Company lists · Data refreshed September 2026

Top 25 Adtech consulting services based in the United Kingdom

RevenueBase identified 616 company matches for adtech consulting services associated with the United Kingdom as of September 2026 and tracks 13,449 professional contacts across them, including 3,018 with verified work emails. London is the largest hub.

This list covers company matches for adtech consulting services 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 21, 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 21, 2026 How this list was built
616Companies
13,449Contacts tracked
3,018Verified emails
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The 25 largest adtech consulting services based in the United Kingdom

Ranked by team size
Top 25 of 616 company matches for adtech consulting services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 21, 20265,001-10,000368 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200178 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 21, 2026201-500155 contacts →

Exact match

“Expandi Group is a global leader in AdTech, MarTech and Managed Services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200130 contacts →

Exact match

“Crimtan was established in 2009 with a clear mission: to be a trusted partner for brands navigating the complex world of programmatic advertising.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 21, 2026201-50099 contacts →

Exact match

“Admixer is an independent adtech company that develops an ecosystem of full-stack programmatic solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchLeeds / London, United KingdomHQ recorded Sep 21, 202651-20081 contacts →

Exact match

“We are Havas Market.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-20076 contacts →

Exact match

“Mind Digital Group is an independent digital company that is focused on servicing global clients and partner agencies.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 21, 20265,001-10,00074 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-20069 contacts →

Exact match

“Nest Commerce is a technology-led agency working with brands like Urban Outfitters, Hims and Damson Madder.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-20064 contacts →

Exact match

“We are an award-winning full-service digital agency, part of Jakala group with 1,800 employees across 16 countries around the world.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-20055 contacts →

Exact match

“59A is a technology business built to engineer opportunity within the ever increasing complexity of media strategy, planning, and buying.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-20054 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchNottingham, United KingdomHQ recorded Sep 21, 202651-20050 contacts →

Exact match

“TechPartner is a leading IT services company with 7 years of experience, specializing in web and app development, UI/UX design, enterprise software, cloud infrastructure, and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 21, 2026n/a45 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchBournemouth, United KingdomHQ recorded Sep 21, 202611-5043 contacts →

Exact match

“Appius help clients improve digital marketing results by integrating marketing and technology to support business objectives.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchCardiff, United KingdomHQ recorded Sep 21, 202611-5041 contacts →

Exact match

“We offer digital marketing consultancy, strategy, training and delivery.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 21, 2026501-1,00039 contacts →

Exact match

“Nexxen empowers advertisers, agencies, publishers and broadcasters around the world to utilize data and advanced TV in the ways that are most meaningful to them.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchPoulton, United KingdomHQ recorded Sep 21, 202651-20038 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5036 contacts →

Exact match

“AppSynergies is a fast-growing company offering technical & marketing consultancy services with a very talented and rapidly expanding team.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchKnaresborough, United KingdomHQ recorded Sep 21, 202611-5030 contacts →

Exact match

“Award-winning digital marketing that delivers.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5029 contacts →

Exact match

“Future-proofing B2B digital advertising and analytics in a cookieless world.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5028 contacts →

Exact match

“Based in London, Terrier has a team that has collectively over 50 years experience in digital advertising.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5026 contacts →

Exact match

“Bespoke digital advertising strategy + creative Mission-driven ecomm brands need a different kind of agency.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchNorwich, United KingdomHQ recorded Sep 21, 202611-5025 contacts →

Exact match

“We are a full-service digital agency built to help ambitious brands grow.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5025 contacts →

Exact match

“At Voise Tech, we simplify the complexity of digital advertising through.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 616 adtech consulting services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 3,018 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Adtech consulting services based in the United Kingdom at a glance

As of Sep 21, 2026
22.4%Verified-email coverage
21.8Average contacts per company
1-10Median size (employees)
48.7%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
402
11-50
163
51-200
35
201-500
5
501-1,000
7
1,001-5,000
1
5,001-10,000
2

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 616 companies.

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 consulting services” 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 3,018 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 21, 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.

Adtech consulting services by metro

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 consulting services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many adtech consulting services are there based in the United Kingdom?

RevenueBase identified 616 company matches for adtech consulting services 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?

Merkle Emea tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most adtech consulting services?

London leads with 300 company records, followed by Manchester (23) and Birmingham (11).

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 3,018 professional contacts with verified work emails tracked across these 616 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 21, 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.