Company lists · Data verified August 2026

Top 25 Advertising agencies with in-house production based in the United Kingdom

Name: Advertising agencies with in-house production 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 8,783 companies tracked

There are 8,783 advertising agencies with in-house production headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 67,288 professional contacts across them, including 18,221 with verified work emails and 6,447 with mobile numbers. London is the largest hub.

This list covers advertising agencies with in-house production 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.

8,783Companies

67,288Contacts tracked

18,221Verified emails

6,447Mobile numbers

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The 25 largest advertising agencies with in-house production based in the United Kingdom

Ranked by team size

Top 25 of 8,783 advertising agencies with in-house production 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	APS Group	Leicester	501-1,000	1,157	477
3	Anomaly	London	501-1,000	765	426
4	Linney	Mansfield	1,001-5,000	651	450
5	The Mill	London	n/a	649	21
6	MG OMD	London	201-500	553	332
7	Mullenlowe Global	London	1,001-5,000	547	21
8	Anything IS Possible	And Hove	51-200	521	53
9	BBH London	London	201-500	518	204
10	Ogilvy UK	n/a	501-1,000	499	344
11	TMW	Bristol	201-500	442	163
12	DRPG	Windsor	201-500	341	215
13	The7stars	London	201-500	296	196
14	Newbase	London	501-1,000	282	28
15	Forsman & Bodenfors	London	201-500	257	179
16	Partizan	London	51-200	209	18
17	Animated Storyboards	London	201-500	197	51
18	Havas London	London	201-500	163	76
19	Grey London	London	201-500	158	69
20	UP There, Everywhere	n/a	51-200	154	68
21	Krow Group	Norwich	201-500	149	1
22	RSA Films	London	51-200	141	30
23	The Focus Agency Group	Manchester	51-200	132	94
24	Wonderhood Studios	London	51-200	107	79
25	Mesh Marketing	Leeds	51-200	105	85

Showing 25 of 8,783 advertising agencies with in-house production based in the United Kingdom

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Advertising agencies with in-house production based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 3130 HQs

6,447Contacts with mobile numbers

106Emails re-verified in last 30 days

Companies by employee count

1-10

6,972

11-50

1,477

51-200

195

201-500

501-1,000

1,001-5,000

5,001-10,000

Advertising agencies with in-house production by metro

Metro	Companies
Advertising agencies with in-house production in London	3130
Advertising agencies with in-house production in Manchester	290
Advertising agencies with in-house production in Birmingham	164
Advertising agencies with in-house production in Leeds	147
Advertising agencies with in-house production in Bristol	143
Advertising agencies with in-house production in Glasgow	111
Advertising agencies with in-house production in Edinburgh	92

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 “advertising agencies with in-house production”, 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; 106 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 advertising agencies with in-house production are there based in the United Kingdom?

There are 8,783 advertising agencies with in-house production 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 advertising agencies with in-house production?

London leads with 3130 headquartered companies, followed by Manchester (290) and Birmingham (164).

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 18,221 verified decision-maker contacts tracked across these 8,783 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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Related lists

Advertising agencies with in-house production by geography

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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.