Company lists · Data refreshed September 2026

Top 25 Online display advertising companies based in New York, United States

Name: Online display advertising companies based in New York, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 313 companies tracked

RevenueBase identified 313 online display advertising companies headquartered in New York, United States as of September 2026 and tracks 12,614 professional contacts across them, including 4,938 with verified work emails. New York is the largest hub.

This list covers online display advertising companies headquartered in New York, 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 21, 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 21, 2026 86% judged on-target in blind review

313Companies

12,614Contacts tracked

4,938Verified emails

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The 25 largest online display advertising companies based in New York, United States

Ranked by team size

Top 25 of 313 online display advertising companies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to online display advertising 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	Taboola	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
2	TEADS	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
3	Mediaocean	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
4	KARGO	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
5	Innovid	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
6	VERVE	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
7	Triplelift	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	402 contacts →
	Partial evidence “TripleLift is the Creative SSP that transforms digital advertising through creative technology and innovative ad formats.” Source: RevenueBase Database · checked Sep 21, 2026
8	Accel Digital AD Operations	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	251 contacts →
	Partial evidence “Welcome to Accel-Digital, a leading brand in the Marketing and Advertising industry that offers top-notch assistance with ad operations support services.” Source: RevenueBase Database · checked Sep 21, 2026
9	Mediavine	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	213 contacts →
	Indirect evidence “Mediavine powers monetization for independent publishers, delivering the technology, demand infrastructure, and revenue performance that digital businesses need to grow.” Source: RevenueBase Database · checked Sep 21, 2026
10	Townsquare Ignite	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	199 contacts →
	Partial evidence “Townsquare Ignite is a customer-centric, data-driven technology provider of cross-platform advertising solutions including programmatic, search, marketing and client services.” Source: RevenueBase Database · checked Sep 21, 2026
11	Yahoo DSP	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	186 contacts →
	Indirect evidence “Marketers choose Yahoo DSP to transform diverse and unique data sets into proven results.” Source: RevenueBase Database · checked Sep 21, 2026
12	NEO Ogilvy	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	179 contacts →
	Indirect evidence “Neo@Ogilvy is now Neo Media World.” Source: RevenueBase Database · checked Sep 21, 2026
13	LEMMA	Partial evidence	New York, United StatesHQ checked Sep 21, 2026	51-200	176 contacts →
	Partial evidence “Lemma is a leading full-funnel adtech platform purpose-built to accelerate brand ROI through impactful Out-of-Home (OOH) advertising.” Source: RevenueBase Database · checked Sep 21, 2026
14	Sizmek By Amazon	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	139 contacts →
	Indirect evidence “Sizmek by Amazon provides advertisers and agencies with solutions to create, distribute, measure, and optimize their messaging.” Source: RevenueBase Database · checked Sep 21, 2026
15	Clinch	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	51-200	125 contacts →
	Partial evidence “Clinch is an AI-powered advertising technology company that enables brands and agencies to deliver relevant advertising across all channels more efficiently and effectively.” Source: RevenueBase Database · checked Sep 21, 2026
16	BIG Happy	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	51-200	104 contacts →
	Indirect evidence “Big Happy is the creative-first, performance-powered adtech platform that transforms everyday screens into unforgettable experiences.” Source: RevenueBase Database · checked Sep 21, 2026
17	ID Media	Indirect evidence	New York, United StatesHQ checked Sep 21, 2026	201-500	94 contacts →
	Indirect evidence “ID Media is a performance media company that combines the power of expertise and data to anticipate tomorrow's brand needs today.” Source: RevenueBase Database · checked Sep 21, 2026
18	Padsquad	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	11-50	86 contacts →
	Partial evidence “We infuse creativity and emerging ad tech into immersive, consumer-friendly mobile rich advertising experiences.” Source: RevenueBase Database · checked Sep 21, 2026
19	Vibrant Media	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	51-200	76 contacts →
	Indirect evidence “Vibrant Media, the leaders of contextual marketing, enables brands to deliver digital experiences that are relevant to what people care about in that very moment.” Source: RevenueBase Database · checked Sep 21, 2026
20	Adtheorent	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	73 contacts →
	Partial evidence “AdTheorent (Nasdaq: ADTH) uses advanced machine learning technology and privacy-forward solutions to deliver impactful advertising campaigns for marketers.” Source: RevenueBase Database · checked Sep 21, 2026
21	Undertone By Perion	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	60 contacts →
	Partial evidence “Undertone by Perion (NASDAQ: PERI) creates memorable ad experiences by thoughtfully orchestrating solutions across Display, Video, CTV, and DOOH to drive unmatched brand lift and…” Source: RevenueBase Database · checked Sep 21, 2026
22	Flex Marketing Group	Strong evidence	New York, United StatesHQ checked Sep 21, 2026	11-50	53 contacts →
	Strong evidence “As a leading digital advertising and technology company, FLEX generates high-volume, exceptional-quality traffic and leads for clients looking to acquire new customers online.” Source: RevenueBase Database · checked Sep 21, 2026
23	Socium Media	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	11-50	48 contacts →
	Indirect evidence “Socium Media is an NYC-based, direct response digital marketing agency specializing in Paid Search, Paid Social, Performance Creative, and SEO.” Source: RevenueBase Database · checked Sep 21, 2026
24	A&a Group	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	11-50	48 contacts →
	Indirect evidence “Attentive media buying and effective creative production.” Source: RevenueBase Database · checked Sep 21, 2026
25	Union Square Media Group	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	51-200	46 contacts →
	Partial evidence “Union Square Media is a leading digital advertising agency.” Source: RevenueBase Database · checked Sep 21, 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: online display advertising 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 online display advertising companies.
Partial evidence: Its own public description names part of online display advertising companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name online display advertising 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 313 online display advertising companies based in New York, United States

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Online display advertising companies based in New York, United States at a glance

As of Sep 21, 2026

39.1%Verified-email coverage

40.3Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

129

11-50

109

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 313 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 online display advertising 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 New York, United States whose own description of what they do matches “online display advertising 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 online display advertising 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 online display advertising companies, and records with no verified work email. Companies headquartered outside New York 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, 4,938 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 21, 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.

Online display advertising companies by metro in the United States

Online display advertising companies in New York313
Online display advertising companies in Los Angeles161
Online display advertising companies in Miami120
Online display advertising companies in San Francisco94
Online display advertising companies in Austin88
Online display advertising companies in Chicago72
Online display advertising companies in Sheridan66
Online display advertising companies in Atlanta62
Online display advertising companies in Las Vegas60
Online display advertising companies in San Diego60
Online display advertising companies in Dallas59
Online display advertising companies in Houston58
Online display advertising companies in Denver50
Online display advertising companies in Tampa46
Online display advertising companies in Seattle45
Online display advertising companies in Orlando32
Online display advertising companies in Portland32
Online display advertising companies in Phoenix31
Online display advertising companies in Boston30
Online display advertising companies in Scottsdale30
Online display advertising companies in Minneapolis28
Online display advertising companies in Philadelphia28
Online display advertising companies in Wilmington27
Online display advertising companies in Santa Monica26

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 online display advertising companies, 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 online display advertising companies are there based in New York, United States?

RevenueBase identified 313 online display advertising companies headquartered in New York, 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?

Taboola, headquartered in New York, tops this list with the largest team on record.

Which city has the most online display advertising companies?

New York leads with 313 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 4,938 verified decision-maker contacts tracked across these 313 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 21, 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.