Company lists · Data refreshed September 2026

Top 25 Cloud call center platforms worldwide

RevenueBase identified 3,972 company matches for cloud call center platforms worldwide as of September 2026 and tracks 185,098 professional contacts across them, including 36,059 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for cloud call center 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 September 27, 2026. Country and city lists for cloud call center 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 Sep 27, 2026 How this list was built
3,972Companies
185,098Contacts tracked
36,059Verified emails
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The 25 largest cloud call center platforms worldwide

Ranked by team size
Top 25 of 3,972 company matches for cloud call center platforms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchDenver, United StatesHQ recorded Sep 27, 202610001+14,976 contacts →

Exact match

“A global customer experience (CX) management solutions provider, Startek® delivers best-in-class omnichannel CX, digital transformation and enterprise tech services for leading…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchBelmont, CA, United StatesHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
3Exact matchBeyoglu, TürkiyeHQ recorded Sep 27, 202610001+6,167 contacts →

Exact match

“Bir Turkcell grup şirketi olarak yılında kurulduğumuzda amacımız hep eşsiz bir müşteri deneyimi yaşatmaktı.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchDallas, TX, United StatesHQ recorded Sep 27, 20265,001-10,0004,342 contacts →

Exact match

“With a fresh name and decades of contact center expertise, we’re dedicated to collaborative partnerships, understanding your unique needs, and tailoring solutions for an enhanced…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Sep 27, 202610001+3,716 contacts →

Exact match

“is a tech company specialized in providing, and for.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchHolmdel, NJ, United StatesHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
7Exact matchTaytay, PhilippinesHQ recorded Sep 27, 20265,001-10,0003,132 contacts →

Exact match

“In the Philippines, Quantrics by NQX is redefining customer experience by bringing together the expertise of a global leader and the passion of world-class Filipino talent.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchDallas, TX, United StatesHQ recorded Sep 27, 20261,001-5,0003,122 contacts →

Exact match

“Email: info@Telvista.com Telvista is a premier provider of contact solutions that drive customer loyalty and create competitive advantage for our clients.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchBerwyn, PA, United StatesHQ recorded Sep 27, 20265,001-10,0002,774 contacts →

Exact match

“Advanced Call Center Technologies, LLC (ACT) is a premier provider of domestic (USA), near shore and far shore outsourced call center services to the financial services, mortgage…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchSan Ramon, CA, United StatesHQ recorded Sep 27, 20261,001-5,0002,584 contacts →

Exact match

“Five9 provides a comprehensive suite of CX solutions, powered by Five9 Genius AI, to elevate customer experiences that deliver better business outcomes in the era of The New CX.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchCampbell, CA, United StatesHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
12Exact matchBoston, MA, United StatesHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
13Exact matchBuenos Aires, ArgentinaHQ recorded Sep 27, 20261,001-5,0002,221 contacts →

Exact match

“Somos la compañía líder en Servicios Next Gen de Contact Center, Business Process Outsourcing (BPO) y Customer Experience (CX).”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 2026n/a2,026 contacts →

Exact match

“Human-Led, Tech-Powered Customer Service For over 25 years, Liveops has redefined customer support by combining technology with real human connection.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 27, 20261,001-5,0001,991 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 · Sep 27, 2026 · View company records in RevenueBase
16Exact matchMakati City, PhilippinesHQ recorded Sep 27, 202610001+1,990 contacts →

Exact match

“Sitel Philippines (formerly SYKES).”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchMunich, GermanyHQ recorded Sep 27, 20265,001-10,0001,812 contacts →

Exact match

“Unify is now part of Mitel!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchAkron, OH, United StatesHQ recorded Sep 27, 20261,001-5,0001,764 contacts →

Exact match

“InfoCision is an award-winning contact center partner trusted by leading brands for over 40 years.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchBhopal, IndiaHQ recorded Sep 27, 20261,001-5,0001,762 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 · Sep 27, 2026 · View company records in RevenueBase
20Exact matchWaco, TX, United StatesHQ recorded Sep 27, 20265,001-10,0001,710 contacts →

Exact match

“Support Services Group (SSG) helps businesses accelerate growth and earn customers for life through high-touch, outsourced engagement center services.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchDurban, South AfricaHQ recorded Sep 27, 20261,001-5,0001,453 contacts →

Exact match

“One voice – let us be your voice.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchCuritiba, BrazilHQ recorded Sep 27, 20261,001-5,0001,312 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchTucson, AZ, United StatesHQ recorded Sep 27, 20261,001-5,0001,275 contacts →

Exact match

“BroadPath provides transformational outsourcing and managed services powered by our one-of-a-kind, 100% remote business model.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchSunnyvale, CA, United StatesHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
25Exact matchBarueri, BrazilHQ recorded Sep 27, 20261,001-5,0001,234 contacts →

Exact match

“A Parla!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 3,972 cloud call center platforms worldwide

See the full list, filter by size, metro and specialty, and access 36,059 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cloud call center platforms worldwide at a glance

As of Sep 27, 2026
19.5%Verified-email coverage
46.6Average contacts per company
11-50Median size (employees)
1.7%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
1,039
11-50
1,503
51-200
876
201-500
269
501-1,000
117
1,001-5,000
124
5,001-10,000
19
10001+
19

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 platforms are linked below.
What qualifies
Company records worldwide whose business descriptions match “cloud call center 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 36,059 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 27, 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 platforms by location

20 lists · largest first

Every Cloud call center platforms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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

How many cloud call center platforms are there worldwide?

RevenueBase identified 3,972 company matches for cloud call center platforms worldwide 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?

Startek 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 platforms?

The United States leads with 924 companies, followed by India (305) and the United Kingdom (222). Every cloud call center platforms list by country and city is linked on this page.

Which city has the most cloud call center platforms?

London leads with 67 company records, followed by Sao Paulo (65) and Lahore (35).

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 36,059 professional contacts with verified work emails tracked across these 3,972 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 27, 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.