Company lists · Data refreshed September 2026

Top 25 Engagement automation platform software companies worldwide

RevenueBase identified 22,305 engagement automation platform software companies worldwide as of September 2026 and tracks 420,005 professional contacts across them, including 172,487 with verified work emails. The United States is the largest market and London the largest hub.

This list covers engagement automation platform 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 28, 2026. Country and city lists for engagement automation platform 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
22,305Companies
420,005Contacts tracked
172,487Verified emails
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The 25 largest engagement automation platform software companies worldwide

Ranked by team size
Top 25 of 22,305 engagement automation platform software companies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to engagement automation platform 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
1Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202610001+86,470 contacts →

Partial evidence

“We're the #1 AI CRM-where humans with agents drive customer success together with AI, data, and Customer 360 apps on one platform.”

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceCambridge, MA, United StatesHQ checked Sep 28, 20265,001-10,00011,077 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 28, 2026
3Indirect evidenceHoboken, NJ, United StatesHQ checked Sep 28, 20265,001-10,00010,721 contacts →

Indirect evidence

“NiCE is transforming the world with AI that puts people first.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceWinnipeg, MB, CanadaHQ checked Sep 28, 202610001+8,992 contacts →

Indirect evidence

“We are IntouchCX, where innovation meets industry, where dreamers meet doers, and where scale meets soul.”

Source: RevenueBase Database · checked Sep 28, 2026
5Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 20265,001-10,0006,047 contacts →

Strong evidence

“Today's leading companies trust Twilio's Customer Engagement Platform (CEP) to build direct, personalized relationships with their customers everywhere in the world.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceProvo, United StatesHQ checked Sep 28, 20265,001-10,0005,735 contacts →

Indirect evidence

“Qualtrics is the leader in Experience Management.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,0004,513 contacts →

Partial evidence

“Sprinklr is the definitive, AI-native platform for Unified Customer Experience Management (Unified-CXM), empowering brands to deliver extraordinary experiences at scale, across…”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceVancouver, WA, United StatesHQ checked Sep 28, 20261,001-5,0004,029 contacts →

Partial evidence

“ZoomInfo (NASDAQ: GTM) is the go-to-market platform that helps businesses find, acquire and grow their customers.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceBagneux, FranceHQ checked Sep 28, 20261,001-5,0003,472 contacts →

Partial evidence

“Quadient designs and builds human-centered, AI-driven automation solutions for business communications.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceStockholm, SwedenHQ checked Sep 28, 20261,001-5,0002,934 contacts →

Indirect evidence

“Sinch’s vision is to connect every business with every customer, everywhere in the world.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceBangalore, IndiaHQ checked Sep 28, 20265,001-10,0002,793 contacts →

Partial evidence

“Possibilities Unlimited Inspire enterprises with the power of digital platforms.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceBoston, MA, United StatesHQ checked Sep 28, 20261,001-5,0002,789 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,0002,595 contacts →

Indirect evidence

“At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 20261,001-5,0002,412 contacts →

Partial evidence

“Thryv is an AI-powered platform built to help small businesses get found, win customers, and drive repeat sales.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceNoida, IndiaHQ checked Sep 28, 20265,001-10,0002,270 contacts →

Indirect evidence

“We are revenue AI-X-lerators.”

Source: RevenueBase Database · checked Sep 28, 2026
16Strong evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,0002,142 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 28, 2026
17Partial evidenceMclean, VA, United StatesHQ checked Sep 28, 20261,001-5,0002,006 contacts →

Partial evidence

“Medallia is the enterprise experience platform that turns every signal into decisive action.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0001,991 contacts →

Indirect evidence

“We believe customers and employees should be looked after, and every interaction is an opportunity for a conversation and to learn more about them.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 20261,001-5,0001,767 contacts →

Indirect evidence

“Your tech stack is costing you more than money.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceManchester, NH, United StatesHQ checked Sep 28, 20261,001-5,0001,727 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceScottsdale, AZ, United StatesHQ checked Sep 28, 20261,001-5,0001,638 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceToronto, ON, CanadaHQ checked Sep 28, 20261,001-5,0001,633 contacts →

Indirect evidence

“StackAdapt is the leading technology company that empowers marketers to reach, engage, and convert audiences with precision.”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceNew York, United StatesHQ checked Sep 28, 20261,001-5,0001,584 contacts →

Partial evidence

“Optimizely is the AI platform for marketing, built for the experience-makers who shape how brands show up in the world.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceChicago, IL, United StatesHQ checked Sep 28, 20261,001-5,0001,539 contacts →

Partial evidence

“Sprout Social is a global leader in social media management and analytics software.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,0001,534 contacts →

Indirect evidence

“Grow your business with digital marketing powered by AI and local expertise.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 22,305 engagement automation platform software companies worldwide

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Engagement automation platform software companies worldwide at a glance

As of Sep 28, 2026
41.1%Verified-email coverage
18.8Average contacts per company
1-10Median size (employees)
2.6%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
14,302
11-50
5,905
51-200
1,466
201-500
344
501-1,000
115
1,001-5,000
101
5,001-10,000
16
10001+
26

Email recency is reported on each country list linked below.

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 engagement automation platform 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
Every country. Country and city lists for engagement automation platform software companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “engagement automation platform 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 engagement automation platform 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 engagement automation platform 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, 172,487 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 on September 28, 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.

Engagement automation platform software companies by location

123 lists · largest first

Every Engagement automation platform 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 engagement automation platform 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 engagement automation platform software companies are there worldwide?

RevenueBase identified 22,305 engagement automation platform 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?

Salesforce, headquartered in San Francisco, tops this list with the largest team on record.

Which country has the most engagement automation platform software companies?

The United States leads with 5,069 companies, followed by India (2,029) and the United Kingdom (1,136). Every engagement automation platform software companies list by country and city is linked on this page.

Which city has the most engagement automation platform software companies?

London leads with 583 headquartered companies, followed by New York (333) and San Francisco (320).

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 172,487 verified decision-maker contacts tracked across these 22,305 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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.