Company lists · Data refreshed September 2026
Top 25 Media advertising agencies based in the United States
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, its RevenueBase Smart Search rating, 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 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.
The 25 largest media advertising agencies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,963 contacts → | ||||
Partial evidence “IPG Mediabrands is the media and marketing solutions division of Interpublic Group (NYSE: IPG).” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,989 contacts → | ||||
Partial evidence “Omnicom Media Group (OMG), the media services division of Omnicom Group Inc, delivers transformational experiences for consumers, clients, and talent.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,822 contacts → | ||||
Partial evidence “As one of the fastest-growing global media agency networks, Spark Foundry is not beholden to legacy.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,368 contacts → | ||||
Partial evidence “Horizon Media is a leader in driving business-based outcomes for marketers.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,255 contacts → | ||||
Partial evidence “TBC is an independently owned, full-service branding, advertising and strategic communications agency with headquarters in Baltimore, Maryland, USA.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 899 contacts → | ||||
Indirect evidence “Logical Position (LP) is an Inc.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 706 contacts → | ||||
Partial evidence “Mediahub is an award-winning global media agency and part of Omnicom Media.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 696 contacts → | ||||
Indirect evidence “SCI was merged and sold to WPP in 2010.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 605 contacts → | ||||
Indirect evidence “Vertis Communications was acquired by Quad/Graphics in January 2013.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 572 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 571 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 567 contacts → | ||||
Partial evidence “As the nation's largest media representation firm, Katz Media Group delivers local relevance at scale.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 498 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 496 contacts → | ||||
Indirect evidence “Tombras is a 450+ person, full-service agency with a digital mindset.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 482 contacts → | ||||
Partial evidence “We are a full-service agency with capabilities in advertising, strategic planning, direct response, digital, data analytics, design and branded content.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 447 contacts → | ||||
Partial evidence “For over 100 years, 22squared has helped complex businesses solve their toughest challenges through insight-driven media and creative.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 390 contacts → | ||||
Partial evidence “Viamedia.ai is the nation’s leading independent provider of omnichannel advertising solutions, delivering precision and performance across linear TV, streaming, and digital…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 383 contacts → | ||||
Strong 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 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 355 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 328 contacts → | ||||
Indirect evidence “McKinney is a full-service creative agency that generates unfair attention for brands.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 323 contacts → | ||||
Indirect evidence “This page is being closed.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 323 contacts → | ||||
Indirect evidence “Bending rules.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 322 contacts → | ||||
Indirect evidence “31 years.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 315 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
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: media advertising agencies. 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 media advertising agencies.
- Partial evidence
- Its own public description names part of media advertising agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name media advertising agencies. 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 5,532 media advertising agencies based in the United States
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Media advertising agencies based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 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 “media advertising agencies”. 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 media advertising agencies), 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 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 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, 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
- Media advertising agencies in New York306
- Media advertising agencies in Los Angeles212
- Media advertising agencies in Chicago103
- Media advertising agencies in Atlanta94
- Media advertising agencies in Dallas92
- Media advertising agencies in Miami92
- Media advertising agencies in Houston80
- Media advertising agencies in Austin79
- Media advertising agencies in Denver64
- Media advertising agencies in San Diego60
- Media advertising agencies in San Francisco52
- Media advertising agencies in Portland50
- Media advertising agencies in Tampa50
- Media advertising agencies in Las Vegas46
- Media advertising agencies in Charlotte44
- Media advertising agencies in Phoenix40
- Media advertising agencies in Philadelphia36
- Media advertising agencies in San Antonio33
- Media advertising agencies in Fort Lauderdale32
- Media advertising agencies in Seattle32
- Media advertising agencies in Minneapolis31
- Media advertising agencies in Orlando31
- Media advertising agencies in Pittsburgh31
- Media advertising agencies in Scottsdale31
- Media advertising agencies in Boston29
- Media advertising agencies in Washington29
- Media advertising agencies in Columbus26
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 media advertising agencies, 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 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.
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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.
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