Company lists · Data refreshed October 2026

Top 25 Field marketing agencies based in London, United Kingdom

RevenueBase identified 603 company matches for field marketing agencies associated with London, United Kingdom as of October 2026 and tracks 15,716 professional contacts across them, including 2,951 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for field 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 October 1, 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 Oct 1, 2026 How this list was built
603Companies
15,716Contacts tracked
2,951Verified emails
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The 25 largest field marketing agencies based in London, United Kingdom

Ranked by team size
Top 25 of 603 company matches for field marketing agencies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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 Oct 1, 20265,001-10,000941 contacts →

Exact match

“Welcome to dentsu X.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Oct 1, 2026n/a559 contacts →

Exact match

“Appco UK is an expert at designing, planning, managing, executing and analysing field marketing and fundraising campaigns.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200370 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 · Oct 1, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Oct 1, 20261,001-5,000348 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 · Oct 1, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200275 contacts →

Exact match

“Event Concept is a creative event agency and production company.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200258 contacts →

Exact match

“Converting consumer passions into sales potential.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200254 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 · Oct 1, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200194 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 · Oct 1, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-50136 contacts →

Exact match

“Seed is a results-driven experience agency turning creativity into conversion.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200134 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200132 contacts →

Exact match

“Strata is an award-winning agency crafting unforgettable brand experiences through a multi-layered offering.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200120 contacts →

Exact match

“Smyle is a brand experience agency that develops impactful in-person activations, imaginative digital experiences, and compelling content for some of the world’s most loved brands.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200118 contacts →

Exact match

“We are DEWYNTERS, the leading integrated advertising agency for live entertainment.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200110 contacts →

Exact match

“We turn big ideas into brand experiences that stir emotions, change perceptions, fuel conversations and inspire action.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200109 contacts →

Exact match

“We are Sweet & Chilli.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200108 contacts →

Exact match

“Right Formula is an award-winning global sports marketing agency that handles all aspects of sports sponsorship to ensure that chosen partnerships deliver against their desired…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-5095 contacts →

Exact match

“Campaign Experience Awards: Creative Experience Agency of the Year (small) 2025 Event Team of the Year 2023 & 2024 The Drum: Leader of the Year 2023 Creativepool: Small Agency of…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-20082 contacts →

Exact match

“Ingenuity creates new business relationships between Agencies and Brands For Agencies: We help them find, meet and win new clients through content & insight led Lead Generation…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-5080 contacts →

Exact match

“Kru Live is a global brand experience agency powered by people.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-20080 contacts →

Exact match

“The most compelling experiences can only be achieved by people with the imagination and drive to get things done.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-20076 contacts →

Exact match

“We connect brands to consumers through the things people love, building Cultural Power through passions.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-20073 contacts →

Exact match

“Your audience is your most powerful asset, and we’re determined to inspire them.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 603 field marketing agencies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 2,951 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Field marketing agencies based in London, United Kingdom at a glance

As of Oct 1, 2026
18.8%Verified-email coverage
26.1Average contacts per company
1-10Median size (employees)
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
307
11-50
207
51-200
71
201-500
6
501-1,000
3
1,001-5,000
6
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 603 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 “field 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 2,951 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 October 1, 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 “field marketing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 603 company matches for field marketing agencies associated with London, United Kingdom as of October 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 in the United Kingdom has the most field marketing agencies?

London leads the United Kingdom with 603 company records, followed by Manchester (63) and Birmingham (42).

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 2,951 professional contacts with verified work emails tracked across these 603 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 October 1, 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.