Company lists · Data refreshed September 2026

Top 25 Contextual advertising agencies based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 22,126 companies tracked

There are 22,126 contextual advertising agencies headquartered in the United States (RevenueBase, September 2026). RevenueBase tracks 186,610 professional contacts across them, including 52,987 with verified work emails and 57,869 with mobile numbers. New York is the largest hub.

This list covers contextual advertising agencies 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, how directly it supports the match, and when it was last checked. Data refreshed September 1, 2026.

22,126Companies

186,610Contacts tracked

52,987Verified emails

57,869Mobile numbers

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The 25 largest contextual advertising agencies based in the United States

Ranked by team size

Top 25 of 22,126 contextual advertising agencies based in the United States, ranked by team size, largest first. Data refreshed Sep 1, 2026. Evidence rates how directly each company's own description names contextual advertising agencies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts	Verified emails
1	HIBUIndirect evidence “Hibu is a leading provider of technology-driven, integrated digital marketing solutions for America’s local businesses, trusted by tens of thousands of local business owners.” Source: company website · checked Sep 1, 2026	Cedar Rapids, IA, United States	1,001-5,000	4,480	823
2	Digitas North AmericaIndirect evidence “Digitas is the Networked Experience Agency, built on the vision that we create magnetic experiences that earn the right for brands to exist in human networks.” Source: company website · checked Sep 1, 2026	Boston, MA, United States	1,001-5,000	2,692	966
3	PublicisIndirect evidence “You can either adapt to change, ignore it or lead it.” Source: company website · checked Sep 1, 2026	San Francisco, CA, United States	1,001-5,000	2,551	106
4	Horizon MediaIndirect evidence “Horizon Media is a leader in driving business-based outcomes for marketers.” Source: company website · checked Sep 1, 2026	Los Angeles, CA, United States	1,001-5,000	2,354	1,588
5	RazorfishIndirect evidence “Hi there!” Source: company website · checked Sep 1, 2026	New York, NY, United States	1,001-5,000	1,799	1,066
6	LocaliqIndirect evidence “Grow your business with digital marketing powered by AI and local expertise.” Source: company website · checked Sep 1, 2026	New York, NY, United States	1,001-5,000	1,541	581
7	Hearts & ScienceIndirect evidence “Hearts & Science, an Omnicom Media Group agency, transforms data signals into meaningful connections between brands and consumers that drive exponential growth.” Source: company website · checked Sep 1, 2026	New York, NY, United States	1,001-5,000	1,401	691
8	ScorpionIndirect evidence “Scorpion is the leader in helping local businesses succeed by focusing on what truly matters-driving revenue.” Source: company website · checked Sep 1, 2026	Draper, UT, United States	501-1,000	1,089	620
9	CenterfieldIndirect evidence “Super-powered customer acquisition.” Source: company website · checked Sep 1, 2026	Los Angeles, CA, United States	1,001-5,000	1,057	349
10	BrainlabsIndirect evidence “Brainlabs is an independent, AI-native media agency built to grow client revenue and prove the impact of every dollar spent on media.” Source: company website · checked Sep 1, 2026	New York, NY, United States	1,001-5,000	1,033	486
11	Logical PositionIndirect evidence “Logical Position (LP) is an Inc.” Source: company website · checked Sep 1, 2026	Lake Oswego, OR, United States	501-1,000	899	674
12	WEBFXIndirect evidence “We're here to be your digital marketing growth partner in the AI era.” Source: company website · checked Sep 1, 2026	Harrisburg, PA, United States	501-1,000	874	427
13	simpli.fiIndirect evidence “Simpli.fi provides marketing technologies, solutions, and workflow automation for advertisers and agencies of all sizes.” Source: company website · checked Sep 1, 2026	Fort Worth, TX, United States	501-1,000	677	470
14	PerionIndirect evidence “Perion is helping agencies, brands and retailers get better results with their marketing investments by providing advanced technology across all major digital channels.” Source: company website · checked Sep 1, 2026	New York, NY, United States	501-1,000	613	355
15	Vertis CommunicationsIndirect evidence “Vertis Communications was acquired by Quad/Graphics in January 2013.” Source: company website · checked Sep 1, 2026	Sussex, WI, United States	10001+	605	28
16	AmsiveIndirect evidence “Amsive is a data-driven performance marketing agency that enhances marketing ROI through innovative customer acquisition and engagement solutions.” Source: company website · checked Sep 1, 2026	Greenville, SC, United States	501-1,000	497	298
17	QuantcastIndirect evidence “Quantcast is the AI-powered ad platform built for performance marketers.” Source: company website · checked Sep 1, 2026	Seattle, WA, United States	501-1,000	496	282
18	LocaledgePartial 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: company website · checked Sep 1, 2026	Buffalo, NY, United States	501-1,000	386	43
19	Reprise DigitalIndirect evidence “We are now KINESSO.” Source: company website · checked Sep 1, 2026	Los Angeles, CA, United States	1,001-5,000	371	28
20	AdsrolePartial evidence “AdsRole is a results-driven digital marketing company that helps businesses grow through smart advertising and proven growth strategies.” Source: company website · checked Sep 1, 2026	Houston, TX, United States	501-1,000	257	1
21	ISGIndirect evidence “ISG is a dynamic, performance-propelled marketing partner to some of the world’s biggest brands, obsessed with performance and maximizing ROI.” Source: company website · checked Sep 1, 2026	Boca Raton, FL, United States	501-1,000	200	45
22	ContinuumglobalIndirect evidence “Founded in 2009, ContinuumGlobal helps leading brands to hyper-personalize their marketing at scale.” Source: company website · checked Sep 1, 2026	Menlo Park, CA, United States	501-1,000	199	103
23	Target Media PartnersPartial evidence “Target Media Partners (TMP) is dedicated to helping auto dealerships and other SMBs grow their business through our mix of digital advertising solutions, and we are the only media…” Source: company website · checked Sep 1, 2026	Los Angeles, CA, United States	501-1,000	197	6
24	NEO OgilvyIndirect evidence “Neo@Ogilvy is now Neo Media World.” Source: company website · checked Sep 1, 2026	New York, NY, United States	1,001-5,000	180	12
25	MADUPIndirect evidence “MADUP is an AI-driven marketing company that creates business impact by combining performance-centered strategies, creative execution, and AI technological capabilities across all…” Source: company website · checked Sep 1, 2026	Newyork, United States	501-1,000	153	4

Showing 25 of 22,126 contextual advertising agencies based in the United States

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Contextual advertising agencies based in the United States at a glance

As of Sep 1, 2026

1-10Median size (employees)

New YorkLargest hub · 1077 HQs

57,869Contacts with mobile numbers

Sep 1, 2026Data refreshed

Companies by employee count

1-10

15,243

11-50

5,564

51-200

969

201-500

204

501-1,000

1,001-5,000

10001+

Contextual advertising agencies by metro

Metro	Companies
Contextual advertising agencies in New York	1077
Contextual advertising agencies in Los Angeles	659
Contextual advertising agencies in Miami	556
Contextual advertising agencies in Houston	396
Contextual advertising agencies in Austin	371
Contextual advertising agencies in Atlanta	369
Contextual advertising agencies in Chicago	366

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 contextual advertising agencies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “contextual advertising agencies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among contextual advertising agencies, 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 an evidence rating so you can judge each match yourself.
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, 52,987 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 1, 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.

Frequently asked

How many contextual advertising agencies are there based in the United States?

There are 22,126 contextual advertising agencies headquartered in the United States as of September 2026 (RevenueBase).

What is the largest company on this list?

HIBU, headquartered in Cedar Rapids, tops this list with the largest team on record.

Which city has the most contextual advertising agencies?

New York leads with 1077 headquartered companies, followed by Los Angeles (659) and Miami (556).

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 52,987 verified decision-maker contacts tracked across these 22,126 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 1, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.