Company lists · Data refreshed September 2026

Top 25 AI event marketing agencies based in London, United Kingdom

Name: AI event marketing agencies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 3,503 companies tracked

RevenueBase identified 3,503 company matches for AI event marketing agencies associated with London, United Kingdom as of September 2026 and tracks 54,118 professional contacts across them, including 10,573 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for AI event 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 27, 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 27, 2026 How this list was built

3,503Companies

54,118Contacts tracked

10,573Verified emails

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The 25 largest AI event marketing agencies based in London, United Kingdom

Ranked by team size

Top 25 of 3,503 company matches for AI event marketing agencies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Mediacom	Exact match	London, United KingdomHQ recorded Sep 27, 2026	5,001-10,000	3,247 contacts →
	Exact match “Hello.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	Dentsu X	Exact match	London, United KingdomHQ recorded Sep 27, 2026	5,001-10,000	941 contacts →
	Exact match “Welcome to dentsu X.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	Imagination	Exact match	London, United KingdomHQ recorded Sep 27, 2026	201-500	705 contacts →
	Exact match “Imagination is The Original Experience Design Agency.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	Influencer	Exact match	London, United KingdomHQ recorded Sep 27, 2026	201-500	640 contacts →
	Exact match “Influencer is a global creator marketing agency on a mission to shape the future of marketing by humanizing brands.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	The Delta Group	Exact match	London, United KingdomHQ recorded Sep 27, 2026	501-1,000	389 contacts →
	Exact match “The Delta Group is committed to service excellence in-store, outdoor and online.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	Entourage	Exact match	London, United KingdomHQ recorded Sep 27, 2026	51-200	370 contacts →
	Exact match “In a world where everyone’s shouting the same thing, whisper something truly distinctive in all the right ears.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7	Bulletproof	Exact match	London, United KingdomHQ recorded Sep 27, 2026	201-500	358 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 27, 2026 · View company records in RevenueBase
8	Fast Track	Exact match	London, United KingdomHQ recorded Sep 27, 2026	51-200	354 contacts →
	Exact match “Fast Track works with major brands and Governing Bodies to develop and implement strategies that drive business through sport.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	Blackjack Promotions	Exact match	London, United KingdomHQ recorded Sep 27, 2026	1,001-5,000	348 contacts →
	Exact match “Blackjack are specialists in human connection, with expertise in the creation, delivery and deployment of travel retail and experiential campaigns.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	FUSE	Exact match	London, United KingdomHQ recorded Sep 27, 2026	51-200	306 contacts →
	Exact match “Culturally Connected, Seriously Effective.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	DMS	Exact match	London, United KingdomHQ recorded Sep 27, 2026	51-200	299 contacts →
	Exact match “WE ARE A GLOBAL CREATIVE DIGITAL AGENCY At DMS, we bring together a powerhouse of creative, media intelligence and digital disciplines under one roof to support world-class…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	Spring Studios	Exact match	London, United KingdomHQ recorded Sep 27, 2026	201-500	279 contacts →
	Exact match “Spring is a global creative agency, headquartered in Europe, devoted to creating the exceptional for the world's most prestigious brands.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	Event Concept	Exact match	London, United KingdomHQ recorded Sep 27, 2026	51-200	275 contacts →
	Exact match “Event Concept is a creative event agency and production company.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	Premier	Exact match	London, United KingdomHQ recorded Sep 27, 2026	51-200	272 contacts →
	Exact match “Creative communications for entertainment, arts and culture.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15	OK Cool	Exact match	London, United KingdomHQ recorded Sep 27, 2026	51-200	259 contacts →
	Exact match “Strategic and (very) creative partners to the world’s leading brands.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	Elevate Global	Exact match	London, United KingdomHQ recorded Sep 27, 2026	51-200	254 contacts →
	Exact match “Elevate Global is the award-winning staffing partner for brand experiences, named Staffing Agency of the Year at the Campaign Experience Awards 2025.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Kitchen	Exact match	London, United KingdomHQ recorded Sep 27, 2026	n/a	229 contacts →
	Exact match “Welcome to Kitchen.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	Exposure	Exact match	London, United KingdomHQ recorded Sep 27, 2026	51-200	214 contacts →
	Exact match “Making brands culturally relevant since 1993.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Havas Play UK	Exact match	London, United KingdomHQ recorded Sep 27, 2026	51-200	194 contacts →
	Exact match “Campaign Brand Experience Agency of The year 2026 - Bronze : Campaign Best Places to Work 2022; 2023; 2024; 2025.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Amplify	Exact match	London, United KingdomHQ recorded Sep 27, 2026	201-500	184 contacts →
	Exact match “Amplify is a global creative agency, specializing in experience, entertainment and culture.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	Billion Dollar BOY	Exact match	London, United KingdomHQ recorded Sep 27, 2026	201-500	182 contacts →
	Exact match “Billion Dollar Boy is a global social agency with Creator Instinct™.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	BIG Group	Exact match	London, United KingdomHQ recorded Sep 27, 2026	51-200	177 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 27, 2026 · View company records in RevenueBase
23	CSM Sport & Entertainment	Exact match	London, United KingdomHQ recorded Sep 27, 2026	1,001-5,000	168 contacts →
	Exact match “Now part of Wasserman, CSM is a global sport and entertainment agency, offering our clients end-to-end marketing services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	Investis Digital	Exact match	London, United KingdomHQ recorded Sep 27, 2026	501-1,000	158 contacts →
	Exact match “IDX (formerly Investis Digital) specializes in elevating companies and brands and maximizing technology to build strong, relatable, and authentic connections with their audiences.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	TOMMY	Exact match	London, United KingdomHQ recorded Sep 27, 2026	51-200	150 contacts →
	Exact match “Tommy is a creative agency and digital studio.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “AI event marketing agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 3,503 AI event marketing agencies based in London, United Kingdom

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AI event marketing agencies based in London, United Kingdom at a glance

As of Sep 27, 2026

19.5%Verified-email coverage

15.4Average contacts per company

1-10Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

2,336

11-50

923

51-200

182

201-500

501-1,000

1,001-5,000

5,001-10,000

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 3,503 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 “AI event 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 10,573 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 27, 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.

AI event marketing agencies by metro in the United Kingdom

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 “AI event marketing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many AI event marketing agencies are there based in London, United Kingdom?

RevenueBase identified 3,503 company matches for AI event 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 AI event marketing agencies?

London leads the United Kingdom with 3,503 company records, followed by Manchester (320) and Birmingham (201).

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 10,573 professional contacts with verified work emails tracked across these 3,503 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 27, 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.