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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
2,092Companies
14,603Contacts tracked
2,782Verified emails
820Mobile numbers
Unlock all 2,092 companies Free signup · no credit card · 500 free credits

The 25 largest paid advertising agencies based in the United Kingdom

Ranked by team size
Top 25 of 2,092 paid advertising agencies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names paid advertising agencies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
ALL Response MediaIndirect evidence
London, United KingdomHQ checked Sep 5, 202651-200178

“All Response Media is the leading performance media planning and buying agency.”

Source: company website · checked Sep 5, 2026
2
The Media PeopleIndirect evidence
London, United KingdomHQ checked Sep 5, 202611-5083

“Powered by our people, our campaigns put your audience first.”

Source: company website · checked Sep 5, 2026
3
BrainsoulsIndirect evidence
Birmingham, United KingdomHQ checked Sep 5, 202651-20082
Source: company website · checked Sep 5, 2026
4
ONE Agency MediaIndirect evidence
Manchester, United KingdomHQ checked Sep 5, 202611-5075

“One Agency: Creating, Delivering and Connecting brands.”

Source: company website · checked Sep 5, 2026
5
MABOPartial evidence
Middlesbrough, United KingdomHQ checked Sep 5, 202651-20069

“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, 2026
6
Sleeping Giant MediaIndirect evidence
Folkestone, United KingdomHQ checked Sep 5, 202651-20060

“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, 2026
7Hooton, United KingdomHQ checked Sep 5, 202651-20055

“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, 2026
8
OCM Digital MediaPartial evidence
London, United KingdomHQ checked Sep 5, 202651-20054

“OCM is a leading adtech agency providing solutions to advertisers, advertising agencies and to web, mobile & video publishers.”

Source: company website · checked Sep 5, 2026
9
EdirectIndirect evidence
Bournemouth, United KingdomHQ checked Sep 5, 202611-5054
Source: company website · checked Sep 5, 2026
10
AMS Media GroupIndirect evidence
London, United KingdomHQ checked Sep 5, 202611-5050

“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, 2026
11
Stellar SearchPartial evidence
London, United KingdomHQ checked Sep 5, 202611-5048

“We're a strategic digital marketing agency specialising in Paid Search, SEO, Google Shopping, Amazon and Social.”

Source: company website · checked Sep 5, 2026
12
Media Agency GroupPartial evidence
Salford, United KingdomHQ checked Sep 5, 202651-20048

“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, 2026
13Luton, United KingdomHQ checked Sep 5, 202651-20048

“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, 2026
14
Dark HorseIndirect evidence
Altrincham, United KingdomHQ checked Sep 5, 202611-5047

“Incredible PPC and SEO results are not the exclusive rights of those with deep pockets.”

Source: company website · checked Sep 5, 2026
15
BAMBUPartial evidence
London, United KingdomHQ checked Sep 5, 2026n/a45

“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, 2026
16
WolfendenPartial evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5044

“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, 2026
17
ClicktechIndirect evidence
Nottingham, United KingdomHQ checked Sep 5, 202611-5040

“Our mission is to make digital marketing accessible and more cost-effective for all businesses, regardless of size.”

Source: company website · checked Sep 5, 2026
18St Albans, United KingdomHQ checked Sep 5, 202611-5039

“In a world filled with information overload, we make the complex simple.”

Source: company website · checked Sep 5, 2026
19
KinaseIndirect evidence
London, United KingdomHQ checked Sep 5, 202611-5039

“Kinase is a leading Digital Marketing Agency providing services to some of the UK’s top companies.”

Source: company website · checked Sep 5, 2026
20
EquimediaIndirect evidence
Poulton, United KingdomHQ checked Sep 5, 202651-20038

“equimedia is a UK based, independent digital marketing agency with performance at our core.”

Source: company website · checked Sep 5, 2026
21
Automated CreativeIndirect evidence
London, United KingdomHQ checked Sep 5, 202611-5038

“Our platform helps performance marketers scale social, display and retail media campaigns.”

Source: company website · checked Sep 5, 2026
22
CNS Media LTDIndirect evidence
Chesterfield, United KingdomHQ checked Sep 5, 202611-5038

“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, 2026
23
Bbj&k LTDIndirect evidence
Birmingham, United KingdomHQ checked Sep 5, 202611-5037

“We are a UK-leading independent media agency that helps to partner your creativity with strategic media positioning.”

Source: company website · checked Sep 5, 2026
24
Mamba MarketingIndirect evidence
South Wales, United KingdomHQ checked Sep 5, 202651-20037

“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, 2026
25
LaunchIndirect evidence
Bristol, United KingdomHQ checked Sep 5, 202611-5036

“Launch empowers companies to grow with confidence through performance marketing.”

Source: company website · checked Sep 5, 2026

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, 2026
1-10Median size (employees)
LondonLargest hub · 752 HQs
820Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
1,551
11-50
459
51-200
63
201-500
8
501-1,000
6

Verified emails by last verification

0–30
2,615
31–60
151
61–90
1
90–180
0
180+
15

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.

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.

Ready to reach these companies? Verified emails and direct dials for all 2,092 paid advertising 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 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.