Company lists · Data refreshed September 2026

Top 25 Marketing automation agencies based in the United States

Name: Marketing automation 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 17, 2026 6,565 companies tracked

RevenueBase identified 6,565 marketing automation agencies headquartered in the United States as of September 2026 and tracks 94,229 professional contacts across them, including 30,036 with verified work emails. New York is the largest hub.

This list covers marketing automation 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 17, 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 17, 2026 86% judged on-target in blind review

6,565Companies

94,229Contacts tracked

30,036Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest marketing automation agencies based in the United States

Ranked by team size

Top 25 of 6,565 marketing automation agencies based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to marketing automation 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	Zoominfo	Indirect evidence	Vancouver, WA, United StatesHQ checked Sep 17, 2026	1,001-5,000	4,029 contacts →
	Indirect evidence “ZoomInfo (NASDAQ: GTM) is the go-to-market platform that helps businesses find, acquire and grow their customers.” Source: RevenueBase Database · checked Sep 17, 2026
2	Klaviyo	Indirect evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,789 contacts →
	Indirect evidence “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Source: RevenueBase Database · checked Sep 17, 2026
3	Zeta Global	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,595 contacts →
	Partial evidence “At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing.” Source: RevenueBase Database · checked Sep 17, 2026
4	THRYV	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,412 contacts →
	Indirect evidence “Thryv is an AI-powered platform built to help small businesses get found, win customers, and drive repeat sales.” Source: RevenueBase Database · checked Sep 17, 2026
5	BRAZE	Indirect evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,142 contacts →
	Indirect 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 17, 2026
6	Constant Contact	Partial evidence	Waltham, MA, United StatesHQ checked Sep 17, 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 17, 2026
7	Localiq	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 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 17, 2026
8	Grazitti Interactive	Indirect evidence	Mountain View, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,506 contacts →
	Indirect evidence “Grazitti Interactive is a digital innovation leader with offices in India, USA, Australia, and Singapore.” Source: RevenueBase Database · checked Sep 17, 2026
9	Intuit Mailchimp	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,483 contacts →
	Partial evidence “The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.” Source: RevenueBase Database · checked Sep 17, 2026
10	Birdeye	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 17, 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 17, 2026
11	Centro	Strong evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	501-1,000	1,178 contacts →
	Strong evidence “Basis Technologies is a global provider of workflow automation, intelligence and programmatic trading software for the marketing enterprise.” Source: RevenueBase Database · checked Sep 17, 2026
12	Demandscience	Indirect evidence	Boston, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,087 contacts →
	Indirect 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 17, 2026
13	Logical Position	Indirect evidence	Lake Oswego, OR, United StatesHQ checked Sep 17, 2026	501-1,000	899 contacts →
	Indirect evidence “Logical Position (LP) is an Inc.” Source: RevenueBase Database · checked Sep 17, 2026
14	WEBFX	Partial evidence	Harrisburg, PA, United StatesHQ checked Sep 17, 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 17, 2026
15	NP Digital	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 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 17, 2026
16	Activecampaign	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	863 contacts →
	Partial evidence “ActiveCampaign is the AI-first autonomous marketing platform built to transform how marketers, agencies, and entrepreneurs work.” Source: RevenueBase Database · checked Sep 17, 2026
17	Marigold	Partial evidence	Nashville, TN, United StatesHQ checked Sep 17, 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 17, 2026
18	Manlitics B2B Ites	Partial evidence	New York, United StatesHQ checked Sep 17, 2026	501-1,000	750 contacts →
	Partial evidence “In an ERA of new and emerging digital mediums, we align our core expertise of today’s ever-changing technology with a clear understanding of traditional marketing methods without…” Source: RevenueBase Database · checked Sep 17, 2026
19	simpli.fi	Indirect evidence	Fort Worth, TX, United StatesHQ checked Sep 17, 2026	501-1,000	680 contacts →
	Indirect evidence “Simpli.fi is a real-world media platform that connects digital intent with physical movement, helping brands reach audiences in the right place, at the right moment, to drive…” Source: RevenueBase Database · checked Sep 17, 2026
20	Movable INK	Indirect evidence	New York, NY, United StatesHQ checked Sep 17, 2026	501-1,000	672 contacts →
	Indirect evidence “Movable Ink helps marketers create more relevant customer experiences across email, mobile, and web through data activation, AI-powered decisioning, and personalization at scale.” Source: RevenueBase Database · checked Sep 17, 2026
21	Wildnet Technologies	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	201-500	590 contacts →
	Partial evidence “Wildnet Technologies - Best Digital Marketing Agency \| White Label Services for Growing Agencies \| Results-Driven AI SEO Services We don't just run campaigns-we build growth…” Source: RevenueBase Database · checked Sep 17, 2026
22	Optimove	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	501-1,000	588 contacts →
	Partial evidence “Optimove, the creator of Positionless Marketing, frees marketing teams from the limitations of fixed roles, giving every marketer the power to execute any marketing task instantly…” Source: RevenueBase Database · checked Sep 17, 2026
23	Adobe Marketo	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	572 contacts →
	Indirect evidence “Adobe Marketo Engage offers the leading Engagement Platform that empowers marketers to build brand value, grow revenue, and prove impact.” Source: RevenueBase Database · checked Sep 17, 2026
24	Treasure AI	Partial evidence	Mountain View, CA, United StatesHQ checked Sep 17, 2026	501-1,000	511 contacts →
	Partial evidence “Treasure AI is the Agentic Experience Platform built for modern marketing teams.” Source: RevenueBase Database · checked Sep 17, 2026
25	Callbox INC	Indirect evidence	Encino, CA, United StatesHQ checked Sep 17, 2026	201-500	499 contacts →
	Indirect evidence “Callbox is the #1 trusted lead generation services and AI-Powered Growth Strategy Partner by enterprise and scaling businesses in the USA, Canada, Asia Pacific, Latin America…” Source: RevenueBase Database · checked Sep 17, 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 automation 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 marketing automation agencies.
Partial evidence: Its own public description names part of marketing automation agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marketing automation 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 6,565 marketing automation agencies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 30,036 reachable decision-makers.

Free signup · no credit card

View the full list →

Marketing automation agencies based in the United States at a glance

As of Sep 17, 2026

31.9%Verified-email coverage

14.4Average contacts per company

1-10Median size (employees)

4.7%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

4,370

11-50

1,688

51-200

360

201-500

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 6,565 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 marketing automation 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 “marketing automation 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 marketing automation 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 marketing automation 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, 30,036 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 17, 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 automation 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 marketing automation 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 marketing automation agencies are there based in the United States?

RevenueBase identified 6,565 marketing automation 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?

Zoominfo, headquartered in Vancouver, tops this list with the largest team on record.

Which city has the most marketing automation agencies?

New York leads with 310 headquartered companies, followed by Los Angeles (173) and Miami (164).

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 30,036 verified decision-maker contacts tracked across these 6,565 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 6,565 marketing automation agencies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Marketing automation agencies by geography

Browse the directory

Browse: Companies home · All United States lists · All Marketing automation agencies lists · New lists

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.