Company lists · Data refreshed September 2026

Top 25 Marketing automation software developers based in the United States

RevenueBase identified 1,151 company matches for marketing automation software developers associated with the United States as of September 2026 and tracks 37,191 professional contacts across them, including 16,172 with verified work emails and 10,899 with mobile numbers. New York is the largest hub.

This list covers company matches for marketing automation software developers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. 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 RevenueBase SmartSearch · Exact Recorded Sep 5, 2026 How this list was built
1,151Companies
37,191Contacts tracked
16,172Verified emails
10,899Mobile numbers
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The 25 largest marketing automation software developers based in the United States

Ranked by team size
Top 25 of 1,151 company matches for marketing automation software developers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCambridge, MA, United StatesHQ recorded Sep 5, 20265,001-10,00011,077 contacts →

Exact match

“HubSpot is a leading agentic customer platform that provides software and support to help businesses grow better.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
2Exact matchBoston, MA, United StatesHQ recorded Sep 5, 20261,001-5,0002,789 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Sep 5, 20261,001-5,0002,142 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
4Exact matchAtlanta, GA, United StatesHQ recorded Sep 5, 20261,001-5,0001,483 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
5Exact matchChicago, IL, United StatesHQ recorded Sep 5, 2026501-1,0001,178 contacts →

Exact match

“Basis Technologies is a global provider of workflow automation, intelligence and programmatic trading software for the marketing enterprise.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
6Exact matchSan Francisco, CA, United StatesHQ recorded Sep 5, 2026501-1,000908 contacts →

Exact match

“MoEngage is an agentic customer engagement platform for the customer-obsessed marketers and product owners.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
7Exact matchChicago, IL, United StatesHQ recorded Sep 5, 20261,001-5,000863 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
8Exact matchNashville, TN, United StatesHQ recorded Sep 5, 2026201-500820 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
9Exact matchFort Worth, TX, United StatesHQ recorded Sep 5, 2026501-1,000680 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
10Exact matchNew York, NY, United StatesHQ recorded Sep 5, 2026501-1,000588 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
11Exact matchSan Jose, CA, United StatesHQ recorded Sep 5, 20261,001-5,000572 contacts →

Exact match

“Adobe Marketo Engage offers the leading Engagement Platform that empowers marketers to build brand value, grow revenue, and prove impact.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
12Exact matchSunnyvale, CA, United StatesHQ recorded Sep 5, 202610001+381 contacts →

Exact match

“Collaborate, innovate and drive the business forward with HCLSoftware's Digital Transformation marketing software solution.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, CA, United StatesHQ recorded Sep 5, 2026201-500358 contacts →

Exact match

“Hightouch is an Agentic Marketing Platform powered by the industry-leading Composable CDP.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
14Exact matchLititz, PA, United StatesHQ recorded Sep 5, 2026201-500295 contacts →

Exact match

“Listrak is the person-first marketing automation platform that seamlessly integrates data, identity, and cross-channel messaging to power hyper-personalized customer experiences.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
15Exact matchHenderson, NV, United StatesHQ recorded Sep 5, 2026n/a260 contacts →

Exact match

“Best-in-class sales & marketing automation platform and marketplace for digital business owners and online marketers”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
16Exact matchSan Jose, CA, United StatesHQ recorded Sep 5, 2026201-500250 contacts →

Exact match

“Web Spiders (WS) is an enterprise software company that develops products for marketing and HR.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
17Exact matchSanta Clara, CA, United StatesHQ recorded Sep 5, 202651-200225 contacts →

Exact match

“Position² is a fast-growing Demand Generation company, venture backed by Accel Partners.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
18Exact matchPortland, OR, United StatesHQ recorded Sep 5, 2026201-500210 contacts →

Exact match

“Act-On Software provides the innovative marketing automation platform for marketers who think big and act boldly.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
19Exact matchSan Jose, CA, United StatesHQ recorded Sep 5, 2026201-500205 contacts →

Exact match

“Tangence accelerates marketing execution for companies more efficiently than in-house teams or other agencies.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
20Exact matchChandler, AZ, United StatesHQ recorded Sep 5, 2026201-500192 contacts →

Exact match

“With Keap, you'll easily capture, organize, track, and nurture all of your leads to increase sales and revenue.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
21Exact matchSeattle, WA, United StatesHQ recorded Sep 5, 2026201-500181 contacts →

Exact match

“We believe every business deserves great marketing.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
22Exact matchNew York, United StatesHQ recorded Sep 5, 202651-200180 contacts →

Exact match

“SendPulse is an AI-driven marketing platform that helps scaling businesses automate email and chatbot conversations.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
23Exact matchSan Antonio, TX, United StatesHQ recorded Sep 5, 202651-200163 contacts →

Exact match

“Stirista is the only company that combines data, email, and digital execution to help clients acquire and retain customers by creating a data-driven, repeatable, and scalable…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
24Exact matchSan Jose, CA, United StatesHQ recorded Sep 5, 202651-200159 contacts →

Exact match

“RightWave provides Marketing Automation Services for B2B companies.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
25Exact matchMorrisville, NC, United StatesHQ recorded Sep 5, 202651-200137 contacts →

Exact match

“We believe powerful connections propel business growth.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase

Showing 25 of 1,151 marketing automation software developers based in the United States

See the full list, filter by size, metro and specialty, and access 16,172 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marketing automation software developers based in the United States at a glance

As of Sep 5, 2026
43.5%Verified-email coverage
29.3%Mobile-number coverage
32.3Average contacts per company
1-10Median size (employees)
4.8%Largest-city concentration · New York
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
698
11-50
310
51-200
91
201-500
28
501-1,000
4
1,001-5,000
13
5,001-10,000
2
10001+
3

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United States whose business descriptions match “marketing automation software developers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 16,172 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “marketing automation software developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marketing automation software developers are there based in the United States?

RevenueBase identified 1,151 company matches for marketing automation software developers associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Hubspot tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most marketing automation software developers?

New York leads with 55 company records, followed by San Francisco (48) and Los Angeles (31).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 16,172 professional contacts with verified work emails tracked across these 1,151 companies; direct dials are available where recorded.

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 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.