Company lists · Data refreshed September 2026

Top 25 Media advertising agencies based in the United States

Name: Media 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 5, 2026 5,532 companies tracked

RevenueBase identified 5,532 media advertising agencies headquartered in the United States as of September 2026 and tracks 84,492 professional contacts across them, including 25,980 with verified work emails and 31,503 with mobile numbers. New York is the largest hub.

This list covers media 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 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

5,532Companies

84,492Contacts tracked

25,980Verified emails

31,503Mobile numbers

Unlock all 5,532 companies Free signup · no credit card · 500 free credits

The 25 largest media advertising agencies based in the United States

Ranked by team size

Top 25 of 5,532 media advertising agencies based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names media 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
1	IPG MediabrandsPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	10001+	4,963
	“IPG Mediabrands is the media and marketing solutions division of Interpublic Group (NYSE: IPG).” Source: company website · checked Sep 5, 2026
2	Omnicom Media GroupPartial evidence	New York, United StatesHQ checked Sep 5, 2026	10001+	3,989
	“Omnicom Media Group (OMG), the media services division of Omnicom Group Inc, delivers transformational experiences for consumers, clients, and talent.” Source: company website · checked Sep 5, 2026
3	Spark FoundryPartial evidence	NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,822
	“As one of the fastest-growing global media agency networks, Spark Foundry is not beholden to legacy.” Source: company website · checked Sep 5, 2026
4	Horizon MediaPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,368
	“Horizon Media is a leader in driving business-based outcomes for marketers.” Source: company website · checked Sep 5, 2026
5	TBCPartial evidence	Baltimore, MD, United StatesHQ checked Sep 5, 2026	n/a	1,255
	“TBC is an independently owned, full-service branding, advertising and strategic communications agency with headquarters in Baltimore, Maryland, USA.” Source: company website · checked Sep 5, 2026
6	MediaoceanPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,050
	“Mediaocean is powering the future of the advertising ecosystem with technology that empowers brands and agencies to deliver impactful omnichannel marketing experiences.” Source: company website · checked Sep 5, 2026
7	Logical PositionIndirect evidence	Lake Oswego, OR, United StatesHQ checked Sep 5, 2026	501-1,000	899
	“Logical Position (LP) is an Inc.” Source: company website · checked Sep 5, 2026
8	Mediahub WorldwidePartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	706
	“Mediahub is an award-winning global media agency and part of Omnicom Media.” Source: company website · checked Sep 5, 2026
9	SCIIndirect evidence	Miami, FL, United StatesHQ checked Sep 5, 2026	501-1,000	696
	“SCI was merged and sold to WPP in 2010.” Source: company website · checked Sep 5, 2026
10	Vertis CommunicationsIndirect evidence	Sussex, WI, United StatesHQ checked Sep 5, 2026	10001+	605
	“Vertis Communications was acquired by Quad/Graphics in January 2013.” Source: company website · checked Sep 5, 2026
11	Stream CompaniesPartial evidence	Malvern, PA, United StatesHQ checked Sep 5, 2026	501-1,000	572
	“Stream Companies is a full service advertising agency that specializes in launching, positioning, and long term management of brands on full service contracts and a…” Source: company website · checked Sep 5, 2026
12	Canvas WorldwidePartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	201-500	571
	“Named one of Ad Age’s 2026 Top 10 Best Places to Work, Canvas Worldwide is an independent media agency that provides innovative marketing solutions for brands looking to challenge…” Source: company website · checked Sep 5, 2026
13	Katz Media GroupPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	567
	“As the nation's largest media representation firm, Katz Media Group delivers local relevance at scale.” Source: company website · checked Sep 5, 2026
14	Icon International, INCPartial evidence	Stamford, CT, United StatesHQ checked Sep 5, 2026	201-500	498
	“ICON International is the largest independent principal-based media buyer in the U.S, placing nearly $2 billion annually on behalf of its clients.” Source: company website · checked Sep 5, 2026
15	TombrasIndirect evidence	Knoxville, TN, United StatesHQ checked Sep 5, 2026	201-500	496
	“Tombras is a 450+ person, full-service agency with a digital mindset.” Source: company website · checked Sep 5, 2026
16	MartinPartial evidence	Richmond, VA, United StatesHQ checked Sep 5, 2026	201-500	482
	“We are a full-service agency with capabilities in advertising, strategic planning, direct response, digital, data analytics, design and branded content.” Source: company website · checked Sep 5, 2026
17	22squaredPartial evidence	Atlanta, GA, United StatesHQ checked Sep 5, 2026	201-500	447
	“For over 100 years, 22squared has helped complex businesses solve their toughest challenges through insight-driven media and creative.” Source: company website · checked Sep 5, 2026
18	ViamediaPartial evidence	Lexington, KY, United StatesHQ checked Sep 5, 2026	201-500	390
	“Viamedia.ai is the nation’s leading independent provider of omnichannel advertising solutions, delivering precision and performance across linear TV, streaming, and digital…” Source: company website · checked Sep 5, 2026
19	LocaledgeStrong evidence	Buffalo, NY, United StatesHQ checked Sep 5, 2026	501-1,000	383
	“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 5, 2026
20	Horizon NextIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	355
	“Horizon Next is one of the industry's most innovative and data-driven marketing organizations and sits at the intersection of three constantly changing landscapes: people, data…” Source: company website · checked Sep 5, 2026
21	MckinneyIndirect evidence	Durham, NC, United StatesHQ checked Sep 5, 2026	201-500	328
	“McKinney is a full-service creative agency that generates unfair attention for brands.” Source: company website · checked Sep 5, 2026
22	BarkleyIndirect evidence	Kansas City, MO, United StatesHQ checked Sep 5, 2026	501-1,000	323
	“This page is being closed.” Source: company website · checked Sep 5, 2026
23	Tattoo ProjectsIndirect evidence	Charlotte, NC, United StatesHQ checked Sep 5, 2026	n/a	323
	“Bending rules.” Source: company website · checked Sep 5, 2026
24	Studio CityIndirect evidence	North Hollywood, CA, United StatesHQ checked Sep 5, 2026	51-200	322
	“31 years.” Source: company website · checked Sep 5, 2026
25	Openmind Part Of WPP MediaPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	51-200	315
	“OPENMIND is a bespoke team within WPP Media, made up of best-in-class digital, offline and integrated media experts who work together for Nestlé.” Source: company website · checked Sep 5, 2026

Showing 25 of 5,532 media advertising agencies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 25,980 reachable decision-makers.

Free signup · no credit card

See all 5,532 companies

Media advertising agencies based in the United States at a glance

As of Sep 5, 2026

1-10Median size (employees)

New YorkLargest hub · 306 HQs

31,503Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

3,579

11-50

1,577

51-200

282

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

24,201

31–60

1,601

61–90

90–180

180+

151

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 media 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: 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: Companies headquartered in the United States whose own description of what they do matches “media 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 media 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. 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, 25,980 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 5, 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.

Media advertising agencies by metro

Frequently asked

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

RevenueBase identified 5,532 media advertising agencies 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?

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

Which city has the most media advertising agencies?

New York leads with 306 headquartered companies, followed by Los Angeles (212) and Chicago (103).

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 25,980 verified decision-maker contacts tracked across these 5,532 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 5,532 media advertising agencies based in the United States. Start with a free account, no credit card.

Get the full list

Related lists

Media advertising agencies by geography

Browse the directory

Browse: Companies home · All United States lists · All Media advertising agencies lists · New lists

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.