Company lists · Data refreshed November 2026

Top 25 Agency marketing services worldwide

Name: Agency marketing services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 244,540 companies tracked

RevenueBase identified 244,540 company matches for agency marketing services worldwide as of November 2026 and tracks 1,487,506 professional contacts across them, including 262,853 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for agency marketing services 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 agency marketing services 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

244,540Companies

1,487,506Contacts tracked

262,853Verified emails

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The 25 largest agency marketing services worldwide

Ranked by team size

Top 25 of 244,540 company matches for agency marketing services 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	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
2	IO	Exact match	Herentals, BelgiumHQ recorded Nov 6, 2026	1,001-5,000	3,790 contacts →
	Exact match “iO is an AI-native partner in marketing and technology, with experts across 12 campuses in Belgium, the Netherlands, Sweden, Denmark and Bulgaria.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	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
4	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
5	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
6	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
7	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
8	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
9	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
10	Marketizon	Exact match	London, United KingdomHQ recorded Nov 6, 2026	n/a	1,989 contacts →
	Exact match “Marketizon is the leader in developing innovative, multi-channel marketing technologies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Bbdo Worldwide	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,655 contacts →
	Exact match “Do Big Things” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Schbang	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,606 contacts →
	Exact match “Schbang is a Creative, Media & Technology Transformation Company founded in 2015 by Harshil Karia & , Sohil Karia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	TBC	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	n/a	1,328 contacts →
	Exact match “TBC is an independently owned, full-service branding, advertising and strategic communications agency with headquarters in Baltimore, Maryland, USA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	APS Group	Exact match	Stockport, United KingdomHQ recorded Nov 6, 2026	501-1,000	1,303 contacts →
	Exact match “We’ve been delivering marketing and communications since 1961.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Scorpion	Exact match	Draper, UT, United StatesHQ recorded Nov 6, 2026	501-1,000	1,186 contacts →
	Exact match “Scorpion is the leader in helping local businesses succeed by focusing on what truly matters-driving revenue.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Quadcubes	Exact match	Kozhikode, IndiaHQ recorded Nov 6, 2026	n/a	1,056 contacts →
	Exact match “We're not that yet another, ordinary marketing agency!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Brasil Monks	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,047 contacts →
	Exact match “Monks is the global, data-driven, digital-native operating brand of S4 Capital plc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Madison World	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,022 contacts →
	Exact match “Madison World, for the last 36 years has been helping clients solve their marketing challenges and generate sustainable profits.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Archway Marketing Services	Exact match	Maple Grove, MN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	988 contacts →
	Exact match “Archway is the preferred partner in marketing execution for well-known brands.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	IVE Group	Exact match	Sydney, AustraliaHQ recorded Nov 6, 2026	1,001-5,000	933 contacts →
	Exact match “IVE Group is Australia’s largest diversified marketing company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Verticurl A WPP Company	Exact match	SingaporeHQ recorded Nov 6, 2026	1,001-5,000	932 contacts →
	Exact match “Verticurl, a division of Ogilvy, was established in 2006 with the mission to be the world’s leading marketing technology services agency for multinational organizations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Logical Position	Exact match	Lake Oswego, NC, United StatesHQ recorded Nov 6, 2026	501-1,000	907 contacts →
	Exact match “Logical Position (LP) is an Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	WEBFX	Exact match	Harrisburg, PA, United StatesHQ recorded Nov 6, 2026	501-1,000	906 contacts →
	Exact match “We're here to be your digital marketing growth partner in the AI era.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	NP Digital	Exact match	San Diego, United StatesHQ recorded Nov 6, 2026	1,001-5,000	897 contacts →
	Exact match “Neil Patel has been recognized by the Wall Street Journal, Forbes, and the United Nations, to name a few, as one of the most influential and successful marketers and entrepreneurs…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	SEO INC	Exact match	Carlsbad, CA, United StatesHQ recorded Nov 6, 2026	n/a	838 contacts →
	Exact match “Since its inception in 1997, SEO Inc.” 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 “agency marketing services”. 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 244,540 agency marketing services worldwide

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Agency marketing services worldwide at a glance

As of Nov 6, 2026

17.7%Verified-email coverage

6.1Average contacts per company

1-10Median size (employees)

1.6%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

172,514

11-50

60,730

51-200

8,128

201-500

1,689

501-1,000

376

1,001-5,000

179

5,001-10,000

10001+

181

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 agency marketing services are linked below.
What qualifies: Company records worldwide whose business descriptions match “agency marketing services” 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 262,853 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.

Agency marketing services by location

789 lists · largest first

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

How many agency marketing services are there worldwide?

RevenueBase identified 244,540 company matches for agency marketing services 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?

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

Which country has the most agency marketing services?

The United States leads with 45,581 companies, followed by India (29,267) and the United Kingdom (12,910). Every agency marketing services list by country and city is linked on this page.

Which city has the most agency marketing services?

London leads with 3859 company records, followed by Sao Paulo (2582) and Dubai (2518).

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 262,853 professional contacts with verified work emails tracked across these 244,540 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.