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Company lists · Data refreshed September 2026

Top 25 Marketing technology consulting firms based in the United States

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 22,585 companies tracked

RevenueBase identified 22,585 marketing technology consulting firms headquartered in the United States as of September 2026 and tracks 207,700 professional contacts across them, including 64,861 with verified work emails and 63,485 with mobile numbers. New York is the largest hub.

This list covers marketing technology consulting 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, how directly it supports the match, 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 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
22,585Companies
207,700Contacts tracked
64,861Verified emails
63,485Mobile numbers
Unlock all 22,585 companies Free signup · no credit card · 500 free credits

The 25 largest marketing technology consulting firms based in the United States

Ranked by team size
Top 25 of 22,585 marketing technology consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names marketing technology consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
EpsilonPartial evidence
Irving, TX, United StatesHQ checked Sep 5, 20265,001-10,0009,953

“Epsilon is a global leader in data and identity with deep expertise in digital media, clean rooms, customer data platforms, loyalty and marketing services.”

Source: company website · checked Sep 5, 2026
2
ZoominfoIndirect evidence
Vancouver, WA, United StatesHQ checked Sep 5, 20261,001-5,0004,029

“ZoomInfo (NASDAQ: GTM) is the go-to-market platform that helps businesses find, acquire and grow their customers.”

Source: company website · checked Sep 5, 2026
3
KinessoStrong evidence
New York, NY, United StatesHQ checked Sep 5, 20265,001-10,0002,860

“KINESSO is the technology-driven performance marketing agency within Omnicom Media that provides actionable growth for both agency partners and clients.”

Source: company website · checked Sep 5, 2026
4
KlaviyoIndirect evidence
Boston, MA, United StatesHQ checked Sep 5, 20261,001-5,0002,789

“Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.”

Source: company website · checked Sep 5, 2026
5
Zeta GlobalPartial evidence
New York, NY, United StatesHQ checked Sep 5, 20261,001-5,0002,595

“At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing.”

Source: company website · checked Sep 5, 2026
6
CrederaStrong evidence
Addison, TX, United StatesHQ checked Sep 5, 20261,001-5,0001,842

“Credera empowers the world’s leading brands to navigate the complexities of data, technology, and marketing.”

Source: company website · checked Sep 5, 2026
7
MCAStrong evidence
Westport, CT, United StatesHQ checked Sep 5, 2026n/a1,650

“MCAworks is a strategic marketing consulting firm passionately dedicated to helping our clients accelerate and sustain business growth.”

Source: company website · checked Sep 5, 2026
8
Power Digital MarketingStrong evidence
San Diego, CA, United StatesHQ checked Sep 5, 2026501-1,0001,570

“Power Digital is a growth marketing firm fueled by technology and driven by a talented team of consultative marketers, creatives, analysts and technologists.”

Source: company website · checked Sep 5, 2026
9
LocaliqPartial evidence
New York, NY, United StatesHQ checked Sep 5, 20261,001-5,0001,534

“Grow your business with digital marketing powered by AI and local expertise.”

Source: company website · checked Sep 5, 2026
10
Grazitti InteractiveIndirect evidence
Mountain View, CA, United StatesHQ checked Sep 5, 20261,001-5,0001,506

“Grazitti Interactive is a digital innovation leader with offices in India, USA, Australia, and Singapore.”

Source: company website · checked Sep 5, 2026
11
Intuit MailchimpPartial evidence
Atlanta, GA, United StatesHQ checked Sep 5, 20261,001-5,0001,483

“The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.”

Source: company website · checked Sep 5, 2026
12
Data AxleIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261,001-5,0001,088

“Data Axle helps clients create a foundation of clean data, find new leads, develop winning strategies, design beautiful campaigns, and can handle all day-to-day execution needs”

Source: company website · checked Sep 5, 2026
13
DemandscienceIndirect evidence
Boston, United StatesHQ checked Sep 5, 20261,001-5,0001,087

“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: company website · checked Sep 5, 2026
14
2xPartial evidence
Malvern, PA, United StatesHQ checked Sep 5, 20261,001-5,0001,046

“2X is the global leader in B2B marketing-as-a-service (MaaS), a subscription-based alternative to traditional B2B marketing delivery models.”

Source: company website · checked Sep 5, 2026
15
BORNIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20261,001-5,0001,029

“Connecting creative, content, and commerce, BORN is an award-winning, global agency that helps brands with digital transformation.”

Source: company website · checked Sep 5, 2026
16
Astound DigitalIndirect evidence
Atlanta, GA, United StatesHQ checked Sep 5, 20261,001-5,000936

“At Astound Digital, we help brands build smarter, connected digital experiences.”

Source: company website · checked Sep 5, 2026
17
WEBFXPartial evidence
Harrisburg, PA, United StatesHQ checked Sep 5, 2026501-1,000866

“We're here to be your digital marketing growth partner in the AI era.”

Source: company website · checked Sep 5, 2026
18
NP DigitalIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 20261,001-5,000866

“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: company website · checked Sep 5, 2026
19
ActivecampaignPartial evidence
Chicago, IL, United StatesHQ checked Sep 5, 20261,001-5,000863

“ActiveCampaign is the AI-first autonomous marketing platform built to transform how marketers, agencies, and entrepreneurs work.”

Source: company website · checked Sep 5, 2026
20
360 Degree CloudIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 2026501-1,000842

“At 360 Degree Cloud, our mission is to help businesses unlock the true power of Salesforce, transforming the way they operate, innovate, and grow.”

Source: company website · checked Sep 5, 2026
21
OnemagnifyIndirect evidence
Detroit, MI, United StatesHQ checked Sep 5, 2026501-1,000824

“At OneMagnify, we help transformational brands turn insight into action.”

Source: company website · checked Sep 5, 2026
22
Ziff Davis Performance MarketingIndirect evidence
Austin, TX, United StatesHQ checked Sep 5, 20261,001-5,000821

“ZDPM is the coming together of Salesify and DemandShore.”

Source: company website · checked Sep 5, 2026
23
MarigoldStrong evidence
Nashville, TN, United StatesHQ checked Sep 5, 2026201-500820

“Marigold is a global marketing technology company focused on delivering relationship marketing solutions for growing organizations.”

Source: company website · checked Sep 5, 2026
24
CMI Career Management INCStrong evidence
Vienna, VA, United StatesHQ checked Sep 5, 2026n/a818

“CMI (Career Management Inc.) is the premier provider of Sales & Marketing search / recruiting for small to mid sized software & technology companies.”

Source: company website · checked Sep 5, 2026
25
Lucas GroupStrong evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202610001+756

“Ultimate Minds is a professional consulting and marketing firm dedicated to empowering businesses, nonprofits, and startups with smart, affordable, and results-driven solutions.”

Source: company website · checked Sep 5, 2026

Showing 25 of 22,585 marketing technology consulting firms based in the United States

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Marketing technology consulting firms based in the United States at a glance

As of Sep 5, 2026
1-10Median size (employees)
New YorkLargest hub · 978 HQs
63,485Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
16,676
11-50
4,680
51-200
889
201-500
199
501-1,000
56
1,001-5,000
50
5,001-10,000
7
10001+
12

Verified emails by last verification

0–30
60,299
31–60
3,835
61–90
44
90–180
42
180+
641

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 technology consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 technology consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among marketing technology consulting 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 an evidence 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, 64,861 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 technology consulting firms by metro

Frequently asked

How many marketing technology consulting firms are there based in the United States?

RevenueBase identified 22,585 marketing technology consulting 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?

Epsilon, headquartered in Irving, tops this list with the largest team on record.

Which city has the most marketing technology consulting firms?

New York leads with 978 headquartered companies, followed by Los Angeles (513) and Chicago (487).

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 64,861 verified decision-maker contacts tracked across these 22,585 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.

Ready to reach these companies? Verified emails and direct dials for all 22,585 marketing technology consulting firms based in the United States. Start with a free account, no credit card.

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Related lists

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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.

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