Company lists · Data refreshed September 2026

Top 25 Customer engagement software companies based in the United States

RevenueBase identified 668 company matches for customer engagement software companies associated with the United States as of September 2026 and tracks 20,163 professional contacts across them, including 7,899 with verified work emails and 5,781 with mobile numbers. New York is the largest hub.

This list covers company matches for customer engagement software 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 1, 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 1, 2026 How this list was built
668Companies
20,163Contacts tracked
7,899Verified emails
5,781Mobile numbers
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The 25 largest customer engagement software companies based in the United States

Ranked by team size
Top 25 of 668 company matches for customer engagement software companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 1, 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 States1,001-5,0002,859 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
2Exact matchNashville, TN, United States201-500818 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 1, 2026 · View company records in RevenueBase
3Exact matchBoston, MA, United States501-1,000768 contacts →

Exact match

“Vendasta is the leading AI software company for customer acquisition and engagement, helping businesses get more customers.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
4Exact matchPalo Alto, CA, United States201-500753 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 · Sep 1, 2026 · View company records in RevenueBase
5Exact matchDenver, CO, United States501-1,000610 contacts →

Exact match

“Bond is the customer-intelligence driven engagement company.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
6Exact matchAtlanta, GA, United States1,001-5,000570 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 1, 2026 · View company records in RevenueBase
7Exact matchWaltham, MA, United States501-1,000532 contacts →

Exact match

“Acoustic, L.P.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United States201-500488 contacts →

Exact match

“Dotdigital is a marketing personalization platform that helps you connect with your customers on the channels they know and love.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
9Exact matchTampa, FL, United States201-500466 contacts →

Exact match

“ENGAGE.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
10Exact matchMountain View, CA, United States201-500456 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
11Exact matchPortland, OR, United States201-500445 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
12Exact matchNew York, United States501-1,000433 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 · Sep 1, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United States201-500362 contacts →

Exact match

“Resulticks is a fully integrated, real-time audience engagement solution designed to help brands worldwide reach, acquire, and retain satised customers.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
14Exact matchAtlanta, GA, United States201-500330 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 1, 2026 · View company records in RevenueBase
15Exact matchArlington, VA, United States201-500302 contacts →

Exact match

“Higher Logic is revolutionizing engagement for associations and businesses.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
16Exact matchNewton, MA, United States201-500270 contacts →

Exact match

“Paytronix, an Access Group company, is a cloud-based digital guest engagement platform for the hospitality industry.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
17Exact matchSt. Louis Park, MN, United States201-500233 contacts →

Exact match

“Total Expert is the purpose-built customer engagement platform trusted by more than 200 financial enterprises.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
18Exact matchChicago, IL, United States201-500231 contacts →

Exact match

“Tacton is a leading SaaS company redefining buyer engagement for manufacturers of complex products.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
19Exact matchSan Francisco, CA, United States201-500218 contacts →

Exact match

“For business leaders who want to get AI right, Gladly is the only customer experience AI that delivers the cost savings you need AND the customer devotion that drives lasting…”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
20Exact matchMclean, VA, United States51-200212 contacts →

Exact match

“Annex Cloud empowers brands to launch, scale, and optimize loyalty programs that drive measurable business results.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
21Exact matchEl Segundo, CA, United States1,001-5,000212 contacts →

Exact match

“Rosetta is an agency focused on Customer Engagement.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United States51-200195 contacts →

Exact match

“Our mission is to solve customer experience.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
23Exact matchSeattle, WA, United States201-500183 contacts →

Exact match

“We believe every business deserves great marketing.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
24Exact matchNew York, United States51-200181 contacts →

Exact match

“SendPulse is an all-in-one automation platform that specializes in email, SMS, and chatbot marketing and offers a complete toolkit for creating landing pages, developing online…”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
25Exact matchSheridan, WY, United States501-1,000161 contacts →

Exact match

“Delivering Next Generation Customer Engagement, Driving Meaningful Action with Customer Insights, Winning Customers Through Experience Design & Marketing.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase

Showing 25 of 668 customer engagement software companies based in the United States

See the full list, filter by size, metro and specialty, and access 7,899 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Customer engagement software companies based in the United States at a glance

As of Sep 1, 2026
39.2%Verified-email coverage
28.7%Mobile-number coverage
30.2Average contacts per company
11-50Median size (employees)
7.6%Largest-city concentration · New York
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
286
11-50
246
51-200
88
201-500
29
501-1,000
9
1,001-5,000
9
10001+
1

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 “customer engagement software 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 7,899 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 1, 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 “customer engagement software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many customer engagement software companies are there based in the United States?

RevenueBase identified 668 company matches for customer engagement software 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?

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

Which city has the most customer engagement software companies?

New York leads with 51 company records, followed by San Francisco (45) and Austin (22).

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 7,899 professional contacts with verified work emails tracked across these 668 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 1, 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.