Company lists · Data refreshed September 2026

Top 24 Strategic alliance marketing agencies based in London, United Kingdom

RevenueBase identified 819 company matches for strategic alliance marketing agencies associated with London, United Kingdom as of September 2026 and tracks 13,138 professional contacts across them, including 3,391 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for strategic alliance marketing agencies associated with London, 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 29, 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 29, 2026 How this list was built
819Companies
13,138Contacts tracked
3,391Verified emails
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The 24 largest strategic alliance marketing agencies based in London, United Kingdom

Ranked by team size
Top 24 of 819 company matches for strategic alliance marketing agencies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 29, 20265,001-10,0003,247 contacts →

Exact match

“Hello.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 29, 2026201-500459 contacts →

Exact match

“We are a creative agency that solves big business problems for brands with big ambitions.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 29, 2026201-500358 contacts →

Exact match

“Bulletproof is the world’s largest independent brand agency, creating desire through disruption to accelerate growth, drive standout, and fuel fandom.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-200306 contacts →

Exact match

“Culturally Connected, Seriously Effective.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-200214 contacts →

Exact match

“Making brands culturally relevant since 1993.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 29, 2026201-500182 contacts →

Exact match

“Billion Dollar Boy is a global social agency with Creator Instinct™.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-200134 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20099 contacts →

Exact match

“John Doe is a creative agency that makes the unknown, known.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20089 contacts →

Exact match

“J2 brings spaces and places to life for the world’s most ambitious brands.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20085 contacts →

Exact match

“The Specialist Works is built exclusively for marketers at entrepreneurial brands.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20077 contacts →

Exact match

“Founded in 2003, Substance is an award-winning digital marketing agency.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20069 contacts →

Exact match

“At Clarion Communications, we don't just solve brand problems; we seize opportunities that elevate brands to new heights.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20065 contacts →

Exact match

“Geronimo is an independent creative agency that believes change is good.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 29, 2026201-50060 contacts →

Exact match

“Assembly Europe is home to over 300 experts specialising in modern brand performance and omnichannel strategies.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20060 contacts →

Exact match

“OUR PEOPLE Our team brings a powerful blend of strategic minds and creative souls, delivering targeted solutions that capture your audiences’ hearts and heads.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5053 contacts →

Exact match

“Average is easy.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5052 contacts →

Exact match

“MONK is a brand strategy, design & experience firm, entrusted with delivering tactical and strategic marketing initiatives for some of the biggest brands and most influential…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20048 contacts →

Exact match

“We are Initials CX - a proudly independent marketing agency that help brands to deliver exceptional customer experiences.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20046 contacts →

Exact match

“We’re Ivory.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5041 contacts →

Exact match

“Maverick is an award-winning creative agency established in 1995, based in London and Vancouver.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20039 contacts →

Exact match

“M is the home of Qualified Creativity.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5036 contacts →

Exact match

“Alpha Agency is an Alpha Group Company.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 24 of 819 strategic alliance marketing agencies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 3,391 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Strategic alliance marketing agencies based in London, United Kingdom at a glance

As of Sep 29, 2026
25.8%Verified-email coverage
16.0Average contacts per company
1-10Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
573
11-50
183
51-200
45
201-500
13
501-1,000
3
1,001-5,000
1
5,001-10,000
1

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 819 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 London, United Kingdom whose business descriptions match “strategic alliance marketing 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 3,391 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 29, 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 “strategic alliance marketing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many strategic alliance marketing agencies are there based in London, United Kingdom?

RevenueBase identified 819 company matches for strategic alliance marketing agencies associated with London, 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?

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

Which city in the United Kingdom has the most strategic alliance marketing agencies?

London leads the United Kingdom with 819 company records, followed by Manchester (81) and Leeds (44).

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 3,391 professional contacts with verified work emails tracked across these 819 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 29, 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.