Company lists · Data refreshed September 2026

Top 25 Online advertising networks worldwide

Name: Online advertising networks worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 5,685 companies tracked

RevenueBase identified 5,685 company matches for online advertising networks worldwide as of September 2026 and tracks 93,430 professional contacts across them, including 29,737 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers company matches for online advertising networks 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 September 20, 2026. Country and city lists for online advertising networks 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 Sep 20, 2026 How this list was built

5,685Companies

93,430Contacts tracked

29,737Verified emails

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The 25 largest online advertising networks worldwide

Ranked by team size

Top 25 of 5,685 company matches for online advertising networks worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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	The Trade Desk	Exact match	Ventura, CA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	4,307 contacts →
	Exact match “It's more than just clicks.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	media.net	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 20, 2026	1,001-5,000	2,011 contacts →
	Exact match “Media.net is an independent advertising technology platform that helps publishers, advertisers, and agencies achieve measurable outcomes across all formats and mediums.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Taboola	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,979 contacts →
	Exact match “Taboola empowers businesses to grow through performance advertising technology that goes beyond search and social and delivers measurable outcomes at scale.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	TEADS	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,789 contacts →
	Exact match “Teads Holding Co.(“Teads”)(Nasdaq: TEAD) is a leading omnichannel advertising platform focused on driving outcomes for brand and performance advertisers across screens.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	Pubmatic	Exact match	Redwood City, CA, United StatesHQ recorded Sep 20, 2026	501-1,000	1,297 contacts →
	Exact match “PubMatic is the leading AI-powered ad tech company delivering digital advertising performance.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	Freewheel	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,273 contacts →
	Exact match “FreeWheel’s TV and video advertising technology is built for today’s ever-evolving multiscreen ecosystem.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	Mediaocean	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,050 contacts →
	Exact match “Mediaocean is powering the future of the advertising ecosystem with technology that empowers brands and agencies to deliver impactful omnichannel marketing experiences.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Magnite	Exact match	United StatesHQ recorded Sep 20, 2026	501-1,000	910 contacts →
	Exact match “We’re Magnite (NASDAQ: MGNI), the world’s largest independent sell-side advertising company.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	Adform	Exact match	Copenhagen, DenmarkHQ recorded Sep 20, 2026	501-1,000	847 contacts →
	Exact match “Adform is the most powerful and safe media buying platform in the world.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Smartly	Exact match	Helsinki, FinlandHQ recorded Sep 20, 2026	501-1,000	827 contacts →
	Exact match “Smartly is the AI-powered advertising technology company transforming ad experiences for brands and their consumers.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Azerion	Exact match	Schiphol-rijk, GermanyHQ recorded Sep 20, 2026	1,001-5,000	808 contacts →
	Exact match “Founded in 2014, Azerion (EURONEXT: AZRN) is one of Europe’s largest digital advertising and entertainment media platforms.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	Tradedoubler	Exact match	Stockholm, SwedenHQ recorded Sep 20, 2026	201-500	770 contacts →
	Exact match “We empower a thriving partner network where everyone wins.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	Equativ	Exact match	Paris, FranceHQ recorded Sep 20, 2026	501-1,000	705 contacts →
	Exact match “Equativ is a leading independent media platform that empowers advertisers and publishers to achieve real outcomes across the entire digital ecosystem.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Nexxen	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	501-1,000	673 contacts →
	Exact match “Nexxen is the advertising platform that delivers full-funnel performance powered by unique data and media.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Innovid	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	501-1,000	640 contacts →
	Exact match “Innovid is the leading independent ad tech platform, empowering marketers to create, deliver, measure, and optimize ad-supported experiences that people love.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	Perion	Exact match	New York, United StatesHQ recorded Sep 20, 2026	501-1,000	621 contacts →
	Exact match “Perion is helping agencies, brands and retailers get better results with their marketing investments by providing advanced technology across all major digital channels.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	MGID	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 20, 2026	501-1,000	568 contacts →
	Exact match “MGID is a global advertising platform helping brands and publishers succeed on the open web with performance-driven, AI-powered native solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Raptive	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	201-500	525 contacts →
	Exact match “Raptive provides higher revenue through superior ad tech, expert strategy, and best-in-class support.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Gumgum	Exact match	Santa Monica, United StatesHQ recorded Sep 20, 2026	501-1,000	522 contacts →
	Exact match “GumGum is The Mindset Company™ transforming advertising.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Quantcast	Exact match	San Francisco, CA, United StatesHQ recorded Sep 20, 2026	501-1,000	491 contacts →
	Exact match “Quantcast is the AI-powered ad platform built for performance marketers.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	Affinity Global	Exact match	Chicago, IL, United StatesHQ recorded Sep 20, 2026	201-500	446 contacts →
	Exact match “Affinity is a leading global AdTech company, empowering publishers to maximize revenue and enabling advertisers to reach their ideal audiences.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	VERVE	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	501-1,000	436 contacts →
	Exact match “Verve is a global leading advertising technology company, connecting advertisers seeking to buy digital ad space with publishers monetizing their content.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23	Viant Technology	Exact match	Irvine, CA, United StatesHQ recorded Sep 20, 2026	201-500	418 contacts →
	Exact match “Viant Technology Inc.(NASDAQ: DSP) is a leader in AI-powered programmatic advertising, dedicated to driving innovation in digital marketing.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	Inmobi	Exact match	SingaporeHQ recorded Sep 20, 2026	1,001-5,000	414 contacts →
	Exact match “Founded in 2007, InMobi is a global consumer technology company that leverages AI to drive growth through innovative consumer-focused digital platforms and end-to-end mobile…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	BIG ADS	Exact match	Sydney, AustraliaHQ recorded Sep 20, 2026	n/a	409 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 20, 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 “online advertising networks”. 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 5,685 online advertising networks worldwide

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Online advertising networks worldwide at a glance

As of Sep 20, 2026

31.8%Verified-email coverage

16.4Average contacts per company

11-50Median size (employees)

3.1%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

2,395

11-50

2,323

51-200

683

201-500

174

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

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 online advertising networks are linked below.
What qualifies: Company records worldwide whose business descriptions match “online advertising networks” 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 29,737 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 September 20, 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.

Online advertising networks by location

37 lists · largest first

Every Online 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 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 “online advertising networks”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many online advertising networks are there worldwide?

RevenueBase identified 5,685 company matches for online advertising networks worldwide as of September 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?

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

Which country has the most online advertising networks?

The United States leads with 1,118 companies, followed by India (576) and the United Kingdom (236). Every online advertising networks list by country and city is linked on this page.

Which city has the most online advertising networks?

New York leads with 175 company records, followed by London (150) and Singapore (121).

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 29,737 professional contacts with verified work emails tracked across these 5,685 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 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 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.