Company lists · Data refreshed September 2026

Top 25 Internet advertising networks worldwide

RevenueBase identified 4,290 internet advertising networks worldwide as of September 2026 and tracks 60,593 professional contacts across them, including 17,791 with verified work emails. The United States is the largest market and London the largest hub.

This list covers internet advertising networks 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 20, 2026. Country and city lists for internet advertising networks 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 20, 2026 86% judged on-target in blind review
4,290Companies
60,593Contacts tracked
17,791Verified emails
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The 25 largest internet advertising networks worldwide

Ranked by team size
Top 25 of 4,290 internet advertising networks worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to internet advertising networks: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceDubai, United Arab EmiratesHQ checked Sep 20, 20261,001-5,0002,011 contacts →

Partial 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 20, 2026
2Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 20261,001-5,0001,979 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 20, 2026
3Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 20261,001-5,0001,789 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 20, 2026
4Partial evidenceBangalore, IndiaHQ checked Sep 20, 20261,001-5,0001,311 contacts →

Partial evidence

“InMobi Advertising is a leading global programmatic platform specializing in mobile-first solutions that drive customer growth.”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceRedwood City, CA, United StatesHQ checked Sep 20, 2026501-1,0001,297 contacts →

Partial evidence

“PubMatic is the leading AI-powered ad tech company delivering digital advertising performance.”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 20261,001-5,0001,050 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 20, 2026
7Partial evidenceUnited StatesHQ checked Sep 20, 2026501-1,000910 contacts →

Partial evidence

“We’re Magnite (NASDAQ: MGNI), the world’s largest independent sell-side advertising company.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceCopenhagen, DenmarkHQ checked Sep 20, 2026501-1,000847 contacts →

Indirect evidence

“Adform is the most powerful and safe media buying platform in the world.”

Source: RevenueBase Database · checked Sep 20, 2026
9Partial evidenceStockholm, SwedenHQ checked Sep 20, 2026201-500770 contacts →

Partial evidence

“We empower a thriving partner network where everyone wins.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceParis, FranceHQ checked Sep 20, 2026501-1,000705 contacts →

Indirect 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 20, 2026
11Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 2026501-1,000673 contacts →

Partial evidence

“Nexxen is the advertising platform that delivers full-funnel performance powered by unique data and media.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceNew York, United StatesHQ checked Sep 20, 2026501-1,000621 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 20, 2026
13Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 20, 2026501-1,000568 contacts →

Partial 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 20, 2026
14Indirect evidenceChicago, IL, United StatesHQ checked Sep 20, 2026201-500446 contacts →

Indirect 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 20, 2026
15Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 2026501-1,000436 contacts →

Partial 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 20, 2026
16Partial evidenceIrvine, CA, United StatesHQ checked Sep 20, 2026201-500418 contacts →

Partial evidence

“Viant Technology Inc.(NASDAQ: DSP) is a leader in AI-powered programmatic advertising, dedicated to driving innovation in digital marketing.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceSydney, AustraliaHQ checked Sep 20, 2026n/a409 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 20, 2026
18Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 20, 2026201-500393 contacts →

Indirect evidence

“ArabyAds is an ad-tech company that empowers ecommerce marketing.”

Source: RevenueBase Database · checked Sep 20, 2026
19Strong evidenceTehran, IranHQ checked Sep 20, 2026201-500375 contacts →

Strong 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 20, 2026
20Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 20, 2026501-1,000371 contacts →

Indirect evidence

“Admitad is a leading, global provider of innovative performance marketing solutions, headquartered in Dubai, UAE.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidencePetaling Jaya, MalaysiaHQ checked Sep 20, 2026201-500357 contacts →

Indirect evidence

“Innity is a leading online media company in Asia that offers best in class data-driven ad tech solutions that combines creative programmatic, ad-serving, data management, audience…”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceXian, ChinaHQ checked Sep 20, 2026201-500351 contacts →

Indirect evidence

“Yeahmobi is a leading mobile marketing company that helps businesses reach global growth.”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceMumbai, IndiaHQ checked Sep 20, 2026201-500322 contacts →

Partial evidence

“Vertoz (NSE: VERTOZ) is a global AI‑led digital advertising ecosystem, where strategies and execution are engineered for outcomes.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceAustin, TX, United StatesHQ checked Sep 20, 2026201-500319 contacts →

Indirect evidence

“InMarket is the outcome intelligence platform built for marketers who demand results over proxy metrics.”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceHanoi, VietnamHQ checked Sep 20, 2026201-500310 contacts →

Partial evidence

“The Market leadership with 40% of Vietnam online advertising market share and cover 95% of mobile users over the nation.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 4,290 internet advertising networks worldwide

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Internet advertising networks worldwide at a glance

As of Sep 20, 2026
29.4%Verified-email coverage
14.1Average contacts per company
11-50Median size (employees)
2.6%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
1,872
11-50
1,728
51-200
473
201-500
137
501-1,000
39
1,001-5,000
20
5,001-10,000
6
10001+
8

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 internet advertising networks, 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 internet advertising networks are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “internet advertising networks”. 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 internet advertising networks), 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 internet advertising networks, 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, 17,791 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 20, 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.

Internet advertising networks by location

30 lists · largest first

Every Internet advertising networks 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 internet advertising networks, 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 internet advertising networks are there worldwide?

RevenueBase identified 4,290 internet advertising networks 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 internet advertising networks?

The United States leads with 778 companies, followed by India (465) and the United Kingdom (175). Every internet advertising networks list by country and city is linked on this page.

Which city has the most internet advertising networks?

London leads with 112 headquartered companies, followed by New York (106) and Singapore (85).

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 17,791 verified decision-maker contacts tracked across these 4,290 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 20, 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.