Company lists · Data refreshed September 2026

Top 25 Retargeting marketing companies based in the United States

Name: Retargeting marketing 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 1,798 companies tracked

RevenueBase identified 1,798 retargeting marketing companies headquartered in the United States as of September 2026 and tracks 19,410 professional contacts across them, including 6,588 with verified work emails. New York is the largest hub.

This list covers retargeting marketing companies 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 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

1,798Companies

19,410Contacts tracked

6,588Verified emails

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The 25 largest retargeting marketing companies based in the United States

Ranked by team size

Top 25 of 1,798 retargeting marketing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to retargeting marketing 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	NP Digital	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	866 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
2	simpli.fi	Indirect evidence	Fort Worth, TX, United StatesHQ checked Sep 21, 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 21, 2026
3	Quantcast	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	501-1,000	491 contacts →
	Indirect evidence “Quantcast is the AI-powered ad platform built for performance marketers.” Source: RevenueBase Database · checked Sep 21, 2026
4	Affinity Global	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 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 21, 2026
5	Viant Technology	Partial evidence	Irvine, CA, United StatesHQ checked Sep 21, 2026	201-500	418 contacts →
	Partial 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 21, 2026
6	Unified	Indirect evidence	NY, United StatesHQ checked Sep 21, 2026	201-500	399 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
7	Localedge	Indirect evidence	Buffalo, NY, United StatesHQ checked Sep 21, 2026	501-1,000	383 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
8	Marin Software	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 21, 2026	201-500	284 contacts →
	Indirect evidence “Marin was acquired by Trilogy / ESW Capital in 2025.” Source: RevenueBase Database · checked Sep 21, 2026
9	Roundel	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 21, 2026	201-500	273 contacts →
	Indirect evidence “Designed for better relationships.” Source: RevenueBase Database · checked Sep 21, 2026
10	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
11	3dot14	Indirect evidence	New York, United StatesHQ checked Sep 21, 2026	51-200	221 contacts →
	Indirect evidence “At 3.14, we create an impact on the ad-tech sphere quarter-mile at a time, through Machine learning, Artificial Intelligence and extensive re-targeting, acting as a wagon to…” Source: RevenueBase Database · checked Sep 21, 2026
12	Elocal	Indirect evidence	Conshohocken, PA, United StatesHQ checked Sep 21, 2026	51-200	204 contacts →
	Indirect evidence “eLocal, part of HomeServe Plc, global leader in the home services industry, is a fast-growing and highly profitable national leader in pay-for-performance digital advertising.” Source: RevenueBase Database · checked Sep 21, 2026
13	Connexity, INC	Partial evidence	Santa Monica, CA, United StatesHQ checked Sep 21, 2026	201-500	204 contacts →
	Partial evidence “Connexity, a Taboola company is a performance-marketing technology company whose core purpose is to help online retailers find new customers and drive sales at a cost that meets…” 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	JIVOX	Partial evidence	San Mateo, CA, United StatesHQ checked Sep 21, 2026	51-200	167 contacts →
	Partial evidence “Jivox is transforming the way the world experiences digital marketing.” Source: RevenueBase Database · checked Sep 21, 2026
17	Delve Deeper	Indirect evidence	Boulder, CO, United StatesHQ checked Sep 21, 2026	51-200	156 contacts →
	Indirect evidence “Delve Deeper is an independent performance media agency on a mission to create exceptional value for brands through our innovative approach to applying technology and data in…” Source: RevenueBase Database · checked Sep 21, 2026
18	What IF Media Group	Partial evidence	Fort Lee, NJ, United StatesHQ checked Sep 21, 2026	51-200	153 contacts →
	Partial evidence “What If Media Group is an award-winning performance marketing company that enables the world’s leading brands to acquire valuable new customers at scale.” Source: RevenueBase Database · checked Sep 21, 2026
19	EL Toro IP Targeting	Partial evidence	Louisville, KY, United StatesHQ checked Sep 21, 2026	51-200	147 contacts →
	Partial evidence “El Toro is a cutting-edge digital marketing company specializing in hyper-targeted audience and marketing solutions.” Source: RevenueBase Database · checked Sep 21, 2026
20	Adtaxi	Partial evidence	Denver, CO, United StatesHQ checked Sep 21, 2026	51-200	143 contacts →
	Partial evidence “Adtaxi is a client-centric digital organization that brings scale, precision, and sophistication to digital marketing.” Source: RevenueBase Database · checked Sep 21, 2026
21	Datawrkz	Indirect evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	201-500	142 contacts →
	Indirect evidence “Your time is yours again with our powerful digital advertising solutions.” Source: RevenueBase Database · checked Sep 21, 2026
22	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
23	AARKI	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 21, 2026	51-200	137 contacts →
	Indirect evidence “Aarki helps brands grow and re-engage their mobile users, using machine learning (AI), big data, and engaging creative.” Source: RevenueBase Database · checked Sep 21, 2026
24	Conversion Logix	Indirect evidence	Bothell, WA, United StatesHQ checked Sep 21, 2026	51-200	134 contacts →
	Indirect evidence “Conversion Logix is a full-service digital advertising and software solutions agency with over a decade of proven results.” Source: RevenueBase Database · checked Sep 21, 2026
25	Exponential	Indirect evidence	Emeryville, CA, United StatesHQ checked Sep 21, 2026	501-1,000	131 contacts →
	Indirect evidence “Exponential Interactive delivers innovative advertising experiences that transform the way brands interact with audiences across desktop and mobile.” 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: retargeting marketing 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 retargeting marketing companies.
Partial evidence: Its own public description names part of retargeting marketing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name retargeting marketing 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 1,798 retargeting marketing companies based in the United States

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Retargeting marketing companies based in the United States at a glance

As of Sep 21, 2026

33.9%Verified-email coverage

10.8Average contacts per company

1-10Median size (employees)

6.1%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

1,139

11-50

483

51-200

119

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 1,798 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 retargeting marketing 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 “retargeting marketing 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 retargeting marketing 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 retargeting marketing 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, 6,588 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.

Retargeting marketing companies 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 retargeting marketing 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 retargeting marketing companies are there based in the United States?

RevenueBase identified 1,798 retargeting marketing companies 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?

NP Digital, headquartered in San Diego, tops this list with the largest team on record.

Which city has the most retargeting marketing companies?

New York leads with 110 headquartered companies, followed by Los Angeles (57) and San Francisco (46).

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 6,588 verified decision-maker contacts tracked across these 1,798 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.