Company lists · Data refreshed September 2026

Top 25 Marketing outsourcing companies based in the United States

Name: Marketing outsourcing 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 5, 2026 49,980 companies tracked

RevenueBase identified 49,980 marketing outsourcing companies headquartered in the United States as of September 2026 and tracks 339,765 professional contacts across them, including 92,014 with verified work emails and 113,365 with mobile numbers. New York is the largest hub.

This list covers marketing outsourcing 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 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

49,980Companies

339,765Contacts tracked

92,014Verified emails

113,365Mobile numbers

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The 25 largest marketing outsourcing companies based in the United States

Ranked by team size

Top 25 of 49,980 marketing outsourcing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to marketing outsourcing 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	IPG Mediabrands	Partial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	10001+	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, 2026
2	Digitas North America	Indirect evidence	Boston, MA, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,654 contacts →
	Indirect 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: RevenueBase Database · checked Sep 5, 2026
3	GREY	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	5,001-10,000	2,648 contacts →
	Indirect evidence “Grey’s mission is to create Famously Effective ideas that move people, business, and the world forward-harnessing the power of creativity to solve business problems and deliver…” Source: RevenueBase Database · checked Sep 5, 2026
4	Best Version Media	Partial evidence	Brookfield, WI, United StatesHQ checked Sep 5, 2026	n/a	2,416 contacts →
	Partial evidence “Best Version Media simplifies local marketing by offering small and midsize businesses a complete mix of solutions to keep them top-of-mind, from community magazine ads to digital…” Source: RevenueBase Database · checked Sep 5, 2026
5	Horizon Media	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,368 contacts →
	Indirect evidence “Horizon Media is a leader in driving business-based outcomes for marketers.” Source: RevenueBase Database · checked Sep 5, 2026
6	Omnicom	Partial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	10001+	1,727 contacts →
	Partial evidence “Omnicom is the world’s leading marketing and sales company, built for intelligent growth in the next era.” Source: RevenueBase Database · checked Sep 5, 2026
7	Power Digital Marketing	Partial evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	501-1,000	1,570 contacts →
	Partial evidence “Power Digital is a growth marketing firm fueled by technology and driven by a talented team of consultative marketers, creatives, analysts and technologists.” Source: RevenueBase Database · checked Sep 5, 2026
8	TBC	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 5, 2026	n/a	1,255 contacts →
	Indirect 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, 2026
9	Scorpion	Indirect evidence	Draper, UT, United StatesHQ checked Sep 5, 2026	501-1,000	1,076 contacts →
	Indirect evidence “Scorpion is the leader in helping local businesses succeed by focusing on what truly matters-driving revenue.” Source: RevenueBase Database · checked Sep 5, 2026
10	Archway Marketing Services	Partial evidence	Maple Grove, MN, United StatesHQ checked Sep 5, 2026	1,001-5,000	929 contacts →
	Partial evidence “Archway is the preferred partner in marketing execution for well-known brands.” Source: RevenueBase Database · checked Sep 5, 2026
11	Logical Position	Indirect evidence	Lake Oswego, OR, United StatesHQ checked Sep 5, 2026	501-1,000	899 contacts →
	Indirect evidence “Logical Position (LP) is an Inc.” Source: RevenueBase Database · checked Sep 5, 2026
12	WEBFX	Partial evidence	Harrisburg, PA, United StatesHQ checked Sep 5, 2026	501-1,000	866 contacts →
	Partial evidence “We're here to be your digital marketing growth partner in the AI era.” Source: RevenueBase Database · checked Sep 5, 2026
13	NP Digital	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 5, 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 5, 2026
14	SEO INC	Indirect evidence	Carlsbad, CA, United StatesHQ checked Sep 5, 2026	n/a	825 contacts →
	Indirect evidence “Since its inception in 1997, SEO Inc.” Source: RevenueBase Database · checked Sep 5, 2026
15	Essence	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	1,001-5,000	782 contacts →
	Indirect evidence “Formerly Essence, we are now EssenceMediacom.” Source: RevenueBase Database · checked Sep 5, 2026
16	Allied Global Marketing	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	201-500	750 contacts →
	Partial evidence “In business for over 30 years, Allied has built upon its roots in film advertising and publicity to become a global leader in entertainment, culture, and lifestyle marketing.” Source: RevenueBase Database · checked Sep 5, 2026
17	Anteriad	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	501-1,000	740 contacts →
	Indirect evidence “Data Driven.” Source: RevenueBase Database · checked Sep 5, 2026
18	Abstrakt Marketing Group	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 5, 2026	501-1,000	724 contacts →
	Indirect evidence “We book the qualified meetings that fill your pipeline for any B2B company ready to grow.” Source: RevenueBase Database · checked Sep 5, 2026
19	DONER	Partial evidence	Southfield, MI, United StatesHQ checked Sep 5, 2026	501-1,000	708 contacts →
	Partial evidence “Doner unlocks all the tools of Modern marketing to build lasting connections with every day, Main Street consumers.” Source: RevenueBase Database · checked Sep 5, 2026
20	Team ONE	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	201-500	698 contacts →
	Indirect evidence “Team One was founded with one philosophical focus: to construct brands of elevated aspiration and worth by attracting affluent consumers like never before.” Source: RevenueBase Database · checked Sep 5, 2026
21	SCI	Indirect evidence	Miami, FL, United StatesHQ checked Sep 5, 2026	501-1,000	696 contacts →
	Indirect evidence “SCI was merged and sold to WPP in 2010.” Source: RevenueBase Database · checked Sep 5, 2026
22	Vertis Communications	Indirect evidence	Sussex, WI, United StatesHQ checked Sep 5, 2026	10001+	605 contacts →
	Indirect evidence “Vertis Communications was acquired by Quad/Graphics in January 2013.” Source: RevenueBase Database · checked Sep 5, 2026
23	CMD	Indirect evidence	Portland, OR, United StatesHQ checked Sep 5, 2026	n/a	604 contacts →
	Indirect evidence “Take command of every opportunity with a partner that gets results.” Source: RevenueBase Database · checked Sep 5, 2026
24	Stream Companies	Indirect evidence	Malvern, PA, United StatesHQ checked Sep 5, 2026	501-1,000	572 contacts →
	Indirect 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, 2026
25	SGT	Partial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	201-500	557 contacts →
	Partial evidence “After almost 2 years driving internal demand at one of Omnicom's lead Marketing strategy agencies I have returned to Lead to Market to lead our applied marketing practice.” Source: RevenueBase Database · checked Sep 5, 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: marketing outsourcing 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 marketing outsourcing companies.
Partial evidence: Its own public description names part of marketing outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marketing outsourcing 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 49,980 marketing outsourcing companies based in the United States

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Marketing outsourcing companies based in the United States at a glance

As of Sep 5, 2026

27.1%Verified-email coverage

33.4%Mobile-number coverage

6.8Average contacts per company

1-10Median size (employees)

4.4%Largest-city concentration · New York

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

37,351

11-50

10,555

51-200

1,552

201-500

321

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

85,5870–30

5,51331–60

4761–90

5490–180

813180+

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 marketing outsourcing 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 “marketing outsourcing 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 marketing outsourcing 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 marketing outsourcing 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, 92,014 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.

Marketing outsourcing 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 marketing outsourcing 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 marketing outsourcing companies are there based in the United States?

RevenueBase identified 49,980 marketing outsourcing 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?

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

Which city has the most marketing outsourcing companies?

New York leads with 2181 headquartered companies, followed by Los Angeles (1612) and Miami (1088).

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 92,014 verified decision-maker contacts tracked across these 49,980 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.