Company lists · Data refreshed September 2026

Top 25 Advertising agencies for publishers worldwide

Name: Advertising agencies for publishers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 5,559 companies tracked

RevenueBase identified 5,559 advertising agencies for publishers worldwide as of September 2026 and tracks 76,839 professional contacts across them, including 23,818 with verified work emails. The United States is the largest market and London the largest hub.

This list covers advertising agencies for publishers 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 27, 2026. Country and city lists for advertising agencies for publishers 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 27, 2026 86% judged on-target in blind review

5,559Companies

76,839Contacts tracked

23,818Verified emails

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The 25 largest advertising agencies for publishers worldwide

Ranked by team size

Top 25 of 5,559 advertising agencies for publishers worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to advertising agencies for publishers: 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	media.net	Strong evidence	Dubai, United Arab EmiratesHQ checked Sep 27, 2026	1,001-5,000	2,011 contacts →
	Strong evidence “Media.net is an independent advertising technology platform that helps publishers, advertisers, and agencies achieve measurable outcomes across all formats and mediums.” Source: RevenueBase Database · checked Sep 27, 2026
2	Taboola	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,979 contacts →
	Partial evidence “Taboola empowers businesses to grow through performance advertising technology that goes beyond search and social and delivers measurable outcomes at scale.” Source: RevenueBase Database · checked Sep 27, 2026
3	TEADS	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,789 contacts →
	Partial evidence “Teads Holding Co.(“Teads”)(Nasdaq: TEAD) is a leading omnichannel advertising platform focused on driving outcomes for brand and performance advertisers across screens.” Source: RevenueBase Database · checked Sep 27, 2026
4	Pubmatic	Partial evidence	Redwood City, CA, United StatesHQ checked Sep 27, 2026	501-1,000	1,297 contacts →
	Partial evidence “PubMatic is the leading AI-powered ad tech company delivering digital advertising performance.” Source: RevenueBase Database · checked Sep 27, 2026
5	Freewheel	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,273 contacts →
	Partial evidence “FreeWheel’s TV and video advertising technology is built for today’s ever-evolving multiscreen ecosystem.” Source: RevenueBase Database · checked Sep 27, 2026
6	Mediaocean	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,050 contacts →
	Partial evidence “Mediaocean is powering the future of the advertising ecosystem with technology that empowers brands and agencies to deliver impactful omnichannel marketing experiences.” Source: RevenueBase Database · checked Sep 27, 2026
7	Magnite	Partial evidence	United StatesHQ checked Sep 27, 2026	501-1,000	910 contacts →
	Partial evidence “We’re Magnite (NASDAQ: MGNI), the world’s largest independent sell-side advertising company.” Source: RevenueBase Database · checked Sep 27, 2026
8	Adform	Indirect evidence	Copenhagen, DenmarkHQ checked Sep 27, 2026	501-1,000	847 contacts →
	Indirect evidence “Adform is the most powerful and safe media buying platform in the world.” Source: RevenueBase Database · checked Sep 27, 2026
9	Azerion	Partial evidence	Schiphol-rijk, GermanyHQ checked Sep 27, 2026	1,001-5,000	808 contacts →
	Partial evidence “Founded in 2014, Azerion (EURONEXT: AZRN) is one of Europe’s largest digital advertising and entertainment media platforms.” Source: RevenueBase Database · checked Sep 27, 2026
10	Equativ	Partial evidence	Paris, FranceHQ checked Sep 27, 2026	501-1,000	705 contacts →
	Partial evidence “Equativ is a leading independent media platform that empowers advertisers and publishers to achieve real outcomes across the entire digital ecosystem.” Source: RevenueBase Database · checked Sep 27, 2026
11	Channel Factory	Indirect evidence	City Of Industry, CA, United StatesHQ checked Sep 27, 2026	501-1,000	702 contacts →
	Indirect evidence “Channel Factory is a global technology and data platform that maximizes both performance efficiency and contextual suitability, delivering contextual performance for advertisers…” Source: RevenueBase Database · checked Sep 27, 2026
12	Index Exchange	Partial evidence	Toronto, ON, CanadaHQ checked Sep 27, 2026	501-1,000	671 contacts →
	Partial evidence “Index Exchange is a global advertising supply-side platform enabling media owners to maximize the value of their content on any screen.” Source: RevenueBase Database · checked Sep 27, 2026
13	Innovid	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	640 contacts →
	Indirect evidence “Innovid is the leading independent ad tech platform, empowering marketers to create, deliver, measure, and optimize ad-supported experiences that people love.” Source: RevenueBase Database · checked Sep 27, 2026
14	Perion	Indirect evidence	New York, United StatesHQ checked Sep 27, 2026	501-1,000	621 contacts →
	Indirect evidence “Perion is helping agencies, brands and retailers get better results with their marketing investments by providing advanced technology across all major digital channels.” Source: RevenueBase Database · checked Sep 27, 2026
15	Liftoff Mobile	Indirect evidence	Redwood City, CA, United StatesHQ checked Sep 27, 2026	501-1,000	612 contacts →
	Indirect evidence “Liftoff helps mobile businesses maximize their revenue.” Source: RevenueBase Database · checked Sep 27, 2026
16	MGID	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	501-1,000	568 contacts →
	Strong evidence “MGID is a global advertising platform helping brands and publishers succeed on the open web with performance-driven, AI-powered native solutions.” Source: RevenueBase Database · checked Sep 27, 2026
17	Raptive	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	201-500	525 contacts →
	Indirect evidence “Raptive provides higher revenue through superior ad tech, expert strategy, and best-in-class support.” Source: RevenueBase Database · checked Sep 27, 2026
18	Quantcast	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	501-1,000	491 contacts →
	Indirect evidence “Quantcast is the AI-powered ad platform built for performance marketers.” Source: RevenueBase Database · checked Sep 27, 2026
19	Affinity Global	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	201-500	446 contacts →
	Partial evidence “Affinity is a leading global AdTech company, empowering publishers to maximize revenue and enabling advertisers to reach their ideal audiences.” Source: RevenueBase Database · checked Sep 27, 2026
20	VERVE	Strong evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	436 contacts →
	Strong evidence “Verve is a global leading advertising technology company, connecting advertisers seeking to buy digital ad space with publishers monetizing their content.” Source: RevenueBase Database · checked Sep 27, 2026
21	Francetv Publicité	Indirect evidence	Paris, FranceHQ checked Sep 27, 2026	201-500	411 contacts →
	Indirect evidence “FranceTV Publicité est la régie publicitaire de France Télévisions, le premier groupe audiovisuel français.” Source: RevenueBase Database · checked Sep 27, 2026
22	BIG ADS	Indirect evidence	Sydney, AustraliaHQ checked Sep 27, 2026	n/a	409 contacts →
	Indirect evidence “Big Ads has been providing digital ad-tech solutions for 3 years with great success thanks to the release of Buddy, an ad-tech platform which produces rich media creative tags to…” Source: RevenueBase Database · checked Sep 27, 2026
23	Triplelift	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	201-500	402 contacts →
	Partial evidence “TripleLift is the Creative SSP that transforms digital advertising through creative technology and innovative ad formats.” Source: RevenueBase Database · checked Sep 27, 2026
24	Yektanet یکتانت	Partial evidence	Tehran, IranHQ checked Sep 27, 2026	201-500	375 contacts →
	Partial evidence “YEKTANET is the biggest and most advanced online advertising network in Iran serving over 25 million unique users with 5 billion impressions per month.” Source: RevenueBase Database · checked Sep 27, 2026
25	Admitad	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 27, 2026	501-1,000	371 contacts →
	Indirect evidence “Admitad is a leading, global provider of innovative performance marketing solutions, headquartered in Dubai, UAE.” Source: RevenueBase Database · checked Sep 27, 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: advertising agencies for publishers. 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 advertising agencies for publishers.
Partial evidence: Its own public description names part of advertising agencies for publishers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name advertising agencies for publishers. 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 5,559 advertising agencies for publishers worldwide

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Advertising agencies for publishers worldwide at a glance

As of Sep 27, 2026

31.0%Verified-email coverage

13.8Average contacts per company

11-50Median size (employees)

3.0%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

2,604

11-50

2,179

51-200

546

201-500

146

501-1,000

1,001-5,000

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 advertising agencies for publishers, 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 advertising agencies for publishers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “advertising agencies for publishers”. 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 advertising agencies for publishers), 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 advertising agencies for publishers, 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, 23,818 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 27, 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.

Advertising agencies for publishers by location

35 lists · largest first

Every Advertising agencies for publishers 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 advertising agencies for publishers, 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 advertising agencies for publishers are there worldwide?

RevenueBase identified 5,559 advertising agencies for publishers 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?

media.net, headquartered in Dubai Media City Dubai, tops this list with the largest team on record.

Which country has the most advertising agencies for publishers?

The United States leads with 1,052 companies, followed by India (549) and the United Kingdom (275). Every advertising agencies for publishers list by country and city is linked on this page.

Which city has the most advertising agencies for publishers?

London leads with 166 headquartered companies, followed by New York (158) and Singapore (96).

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 23,818 verified decision-maker contacts tracked across these 5,559 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 27, 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.