Company lists · Data refreshed September 2026
Top 25 Paid advertising agencies based in the United Kingdom
RevenueBase identified 2,092 paid advertising agencies headquartered in the United Kingdom as of September 2026 and tracks 14,603 professional contacts across them, including 2,782 with verified work emails and 820 with mobile numbers. London is the largest hub.
This list covers paid 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. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.
The 25 largest paid advertising agencies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 178 | ||||
“All Response Media is the leading performance media planning and buying agency.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 83 | ||||
“Powered by our people, our campaigns put your audience first.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 82 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 75 | ||||
“One Agency: Creating, Delivering and Connecting brands.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 69 | ||||
“Unlock exceptional business growth with Mabo - an award-winning digital marketing agency specialist in paid search, social media, search engine optimisation (SEO) and Amazon…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 60 | ||||
“Sleeping Giant Media is an award-winning digital marketing agency providing digital marketing services for businesses that wish to grow online.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 55 | ||||
“Click Consult, an IQVIA business, is a multi award-winning digital and search marketing agency with a focus on organic (SEO) and paid search (PPC).” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 54 | ||||
“OCM is a leading adtech agency providing solutions to advertisers, advertising agencies and to web, mobile & video publishers.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 54 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 50 | ||||
“From our office in London & Leeds, we seamlessly plan and buy media across all channels: digital, TV, cinema, OOH, radio, print, social and search.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 48 | ||||
“We're a strategic digital marketing agency specialising in Paid Search, SEO, Google Shopping, Amazon and Social.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 48 | ||||
“Media Agency Group is an advertising agency specialising in the purchasing and planning of all media formats across the spectrum of advertising.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 48 | ||||
“TV ADVERTISING, TV COMMERCIALS, VIDEO & CONTENT PRODUCTION, ADVERTISING, SOCIAL MEDIA MARKETING AND BRAND CONSULTING FOR THE MOST AMBITIOUS BRANDS, BUSINESSES AND STARTUPS ON THE…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 47 | ||||
“Incredible PPC and SEO results are not the exclusive rights of those with deep pockets.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 45 | ||||
“Bambu is an online marketing and advertising agency based in London, working with startup and growth brands across the UK, Europe and North America, founded by two ex-WPP…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 44 | ||||
“We're Wolfenden, an independent performance marketing agency helping ambitious brands unlock sustainable growth through organic search, authority, digital PR, paid media, data and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | ClicktechIndirect evidence | 40 | |||
“Our mission is to make digital marketing accessible and more cost-effective for all businesses, regardless of size.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | Wagada Digital Hubspot PartnerIndirect evidence | 39 | |||
“In a world filled with information overload, we make the complex simple.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | KinaseIndirect evidence | 39 | |||
“Kinase is a leading Digital Marketing Agency providing services to some of the UK’s top companies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 38 | ||||
“equimedia is a UK based, independent digital marketing agency with performance at our core.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 38 | ||||
“Our platform helps performance marketers scale social, display and retail media campaigns.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 38 | ||||
“CNS Media is an independent, award-winning, full-service marketing agency, combining exceptional media buying power with digital and creative expertise.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 37 | ||||
“We are a UK-leading independent media agency that helps to partner your creativity with strategic media positioning.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 37 | ||||
“Mamba Marketing™ is a multi-award-winning performance marketing agency built for brands that expect measurable growth, not excuses.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | LaunchIndirect evidence | 36 | |||
“Launch empowers companies to grow with confidence through performance marketing.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 2,092 paid advertising agencies based in the United Kingdom
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Paid advertising agencies based in the United Kingdom at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 paid advertising agencies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “paid advertising agencies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among paid advertising 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 an evidence 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, 2,782 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 5, 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.
Paid advertising agencies by metro
Frequently asked
How many paid advertising agencies are there based in the United Kingdom?
RevenueBase identified 2,092 paid advertising 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?
ALL Response Media, headquartered in London, tops this list with the largest team on record.
Which city has the most paid advertising agencies?
London leads with 752 headquartered companies, followed by Manchester (106) and Birmingham (47).
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 2,782 verified decision-maker contacts tracked across these 2,092 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 5, 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.
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