Company lists · Data refreshed October 2026

Top 25 Cloud call center software worldwide

RevenueBase identified 1,978 company matches for cloud call center software worldwide as of October 2026 and tracks 58,990 professional contacts across them, including 18,875 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for cloud call center software 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 October 1, 2026. Country and city lists for cloud call center software 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 Oct 1, 2026 How this list was built
1,978Companies
58,990Contacts tracked
18,875Verified emails
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The 25 largest cloud call center software worldwide

Ranked by team size
Top 25 of 1,978 company matches for cloud call center software worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 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 matchBelmont, CA, United StatesHQ recorded Oct 1, 20265,001-10,0006,431 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 · Oct 1, 2026 · View company records in RevenueBase
2Exact matchHolmdel, NJ, United StatesHQ recorded Oct 1, 20261,001-5,0003,429 contacts →

Exact match

“We’re making communications more flexible, intelligent, and personal, to help enterprises the world over stay ahead.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchCampbell, CA, United StatesHQ recorded Oct 1, 20261,001-5,0002,444 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchBoston, MA, United StatesHQ recorded Oct 1, 20261,001-5,0002,320 contacts →

Exact match

“As the leader in cloud communications and IT, GoTo addresses real-world challenges with practical innovations and a customer-first mindset.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchMunich, GermanyHQ recorded Oct 1, 20265,001-10,0001,812 contacts →

Exact match

“Unify is now part of Mitel!”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchSunnyvale, CA, United StatesHQ recorded Oct 1, 20261,001-5,0001,254 contacts →

Exact match

“Intermedia is the cloud communications company that helps over businesses connect better, from wherever, through our AI-powered platform that includes voice, video conferencing…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Oct 1, 2026501-1,000804 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchBangalore, IndiaHQ recorded Oct 1, 2026201-500630 contacts →

Exact match

“Kapture CX is an Enterprise-grade vSaaS customer experience automation platform with a deep focus on customer support.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchChicago, IL, United StatesHQ recorded Oct 1, 202651-200567 contacts →

Exact match

“Call Center Studio is an AI-powered, cloud-based contact center software that redefines how businesses engage with their customers.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Oct 1, 2026501-1,000561 contacts →

Exact match

“We build fully managed call centers: Software build outs Hiring Training Integrations”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchHyderabad, IndiaHQ recorded Oct 1, 2026201-500527 contacts →

Exact match

“Telecom Applications are one of the fastest-changing technologies of today.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchKingston Upon Hull, United KingdomHQ recorded Oct 1, 20261,001-5,000490 contacts →

Exact match

“Give your customers a voice with ResQ.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Oct 1, 20261,001-5,000433 contacts →

Exact match

“We've moved!”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchSanta Ana, CA, United StatesHQ recorded Oct 1, 2026501-1,000431 contacts →

Exact match

“About : Ansafone is the leading outsourced contact center solution provider for companies in the US and Canada and maintains international alliances for global reach.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchBracknell, United KingdomHQ recorded Oct 1, 2026501-1,000428 contacts →

Exact match

“Content Guru is a leading global cloud Customer Experience (CX) technology provider and the only ‘challenger’ named in the 2025 Gartner® CCaaS Magic Quadrant™’.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchBoulogne-billancourt, FranceHQ recorded Oct 1, 2026501-1,000408 contacts →

Exact match

“Omnichannel CCaaS Platform | Customer Experience, AI & Sovereign Cloud Are your customer service costs increasing?”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchAustin, TX, United StatesHQ recorded Oct 1, 2026201-500401 contacts →

Exact match

“Lifesize delivers immersive communication experiences for the global enterprise.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchLund, SwedenHQ recorded Oct 1, 2026201-500399 contacts →

Exact match

“Lime is the Customer Journey platform that helps companies make their customers fall in love with them.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Oct 1, 2026201-500398 contacts →

Exact match

“Founded in 2008 by veteran telecommunication entrepreneurs, Phone.com provides over businesses with comprehensive, flexible, and reliable cloud-based communication and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchSao Paulo, BrazilHQ recorded Oct 1, 2026201-500359 contacts →

Exact match

“SCOOTO was created to solve customer services for growing companies who lose control over their customers once they start to grow.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchSanta Clara, CA, United StatesHQ recorded Oct 1, 2026501-1,000307 contacts →

Exact match

“KANA understands the value of great Customer Service experiences.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchSan Francisco, CA, United StatesHQ recorded Oct 1, 2026201-500286 contacts →

Exact match

“UJET is the Experience Center: a cloud-native platform that replaces the fragmented contact center stack.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchHerndon, VA, United StatesHQ recorded Oct 1, 202651-200285 contacts →

Exact match

“Ultatel delivers a powerful yet easy-to-use cloud communications suite that scales with your business-combining voice, SMS, chat, video, online fax, and contact center…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchRio De Janeiro, BrazilHQ recorded Oct 1, 2026201-500283 contacts →

Exact match

“Call / Contact Center Comunicações Unificadas & Colaboração Infraestrutura em TIC Painel Indicador de Performance - informações em tempo real 24x7 para sua gestão Call /Call /…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchIndianapolis, IN, United StatesHQ recorded Oct 1, 20261,001-5,000275 contacts →

Exact match

“Genesys acquired Interactive Intelligence in December 2016.”

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

Showing 25 of 1,978 cloud call center software worldwide

See the full list, filter by size, metro and specialty, and access 18,875 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cloud call center software worldwide at a glance

As of Oct 1, 2026
32.0%Verified-email coverage
29.8Average contacts per company
11-50Median size (employees)
2.5%Largest-city concentration · Sao Paulo
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
607
11-50
835
51-200
360
201-500
103
501-1,000
33
1,001-5,000
27
5,001-10,000
4
10001+
4

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 cloud call center software are linked below.
What qualifies
Company records worldwide whose business descriptions match “cloud call center software” 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 18,875 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 October 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.

Cloud call center software by location

14 lists · largest first

Every Cloud call center software 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 “cloud call center software”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cloud call center software are there worldwide?

RevenueBase identified 1,978 company matches for cloud call center software worldwide as of October 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?

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

Which country has the most cloud call center software?

The United States leads with 585 companies, followed by Brazil (175) and the United Kingdom (167). Every cloud call center software list by country and city is linked on this page.

Which city has the most cloud call center software?

Sao Paulo leads with 49 company records, followed by London (36) and Noida (21).

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 18,875 professional contacts with verified work emails tracked across these 1,978 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 October 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.