Company lists · Data refreshed September 2026

Top 25 Advertising technology companies based in the United States

Name: Advertising technology companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 7, 2026 2,226 companies tracked

The United States directory lists 2,226 advertising technology companies and includes 83,127 contacts with 33,239 email addresses. Updated September 2026, the list identifies New York as the single most-represented city among the companies.

Advertising technology companies provide software, platforms, data, and services that help businesses plan, buy, deliver, measure, or optimize digital and other paid advertising. This list covers companies that develop or provide advertising technology products or services for ad creation, targeting, buying, delivery, measurement, attribution, or optimization. Ranked by team size, largest first. Data current as of September 7, 2026.

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 7, 2026 86% judged on-target in blind review

2,226Companies

83,127Contacts tracked

33,239Verified emails

27,678Mobile numbers

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The 25 largest advertising technology companies based in the United States

Ranked by team size

Top 25 of 2,226 advertising technology companies based in the United States, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to advertising technology companies: 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	Epsilon	Indirect evidence	Irving, TX, United StatesHQ checked Sep 7, 2026	5,001-10,000	9,953 contacts →
	Indirect evidence “Epsilon is a global leader in data and identity with deep expertise in digital media, clean rooms, customer data platforms, loyalty and marketing services.” Source: RevenueBase Database · checked Sep 7, 2026
2	The Trade Desk	Indirect evidence	Ventura, CA, United StatesHQ checked Sep 7, 2026	1,001-5,000	4,307 contacts →
	Indirect evidence “It's more than just clicks.” Source: RevenueBase Database · checked Sep 7, 2026
3	Clear Channel Outdoor	Partial evidence	New York, NY, United StatesHQ checked Sep 7, 2026	1,001-5,000	2,462 contacts →
	Partial evidence “Clear Channel Outdoor Holdings, Inc.(NYSE: CCO) is at the forefront of driving innovation in the out-of-home advertising industry.” Source: RevenueBase Database · checked Sep 7, 2026
4	Taboola	Strong evidence	New York, NY, United StatesHQ checked Sep 7, 2026	1,001-5,000	1,979 contacts →
	Strong 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 7, 2026
5	TEADS	Partial evidence	New York, NY, United StatesHQ checked Sep 7, 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 7, 2026
6	Doubleverify	Indirect evidence	New York, NY, United StatesHQ checked Sep 7, 2026	501-1,000	1,318 contacts →
	Indirect evidence “DoubleVerify is a leading software platform for digital media measurement and analytics.” Source: RevenueBase Database · checked Sep 7, 2026
7	Pubmatic	Partial evidence	Redwood City, CA, United StatesHQ checked Sep 7, 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 7, 2026
8	Freewheel	Strong evidence	New York, NY, United StatesHQ checked Sep 7, 2026	1,001-5,000	1,273 contacts →
	Strong evidence “FreeWheel’s TV and video advertising technology is built for today’s ever-evolving multiscreen ecosystem.” Source: RevenueBase Database · checked Sep 7, 2026
9	Mediaocean	Strong evidence	New York, NY, United StatesHQ checked Sep 7, 2026	1,001-5,000	1,050 contacts →
	Strong 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 7, 2026
10	Samsung ADS	Partial evidence	New York, NY, United StatesHQ checked Sep 7, 2026	501-1,000	985 contacts →
	Partial evidence “Samsung Ads is Samsung Electronics’ advertising ecosystem, spanning hundreds of millions of smart devices across TV, mobile, desktop, and beyond.” Source: RevenueBase Database · checked Sep 7, 2026
11	Moloco	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 7, 2026	501-1,000	893 contacts →
	Indirect evidence “Moloco’s mission is to be the scaling engine for the internet economy, applying AI to help businesses of all sizes grow.” Source: RevenueBase Database · checked Sep 7, 2026
12	BASIS	Partial evidence	Chicago, IL, United StatesHQ checked Sep 7, 2026	501-1,000	891 contacts →
	Partial evidence “Basis is a global provider of media automation and programmatic advertising software and services for enterprises.” Source: RevenueBase Database · checked Sep 7, 2026
13	KARGO	Indirect evidence	New York, NY, United StatesHQ checked Sep 7, 2026	201-500	843 contacts →
	Indirect evidence “Kargo creates memorable experiences for advertisers that go beyond the first impression to captivate consumer attention.” Source: RevenueBase Database · checked Sep 7, 2026
14	Entravision US Media	Strong evidence	Burbank, CA, United StatesHQ checked Sep 7, 2026	1,001-5,000	810 contacts →
	Strong evidence “Entravision is a media and advertising technology company.” Source: RevenueBase Database · checked Sep 7, 2026
15	DT	Indirect evidence	Austin, TX, United StatesHQ checked Sep 7, 2026	501-1,000	756 contacts →
	Indirect evidence “DT (NASDAQ: APPS) is unifying the mobile experience by connecting advertisers, app owners, and device partners through on-device integrations, direct app partnerships, and…” Source: RevenueBase Database · checked Sep 7, 2026
16	Applovin	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 7, 2026	201-500	733 contacts →
	Indirect evidence “AppLovin helps businesses of any size reach over a billion people who play mobile games every day.” Source: RevenueBase Database · checked Sep 7, 2026
17	MNTN	Partial evidence	Austin (remote), TX, United StatesHQ checked Sep 7, 2026	201-500	707 contacts →
	Partial evidence “MNTN builds advertising software for brands to drive measurable conversions, revenue, site visits and more through the power of television.” Source: RevenueBase Database · checked Sep 7, 2026
18	Seedtag	Partial evidence	New York, NY, United StatesHQ checked Sep 7, 2026	501-1,000	704 contacts →
	Partial evidence “Seedtag is the global leader in Neuro-Contextual advertising.” Source: RevenueBase Database · checked Sep 7, 2026
19	Channel Factory	Partial evidence	City Of Industry, CA, United StatesHQ checked Sep 7, 2026	501-1,000	702 contacts →
	Partial 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 7, 2026
20	simpli.fi	Indirect evidence	Fort Worth, TX, United StatesHQ checked Sep 7, 2026	501-1,000	680 contacts →
	Indirect evidence “Simpli.fi is a real-world media platform that connects digital intent with physical movement, helping brands reach audiences in the right place, at the right moment, to drive…” Source: RevenueBase Database · checked Sep 7, 2026
21	Nexxen	Partial evidence	New York, NY, United StatesHQ checked Sep 7, 2026	501-1,000	673 contacts →
	Partial evidence “Nexxen is the advertising platform that delivers full-funnel performance powered by unique data and media.” Source: RevenueBase Database · checked Sep 7, 2026
22	Innovid	Indirect evidence	New York, NY, United StatesHQ checked Sep 7, 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 7, 2026
23	Liftoff Mobile	Indirect evidence	Redwood City, CA, United StatesHQ checked Sep 7, 2026	501-1,000	612 contacts →
	Indirect evidence “Liftoff helps mobile businesses maximize their revenue.” Source: RevenueBase Database · checked Sep 7, 2026
24	Videoamp	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 7, 2026	201-500	575 contacts →
	Partial evidence “VideoAmp is a software and data company creating a more sophisticated data-driven advertising ecosystem that redefines how media is valued, bought and sold.” Source: RevenueBase Database · checked Sep 7, 2026
25	MGID	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 7, 2026	501-1,000	568 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 7, 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 technology companies. 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 technology companies.
Partial evidence: Its own public description names part of advertising technology companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name advertising technology companies. 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 2,226 advertising technology companies based in the United States

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Advertising technology companies based in the United States at a glance

As of Sep 7, 2026

40.0%Verified-email coverage

33.3%Mobile-number coverage

37.3Average contacts per company

11-50Median size (employees)

15.6%Largest-city concentration · New York

Sep 7, 2026Page data refreshed

Companies by employee count

1-10

952

11-50

795

51-200

316

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

30,7080–30

2,26831–60

2961–90

1690–180

218180+

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 technology companies, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “advertising technology companies”. 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 technology companies), 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 technology companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 33,239 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 7, 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 technology companies by metro

Frequently asked

How many advertising technology companies are in the list?

The list contains 2,226 advertising technology companies based in the United States.

Where are most advertising technology companies located?

New York is the single most-represented city among the companies on the list.

How many contacts and email addresses are included for advertising technology companies?

The list includes 83,127 contacts and 33,239 email addresses for the companies covered.

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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.