Company lists · Data refreshed November 2026

Top 25 Media buyer agencies worldwide

RevenueBase identified 2,824 company matches for media buyer agencies worldwide as of November 2026 and tracks 29,406 professional contacts across them, including 9,178 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for media buyer 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 media buyer 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
2,824Companies
29,406Contacts tracked
9,178Verified emails
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The 25 largest media buyer agencies worldwide

Ranked by team size
Top 25 of 2,824 company matches for media buyer 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Nov 6, 20261,001-5,0002,506 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
2Exact matchStamford, CT, United StatesHQ recorded Nov 6, 2026201-500516 contacts →

Exact match

“ICON International is the largest independent principal-based media buyer in the U.S, placing nearly $2 billion annually on behalf of its clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchCologne, GermanyHQ recorded Nov 6, 2026501-1,000400 contacts →

Exact match

“Dürfen wir uns vorstellen?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSão Paulo, BrazilHQ recorded Nov 6, 2026201-500330 contacts →

Exact match

“cocreative native agency”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMilan, ItalyHQ recorded Nov 6, 2026201-500304 contacts →

Exact match

“CAIRORCS MEDIA è la concessionaria di Cairo Communication nata nel gennaio 2021 dalla fusione di RCS Pubblicità e Cairo Pubblicità.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMoscow, United StatesHQ recorded Nov 6, 2026201-500287 contacts →

Exact match

“OMD Media Direction offers a full range of media services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchWest Des Moines, IA, United StatesHQ recorded Nov 6, 202651-200227 contacts →

Exact match

“OnMedia utilizes the most advanced technology for targeted digital and TV advertising.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBerlin, GermanyHQ recorded Nov 6, 2026201-500205 contacts →

Exact match

“At Media Impact, we are the fastest and most creative customer understanding people in Germany.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPyrmont, AustraliaHQ recorded Nov 6, 2026201-500191 contacts →

Exact match

“Spark Foundry Australia is a leading media agency within Publicis Groupe ANZ, with offices in Sydney and Melbourne and a team of 300+ good humans.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200186 contacts →

Exact match

“All Response Media is the leading performance media planning and buying agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchColumbia, DC, United StatesHQ recorded Nov 6, 202651-200172 contacts →

Exact match

“Division-D is a full-service digital media partner offering fully managed programmatic, search, social, and influencer marketing solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBryanston, South AfricaHQ recorded Nov 6, 202651-200169 contacts →

Exact match

“The MediaShop is a full service, innovative, pioneering, always evolving media agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMissoula, MT, United StatesHQ recorded Nov 6, 202651-200158 contacts →

Exact match

“We are an end-to-end Media Execution Partner (MEP) built for independent agencies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchChicago, IL, United StatesHQ recorded Nov 6, 202651-200139 contacts →

Exact match

“Architects of Growth; Optimizers of Outcomes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchIndiaHQ recorded Nov 6, 202651-200131 contacts →

Exact match

“Lintas Media Group is among the oldest media agencies in India.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMoscow, RussiaHQ recorded Nov 6, 2026201-500115 contacts →

Exact match

“Gazprom-media sales house offers a unique advertising ecosystem in an all-in-one-window format.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBrighton, AustraliaHQ recorded Nov 6, 202651-200113 contacts →

Exact match

“Welcome to Nunn Media, Australia’s largest independent media strategy and buying agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-200113 contacts →

Exact match

“Noble People is a media agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPhnom Penh, CambodiaHQ recorded Nov 6, 2026201-500111 contacts →

Exact match

“MSA is the largest Cambodian-owned, independent local agency that has been at the forefront of Cambodia’s advertising scene for over a decade.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBaltimore, MD, United StatesHQ recorded Nov 6, 202611-50105 contacts →

Exact match

“Media Works is an integrated marketing agency with specialized capabilities in media research, planning and buying.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLahore District, PakistanHQ recorded Nov 6, 2026201-500102 contacts →

Exact match

“With over a decade of media buying experience and acquired expertise, Time and Space Media has become one of the largest and most trusted media buying firms in the country.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchKolkata, IndiaHQ recorded Nov 6, 202651-20099 contacts →

Exact match

“Launched in Feb 2009, releaseMyAd is now among the leading Online Advertising Agencies in India having serviced over 1.5 Lakh advertisers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchChapinero, ColombiaHQ recorded Nov 6, 202651-20095 contacts →

Exact match

“Full service Agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202651-20094 contacts →

Exact match

“En son veri, dijital ve analitik teknoloji yapısıyla müşterilerine işlerini güçlendirmek ve pazarda etkinliklerini artırmaları için eşsiz medya planlama ve satın alma hizmetleri…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBaden-baden, GermanyHQ recorded Nov 6, 202651-20092 contacts →

Exact match

“Future-oriented marketing thrives on credible omnichannel campaigns.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 2,824 media buyer agencies worldwide

See the full list, filter by size, metro and specialty, and access 9,178 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Media buyer agencies worldwide at a glance

As of Nov 6, 2026
31.2%Verified-email coverage
10.4Average contacts per company
1-10Median size (employees)
2.0%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,600
11-50
965
51-200
184
201-500
49
501-1,000
5
1,001-5,000
5
5,001-10,000
3
10001+
2

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 media buyer agencies are linked below.
What qualifies
Company records worldwide whose business descriptions match “media buyer 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 9,178 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.

Media buyer agencies by location

19 lists · largest first

Every Media buyer 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 “media buyer agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many media buyer agencies are there worldwide?

RevenueBase identified 2,824 company matches for media buyer 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?

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

Which country has the most media buyer agencies?

The United States leads with 712 companies, followed by India (226) and the United Kingdom (153). Every media buyer agencies list by country and city is linked on this page.

Which city has the most media buyer agencies?

London leads with 57 company records, followed by New York (47) and Istanbul (34).

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 9,178 professional contacts with verified work emails tracked across these 2,824 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.