Company lists · Data refreshed November 2026

Top 25 Ad agencies based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 14,588 companies tracked

RevenueBase identified 14,588 company matches for ad agencies associated with the United States as of November 2026 and tracks 244,011 professional contacts across them, including 67,086 with verified work emails. New York is the largest hub.

This list covers company matches for ad agencies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

14,588Companies

244,011Contacts tracked

67,086Verified emails

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The 25 largest ad agencies based in the United States

Ranked by team size

Top 25 of 14,588 company matches for ad agencies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	LEO Burnett	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	5,001-10,000	5,785 contacts →
	Exact match “Leo Burnett is a communications agency powered by its HumanKind operating system, with the belief that creativity, data and technology work together to transform human behavior…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Starcom	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	5,001-10,000	5,745 contacts →
	Exact match “With a history that dates back over 80 years, Starcom is a global communications planning and media leader.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	IPG Mediabrands	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	4,396 contacts →
	Exact match “IPG Mediabrands is the media and marketing solutions division of Interpublic Group (NYSE: IPG).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Initiative	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,042 contacts →
	Exact match “Initiative unlocks business growth for the world’s most ambitious brands.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Spark Foundry	Exact match	NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,019 contacts →
	Exact match “As one of the fastest-growing global media agency networks, Spark Foundry is not beholden to legacy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Mccann	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	2,939 contacts →
	Exact match “We build enduring brands that move people and markets through the radical creativity of Truth Well Told™.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Digitas North America	Exact match	Boston, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,860 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Publicis	Exact match	New York, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,785 contacts →
	Exact match “You can either adapt to change, ignore it or lead it.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Omnicom	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	2,762 contacts →
	Exact match “Omnicom is the world’s leading marketing and sales company, built for intelligent growth in the next era.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Mccann Worldgroup	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	2,664 contacts →
	Exact match “McCann Worldgroup, part of the Interpublic Group (NYSE: IPG), is the irrefutable leader in the business of creativity.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Horizon Media	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,506 contacts →
	Exact match “Horizon Media is a leader in driving business-based outcomes for marketers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Omnicom Media Group	Exact match	New York, United StatesHQ recorded Nov 6, 2026	10001+	2,447 contacts →
	Exact match “Omnicom Media Group (OMG), the media services division of Omnicom Group Inc, delivers transformational experiences for consumers, clients, and talent.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Wieden Kennedy	Exact match	Portland, OR, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,752 contacts →
	Exact match “Wieden+Kennedy is an independent, global creative company that has built and transformed some of the world’s most well-known, exciting brands for over forty years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Young & Rubicam	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	1,743 contacts →
	Exact match “Y&R is a leading global marketing communications company, with more than 189 offices in 90+ countries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Bbdo Worldwide	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,655 contacts →
	Exact match “Do Big Things” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Vaynermedia	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,509 contacts →
	Exact match “VaynerMedia is a contemporary global creative and media agency with an expertise in driving relevance for clients and delivering impactful business results.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Tbwa Worldwide	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	1,337 contacts →
	Exact match “TBWA is The Disruption Company®.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	TBC	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	n/a	1,328 contacts →
	Exact match “TBC is an independently owned, full-service branding, advertising and strategic communications agency with headquarters in Baltimore, Maryland, USA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Tinuiti	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,260 contacts →
	Exact match “Tinuiti is a media agency that not only builds brands, but architects business outcomes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Laundry	Exact match	Los Angeles, CA, United StatesHQ recorded Nov 6, 2026	n/a	1,163 contacts →
	Exact match “Artists.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Mediaocean	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,111 contacts →
	Exact match “Mediaocean is powering the future of the advertising ecosystem with technology that empowers brands and agencies to deliver impactful omnichannel marketing experiences.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	RPA	Exact match	Santa Monica, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,058 contacts →
	Exact match “An ad agency who believes in Respect and Results” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	XR Extreme Reach	Exact match	Hudson Yards, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,014 contacts →
	Exact match “XR Extreme Reach is the leading platform for managing advertising operations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Nike Communications, INC	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	n/a	960 contacts →
	Exact match “We are a full-service communications agency behind some of the world’s most revered and iconic brands.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	160over90	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	856 contacts →
	Exact match “160over90 is an award-winning global marketing agency which forges stronger human connections and creates shared moments where people feel something real.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “ad agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 14,588 ad agencies based in the United States

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Ad agencies based in the United States at a glance

As of Nov 6, 2026

27.5%Verified-email coverage

16.7Average contacts per company

1-10Median size (employees)

7.8%Largest-city concentration · New York

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

9,290

11-50

4,223

51-200

809

201-500

144

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 14,588 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with the United States whose business descriptions match “ad agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 67,086 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Ad agencies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “ad agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ad agencies are there based in the United States?

RevenueBase identified 14,588 company matches for ad agencies associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

LEO Burnett tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most ad agencies?

New York leads with 1135 company records, followed by Los Angeles (732) and Miami (352).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 67,086 professional contacts with verified work emails tracked across these 14,588 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 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.