Company lists · Data refreshed November 2026

Top 25 Customer communication platforms worldwide

RevenueBase identified 4,313 company matches for customer communication platforms worldwide as of November 2026 and tracks 153,140 professional contacts across them, including 53,546 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for customer communication platforms worldwide, 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. Country and city lists for customer communication platforms follow the table.

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
4,313Companies
153,140Contacts tracked
53,546Verified emails
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The 25 largest customer communication platforms worldwide

Ranked by team size
Top 25 of 4,313 company matches for customer communication platforms worldwide, 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 matchCambridge, United StatesHQ recorded Nov 5, 20265,001-10,00011,646 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 · Nov 5, 2026 · View company records in RevenueBase
2Exact matchBelmont, United StatesHQ recorded Nov 5, 20265,001-10,0006,795 contacts →

Exact match

“RingCentral, Inc.(NYSE: RNG) is a global leader in AI–powered customer engagement, delivering an integrated platform for business phone, SMS, contact center, workforce engagement…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, United StatesHQ recorded Nov 5, 20265,001-10,0006,595 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Nov 5, 20261,001-5,0003,508 contacts →

Exact match

“Infobip is a global leader in omnichannel engagement powering a broad range of messaging channels, tools and solutions for advanced customer engagement, authentication and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchSao Paulo, BrazilHQ recorded Nov 5, 202610001+3,349 contacts →

Exact match

“Com uma vontade contagiante de fazer a diferença, a Contax é a única empresa do setor presente em toda a jornada de relacionamento do consumidor, com olhar humano e abordagem…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchStockholm, SwedenHQ recorded Nov 5, 20261,001-5,0003,132 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact 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
8Exact matchCampbell, United StatesHQ recorded Nov 5, 20261,001-5,0002,541 contacts →

Exact match

“8x8, Inc.(NASDAQ: EGHT) believes that CX limits were meant to be shattered.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchSao Paulo, BrazilHQ recorded Nov 5, 20261,001-5,0002,234 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 5, 20261,001-5,0002,052 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchBhopal, IndiaHQ recorded Nov 5, 20261,001-5,0001,917 contacts →

Exact match

“Transforming Customer Experiences Worldwide** At Technotask, we've embarked on a journey of exponential growth and innovation since our inception in March 2020.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchSan Ramon, CA, United StatesHQ recorded Nov 5, 20261,001-5,0001,563 contacts →

Exact match

“Dialpad is the leading AI-powered communications intelligence platform creating human-first, AI-enhanced solutions that will drive the next wave of how businesses communicate with…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchLondon, United StatesHQ recorded Nov 5, 20261,001-5,0001,384 contacts →

Exact match

“Attentive® knows personalized customer experiences require both powerful technology and the right people behind it.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchSan Francisco, United StatesHQ recorded Nov 5, 20261,001-5,0001,382 contacts →

Exact match

“Talkdesk® is leading a new era in customer experience with Customer Experience Automation (CXA)-a new category and platform designed to automate the full complexity of modern…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchRaleigh, United StatesHQ recorded Nov 5, 20261,001-5,0001,199 contacts →

Exact match

“Bandwidth is the universal communications platform that simplifies how businesses deliver integrated global experiences.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchCambridge, MA, United StatesHQ recorded Nov 5, 2026501-1,0001,054 contacts →

Exact match

“ATG (Nasdaq: ARTG) provides the most advanced cross-channel commerce software and services to fuel the growth of the world’s top brands.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchMumbai, IndiaHQ recorded Nov 5, 20261,001-5,000928 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchCuritiba, BrazilHQ recorded Nov 5, 20261,001-5,000902 contacts →

Exact match

“A dbm Contact Center foi fundada em 1996 e possui sede própria em Curitiba.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchBelo Horizonte, BrazilHQ recorded Nov 5, 2026501-1,000896 contacts →

Exact match

“Inteligência Artificial que entende seu negócio: Atendimento, vendas e cobrança pelo WhatsApp para escalar seus resultados.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchParis, FranceHQ recorded Nov 5, 2026501-1,000889 contacts →

Exact match

“Brevo offers the most intuitive Customer Platform for the sustainable growth of all businesses and organizations (including nonprofits).”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchBellevue, United StatesHQ recorded Nov 5, 2026501-1,000871 contacts →

Exact match

“The collaborative, AI-powered platform for customer conversations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchSao Paulo, BrazilHQ recorded Nov 5, 2026501-1,000785 contacts →

Exact match

“Proporcione experiências pessoais, envolventes e fluidas com o poder de Zenvia Customer Cloud, nossa IA completa que revolucionará a jornada dos seus clientes.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchOmaha, NE, United StatesHQ recorded Nov 5, 20265,001-10,000772 contacts →

Exact match

“West (formerly Intrado Corporation) solutions connect people and organizations at the right time and in the right ways, making those mission-critical connections more relevant…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchSaskatoon, SK, CanadaHQ recorded Nov 5, 2026501-1,000765 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 · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 4,313 customer communication platforms worldwide

See the full list, filter by size, metro and specialty, and access 53,546 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Customer communication platforms worldwide at a glance

As of Nov 5, 2026
35.0%Verified-email coverage
35.5Average contacts per company
11-50Median size (employees)
3.3%Largest-city concentration · Sao Paulo
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
1,818
11-50
1,561
51-200
623
201-500
171
501-1,000
55
1,001-5,000
55
5,001-10,000
8
10001+
10

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for customer communication platforms are linked below.
What qualifies
Company records worldwide whose business descriptions match “customer communication 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. 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 53,546 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.

Customer communication platforms by location

33 lists · largest first

Every Customer communication platforms 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 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 communication platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many customer communication platforms are there worldwide?

RevenueBase identified 4,313 company matches for customer communication platforms worldwide 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?

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

Which country has the most customer communication platforms?

The United States leads with 754 companies, followed by Brazil (453) and India (375). Every customer communication platforms list by country and city is linked on this page.

Which city has the most customer communication platforms?

Sao Paulo leads with 143 company records, followed by London (101) and Bangalore (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 53,546 professional contacts with verified work emails tracked across these 4,313 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.