Company lists · Data refreshed September 2026

Top 25 Call center software companies worldwide

RevenueBase identified 1,721 call center software companies worldwide as of September 2026 and tracks 62,984 professional contacts across them, including 11,222 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers call center 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 14, 2026. Country and city lists for call center 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 14, 2026 86% judged on-target in blind review
1,721Companies
62,984Contacts tracked
11,222Verified emails
0Mobile numbers
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The 25 largest call center software companies worldwide

Ranked by team size
Top 25 of 1,721 call center software companies worldwide, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to call center 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
1Indirect evidenceSan Mateo, CA, United StatesHQ checked Sep 14, 20261,001-5,0007,034 contacts →

Indirect evidence

“Freshworks Inc.(NASDAQ: FRSH) is the AI-powered, unified service operations platform that is fast to deploy, intuitive to use, and enables every employee to be more productive.”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceBeyoglu, TürkiyeHQ checked Sep 14, 202610001+6,167 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
3Partial evidenceHyderabad, IndiaHQ checked Sep 14, 20261,001-5,0001,076 contacts →

Partial evidence

“Even the markets know that we’re the good call’!”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceHorsham, PA, United StatesHQ checked Sep 14, 2026501-1,000883 contacts →

Indirect evidence

“If you are interested in growing your business or increasing efficiency, AnswerNet has the expertise, technology, and people to help you take your company to new heights!”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceBoulder, CO, United StatesHQ checked Sep 14, 20261,001-5,000878 contacts →

Indirect evidence

“Decades of expertise distilled into innovative workforce tools.”

Source: RevenueBase Database · checked Sep 14, 2026
6Partial evidenceFortaleza, BrazilHQ checked Sep 14, 20261,001-5,000701 contacts →

Partial evidence

“A VECTOR SERVIÇOS é uma empresa especializada na criação, implantação e gestão de serviços de Contact Center.”

Source: RevenueBase Database · checked Sep 14, 2026
7Strong evidenceChicago, IL, United StatesHQ checked Sep 14, 202651-200567 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
8Strong evidenceHouston, TX, United StatesHQ checked Sep 14, 2026501-1,000561 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceHyderabad, IndiaHQ checked Sep 14, 2026201-500527 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceKingston Upon Hull, United KingdomHQ checked Sep 14, 20261,001-5,000490 contacts →

Indirect evidence

“Give your customers a voice with ResQ.”

Source: RevenueBase Database · checked Sep 14, 2026
11Partial evidenceAtlanta, GA, United StatesHQ checked Sep 14, 20261,001-5,000478 contacts →

Partial evidence

“Alvaria CX, the global leader in contact center solutions, emerged from the 2021 merger of Noble Systems and Aspect, bringing over 50 years of CX innovation.”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceBangalore, IndiaHQ checked Sep 14, 202651-200467 contacts →

Indirect evidence

“WyzMindz Solutions Pvt.”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceLondon, United KingdomHQ checked Sep 14, 20261,001-5,000433 contacts →

Indirect evidence

“We've moved!”

Source: RevenueBase Database · checked Sep 14, 2026
14Partial evidenceSanta Ana, CA, United StatesHQ checked Sep 14, 2026501-1,000431 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
15Partial evidenceBloomington, MN, United StatesHQ checked Sep 14, 20261,001-5,000354 contacts →

Partial evidence

“For over 35 years, The Connection has made a name for ourselves becoming one of the top industry partners to Fortune 500 companies looking to outsource their contact center…”

Source: RevenueBase Database · checked Sep 14, 2026
16Strong evidenceIowa City, United StatesHQ checked Sep 14, 20261,001-5,000346 contacts →

Strong evidence

“As a distinguished global leader in call center outsourcing, OnBrand24 takes pride in its 30-year legacy of delivering exceptional inbound and outbound call center services across…”

Source: RevenueBase Database · checked Sep 14, 2026
17Partial evidenceBenito Juárez, MexicoHQ checked Sep 14, 20261,001-5,000338 contacts →

Partial evidence

“29 años de experiencia brindando soluciones integrales de contact center que superen las expectativas de nuestros clientes, a través de un equipo altamente capacitado, tecnología…”

Source: RevenueBase Database · checked Sep 14, 2026
18Indirect evidenceMumbai, IndiaHQ checked Sep 14, 2026201-500332 contacts →

Indirect evidence

“The SmartConnect!”

Source: RevenueBase Database · checked Sep 14, 2026
19Partial evidenceBuenos Aires, ArgentinaHQ checked Sep 14, 2026501-1,000330 contacts →

Partial evidence

“Diseñamos estrategias a medida y nos destacamos por ofrecer calidad, flexibilidad y eficiencia en nuestros servicios de Contact Center.”

Source: RevenueBase Database · checked Sep 14, 2026
20Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 14, 2026501-1,000307 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
21Indirect evidenceFort Lauderdale, FL, United StatesHQ checked Sep 14, 20261,001-5,000301 contacts →

Indirect evidence

“OutPLEX is a leading international digital and voice customer contact management services organization developing solutions for the world's most trusted brands.”

Source: RevenueBase Database · checked Sep 14, 2026
22Indirect evidenceCiudad De Buenos Aires, ArgentinaHQ checked Sep 14, 20265,001-10,000289 contacts →

Indirect evidence

“Aegis Argentina inició su operación en 1994 en la ciudad de Buenos Aires, bajo el nombre de Actionline, como una compañía nacional de 200 empleados dedicada a la prestación de…”

Source: RevenueBase Database · checked Sep 14, 2026
23Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 2026201-500286 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
24Indirect evidenceİzmir, TürkiyeHQ checked Sep 14, 2026501-1,000263 contacts →

Indirect evidence

“CeyBer kurulduğu 2016 yılından beri Çağrı Merkezi hizmeti vermektedir.”

Source: RevenueBase Database · checked Sep 14, 2026
25Partial evidenceCuritiba, BrazilHQ checked Sep 14, 2026201-500261 contacts →

Partial evidence

“Desde 1987 a TELEDATA é referência em soluções para contact center, conectando empresas e clientes com tecnologias omnichannel.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 1,721 call center software companies worldwide

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Call center software companies worldwide at a glance

As of Sep 14, 2026
17.8%Verified-email coverage
36.6Average contacts per company
11-50Median size (employees)
4.3%Largest-city concentration · Sao Paulo
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
409
11-50
667
51-200
375
201-500
131
501-1,000
77
1,001-5,000
53
5,001-10,000
4
10001+
4

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 call center 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
16 countries, largest first: the United States, India, Brazil, the United Kingdom, Türkiye, Canada, Germany, Italy, France, the Philippines and 6 more. Country and city lists for call center software companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “call center 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 call center 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 call center 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, 11,222 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 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.

Call center software companies by location

18 lists · largest first

Every Call center 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 call center 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 call center software companies are there worldwide?

RevenueBase identified 1,721 call center 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?

Freshworks, headquartered in San Mateo, tops this list with the largest team on record.

Which country has the most call center software companies?

The United States leads with 559 companies, followed by India (224) and Brazil (187). Every call center software companies list by country and city is linked on this page.

Which city has the most call center software companies?

Sao Paulo leads with 74 headquartered companies, followed by London (31) and Istanbul (27).

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 11,222 verified decision-maker contacts tracked across these 1,721 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 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.