Company lists · Data refreshed September 2026

Top 24 Adtech consultancies based in the United Kingdom

RevenueBase identified 3,596 company matches for adtech consultancies associated with the United Kingdom as of September 2026 and tracks 65,271 professional contacts across them, including 18,278 with verified work emails and 7,088 with mobile numbers. London is the largest hub.

This list covers company matches for adtech consultancies associated with the 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 September 22, 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 Sep 22, 2026 How this list was built
3,596Companies
65,271Contacts tracked
18,278Verified emails
7,088Mobile numbers
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The 24 largest adtech consultancies based in the United Kingdom

Ranked by team size
Top 24 of 3,596 company matches for adtech consultancies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 22, 202610001+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 · Sep 22, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 22, 20261,001-5,0005,657 contacts →

Exact match

“HH Global is the global leader in tech-enabled creative production and procurement.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 22, 20265,001-10,0004,133 contacts →

Exact match

“Zenith is the ROI Agency.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 22, 20265,001-10,0002,366 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 22, 20265,001-10,0002,182 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchManchester, United KingdomHQ recorded Sep 22, 2026201-500844 contacts →

Exact match

“We are the largest Google Cloud-only digital consultancy in Europe, and our mission is to change the way technology works for business.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 22, 2026501-1,000625 contacts →

Exact match

“Ebiquity is the independent authority in Marketing Effectiveness.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchBrighton And Hove, United KingdomHQ recorded Sep 22, 202651-200532 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 22, 2026201-500527 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 22, 2026201-500457 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 · Sep 22, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-200434 contacts →

Exact match

“MBA: The Acceleration Agents, where digital and direct interconnect.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 22, 2026501-1,000416 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 · Sep 22, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 22, 2026201-500401 contacts →

Exact match

“LoopMe is bringing brands into apps, powered by AI agents.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 22, 20265,001-10,000368 contacts →

Exact match

“Merkle, a dentsu company, powers the experience economy.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 22, 2026201-500344 contacts →

Exact match

“Blis, part of T-Mobile Advertising Solutions, is an omnichannel advertising platform that helps brands understand, reach, and engage audiences across every major channel and…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 22, 2026201-500295 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 22, 2026501-1,000282 contacts →

Exact match

“At NewBase we provide expert and independent marketing and advertising services across all media channels globally.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchLeeds, United KingdomHQ recorded Sep 22, 2026501-1,000236 contacts →

Exact match

“Jaywing Part of the Stubben Edge Group We’re an award-winning creative, media and data agency.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 22, 2026201-500210 contacts →

Exact match

“A world where complexity is the only constant demands a new breed of company.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-200195 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-200192 contacts →

Exact match

“Vidsy helps global brands achieve business goals with effective video ads, created efficiently and consistently for digital.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchNottingham, United KingdomHQ recorded Sep 22, 202651-200182 contacts →

Exact match

“We're a performance marketing agency setting the new standard of excellence through our people, our performance and our technology, with offices in Manchester, Nottingham, London…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-200179 contacts →

Exact match

“VIOOH is a leading premium global digital out of home supply side platform.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-200178 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 24 of 3,596 adtech consultancies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 18,278 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Adtech consultancies based in the United Kingdom at a glance

As of Sep 22, 2026
28.0%Verified-email coverage
10.9%Mobile-number coverage
18.2Average contacts per company
1-10Median size (employees)
47.1%Largest-city concentration · London
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
2,402
11-50
915
51-200
200
201-500
36
501-1,000
17
1,001-5,000
6
5,001-10,000
8
10001+
2

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 24.0d

Company record updated

Median 82.0d

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 the United Kingdom whose business descriptions match “adtech consultancies” 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 18,278 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 September 22, 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.

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 “adtech consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many adtech consultancies are there based in the United Kingdom?

RevenueBase identified 3,596 company matches for adtech consultancies associated with the United Kingdom as of September 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 has the most adtech consultancies?

London leads with 1695 company records, followed by Manchester (138) and Birmingham (66).

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 18,278 professional contacts with verified work emails tracked across these 3,596 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 September 22, 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.