Company lists · Data refreshed September 2026

Top 25 Customer engagement software companies worldwide

RevenueBase identified 1,588 customer engagement software companies worldwide as of September 2026 and tracks 70,542 professional contacts across them, including 25,980 with verified work emails and 12,015 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers customer engagement software companies worldwide, 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 1, 2026. Country and city lists for customer engagement software companies follow the table.

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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review
1,588Companies
70,542Contacts tracked
25,980Verified emails
12,015Mobile numbers
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The 25 largest customer engagement software companies worldwide

Ranked by team size
Top 25 of 1,588 customer engagement software companies worldwide, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to customer engagement software companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceAmsterdam, NL5,001-10,00010,997 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
2Strong evidenceLondon, GB10001+8,414 contacts →

Strong evidence

“24]7.ai™ customer engagement solutions use conversational artificial intelligence to understand customer intent, enabling companies to create personalized, predictive, and…”

Source: RevenueBase Database · checked Sep 1, 2026
3Indirect evidenceBoston, MA, US1,001-5,0002,859 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
4Strong evidenceLondon, GB1,001-5,0002,133 contacts →

Strong 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 1, 2026
5Partial evidenceSao Paulo, BR1,001-5,0001,919 contacts →

Partial evidence

“Actionline is dedicated to connecting brands with their customers, strengthening their presence and value at every touchpoint.”

Source: RevenueBase Database · checked Sep 1, 2026
6Indirect evidenceBengaluru, IndiaHQ checked Sep 1, 2026501-1,0001,320 contacts →

Indirect evidence

“Capillary Technologies, founded in 2012, is a technology-first company that delivers AI-based cloud-native SaaS programs and solutions, leading the automated Loyalty Management…”

Source: RevenueBase Database · checked Sep 1, 2026
7Strong evidenceMumbai, IndiaHQ checked Sep 1, 20261,001-5,0001,265 contacts →

Strong evidence

“Netcore offers a Comprehensive Customer Engagement & Experience Suite that empowers marketers to create personalised customer experiences.”

Source: RevenueBase Database · checked Sep 1, 2026
8Strong evidenceLondon, GB201-500986 contacts →

Strong evidence

“TLC Worldwide is a global leader in customer engagement, loyalty, and reward solutions.”

Source: RevenueBase Database · checked Sep 1, 2026
9Indirect evidenceNashville, TN, US201-500818 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
10Strong evidenceBoston, MA, US501-1,000768 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
11Strong evidenceSydney, AU501-1,000768 contacts →

Strong evidence

“Khoros' award-winning enterprise software makes it easier for complex brands to engage with customers at scale across digital, social, and brand-owned channels.”

Source: RevenueBase Database · checked Sep 1, 2026
12Strong evidenceLondon, GB501-1,000766 contacts →

Strong evidence

“Iterable is the AI customer engagement platform built for enterprise scale, loved by teams, and trusted by global brands like Priceline, Fabletics, Blockchain, and Box.”

Source: RevenueBase Database · checked Sep 1, 2026
13Indirect evidencePalo Alto, CA, US201-500753 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
14Strong evidenceKt, NL1,001-5,000711 contacts →

Strong evidence

“CM.com (AMS: CMCOM) is a global leader in cloud software for conversational commerce that enables businesses to deliver a superior customer experience.”

Source: RevenueBase Database · checked Sep 1, 2026
15Strong evidenceBangalore, IndiaHQ checked Sep 1, 20261,001-5,000691 contacts →

Strong evidence

“Exotel is your AI transformation partner for customer engagement and experience.”

Source: RevenueBase Database · checked Sep 1, 2026
16Indirect evidenceLondon, GB501-1,000623 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 1, 2026
17Strong evidenceDenver, CO, US501-1,000610 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
18Partial evidenceAtlanta, GA, US1,001-5,000570 contacts →

Partial 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 1, 2026
19Indirect evidenceWaltham, MA, US501-1,000532 contacts →

Indirect evidence

“Acoustic, L.P.”

Source: RevenueBase Database · checked Sep 1, 2026
20Partial evidenceNew York, NY, US201-500488 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
21Indirect evidenceTampa, FL, US201-500466 contacts →

Indirect evidence

“ENGAGE.”

Source: RevenueBase Database · checked Sep 1, 2026
22Indirect evidenceMountain View, CA, US201-500456 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
23Strong evidencePortland, OR, US201-500445 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
24Strong evidenceNew York, US501-1,000433 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
25Partial evidenceHamburg, DE501-1,000432 contacts →

Partial evidence

“The Swiss software company BSI Software designs, develops, and sells market-leading European CRM and CX software that is not only technologically exceptional but also…”

Source: RevenueBase Database · checked Sep 1, 2026

Showing 25 of 1,588 customer engagement software companies worldwide

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Customer engagement software companies worldwide at a glance

As of Sep 1, 2026
36.8%Verified-email coverage
17.0%Mobile-number coverage
44.4Average contacts per company
11-50Median size (employees)
4.9%Largest-city concentration · London
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
687
11-50
556
51-200
229
201-500
66
501-1,000
22
1,001-5,000
21
5,001-10,000
2
10001+
3

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 customer engagement software companies, 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.
Coverage
12 countries, largest first: the United States, India, the United Kingdom, Brazil, Canada, France, Australia, Germany, the Netherlands, the United Arab Emirates and 2 more. Country and city lists for customer engagement software companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “customer engagement software companies”. 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 customer engagement software companies), 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 customer engagement software companies, and records with no verified work email.
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, 25,980 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 between September 1, 2026 and September 14, 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.

Customer engagement software companies by location

18 lists · largest first

Every Customer engagement software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 customer engagement software companies, 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 customer engagement software companies are there worldwide?

RevenueBase identified 1,588 customer engagement software companies worldwide 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?

Hubspot, headquartered in Amsterdam, tops this list with the largest team on record.

Which country has the most customer engagement software companies?

The United States leads with 668 companies, followed by India (245) and the United Kingdom (159). Every customer engagement software companies list by country and city is linked on this page.

Which city has the most customer engagement software companies?

London leads with 78 headquartered companies, followed by New York (51) and San Francisco (45).

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 25,980 verified decision-maker contacts tracked across these 1,588 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 1, 2026 and September 14, 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 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.