Company lists · Data refreshed September 2026

Top 25 Martech integration agencies based in the United Kingdom

RevenueBase identified 1,397 company matches for martech integration agencies associated with the United Kingdom as of September 2026 and tracks 22,297 professional contacts across them, including 5,746 with verified work emails and 1,693 with mobile numbers. London is the largest hub.

This list covers company matches for martech integration agencies 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 14, 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 14, 2026 How this list was built
1,397Companies
22,297Contacts tracked
5,746Verified emails
1,693Mobile numbers
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The 25 largest martech integration agencies based in the United Kingdom

Ranked by team size
Top 25 of 1,397 company matches for martech integration agencies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 14, 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 14, 20265,001-10,000941 contacts →

Exact match

“Welcome to dentsu X.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 14, 20261,001-5,000925 contacts →

Exact match

“A global, fully integrated agency with AI at its heart.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 14, 2026501-1,000709 contacts →

Exact match

“We are Digitas.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
4Exact matchMansfield, United KingdomHQ recorded Sep 14, 20261,001-5,000649 contacts →

Exact match

“We’re Linney, a connected marketing partner helping brands turn complexity into clarity across digital, physical and ecommerce channels.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
5Exact matchBrighton And Hove, United KingdomHQ recorded Sep 14, 202651-200532 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 14, 2026201-500289 contacts →

Exact match

“We deliver full-service B2B marketing solutions for world-class customer experiences – with an eye always toward the future.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
7Exact matchLeeds, United KingdomHQ recorded Sep 14, 2026n/a255 contacts →

Exact match

“You Grow.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
8Exact matchLeicester, United KingdomHQ recorded Sep 14, 2026201-500210 contacts →

Exact match

“Welcome to Go Inspire - Your Marketing Performance Partner!”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200177 contacts →

Exact match

“Founded in 1991, with offices in Amsterdam, Bath, Dubai and London our award-winning employee-owned company has consistently ranked as one of the UK's leading independent digital…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
10Exact matchReading, United KingdomHQ recorded Sep 14, 2026201-500166 contacts →

Exact match

“We are storytellers, mime-artists, gesticulators.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 14, 2026201-500155 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 14, 2026201-500150 contacts →

Exact match

“At krow Group, our ideas are designed to make a genuine difference, building your brand and making it easier to buy by capturing and converting people’s attention.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
13Exact matchFrome, United KingdomHQ recorded Sep 14, 202651-200138 contacts →

Exact match

“The B2B marketing agency built for complex tech sales.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 14, 2026201-500137 contacts →

Exact match

“Rhapsody is a solutions agency built for ambitious brands.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200134 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 14, 2026201-500132 contacts →

Exact match

“Metia is a global marketing agency with offices in London, Seattle, Austin and Singapore.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
17Exact matchMarlow, United KingdomHQ recorded Sep 14, 202651-200130 contacts →

Exact match

“We deliver marketing that drives real business impact in our core sectors; retail destinations, leisure & attractions, and wines & spirits.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
18Exact matchChristchurch, United KingdomHQ recorded Sep 14, 202651-200129 contacts →

Exact match

“We connect brands with customers.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200114 contacts →

Exact match

“Tangent, an Exadel company, delivers future-ready AI experiences and digital products that transform enterprise.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200112 contacts →

Exact match

“Pencil is Marketing's AI Operating System.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
21Exact matchLeeds, United KingdomHQ recorded Sep 14, 202651-200111 contacts →

Exact match

“When strategy, creative and production work as one, brands move faster.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200111 contacts →

Exact match

“We’re MOI Global – the Not-So-B2B agency.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200105 contacts →

Exact match

“We’re an integrated marketing agency, delivering ideas that sell across multiple touchpoints, channels and disciplines – from shopper and digital to retail and experiential to…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200105 contacts →

Exact match

“We’re an integrated marketing agency who are fiercely proud of our work, our clients and our people.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 14, 2026501-1,000103 contacts →

Exact match

“EssenceMediacom is GroupM’s newest and largest agency, committed to delivering breakthroughs for brands in the New Communications Economy.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase

Showing 25 of 1,397 martech integration agencies based in the United Kingdom

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Martech integration agencies based in the United Kingdom at a glance

As of Sep 14, 2026
25.8%Verified-email coverage
7.6%Mobile-number coverage
16.0Average contacts per company
1-10Median size (employees)
36.8%Largest-city concentration · London
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
855
11-50
417
51-200
90
201-500
21
501-1,000
6
1,001-5,000
3
5,001-10,000
3

Freshness & accuracy

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

Email last verified

Median 16.0d

Company record updated

Median 79.0d

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 “martech integration agencies” 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 5,746 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 14, 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 “martech integration agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many martech integration agencies are there based in the United Kingdom?

RevenueBase identified 1,397 company matches for martech integration agencies 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?

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

Which city has the most martech integration agencies?

London leads with 514 company records, followed by Manchester (61) and Leeds (31).

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 5,746 professional contacts with verified work emails tracked across these 1,397 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 14, 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.