Company lists · Data refreshed September 2026

Top 25 Immersive advertising agencies based in London, United Kingdom

Name: Immersive advertising 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 28, 2026 802 companies tracked

RevenueBase identified 802 immersive advertising agencies headquartered in London, United Kingdom as of September 2026 and tracks 22,900 professional contacts across them, including 8,352 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers immersive advertising agencies headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

802Companies

22,900Contacts tracked

8,352Verified emails

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The 25 largest immersive advertising agencies based in London, United Kingdom

Ranked by team size

Top 25 of 802 immersive advertising agencies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to immersive advertising agencies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Framestore	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	3,243 contacts →
	Strong evidence “Framestore combines talent and technology to reframe the possible in film, content, advertising and immersive experiences.” Source: RevenueBase Database · checked Sep 28, 2026
2	CARAT	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	5,001-10,000	2,182 contacts →
	Indirect evidence “Carat is the world’s first media agency and is privileged to work with some of today’s most storied and innovative brands.” Source: RevenueBase Database · checked Sep 28, 2026
3	Dentsu X	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	5,001-10,000	941 contacts →
	Indirect evidence “Welcome to dentsu X.” Source: RevenueBase Database · checked Sep 28, 2026
4	The Mill	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	n/a	654 contacts →
	Indirect evidence “The Mill is TransPerfect's creative studio built on decades of award-winning excellence and designed for a world where craft must scale.” Source: RevenueBase Database · checked Sep 28, 2026
5	M C Saatchi Performance	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	457 contacts →
	Indirect evidence “We are a Global digital media agency specializing in taking a human approach to connecting brands with people across all channels.” Source: RevenueBase Database · checked Sep 28, 2026
6	DMS	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	299 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
7	The7stars	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	295 contacts →
	Indirect evidence “the7stars is the UK’s largest independent media agency, offering the best people, the best service and the best creative media campaigns.” Source: RevenueBase Database · checked Sep 28, 2026
8	VIDSY	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	192 contacts →
	Indirect evidence “Vidsy helps global brands achieve business goals with effective video ads, created efficiently and consistently for digital.” Source: RevenueBase Database · checked Sep 28, 2026
9	Rapportww	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	180 contacts →
	Indirect evidence “Out-of-Home (OOH) agency pioneering the connection between creativity and dynamic OOH audiences.” Source: RevenueBase Database · checked Sep 28, 2026
10	TOMMY	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	150 contacts →
	Indirect evidence “Tommy is a creative agency and digital studio.” Source: RevenueBase Database · checked Sep 28, 2026
11	Grey London	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	148 contacts →
	Indirect evidence “We are Grey London.” Source: RevenueBase Database · checked Sep 28, 2026
12	Unit9	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	134 contacts →
	Indirect evidence “You don't need more creative output.” Source: RevenueBase Database · checked Sep 28, 2026
13	Goodstuff	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	132 contacts →
	Indirect evidence “We are an award-winning media planning and buying agency, helping brands cut through the noise with strategic clarity, inventive solutions, and commercial integrity.” Source: RevenueBase Database · checked Sep 28, 2026
14	Crimtan	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	130 contacts →
	Partial evidence “Crimtan was established in 2009 with a clear mission: to be a trusted partner for brands navigating the complex world of programmatic advertising.” Source: RevenueBase Database · checked Sep 28, 2026
15	Intermission Film	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	123 contacts →
	Indirect evidence “We are an award-winning creative agency specialising in audio-visual and design with the single ambition to create the best work possible.” Source: RevenueBase Database · checked Sep 28, 2026
16	Glassworks	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	119 contacts →
	Indirect evidence “For more than 25 years, we have developed visual content for all platforms through creative services such as concept development, live-action production, visual effects, CGI…” Source: RevenueBase Database · checked Sep 28, 2026
17	Dewynters	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	118 contacts →
	Partial evidence “We are DEWYNTERS, the leading integrated advertising agency for live entertainment.” Source: RevenueBase Database · checked Sep 28, 2026
18	Don't Panic London Certified B Corp	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	109 contacts →
	Indirect evidence “In the age of the conscious consumer, only the most culturally relevant ideas cut through.” Source: RevenueBase Database · checked Sep 28, 2026
19	Venatus	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	107 contacts →
	Partial evidence “Venatus Media is the advertising growth engine where premium games, sports, and entertainment content thrive, and brands meet audiences In the Zone.” Source: RevenueBase Database · checked Sep 28, 2026
20	Havas CX Helia	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	107 contacts →
	Indirect evidence “From pigeons to platforms, from news agency to integrated communications services, our story is one of constant reinvention.” Source: RevenueBase Database · checked Sep 28, 2026
21	Mesh Marketing	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	105 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
22	Squint Opera	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	102 contacts →
	Partial evidence “Squint/Opera, a Journey studio, specialises in immersive, interactive experiences and visually compelling content that bridge the digital and physical for architecture, urban…” Source: RevenueBase Database · checked Sep 28, 2026
23	Empire Design	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	100 contacts →
	Indirect evidence “Founded in 1996, Empire Design is an award-winning creative agency specialising in film and entertainment.” Source: RevenueBase Database · checked Sep 28, 2026
24	Happy Finish	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	92 contacts →
	Indirect evidence “We are HF.” Source: RevenueBase Database · checked Sep 28, 2026
25	The Gate London	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	88 contacts →
	Indirect evidence “We use creativity, data and technology to help ambitious brands connect with people anywhere and everywhere.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: immersive advertising agencies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names immersive advertising agencies.
Partial evidence: Its own public description names part of immersive advertising agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name immersive advertising agencies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 802 immersive advertising agencies based in London, United Kingdom

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Immersive advertising agencies based in London, United Kingdom at a glance

As of Sep 28, 2026

36.5%Verified-email coverage

28.6Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

457

11-50

257

51-200

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 802 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among immersive advertising agencies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “immersive advertising agencies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names immersive advertising agencies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among immersive advertising agencies, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 8,352 across the full list. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Immersive advertising agencies by metro in the United Kingdom

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names immersive advertising agencies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many immersive advertising agencies are there based in London, United Kingdom?

RevenueBase identified 802 immersive advertising agencies headquartered in London, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Framestore, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most immersive advertising agencies?

London leads the United Kingdom with 802 headquartered companies, followed by Manchester (47) and Bristol (28).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 8,352 verified decision-maker contacts tracked across these 802 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 Smart Search, 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.