Company lists · Data refreshed October 2026

Top 25 Integrated digital marketing agencies based in London, United Kingdom

Name: Integrated digital marketing agencies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 4,312 companies tracked

RevenueBase identified 4,312 company matches for integrated digital marketing agencies associated with London, United Kingdom as of October 2026 and tracks 66,699 professional contacts across them, including 9,974 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for integrated digital marketing agencies associated with London, United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built

4,312Companies

66,699Contacts tracked

9,974Verified emails

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The 25 largest integrated digital marketing agencies based in London, United Kingdom

Ranked by team size

Top 25 of 4,312 company matches for integrated digital marketing agencies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Publicis Media	Exact match	London, United KingdomHQ recorded Oct 1, 2026	10001+	6,901 contacts →
	Exact match “Publicis Media harnesses the power of modern media through leading agency brands Dysrupt, Infinite Roar, Publicis Collective, Publicis Health Media, Spark Foundry, Starcom and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Iprospect	Exact match	London, United KingdomHQ recorded Oct 1, 2026	5,001-10,000	2,366 contacts →
	Exact match “iProspect, a dentsu company, is a leading global digital-first media agency.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Jellyfish	Exact match	London, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	2,119 contacts →
	Exact match “Jellyfish \| Move Faster.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Dentsu X	Exact match	London, United KingdomHQ recorded Oct 1, 2026	5,001-10,000	941 contacts →
	Exact match “Welcome to dentsu X.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	T&p	Exact match	London, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	925 contacts →
	Exact match “A global, fully integrated agency with AI at its heart.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Digitas UK	Exact match	London, United KingdomHQ recorded Oct 1, 2026	501-1,000	709 contacts →
	Exact match “We are Digitas.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	CROUD	Exact match	London, United KingdomHQ recorded Oct 1, 2026	501-1,000	643 contacts →
	Exact match “We're an independent global media, creative, and data agency helping our clients make their next best move.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	M C Saatchi Performance	Exact match	London, United KingdomHQ recorded Oct 1, 2026	201-500	457 contacts →
	Exact match “We are a Global digital media agency specializing in taking a human approach to connecting brands with people across all channels.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	TMW	Exact match	London, United KingdomHQ recorded Oct 1, 2026	201-500	439 contacts →
	Exact match “TMW, part of Accenture Song, is an integrated creative agency.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Essencemediacom UK	Exact match	London, United KingdomHQ recorded Oct 1, 2026	501-1,000	416 contacts →
	Exact match “EssenceMediacom is WPP Media's newest and largest agency, committed to delivering breakthroughs for brands in the New Communications Economy.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	MVF	Exact match	London, United KingdomHQ recorded Oct 1, 2026	201-500	401 contacts →
	Exact match “MVF powers growth for our clients by connecting them to potential customers.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	DMS	Exact match	London, United KingdomHQ recorded Oct 1, 2026	51-200	299 contacts →
	Exact match “WE ARE A GLOBAL CREATIVE DIGITAL AGENCY At DMS, we bring together a powerhouse of creative, media intelligence and digital disciplines under one roof to support world-class…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Four Agency Worldwide	Exact match	London, United KingdomHQ recorded Oct 1, 2026	201-500	292 contacts →
	Exact match “Four is one of the leading independent integrated communications agencies in the UK and the Middle East.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Team Internet	Exact match	London, United KingdomHQ recorded Oct 1, 2026	501-1,000	279 contacts →
	Exact match “Team Internet Group PLC (AIM: TIG, OTCQX: TIGXF) is a leading internet solutions provider transforming the way businesses, brands, publishers and consumers connect online.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Greenpark	Exact match	London, United KingdomHQ recorded Oct 1, 2026	201-500	269 contacts →
	Exact match “Greenpark is a global, award-winning digital agency.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Brave Bison	Exact match	London, United KingdomHQ recorded Oct 1, 2026	201-500	210 contacts →
	Exact match “A world where complexity is the only constant demands a new breed of company.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Kinesso Uk&i	Exact match	London, United KingdomHQ recorded Oct 1, 2026	501-1,000	194 contacts →
	Exact match “KINESSO UK is the award-winning, tech-driven performance marketing agency delivering actionable growth for direct clients and agency partners.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	BIG Group	Exact match	London, United KingdomHQ recorded Oct 1, 2026	51-200	177 contacts →
	Exact match “Founded in 1991, with offices in Amsterdam, Bath, Dubai and London our award-winning employee-owned company has consistently ranked as one of the UK's leading independent digital…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	COOLR	Exact match	London, United KingdomHQ recorded Oct 1, 2026	51-200	176 contacts →
	Exact match “Coolr is an award-winning social media and influencer marketing agency, with offices in London.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Investis Digital	Exact match	London, United KingdomHQ recorded Oct 1, 2026	501-1,000	158 contacts →
	Exact match “IDX (formerly Investis Digital) specializes in elevating companies and brands and maximizing technology to build strong, relatable, and authentic connections with their audiences.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Krow Group	Exact match	London, United KingdomHQ recorded Oct 1, 2026	201-500	150 contacts →
	Exact match “At krow Group, our ideas are designed to make a genuine difference, building your brand and making it easier to buy by capturing and converting people’s attention.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	MMT	Exact match	London, United KingdomHQ recorded Oct 1, 2026	201-500	147 contacts →
	Exact match “We are digital leaders shaping tomorrow’s customer experiences to unlock innovation and growth for ambitious brands.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	METIA	Exact match	London, United KingdomHQ recorded Oct 1, 2026	201-500	132 contacts →
	Exact match “Metia is a global marketing agency with offices in London, Seattle, Austin and Singapore.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	MSQ	Exact match	London, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	117 contacts →
	Exact match “We’re MSQ.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	E Intelligence	Exact match	London, United KingdomHQ recorded Oct 1, 2026	51-200	117 contacts →
	Exact match “e intelligence is a renowned global leader in the digital marketing space.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “integrated digital marketing agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 4,312 integrated digital marketing agencies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 9,974 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Integrated digital marketing agencies based in London, United Kingdom at a glance

As of Oct 1, 2026

15.0%Verified-email coverage

15.5Average contacts per company

1-10Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

2,911

11-50

1,096

51-200

218

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 4,312 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with London, United Kingdom whose business descriptions match “integrated digital marketing agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 9,974 professional contacts with verified work emails across the full matched dataset. 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 October 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Integrated digital marketing agencies by metro in the United Kingdom

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “integrated digital marketing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many integrated digital marketing agencies are there based in London, United Kingdom?

RevenueBase identified 4,312 company matches for integrated digital marketing agencies associated with London, United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Publicis Media tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most integrated digital marketing agencies?

London leads the United Kingdom with 4,312 company records, followed by Manchester (526) and Birmingham (319).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 9,974 professional contacts with verified work emails tracked across these 4,312 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.