Company lists · Data refreshed September 2026

Top 25 AI advertising platforms based in the United States

Name: AI advertising platforms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 1,821 companies tracked

RevenueBase identified 1,821 AI advertising platforms headquartered in the United States as of September 2026 and tracks 53,601 professional contacts across them, including 24,035 with verified work emails. New York is the largest hub.

This list covers AI advertising platforms headquartered in the United States, 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.

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

1,821Companies

53,601Contacts tracked

24,035Verified emails

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The 25 largest AI advertising platforms based in the United States

Ranked by team size

Top 25 of 1,821 AI advertising platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to AI advertising platforms: 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	The Trade Desk	Indirect evidence	Ventura, CA, United StatesHQ checked Sep 27, 2026	1,001-5,000	4,307 contacts →
	Indirect evidence “It's more than just clicks.” Source: RevenueBase Database · checked Sep 27, 2026
2	Zeta Global	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,595 contacts →
	Indirect evidence “At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing.” Source: RevenueBase Database · checked Sep 27, 2026
3	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
4	TEADS	Strong evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,789 contacts →
	Strong 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
5	Localiq	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,534 contacts →
	Partial evidence “Grow your business with digital marketing powered by AI and local expertise.” Source: RevenueBase Database · checked Sep 27, 2026
6	Pubmatic	Strong evidence	Redwood City, CA, United StatesHQ checked Sep 27, 2026	501-1,000	1,297 contacts →
	Strong evidence “PubMatic is the leading AI-powered ad tech company delivering digital advertising performance.” Source: RevenueBase Database · checked Sep 27, 2026
7	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
8	Moloco	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 27, 2026	501-1,000	893 contacts →
	Partial 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 27, 2026
9	BASIS	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 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 27, 2026
10	KARGO	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 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 27, 2026
11	DT	Indirect evidence	Austin, TX, United StatesHQ checked Sep 27, 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 27, 2026
12	Applovin	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 27, 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 27, 2026
13	MNTN	Partial evidence	Austin (remote), TX, United StatesHQ checked Sep 27, 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 27, 2026
14	Seedtag	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	704 contacts →
	Partial evidence “Seedtag is the global leader in Neuro-Contextual advertising.” Source: RevenueBase Database · checked Sep 27, 2026
15	simpli.fi	Partial evidence	Fort Worth, TX, United StatesHQ checked Sep 27, 2026	501-1,000	680 contacts →
	Partial 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 27, 2026
16	Nexxen	Strong evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	673 contacts →
	Strong evidence “Nexxen is the advertising platform that delivers full-funnel performance powered by unique data and media.” Source: RevenueBase Database · checked Sep 27, 2026
17	Innovid	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	640 contacts →
	Partial 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
18	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
19	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
20	Wunderkind	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	521 contacts →
	Partial evidence “Wunderkind is pioneering a new category of AI agentic marketing decisioning, where identity meets AI to drive scalable performance across channel.” Source: RevenueBase Database · checked Sep 27, 2026
21	Quantcast	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	501-1,000	491 contacts →
	Strong evidence “Quantcast is the AI-powered ad platform built for performance marketers.” Source: RevenueBase Database · checked Sep 27, 2026
22	Affinity Global	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	201-500	446 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 27, 2026
23	VERVE	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	436 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 27, 2026
24	PIXIS	Strong evidence	CA, United StatesHQ checked Sep 27, 2026	201-500	424 contacts →
	Strong evidence “Pixis is a complete, AI-powered advertising solution helping consumer brands improve ad performance and streamline workflows.” Source: RevenueBase Database · checked Sep 27, 2026
25	Viant Technology	Strong evidence	Irvine, CA, United StatesHQ checked Sep 27, 2026	201-500	418 contacts →
	Strong 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 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: AI advertising platforms. 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 AI advertising platforms.
Partial evidence: Its own public description names part of AI advertising platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name AI advertising platforms. 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 1,821 AI advertising platforms based in the United States

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AI advertising platforms based in the United States at a glance

As of Sep 27, 2026

44.8%Verified-email coverage

29.4Average contacts per company

11-50Median size (employees)

14.1%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

849

11-50

635

51-200

227

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,821 companies.

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 AI advertising platforms, 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 “AI advertising platforms”. 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 AI advertising platforms), 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 AI advertising platforms, 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, 24,035 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.

AI advertising platforms by metro

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 AI advertising platforms, 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 AI advertising platforms are there based in the United States?

RevenueBase identified 1,821 AI advertising platforms headquartered in the United States 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?

The Trade Desk, headquartered in Ventura, tops this list with the largest team on record.

Which city has the most AI advertising platforms?

New York leads with 257 headquartered companies, followed by San Francisco (129) and Los Angeles (79).

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 24,035 verified decision-maker contacts tracked across these 1,821 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.