Company lists · Data refreshed November 2026

Top 25 Marketing services agencies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 235,790 companies tracked

RevenueBase identified 235,790 company matches for marketing services agencies worldwide as of November 2026 and tracks 1,764,682 professional contacts across them, including 324,653 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for marketing services agencies worldwide, 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 November 6, 2026. Country and city lists for marketing services agencies follow the table.

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 Nov 6, 2026 How this list was built

235,790Companies

1,764,682Contacts tracked

324,653Verified emails

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The 25 largest marketing services agencies worldwide

Ranked by team size

Top 25 of 235,790 company matches for marketing services agencies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	RRD	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	10001+	31,406 contacts →
	Exact match “RRD provides a complete portfolio of marketing, packaging, print and business services to the world’s most respected brands, including 92% of the Fortune 100.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Prefeitura Municipal	Exact match	BrazilHQ recorded Nov 6, 2026	n/a	29,800 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Publicis Groupe	Exact match	Paris, FranceHQ recorded Nov 6, 2026	10001+	20,192 contacts →
	Exact match “Founded in 1926 by Marcel Bleustein-Blanchet, today Publicis Groupe is one of the largest communications groups in the world and a leader in marketing, communication, and digital…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Epsilon	Exact match	Irving, United StatesHQ recorded Nov 6, 2026	5,001-10,000	10,260 contacts →
	Exact match “Epsilon is a global leader in data and identity with deep expertise in digital media, clean rooms, customer data platforms, loyalty and marketing services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	QUAD	Exact match	Sussex, WI, United StatesHQ recorded Nov 6, 2026	10001+	9,249 contacts →
	Exact match “Quad (NYSE: QUAD) is a global marketing experience company that helps brands make direct consumer connections, from household to in-store to online.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Deloitte Digital	Exact match	Usa, CA, FranceHQ recorded Nov 6, 2026	10001+	7,622 contacts →
	Exact match “At Deloitte Digital, we connect brands with the right strategies and tools to create great impact.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	WPP	Exact match	London, FranceHQ recorded Nov 6, 2026	10001+	6,648 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	MONKS	Exact match	London, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	6,339 contacts →
	Exact match “Monks combines an extraordinary range of global marketing and technology services to accelerate business possibilities and redefine how brands and businesses interact with the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Bank Of The West	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	n/a	5,345 contacts →
	Exact match “We help businesses and nonprofits grow, communicate, and succeed, professionally and affordably.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Zenith	Exact match	London, IL, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	4,405 contacts →
	Exact match “Zenith is the ROI Agency.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	IPG Mediabrands	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	4,396 contacts →
	Exact match “IPG Mediabrands is the media and marketing solutions division of Interpublic Group (NYSE: IPG).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Thompson	Exact match	New York, United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,822 contacts →
	Exact match “J.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Xdbs Worldwide	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 6, 2026	1,001-5,000	3,609 contacts →
	Exact match “At XDBS, we primarily work with media agencies, publishers and marketing companies looking to leverage marketing automation and digital marketing capacity and capability to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Mediacom	Exact match	London, NY, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	3,500 contacts →
	Exact match “Hello.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	DEPT	Exact match	Amsterdam, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	3,470 contacts →
	Exact match “DEPT® is a Growth Invention company built to help the world’s most ambitious brands grow faster.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Cheil Worldwide	Exact match	Seoul, South KoreaHQ recorded Nov 6, 2026	5,001-10,000	2,976 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Digitas North America	Exact match	Boston, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,860 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	GREY	Exact match	New York, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,800 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Omnicom	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	2,762 contacts →
	Exact match “Omnicom is the world’s leading marketing and sales company, built for intelligent growth in the next era.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Mccann Worldgroup	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	2,664 contacts →
	Exact match “McCann Worldgroup, part of the Interpublic Group (NYSE: IPG), is the irrefutable leader in the business of creativity.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	MRM	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,660 contacts →
	Exact match “MRM is a modern relationship marketing agency that builds enduring brand relationships.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Horizon Media	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,506 contacts →
	Exact match “Horizon Media is a leader in driving business-based outcomes for marketers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Best Version Media	Exact match	Brookfield, WI, United StatesHQ recorded Nov 6, 2026	n/a	2,470 contacts →
	Exact match “Best Version Media simplifies local marketing by offering small and midsize businesses a complete mix of solutions to keep them top-of-mind, from community magazine ads to digital…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Omnicom Media Group	Exact match	New York, United StatesHQ recorded Nov 6, 2026	10001+	2,447 contacts →
	Exact match “Omnicom Media Group (OMG), the media services division of Omnicom Group Inc, delivers transformational experiences for consumers, clients, and talent.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Marketing Werks	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	n/a	2,265 contacts →
	Exact match “Marketing Werks has become Product Connections, a fully integrated engagement agency specializing in omnichannel solutions that build relationships between brands and consumers.” Recorded in the RevenueBase company graph · Nov 6, 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 “marketing services 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 235,790 marketing services agencies worldwide

See the full list, filter by size, metro and specialty, and access 324,653 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marketing services agencies worldwide at a glance

As of Nov 6, 2026

18.4%Verified-email coverage

7.5Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

162,612

11-50

60,255

51-200

9,186

201-500

2,000

501-1,000

501

1,001-5,000

316

5,001-10,000

10001+

189

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for marketing services agencies are linked below.
What qualifies: Company records worldwide whose business descriptions match “marketing services 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. 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 324,653 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 November 6, 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.

Marketing services agencies by location

816 lists · largest first

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

How many marketing services agencies are there worldwide?

RevenueBase identified 235,790 company matches for marketing services agencies worldwide as of November 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?

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

Which country has the most marketing services agencies?

The United States leads with 49,880 companies, followed by India (27,150) and the United Kingdom (12,740). Every marketing services agencies list by country and city is linked on this page.

Which city has the most marketing services agencies?

London leads with 3941 company records, followed by Sao Paulo (2509) and New York (2435).

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 324,653 professional contacts with verified work emails tracked across these 235,790 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 November 6, 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.