Company lists · Data refreshed September 2026

Top 25 Customer engagement marketing firms based in the United States

Name: Customer engagement marketing firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 11,199 companies tracked

RevenueBase identified 11,199 customer engagement marketing firms headquartered in the United States as of September 2026 and tracks 140,443 professional contacts across them, including 40,880 with verified work emails. New York is the largest hub.

This list covers customer engagement marketing firms 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 19, 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 19, 2026 86% judged on-target in blind review

11,199Companies

140,443Contacts tracked

40,880Verified emails

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The 25 largest customer engagement marketing firms based in the United States

Ranked by team size

Top 25 of 11,199 customer engagement marketing firms based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to customer engagement marketing firms: 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	QUAD	Partial evidence	Sussex, WI, United StatesHQ checked Sep 19, 2026	10001+	9,567 contacts →
	Partial evidence “Quad (NYSE: QUAD) is a global marketing experience company that helps brands make direct consumer connections, from household to in-store to online.” Source: RevenueBase Database · checked Sep 19, 2026
2	Merkle	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 19, 2026	10001+	4,731 contacts →
	Indirect evidence “Merkle, a dentsu company, powers the experience economy.” Source: RevenueBase Database · checked Sep 19, 2026
3	MRM	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,627 contacts →
	Partial evidence “MRM is a modern relationship marketing agency that builds enduring brand relationships.” Source: RevenueBase Database · checked Sep 19, 2026
4	Marketing Werks	Strong evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	n/a	2,182 contacts →
	Strong evidence “Marketing Werks has become Product Connections, a fully integrated engagement agency specializing in omnichannel solutions that build relationships between brands and consumers.” Source: RevenueBase Database · checked Sep 19, 2026
5	BRAZE	Strong evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,142 contacts →
	Strong evidence “Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging.™ Braze allows any marketer to collect and take action on any amount of data from…” Source: RevenueBase Database · checked Sep 19, 2026
6	BI Worldwide	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,905 contacts →
	Partial evidence “BI WORLDWIDE is a global engagement agency that uses the principles of behavioral economics to produce measurable business results by designing and delivering solutions that…” Source: RevenueBase Database · checked Sep 19, 2026
7	Razorfish	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,763 contacts →
	Indirect evidence “Hi there!” Source: RevenueBase Database · checked Sep 19, 2026
8	Constant Contact	Partial evidence	Waltham, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,611 contacts →
	Partial evidence “We deliver for small businesses with powerful tools to simplify and amplify digital marketing.” Source: RevenueBase Database · checked Sep 19, 2026
9	Power Digital Marketing	Partial evidence	San Diego, CA, United StatesHQ checked Sep 19, 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 19, 2026
10	Localiq	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,534 contacts →
	Partial evidence “Grow your business with digital marketing powered by AI and local expertise.” Source: RevenueBase Database · checked Sep 19, 2026
11	Hearts & Science	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,359 contacts →
	Indirect evidence “Hearts & Science, an Omnicom Media Group agency, transforms data signals into meaningful connections between brands and consumers that drive exponential growth.” Source: RevenueBase Database · checked Sep 19, 2026
12	Birdeye	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,343 contacts →
	Partial evidence “Birdeye is the #1 Agentic Marketing Platform for Multi-location Brands, purpose-built for multi-location brands.” Source: RevenueBase Database · checked Sep 19, 2026
13	Dialog Direct	Strong evidence	Highland Park, MI, United StatesHQ checked Sep 19, 2026	10001+	1,138 contacts →
	Strong evidence “Dialog Direct helps brands manage and personalize their multichannel, multi-touch customer journeys using data-driven marketing and customer engagement solutions.” Source: RevenueBase Database · checked Sep 19, 2026
14	Demandscience	Partial evidence	Boston, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,087 contacts →
	Partial evidence “With proprietary data and omni-channel activation like events, content, programmatic and chat, we cut through the noise to reach entire buyer groups, driving engagement and impact…” Source: RevenueBase Database · checked Sep 19, 2026
15	Clearlink	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 19, 2026	501-1,000	988 contacts →
	Partial evidence “Clearlink is an award-winning digital marketing, sales conversion, and technology company headquartered in Salt Lake City.” Source: RevenueBase Database · checked Sep 19, 2026
16	Moengage	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	501-1,000	908 contacts →
	Strong evidence “MoEngage is an agentic customer engagement platform for the customer-obsessed marketers and product owners.” Source: RevenueBase Database · checked Sep 19, 2026
17	ITA Group, INC	Indirect evidence	West Des Moines, IA, United StatesHQ checked Sep 19, 2026	501-1,000	868 contacts →
	Indirect evidence “ITA Group helps leading brands around the world take action with confidence, resulting in increased sales, purchases, retention, referrals and alignment.” Source: RevenueBase Database · checked Sep 19, 2026
18	NP Digital	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 19, 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 19, 2026
19	Onemagnify	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 19, 2026	501-1,000	824 contacts →
	Indirect evidence “At OneMagnify, we help transformational brands turn insight into action.” Source: RevenueBase Database · checked Sep 19, 2026
20	Marigold	Partial evidence	Nashville, TN, United StatesHQ checked Sep 19, 2026	201-500	820 contacts →
	Partial evidence “Marigold is a global marketing technology company focused on delivering relationship marketing solutions for growing organizations.” Source: RevenueBase Database · checked Sep 19, 2026
21	Clevertap	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	501-1,000	702 contacts →
	Strong evidence “CleverTap is the leading all-in-one customer engagement platform that helps brands unlock limitless customer lifetime value.” Source: RevenueBase Database · checked Sep 19, 2026
22	On24	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	501-1,000	622 contacts →
	Indirect evidence “ON24, a Cvent company, is on a mission to help businesses bring their go-to-market strategy into the AI era and drive cost-effective revenue growth.” Source: RevenueBase Database · checked Sep 19, 2026
23	CMD	Indirect evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	n/a	604 contacts →
	Indirect evidence “Take command of every opportunity with a partner that gets results.” Source: RevenueBase Database · checked Sep 19, 2026
24	Affinion Group	Partial evidence	Stamford, CT, United StatesHQ checked Sep 19, 2026	1,001-5,000	597 contacts →
	Partial evidence “Affinion enables companies to connect and engage with their customers, creating rewarding relationships and enhancing brand loyalty.” Source: RevenueBase Database · checked Sep 19, 2026
25	Ovative Group	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 19, 2026	501-1,000	577 contacts →
	Partial evidence “Ovative Group is a digital-first media and measurement firm that is transforming the measure of marketing success.” Source: RevenueBase Database · checked Sep 19, 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: customer engagement marketing firms. 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 customer engagement marketing firms.
Partial evidence: Its own public description names part of customer engagement marketing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name customer engagement marketing firms. 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 11,199 customer engagement marketing firms based in the United States

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Customer engagement marketing firms based in the United States at a glance

As of Sep 19, 2026

29.1%Verified-email coverage

12.5Average contacts per company

1-10Median size (employees)

4.8%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

7,437

11-50

2,962

51-200

557

201-500

133

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 11,199 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 customer engagement marketing firms, 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 “customer engagement marketing firms”. 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 customer engagement marketing firms), 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 customer engagement marketing firms, 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, 40,880 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 19, 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.

Customer engagement marketing firms 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 customer engagement marketing firms, 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 customer engagement marketing firms are there based in the United States?

RevenueBase identified 11,199 customer engagement marketing firms 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?

QUAD, headquartered in Sussex, tops this list with the largest team on record.

Which city has the most customer engagement marketing firms?

New York leads with 539 headquartered companies, followed by Los Angeles (333) and Chicago (263).

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 40,880 verified decision-maker contacts tracked across these 11,199 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 19, 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.