Company lists · Data refreshed September 2026

Top 25 Online display advertising companies based in the United States

Name: Online display advertising 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 21, 2026 4,324 companies tracked

RevenueBase identified 4,324 company matches for online display advertising companies associated with the United States as of September 2026 and tracks 51,970 professional contacts across them, including 20,794 with verified work emails. New York is the largest hub.

This list covers company matches for online display advertising companies associated with the United States, 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 21, 2026.

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 21, 2026 How this list was built

4,324Companies

51,970Contacts tracked

20,794Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest online display advertising companies based in the United States

Ranked by team size

Top 25 of 4,324 company matches for online display advertising companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 21, 2026	1,001-5,000	4,307 contacts →
	Exact match “It's more than just clicks.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Taboola	Exact match	New York, NY, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3	TEADS	Exact match	New York, NY, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
4	Pubmatic	Exact match	Redwood City, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
5	Mediaocean	Exact match	New York, NY, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
6	Logical Position	Exact match	Lake Oswego, OR, United StatesHQ recorded Sep 21, 2026	501-1,000	899 contacts →
	Exact match “Logical Position (LP) is an Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	NP Digital	Exact match	San Diego, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	866 contacts →
	Exact match “Neil Patel has been recognized by the Wall Street Journal, Forbes, and the United Nations, to name a few, as one of the most influential and successful marketers and entrepreneurs…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	KARGO	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	843 contacts →
	Exact match “Kargo creates memorable experiences for advertisers that go beyond the first impression to captivate consumer attention.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Innovid	Exact match	New York, NY, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
10	Tombras	Exact match	Knoxville, TN, United StatesHQ recorded Sep 21, 2026	201-500	496 contacts →
	Exact match “Tombras is a 450+ person, full-service agency with a digital mindset.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Quantcast	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
12	Affinity Global	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
13	VERVE	Exact match	New York, NY, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
14	Viant Technology	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
15	Triplelift	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	402 contacts →
	Exact match “TripleLift is the Creative SSP that transforms digital advertising through creative technology and innovative ad formats.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Unified	Exact match	NY, United StatesHQ recorded Sep 21, 2026	201-500	399 contacts →
	Exact match “A best in class team of digital experts leveraging purpose built technology to deliver operational excellence and insights across paid social, programmatic, OTT and digital audio.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Localedge	Exact match	Buffalo, NY, United StatesHQ recorded Sep 21, 2026	501-1,000	383 contacts →
	Exact match “LocalEdge, a Hearst Media Services Company, offers a full suite of online advertising products and services for any size business and budget across the country.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Databeat	Exact match	Princeton, NJ, United StatesHQ recorded Sep 21, 2026	201-500	357 contacts →
	Exact match “At DataBeat, we redefine what's possible in AdTech, simplifying AdTech complexities into actionable strategies that drive revenue.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Inmarket	Exact match	Austin, TX, United StatesHQ recorded Sep 21, 2026	201-500	319 contacts →
	Exact match “InMarket is the outcome intelligence platform built for marketers who demand results over proxy metrics.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Harmelin Media	Exact match	Bala Cynwyd, PA, United StatesHQ recorded Sep 21, 2026	201-500	292 contacts →
	Exact match “Harmelin Media specializes in full-funnel performance media and marketing solutions and has more than 40 years of experience helping clients navigate the rapidly changing…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Marin Software	Exact match	St. Louis, MO, United StatesHQ recorded Sep 21, 2026	201-500	284 contacts →
	Exact match “Marin was acquired by Trilogy / ESW Capital in 2025.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Accel Digital AD Operations	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	251 contacts →
	Exact match “Welcome to Accel-Digital, a leading brand in the Marketing and Advertising industry that offers top-notch assistance with ad operations support services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Admedia	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	201-500	242 contacts →
	Exact match “AdMedia helps Agencies and Brands meet their KPIs and hit their ROI objectives.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Onmedia	Exact match	West Des Moines, IA, United StatesHQ recorded Sep 21, 2026	51-200	223 contacts →
	Exact match “OnMedia utilizes the most advanced technology for targeted digital and TV advertising.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Mediavine	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	213 contacts →
	Exact match “Mediavine powers monetization for independent publishers, delivering the technology, demand infrastructure, and revenue performance that digital businesses need to grow.” Recorded in the RevenueBase company graph · Sep 21, 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 display advertising companies”. 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 4,324 online display advertising companies based in the United States

See the full list, filter by size, metro and specialty, and access 20,794 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Online display advertising companies based in the United States at a glance

As of Sep 21, 2026

40.0%Verified-email coverage

12.0Average contacts per company

1-10Median size (employees)

7.7%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

2,715

11-50

1,214

51-200

278

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 4,324 companies.

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.
What qualifies: Company records associated with the United States whose business descriptions match “online display advertising companies” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 20,794 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 21, 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 display advertising companies by metro

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 display advertising companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many online display advertising companies are there based in the United States?

RevenueBase identified 4,324 company matches for online display advertising companies associated with the United States 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 city has the most online display advertising companies?

New York leads with 334 company records, followed by Los Angeles (161) and Miami (120).

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 20,794 professional contacts with verified work emails tracked across these 4,324 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 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 4,324 online display advertising companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Online display advertising companies by geography

Browse the directory

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.