Company lists · Data refreshed November 2026

Top 25 Engagement automation platforms based in the United States

RevenueBase identified 2,358 company matches for engagement automation platforms associated with the United States as of November 2026 and tracks 55,376 professional contacts across them, including 18,485 with verified work emails. New York is the largest hub.

This list covers company matches for engagement automation platforms 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 November 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 Nov 5, 2026 How this list was built
2,358Companies
55,376Contacts tracked
18,485Verified emails
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The 25 largest engagement automation platforms based in the United States

Ranked by team size
Top 25 of 2,358 company matches for engagement automation platforms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 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 matchBoston, MA, United StatesHQ recorded Nov 5, 20261,001-5,0002,980 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchManchester, NH, United StatesHQ recorded Nov 5, 20261,001-5,0001,777 contacts →

Exact match

“Sitecore creates digital experiences so powerful they connect the world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchScottsdale, AZ, United StatesHQ recorded Nov 5, 20261,001-5,0001,642 contacts →

Exact match

“Build amazing customer experiences with Nextiva’s AI-powered platform.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchAtlanta, GA, United StatesHQ recorded Nov 5, 20261,001-5,0001,430 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchHighland Park, TX, United StatesHQ recorded Nov 5, 202610001+1,265 contacts →

Exact match

“Dialog Direct helps brands manage and personalize their multichannel, multi-touch customer journeys using data-driven marketing and customer engagement solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchChicago, WA, United StatesHQ recorded Nov 5, 2026501-1,0001,259 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 · Nov 5, 2026 · View company records in RevenueBase
7Exact matchBoston, United StatesHQ recorded Nov 5, 20261,001-5,0001,108 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 · Nov 5, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 2026501-1,000962 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchChicago, IL, United StatesHQ recorded Nov 5, 20261,001-5,000867 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 · Nov 5, 2026 · View company records in RevenueBase
10Exact matchMelville, CA, United StatesHQ recorded Nov 5, 2026n/a781 contacts →

Exact match

“As the leading provider of agile marketing solutions for multichannel marketers on a national and global scale, MBS partners with retailers and others to manage the avalanche of…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchPalo Alto, CA, United StatesHQ recorded Nov 5, 2026201-500777 contacts →

Exact match

“AppLovin helps businesses of any size reach over a billion people who play mobile games every day.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 2026501-1,000713 contacts →

Exact match

“CleverTap is the leading all-in-one customer engagement platform that helps brands unlock limitless customer lifetime value.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchNashville, TN, United StatesHQ recorded Nov 5, 2026201-500650 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 · Nov 5, 2026 · View company records in RevenueBase
14Exact matchFort Worth, TX, United StatesHQ recorded Nov 5, 2026501-1,000637 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 · Nov 5, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026501-1,000582 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 · Nov 5, 2026 · View company records in RevenueBase
16Exact matchSan Jose, GA, United StatesHQ recorded Nov 5, 20261,001-5,000573 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 · Nov 5, 2026 · View company records in RevenueBase
17Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 2026501-1,000543 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 2026201-500522 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchConway, AR, United StatesHQ recorded Nov 5, 2026501-1,000512 contacts →

Exact match

“Acoustic, L.P.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchPortland, OR, United StatesHQ recorded Nov 5, 2026201-500511 contacts →

Exact match

“Create personalized customer journeys that engage and convert with our versatile customer engagement platform.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchChicago, CO, United StatesHQ recorded Nov 5, 2026201-500503 contacts →

Exact match

“Yes Marketing focuses on enabling marketers to engage, acquire and retain consumers along each stage of the consumer journey with a brand – from awareness through consideration…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026501-1,000487 contacts →

Exact match

“Wunderkind is pioneering a new category of AI agentic marketing decisioning, where identity meets AI to drive scalable performance across channel.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchMountain View, CA, United StatesHQ recorded Nov 5, 2026201-500469 contacts →

Exact match

“Branch is on a mission: to power impactful experiences in the connected world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026501-1,000453 contacts →

Exact match

“Mastercard Dynamic Yield helps businesses deliver digital customer experiences that are personalized, optimized, and synchronized.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchTroy, MI, United StatesHQ recorded Nov 5, 2026501-1,000447 contacts →

Exact match

“Doxim is the customer communications management and engagement technology leader serving highly regulated markets, including financial services, utilities and healthcare.”

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

Showing 25 of 2,358 engagement automation platforms based in the United States

See the full list, filter by size, metro and specialty, and access 18,485 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Engagement automation platforms based in the United States at a glance

As of Nov 5, 2026
33.4%Verified-email coverage
23.5Average contacts per company
1-10Median size (employees)
7.9%Largest-city concentration · New York
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
1,297
11-50
725
51-200
211
201-500
67
501-1,000
22
1,001-5,000
27
5,001-10,000
3
10001+
3

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 2,358 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 “engagement automation platforms” 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 18,485 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 November 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 “engagement automation platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many engagement automation platforms are there based in the United States?

RevenueBase identified 2,358 company matches for engagement automation platforms associated with the United States as of November 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?

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

Which city has the most engagement automation platforms?

New York leads with 186 company records, followed by San Francisco (140) and Los Angeles (68).

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 18,485 professional contacts with verified work emails tracked across these 2,358 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 November 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.