Company lists · Data refreshed September 2026

Top 25 Online marketing systems based in New York, United States

Name: Online marketing systems 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 172 companies tracked

RevenueBase identified 172 online marketing systems headquartered in New York, United States as of September 2026 and tracks 16,126 professional contacts across them, including 7,505 with verified work emails. New York is the largest hub.

This list covers online marketing systems 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

172Companies

16,126Contacts tracked

7,505Verified emails

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The 25 largest online marketing systems based in New York, United States

Ranked by team size

Top 25 of 172 online marketing systems 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 marketing systems: 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	Zeta Global	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,595 contacts →
	Partial evidence “At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing.” Source: RevenueBase Database · checked Sep 21, 2026
2	Taboola	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,979 contacts →
	Indirect 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
3	TEADS	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,789 contacts →
	Indirect 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
4	Localiq	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
5	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
6	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
7	Nexxen	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	501-1,000	673 contacts →
	Indirect evidence “Nexxen is the advertising platform that delivers full-funnel performance powered by unique data and media.” Source: RevenueBase Database · checked Sep 21, 2026
8	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
9	Triplelift	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	402 contacts →
	Indirect evidence “TripleLift is the Creative SSP that transforms digital advertising through creative technology and innovative ad formats.” Source: RevenueBase Database · checked Sep 21, 2026
10	Deltax	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	357 contacts →
	Indirect evidence “DeltaX is an enterprise-grade full-stack cross-channel advertising solution.” Source: RevenueBase Database · checked Sep 21, 2026
11	Outfront Media	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	321 contacts →
	Indirect evidence “We understand that to brands, audiences are everything.” Source: RevenueBase Database · checked Sep 21, 2026
12	Fluent, INC	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	248 contacts →
	Indirect evidence “Fluent, Inc.(NASDAQ: FLNT) is a commerce media solutions provider connecting top-tier brands with highly engaged consumers.” Source: RevenueBase Database · checked Sep 21, 2026
13	XANDR	Indirect evidence	New York, United StatesHQ checked Sep 21, 2026	1,001-5,000	203 contacts →
	Indirect evidence “Xandr, a part of Microsoft Advertising, powers a global marketplace for premium advertising.” Source: RevenueBase Database · checked Sep 21, 2026
14	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
15	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
16	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
17	Clinch	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	51-200	125 contacts →
	Indirect 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
18	Danads	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	109 contacts →
	Indirect evidence “DanAds is the leading global SaaS company empowering businesses of all sizes with an intuitive, scalable, and automated self-service advertising platform that uses AI and machine…” Source: RevenueBase Database · checked Sep 21, 2026
19	Eulerity	Strong evidence	New York, NY, United StatesHQ checked Sep 21, 2026	51-200	105 contacts →
	Strong evidence “Eulerity is the Agentic Marketing Operating System for multi-location brands.” Source: RevenueBase Database · checked Sep 21, 2026
20	Mobilefuse	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	51-200	76 contacts →
	Indirect evidence “MobileFuse is a leading, mobile-first advertising company focused on delivering real-time insights and results to agencies and brands.” Source: RevenueBase Database · checked Sep 21, 2026
21	Showseeker	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	51-200	69 contacts →
	Indirect evidence “ShowSeeker develops cloud-based advertising tools for a faster, more reliable way to manage media proposals and orders.” Source: RevenueBase Database · checked Sep 21, 2026
22	Undertone By Perion	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	60 contacts →
	Indirect 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
23	Placements AI	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	51-200	59 contacts →
	Indirect evidence “Placements.io is the #1 omnichannel management platform for both sellers and buyers of digital advertising.” Source: RevenueBase Database · checked Sep 21, 2026
24	Flex Marketing Group	Partial evidence	New York, United StatesHQ checked Sep 21, 2026	11-50	53 contacts →
	Partial 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
25	Union Square Media Group	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	51-200	46 contacts →
	Indirect 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 marketing systems. 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 marketing systems.
Partial evidence: Its own public description names part of online marketing systems, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name online marketing systems. 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 172 online marketing systems based in New York, United States

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Online marketing systems based in New York, United States at a glance

As of Sep 21, 2026

46.5%Verified-email coverage

93.8Average 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

11-50

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 172 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 marketing systems, 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 marketing systems”. 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 marketing systems), 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 marketing systems, 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, 7,505 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 marketing systems by metro in the United States

Online marketing systems in New York172
Online marketing systems in Los Angeles59
Online marketing systems in Miami54
Online marketing systems in San Francisco54
Online marketing systems in Austin41
Online marketing systems in Sheridan36
Online marketing systems in Chicago34
Online marketing systems in Las Vegas30
Online marketing systems in Tampa29
Online marketing systems in Dallas27

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 marketing systems, 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 marketing systems are there based in New York, United States?

RevenueBase identified 172 online marketing systems 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?

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

Which city has the most online marketing systems?

New York leads with 172 headquartered companies, followed by Los Angeles (59) and Miami (54).

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 7,505 verified decision-maker contacts tracked across these 172 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.