Company lists · Data refreshed September 2026

Top 25 Digital media agencies based in the United Kingdom

RevenueBase identified 4,856 digital media agencies headquartered in the United Kingdom as of September 2026 and tracks 38,511 professional contacts across them, including 8,980 with verified work emails and 3,185 with mobile numbers. London is the largest hub.

This list covers digital media 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review
4,856Companies
38,511Contacts tracked
8,980Verified emails
3,185Mobile numbers
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest digital media agencies based in the United Kingdom

Ranked by team size
Top 25 of 4,856 digital media agencies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to digital media agencies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceLondon, United Kingdom5,001-10,0002,395 contacts →

Strong evidence

“iProspect, a dentsu company, is a leading global digital-first media agency.”

Source: RevenueBase Database · checked Sep 1, 2026
2Partial evidenceLondon, United Kingdom5,001-10,0002,229 contacts →

Partial evidence

“Carat is the world’s first media agency and is privileged to work with some of today’s most storied and innovative brands.”

Source: RevenueBase Database · checked Sep 1, 2026
3Indirect evidenceLondon, United Kingdom1,001-5,000862 contacts →

Indirect evidence

“Neil Patel has been recognized by the Wall Street Journal, Forbes, and the United Nations, to name a few, as one of the most influential and successful marketers and entrepreneurs…”

Source: RevenueBase Database · checked Sep 1, 2026
4Partial evidenceLondon, United Kingdom1,001-5,000586 contacts →

Partial evidence

“LS Digital helps brands grow and thrive in a digital-first world.”

Source: RevenueBase Database · checked Sep 1, 2026
5Partial evidenceLondon, United Kingdom201-500553 contacts →

Partial evidence

“MG OMD, part of Omnicom Media, brings innovation, insight and creativity to the world of media.”

Source: RevenueBase Database · checked Sep 1, 2026
6Partial evidenceLeeds, United Kingdom501-1,000416 contacts →

Partial evidence

“EssenceMediacom is WPP Media's newest and largest agency, committed to delivering breakthroughs for brands in the New Communications Economy.”

Source: RevenueBase Database · checked Sep 1, 2026
7Partial evidenceLondon, United Kingdom201-500296 contacts →

Partial evidence

“the7stars is the UK’s largest independent media agency, offering the best people, the best service and the best creative media campaigns.”

Source: RevenueBase Database · checked Sep 1, 2026
8Strong evidenceLondon, United Kingdom51-200296 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 1, 2026
9Partial evidenceLondon, United Kingdom51-200194 contacts →

Partial evidence

“Medialab is the UK’s leading independent media agency, Campaign's 2025 & 2024 Independent Media Agency of the Year and Media Week's Independent Media Agency of the Year 2025…”

Source: RevenueBase Database · checked Sep 1, 2026
10Indirect evidenceLondon, United Kingdom5,001-10,000136 contacts →

Indirect evidence

“Zenith is the ROI Agency.”

Source: RevenueBase Database · checked Sep 1, 2026
11Indirect evidenceLondon, United Kingdom201-500133 contacts →

Indirect evidence

“Welcome to Zenith – the ROI agency.”

Source: RevenueBase Database · checked Sep 1, 2026
12Partial evidenceLondon, United Kingdom51-200110 contacts →

Partial evidence

“Battenhall is an award-winning communications agency for the social media age.”

Source: RevenueBase Database · checked Sep 1, 2026
13Indirect evidenceLondon, United Kingdom51-20094 contacts →

Indirect evidence

“DCMN is the agency for Total Video Brandformance: One video strategy to scale your brand across every screen.”

Source: RevenueBase Database · checked Sep 1, 2026
14Indirect evidenceLondon, United Kingdom501-1,00085 contacts →

Indirect evidence

“Head to Indicia Worldwide for our exciting new profile, packed with great content.”

Source: RevenueBase Database · checked Sep 1, 2026
15Indirect evidenceBirmingham, United Kingdom51-20081 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 1, 2026
16Indirect evidenceLeeds, United Kingdom201-50078 contacts →

Indirect evidence

“Search Marketing | Content | Strategy Delivered by passionate people.”

Source: RevenueBase Database · checked Sep 1, 2026
17Partial evidenceUnited Kingdom5,001-10,00074 contacts →

Partial evidence

“S4Capital plc is the tech-led, new age/new era digital advertising and marketing services company, established by Sir Martin Sorrell in May 2018.”

Source: RevenueBase Database · checked Sep 1, 2026
18Indirect evidenceMeriden, United Kingdom51-20068 contacts →

Indirect evidence

“An independent, creative-first agency full of people who dare to care.”

Source: RevenueBase Database · checked Sep 1, 2026
19Indirect evidenceLondon, United Kingdom1,001-5,00068 contacts →

Indirect evidence

“Unreasonable Studios delivers a full spectrum of creative capabilities – from original and branded entertainment to live-action commercials, editorial photography, full-funnel…”

Source: RevenueBase Database · checked Sep 1, 2026
20Partial evidenceLeeds, United Kingdom51-20068 contacts →

Partial evidence

“We’re Engage, the digital agency for those that demand attention.”

Source: RevenueBase Database · checked Sep 1, 2026
21Partial evidenceLondon, United Kingdom51-20065 contacts →

Partial evidence

“Powerful digital experiences for progressive connected brands.”

Source: RevenueBase Database · checked Sep 1, 2026
22Partial evidenceLondon, United Kingdom51-20065 contacts →

Partial evidence

“We are a media production agency based in Soho, est 1972.”

Source: RevenueBase Database · checked Sep 1, 2026
23Partial evidenceCardiff South, United Kingdom51-20062 contacts →

Partial evidence

“We bring strategy to life across media, creative, video, events and partnerships.”

Source: RevenueBase Database · checked Sep 1, 2026
24Partial evidenceLondon, United Kingdom51-20056 contacts →

Partial evidence

“WCRS is a creative agency where classical brand building meets cutting edge digital thinking.”

Source: RevenueBase Database · checked Sep 1, 2026
25Indirect evidenceNeedham Market, United Kingdom51-20055 contacts →

Indirect evidence

“At Unity Online, we exist to help businesses of all shapes and sizes achieve real success online.”

Source: RevenueBase Database · checked Sep 1, 2026

Showing 25 of 4,856 digital media agencies based in the United Kingdom

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Digital media agencies based in the United Kingdom at a glance

As of Sep 1, 2026
23.3%Verified-email coverage
8.3%Mobile-number coverage
7.9Average contacts per company
1-10Median size (employees)
34.0%Largest-city concentration · London
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
3,732
11-50
928
51-200
132
201-500
18
501-1,000
9
1,001-5,000
6
5,001-10,000
6

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among digital media agencies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “digital media agencies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names digital media agencies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among digital media agencies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 8,980 across the full list. 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 September 1, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names digital media agencies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many digital media agencies are there based in the United Kingdom?

RevenueBase identified 4,856 digital media agencies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Iprospect, headquartered in London, tops this list with the largest team on record.

Which city has the most digital media agencies?

London leads with 1653 headquartered companies, followed by Manchester (218) and Birmingham (120).

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 8,980 verified decision-maker contacts tracked across these 4,856 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 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 Smart Search, 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.