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.
The 25 largest digital media agencies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,395 contacts → | ||||
Strong evidence “iProspect, a dentsu company, is a leading global digital-first media agency.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,229 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 862 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 586 contacts → | ||||
Partial evidence “LS Digital helps brands grow and thrive in a digital-first world.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 5 | 553 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 416 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 296 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 296 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 194 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 136 contacts → | ||||
Indirect evidence “Zenith is the ROI Agency.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 11 | 133 contacts → | ||||
Indirect evidence “Welcome to Zenith – the ROI agency.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 12 | 110 contacts → | ||||
Partial evidence “Battenhall is an award-winning communications agency for the social media age.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 13 | 94 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 85 contacts → | ||||
Indirect evidence “Head to Indicia Worldwide for our exciting new profile, packed with great content.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 15 | 81 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 16 | 78 contacts → | ||||
Indirect evidence “Search Marketing | Content | Strategy Delivered by passionate people.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 17 | 74 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, 2026Thanks. The Data Team will review it. | |||||
| 18 | 68 contacts → | ||||
Indirect evidence “An independent, creative-first agency full of people who dare to care.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 19 | 68 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, 2026Thanks. The Data Team will review it. | |||||
| 20 | 68 contacts → | ||||
Partial evidence “We’re Engage, the digital agency for those that demand attention.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 21 | 65 contacts → | ||||
Partial evidence “Powerful digital experiences for progressive connected brands.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 22 | 65 contacts → | ||||
Partial evidence “We are a media production agency based in Soho, est 1972.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 23 | 62 contacts → | ||||
Partial evidence “We bring strategy to life across media, creative, video, events and partnerships.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 24 | 56 contacts → | ||||
Partial evidence “WCRS is a creative agency where classical brand building meets cutting edge digital thinking.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 25 | 55 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, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: digital media agencies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names digital media agencies.
- Partial evidence
- Its own public description names part of digital media agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name digital media agencies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
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, 2026Companies by employee count
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.
Ready to reach these companies? Verified emails and direct dials for all 4,856 digital media agencies based in the United Kingdom. Start with a free account, no credit card.
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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.
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