Company lists · Data refreshed September 2026

Top 25 Marketplace advertising agencies based in the United States

Name: Marketplace 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 28, 2026 2,018 companies tracked

RevenueBase identified 2,018 marketplace advertising agencies headquartered in the United States as of September 2026 and tracks 24,207 professional contacts across them, including 9,072 with verified work emails. New York is the largest hub.

This list covers marketplace 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 28, 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 28, 2026 86% judged on-target in blind review

2,018Companies

24,207Contacts tracked

9,072Verified emails

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The 25 largest marketplace advertising agencies based in the United States

Ranked by team size

Top 25 of 2,018 marketplace advertising agencies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to marketplace advertising agencies: 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	The Trade Desk	Indirect evidence	Ventura, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,307 contacts →
	Indirect evidence “It's more than just clicks.” Source: RevenueBase Database · checked Sep 28, 2026
2	Stream Companies	Partial evidence	Malvern, PA, United StatesHQ checked Sep 28, 2026	501-1,000	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 28, 2026
3	Quartile	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	468 contacts →
	Indirect evidence “Quartile, the world's largest retail media optimization platform, is a trusted partner for multichannel e-commerce success.” Source: RevenueBase Database · checked Sep 28, 2026
4	Emprendedor	Indirect evidence	Coral Gables, FL, United StatesHQ checked Sep 28, 2026	n/a	394 contacts →
	Indirect evidence “E-commerce - Construye una Marca - Digital Marketing” Source: RevenueBase Database · checked Sep 28, 2026
5	Localedge	Partial evidence	Buffalo, NY, United StatesHQ checked Sep 28, 2026	501-1,000	383 contacts →
	Partial 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 28, 2026
6	Martin Retail Group	Indirect evidence	Birmingham, AL, United StatesHQ checked Sep 28, 2026	201-500	369 contacts →
	Indirect evidence “Martin Retail Group has served the automotive industry for more than 40 years.” Source: RevenueBase Database · checked Sep 28, 2026
7	Barkley	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 28, 2026	501-1,000	323 contacts →
	Indirect evidence “This page is being closed.” Source: RevenueBase Database · checked Sep 28, 2026
8	DBA Marketing Communications	Indirect evidence	Delafield, WI, United StatesHQ checked Sep 28, 2026	n/a	239 contacts →
	Indirect evidence “At DBA Marketing Communications, our day is all about providing you with strategic and creative services that will help you build a bigger and better brand for your company.” Source: RevenueBase Database · checked Sep 28, 2026
9	Podean	Partial evidence	New York, United StatesHQ checked Sep 28, 2026	201-500	207 contacts →
	Partial evidence “Podean is a global, award-winning marketplace marketing agency.” Source: RevenueBase Database · checked Sep 28, 2026
10	Urtasker	Indirect evidence	Brentwood, NY, United StatesHQ checked Sep 28, 2026	51-200	204 contacts →
	Indirect evidence “At Urtasker, our vision is grounded in integrity, honesty, passion, genuine empathy, and professionalism.” Source: RevenueBase Database · checked Sep 28, 2026
11	SMM	Partial evidence	Smithtown, NY, United StatesHQ checked Sep 28, 2026	n/a	204 contacts →
	Partial evidence “A 360º scope advertising and marketing agency headquartered on Long Island, New York, SMM is experienced in business-to-business, consumer, and recruitment advertising and serves…” Source: RevenueBase Database · checked Sep 28, 2026
12	Target Media Partners	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	501-1,000	197 contacts →
	Partial 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: RevenueBase Database · checked Sep 28, 2026
13	Helium 10	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	51-200	178 contacts →
	Partial evidence “Helium 10 is an all-in-one e-commerce platform that helps brands launch, grow, and scale across major marketplaces.” Source: RevenueBase Database · checked Sep 28, 2026
14	LEWIS	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 28, 2026	51-200	155 contacts →
	Indirect evidence “Lewis is a full-service marketing agency with more than 100 employees at offices in Nashville, Tennessee, Birmingham, Alabama, and Mobile, Alabama.” Source: RevenueBase Database · checked Sep 28, 2026
15	Datawrkz	Partial evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	201-500	142 contacts →
	Partial evidence “Your time is yours again with our powerful digital advertising solutions.” Source: RevenueBase Database · checked Sep 28, 2026
16	Mediamax Network	Partial evidence	Thornwood, NY, United StatesHQ checked Sep 28, 2026	51-200	136 contacts →
	Partial evidence “MediaMax provides premium local advertising solutions to help local, regional, and national companies gain exposure and showcase their products in the markets that matter most.” Source: RevenueBase Database · checked Sep 28, 2026
17	LA	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	51-200	124 contacts →
	Partial evidence “LA is a full-service creative advertising agency that combines 360º brand-building expertise with a nuanced understanding of regional and global perspectives.” Source: RevenueBase Database · checked Sep 28, 2026
18	Mediagistic	Partial evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	51-200	119 contacts →
	Partial evidence “What MG Is: Local-at-Scale Marketing Agency for Channel Partners What MG Does: Mediagistic delivers B2C localized marketing and advertising solutions for 2-tier and 3-tier channel…” Source: RevenueBase Database · checked Sep 28, 2026
19	Greensheet Media	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	113 contacts →
	Partial evidence “Our number one goal is to provide personalized service and affordable, effective advertising solutions to build your business.” Source: RevenueBase Database · checked Sep 28, 2026
20	BUY BOX Experts	Indirect evidence	Lehi, UT, United StatesHQ checked Sep 28, 2026	51-200	111 contacts →
	Indirect evidence “Buy Box Experts is a marketing agency for medium to large online sellers, as well as investors of businesses selling on Amazon.” Source: RevenueBase Database · checked Sep 28, 2026
21	Forever Media	Partial evidence	Bridgeville, PA, United StatesHQ checked Sep 28, 2026	201-500	111 contacts →
	Partial evidence “Today, more than ever, you need to build your brand in the marketplace and make sure potential customers know who you are, where you are and what you have to offer.” Source: RevenueBase Database · checked Sep 28, 2026
22	Lyfe Marketing	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	51-200	107 contacts →
	Indirect evidence “We're a social media marketing company in Atlanta who help small businesses increase revenue through strategic online strategies.” Source: RevenueBase Database · checked Sep 28, 2026
23	Godfrey	Indirect evidence	Lancaster, PA, United StatesHQ checked Sep 28, 2026	51-200	103 contacts →
	Indirect evidence “We’re a full-service B2B marketing agency, and we love working with companies that make stuff-really complex stuff like machinery, components and chemicals.” Source: RevenueBase Database · checked Sep 28, 2026
24	Ejam INC	Partial evidence	Newport Beach, CA, United StatesHQ checked Sep 28, 2026	11-50	98 contacts →
	Partial evidence “Ejam is a performance-based online advertising and marketing leader.” Source: RevenueBase Database · checked Sep 28, 2026
25	Cannella Media DTC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	51-200	96 contacts →
	Indirect evidence “Cannella Media: Drive Profitable Response.” Source: RevenueBase Database · checked Sep 28, 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: marketplace 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 marketplace advertising agencies.
Partial evidence: Its own public description names part of marketplace advertising agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marketplace 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 2,018 marketplace advertising agencies based in the United States

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Marketplace advertising agencies based in the United States at a glance

As of Sep 28, 2026

37.5%Verified-email coverage

12.0Average contacts per company

1-10Median size (employees)

5.0%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,238

11-50

623

51-200

114

201-500

501-1,000

1,001-5,000

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 2,018 companies.

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 marketplace 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 “marketplace 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 marketplace 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 marketplace 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, 9,072 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 28, 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.

Marketplace advertising agencies 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 marketplace 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 marketplace advertising agencies are there based in the United States?

RevenueBase identified 2,018 marketplace 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?

The Trade Desk, headquartered in Ventura, tops this list with the largest team on record.

Which city has the most marketplace advertising agencies?

New York leads with 101 headquartered companies, followed by Los Angeles (62) and Dallas (34).

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 9,072 verified decision-maker contacts tracked across these 2,018 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 28, 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.