Company lists · Data refreshed September 2026

Top 25 Activations agencies worldwide

Name: Activations agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 46,429 companies tracked

RevenueBase identified 46,429 activations agencies worldwide as of September 2026 and tracks 614,618 professional contacts across them, including 138,883 with verified work emails. The United States is the largest market and London the largest hub.

This list covers activations agencies worldwide, 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 21, 2026. Country and city lists for activations agencies follow the table.

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 21, 2026 86% judged on-target in blind review

46,429Companies

614,618Contacts tracked

138,883Verified emails

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The 25 largest activations agencies worldwide

Ranked by team size

Top 25 of 46,429 activations agencies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to activations 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	QUAD	Indirect evidence	Sussex, WI, United StatesHQ checked Sep 21, 2026	10001+	9,567 contacts →
	Indirect evidence “Quad (NYSE: QUAD) is a global marketing experience company that helps brands make direct consumer connections, from household to in-store to online.” Source: RevenueBase Database · checked Sep 21, 2026
2	LEO Burnett	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	5,001-10,000	5,385 contacts →
	Indirect evidence “Leo Burnett is a communications agency powered by its HumanKind operating system, with the belief that creativity, data and technology work together to transform human behavior…” Source: RevenueBase Database · checked Sep 21, 2026
3	Clinic	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	n/a	5,287 contacts →
	Indirect evidence “Clinic is an independent creative agency.” Source: RevenueBase Database · checked Sep 21, 2026
4	Omnicom Media Group	Indirect evidence	New York, United StatesHQ checked Sep 21, 2026	10001+	3,989 contacts →
	Indirect evidence “Omnicom Media Group (OMG), the media services division of Omnicom Group Inc, delivers transformational experiences for consumers, clients, and talent.” Source: RevenueBase Database · checked Sep 21, 2026
5	Mosaic North America	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	5,001-10,000	3,014 contacts →
	Indirect evidence “At Mosaic, we change the way people experience brands and make moments that stick.” Source: RevenueBase Database · checked Sep 21, 2026
6	Cheil Worldwide	Indirect evidence	Seoul, South KoreaHQ checked Sep 21, 2026	5,001-10,000	2,802 contacts →
	Indirect evidence “Cheil is a global network of marketing partners committed to the business mission of 'Creating Connected Experiences That Matter,' powered by a network of over experts working…” Source: RevenueBase Database · checked Sep 21, 2026
7	OTHER	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	n/a	2,671 contacts →
	Indirect evidence “Other.™ is a modern integrated media agency built for marketers who need more from their agency partner.” Source: RevenueBase Database · checked Sep 21, 2026
8	Digitas North America	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,654 contacts →
	Indirect evidence “Digitas is the Networked Experience Agency, built on the vision that we create magnetic experiences that earn the right for brands to exist in human networks.” Source: RevenueBase Database · checked Sep 21, 2026
9	GREY	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	5,001-10,000	2,648 contacts →
	Indirect evidence “Grey’s mission is to create Famously Effective ideas that move people, business, and the world forward-harnessing the power of creativity to solve business problems and deliver…” Source: RevenueBase Database · checked Sep 21, 2026
10	2020 Companies	Indirect evidence	Southlake, TX, United StatesHQ checked Sep 21, 2026	10001+	2,463 contacts →
	Indirect evidence “2020 Companies is an award-winning retail sales, merchandising, and experiential marketing agency headquartered in Southlake, TX.” Source: RevenueBase Database · checked Sep 21, 2026
11	Horizon Media	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,368 contacts →
	Indirect evidence “Horizon Media is a leader in driving business-based outcomes for marketers.” Source: RevenueBase Database · checked Sep 21, 2026
12	GOVT	Indirect evidence	SingaporeHQ checked Sep 21, 2026	n/a	2,242 contacts →
	Indirect evidence “GOVT is an independent creative agency from Singapore that believes in creating advertising that doesn't feel like advertising, and that it can disrupt the industry with human…” Source: RevenueBase Database · checked Sep 21, 2026
13	CARAT	Indirect evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
14	Residencia	Indirect evidence	MexicoHQ checked Sep 21, 2026	n/a	2,039 contacts →
	Indirect evidence “Somos investigadores, antropólogos, estrategas, creativos, diseñadores, animadores, productores, programadores, tecnólogos, creadores de contenido, socios de negocio, pero…” Source: RevenueBase Database · checked Sep 21, 2026
15	Omnicom	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	10001+	1,727 contacts →
	Indirect evidence “Omnicom is the world’s leading marketing and sales company, built for intelligent growth in the next era.” Source: RevenueBase Database · checked Sep 21, 2026
16	George P Johnson Experience Marketing	Indirect evidence	Auburn Hills, MI, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,605 contacts →
	Indirect evidence “GPJ is the world's leading strategic experience marketing agency.” Source: RevenueBase Database · checked Sep 21, 2026
17	Sportfive	Indirect evidence	Jing An, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,572 contacts →
	Indirect evidence “At SPORTFIVE, we pride ourselves on creating innovative, engaging solutions that are worthy of the incredible sports, athletes and partners we work with, and the passionate fans…” Source: RevenueBase Database · checked Sep 21, 2026
18	STAR	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 21, 2026	n/a	1,545 contacts →
	Indirect evidence “STAR is an all-in-one experiential marketing agency that builds captivating spaces for exhibits, events, corporate interiors, and retail stores.” Source: RevenueBase Database · checked Sep 21, 2026
19	MKTG	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,502 contacts →
	Indirect evidence “For over 20 years MKTG S+E has led some of the most transformative sponsorships in sports & entertainment.” Source: RevenueBase Database · checked Sep 21, 2026
20	Bbdo Worldwide	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	5,001-10,000	1,501 contacts →
	Indirect evidence “Do Big Things” Source: RevenueBase Database · checked Sep 21, 2026
21	GMR Marketing	Indirect evidence	New Berlin, WI, United StatesHQ checked Sep 21, 2026	501-1,000	1,497 contacts →
	Indirect evidence “We are the Experience Agency making unforgettable stories born of humanity.” Source: RevenueBase Database · checked Sep 21, 2026
22	Work On	Indirect evidence	São Paulo, BrazilHQ checked Sep 21, 2026	1,001-5,000	1,427 contacts →
	Indirect evidence “Entre as principais agências do Brasil, somos a Work On Group e estamos crescendo em todas as regiões do país, devido a isso já temos quase profissionais atuando em todo…” Source: RevenueBase Database · checked Sep 21, 2026
23	DDB Mudra Group	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	501-1,000	1,398 contacts →
	Indirect evidence “The birthplace of the creative revolution, DDB is built on the belief that emotional advantage creates business advantage.” Source: RevenueBase Database · checked Sep 21, 2026
24	Momentum Worldwide	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,320 contacts →
	Indirect evidence “People are no longer satisfied with simply "hearing" a brand's message.” Source: RevenueBase Database · checked Sep 21, 2026
25	Octagon	Indirect evidence	Stamford, CT, United StatesHQ checked Sep 21, 2026	501-1,000	1,305 contacts →
	Indirect evidence “We are Octagon.” Source: RevenueBase Database · checked Sep 21, 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: activations 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 activations agencies.
Partial evidence: Its own public description names part of activations agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name activations 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 46,429 activations agencies worldwide

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Activations agencies worldwide at a glance

As of Sep 21, 2026

22.6%Verified-email coverage

13.2Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

25,912

11-50

15,991

51-200

3,352

201-500

729

501-1,000

173

1,001-5,000

150

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 activations 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.
Coverage: Every country. Country and city lists for activations agencies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “activations 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 activations 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 activations agencies, and records with no verified work email.
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, 138,883 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 21, 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.

Activations agencies by location

190 lists · largest first

Every Activations agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 activations 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 activations agencies are there worldwide?

RevenueBase identified 46,429 activations agencies worldwide 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?

QUAD, headquartered in Sussex, tops this list with the largest team on record.

Which country has the most activations agencies?

The United States leads with 8,006 companies, followed by India (3,087) and Brazil (2,988). Every activations agencies list by country and city is linked on this page.

Which city has the most activations agencies?

London leads with 1242 headquartered companies, followed by Sao Paulo (1102) and New York (846).

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 138,883 verified decision-maker contacts tracked across these 46,429 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 21, 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.