising agencies by metro

Metro	Companies
Creative advertising agencies in London	6597
Creative advertising agencies in Manchester	636
Creative advertising agencies in Leeds	344
Creative advertising agencies in Birmingham	332
Creative advertising agencies in Bristol	254
Creative advertising agencies in Glasgow	229
Creative advertising agencies in Edinburgh	190

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 “creative advertising 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; 90 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 creative advertising agencies are there based in the United Kingdom?

There are 17,423 creative advertising 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 creative advertising agencies?

London leads with 6597 headquartered companies, followed by Manchester (636) and Leeds (344).

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 47,183 verified decision-maker contacts tracked across these 17,423 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.

Ready to reach these companies? Verified emails and direct dials for all 17,423 creative advertising agencies based in the United Kingdom. Start with a free account, no credit card.

Get the full list

Related lists

Creative advertising agencies by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Creative advertising agencies lists · New lists

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.