Company lists · Data refreshed September 2026

Top 25 Marketing automation software for B2B companies based in the United States

Name: Marketing automation software for B2B companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 2,087 companies tracked

RevenueBase identified 2,087 company matches for marketing automation software for B2B companies associated with the United States as of September 2026 and tracks 55,807 professional contacts across them, including 21,692 with verified work emails. New York is the largest hub.

This list covers company matches for marketing automation software for B2B companies 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 21, 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 21, 2026 How this list was built

2,087Companies

55,807Contacts tracked

21,692Verified emails

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The 25 largest marketing automation software for B2B companies based in the United States

Ranked by team size

Top 25 of 2,087 company matches for marketing automation software for B2B companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Hubspot	Exact match	Cambridge, MA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	11,077 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 21, 2026 · View company records in RevenueBase
2	Zoominfo	Exact match	Vancouver, WA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	4,029 contacts →
	Exact match “ZoomInfo (NASDAQ: GTM) is the go-to-market platform that helps businesses find, acquire and grow their customers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Klaviyo	Exact match	Boston, MA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,789 contacts →
	Exact match “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Intuit Mailchimp	Exact match	Atlanta, GA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,483 contacts →
	Exact match “The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	6sense	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,443 contacts →
	Exact match “6sense is on a mission to revolutionize the way B2B organizations create revenue by predicting customers most likely to buy and recommending the best course of action to engage…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Centro	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 2026	501-1,000	1,178 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 21, 2026 · View company records in RevenueBase
7	Demandscience	Exact match	Boston, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,087 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Cience	Exact match	Miami, FL, United StatesHQ recorded Sep 21, 2026	201-500	1,068 contacts →
	Exact match “CIENCE Technologies, Inc, founded in 2015 and headquartered in Denver, CO, is a pioneering global company in lead generation software and services, committed to transforming the…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	2x	Exact match	Malvern, PA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,046 contacts →
	Exact match “2X is the global leader in B2B marketing-as-a-service (MaaS), a subscription-based alternative to traditional B2B marketing delivery models.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Activecampaign	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 2026	1,001-5,000	863 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 21, 2026 · View company records in RevenueBase
11	Demandbase	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	501-1,000	861 contacts →
	Exact match “Demandbase is the only pipeline AI platform that empowers GTM teams to automate growth at scale.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Marigold	Exact match	Nashville, TN, United StatesHQ recorded Sep 21, 2026	201-500	820 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 21, 2026 · View company records in RevenueBase
13	simpli.fi	Exact match	Fort Worth, TX, United StatesHQ recorded Sep 21, 2026	501-1,000	680 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 21, 2026 · View company records in RevenueBase
14	Optimove	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	501-1,000	588 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 21, 2026 · View company records in RevenueBase
15	Adobe Marketo	Exact match	San Jose, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	572 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 21, 2026 · View company records in RevenueBase
16	Callbox INC	Exact match	Encino, CA, United StatesHQ recorded Sep 21, 2026	201-500	499 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Marketone International	Exact match	Waltham, MA, United StatesHQ recorded Sep 21, 2026	201-500	431 contacts →
	Exact match “MarketOne is a global demand generation agency.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	HCL Unica	Exact match	Sunnyvale, CA, United StatesHQ recorded Sep 21, 2026	10001+	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 21, 2026 · View company records in RevenueBase
19	Invoca	Exact match	West Hollywood, CA, United StatesHQ recorded Sep 21, 2026	201-500	368 contacts →
	Exact match “Invoca is the revenue execution and platform leader that helps marketing, commerce, and contact center teams turn every conversation into revenue.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Hightouch	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	201-500	358 contacts →
	Exact match “Hightouch is an Agentic Marketing Platform powered by the industry-leading Composable CDP.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Acceligize	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	201-500	349 contacts →
	Exact match “Acceligize is a global B2B marketing company, providing full funnel lead generation and content marketing solutions to some of the world’s finest technology companies, media…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Validity INC	Exact match	Boston, MA, United StatesHQ recorded Sep 21, 2026	201-500	345 contacts →
	Exact match “Validity created the AI platform behind the world's most successful email programs.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Madison Logic	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	334 contacts →
	Exact match “Since 2005, Madison Logic has empowered the largest and fastest-growing companies to convert their best accounts faster.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Callrail	Exact match	Atlanta, GA, United StatesHQ recorded Sep 21, 2026	201-500	332 contacts →
	Exact match “CallRail is the lead engagement platform that makes it easy for businesses to attract more leads, convert more customers, and optimize their marketing.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Nextroll	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	201-500	320 contacts →
	Exact match “NextRoll is a leading marketing technology company that empowers businesses to drive sustainable growth while building trusted connections with their audiences.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “marketing automation software for B2B companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 2,087 marketing automation software for B2B companies based in the United States

See the full list, filter by size, metro and specialty, and access 21,692 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marketing automation software for B2B companies based in the United States at a glance

As of Sep 21, 2026

38.9%Verified-email coverage

26.7Average contacts per company

1-10Median size (employees)

5.4%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

1,234

11-50

585

51-200

180

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 2,087 companies.

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 for B2B companies” 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 21,692 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 21, 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.

Marketing automation software for B2B companies by metro

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 for B2B companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marketing automation software for B2B companies are there based in the United States?

RevenueBase identified 2,087 company matches for marketing automation software for B2B companies 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 for B2B companies?

New York leads with 112 company records, followed by San Francisco (95) and Austin (54).

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 21,692 professional contacts with verified work emails tracked across these 2,087 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 21, 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.