Company lists · Data refreshed September 2026

Top 25 Omnichannel contact center providers worldwide

RevenueBase identified 3,288 company matches for omnichannel contact center providers worldwide as of September 2026 and tracks 228,931 professional contacts across them, including 27,948 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for omnichannel contact center providers 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 29, 2026. Country and city lists for omnichannel contact center providers 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 29, 2026 How this list was built
3,288Companies
228,931Contacts tracked
27,948Verified emails
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The 25 largest omnichannel contact center providers worldwide

Ranked by team size
Top 25 of 3,288 company matches for omnichannel contact center providers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 29, 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 29, 2026 · View company records in RevenueBase
2Exact matchBelmont, CA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
3Exact matchBloomington, IL, United StatesHQ recorded Sep 29, 202610001+5,553 contacts →

Exact match

“When people reach for their phones, use laptops, or grab their tablets, Afni's contact center teams are there to provide prompt and friendly help.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchSan Diego, CA, United StatesHQ recorded Sep 29, 20261,001-5,0004,561 contacts →

Exact match

“CCSI specializes in high‑performance, cost‑efficient contact center solutions supported by a world‑class bilingual workforce and state‑of‑the‑art infrastructure in Mexico.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchDallas, TX, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
6Exact matchSao Paulo, BrazilHQ recorded Sep 29, 202610001+3,914 contacts →

Exact match

“Vikstar is one of the biggest contact centers of Brazil.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchTaboão Da Serra, BrazilHQ recorded Sep 29, 20265,001-10,0003,785 contacts →

Exact match

“Founded in 1993, since the beginning Sercom has stood out in the Contact Center Services.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchPoa, BrazilHQ recorded Sep 29, 20265,001-10,0003,333 contacts →

Exact match

“A TMKT é uma empresa de Contact Center que foi fundada em 1991 e se tornou uma referência no mercado de Customer Experience (CX).”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchDallas, TX, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
10Exact matchAmman, JordanHQ recorded Sep 29, 20261,001-5,0003,071 contacts →

Exact match

“Extensya is a company that primarily specializes in contact management solutions and business process outsourcing services, with a network of fully equipped contact centers in…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchPasay City, PhilippinesHQ recorded Sep 29, 20265,001-10,0003,061 contacts →

Exact match

“ePerformax is a high-performing contact center & BPO that provides world-class, omnichannel service and support to a select group of Fortune companies and their customers.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchMontes Claros, BrazilHQ recorded Sep 29, 20261,001-5,0002,951 contacts →

Exact match

“A VGX, é uma empresa 100% brasileira, com 13 anos de atuação e mais de 5.100 colaboradores, consolidada como referência em soluções de Customer Experience,Cobrança, Atendimento…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchMilano, ItalyHQ recorded Sep 29, 202610001+2,810 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchCampbell, CA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
15Exact matchBarcelona, SpainHQ recorded Sep 29, 20265,001-10,0002,358 contacts →

Exact match

“Emergia is a multinational company specialized in the comprehensive customer relationship management in the field of Interactive Contact Center, the business process outsourcing…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchBogotá D.c, ColombiaHQ recorded Sep 29, 20265,001-10,0002,342 contacts →

Exact match

“Más que un contact center y BPO, somos el partner que asegura que la experiencia de tus clientes sea increíble.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchGuatemala, United StatesHQ recorded Sep 29, 202610001+2,245 contacts →

Exact match

“OneLink is the premier partner in outsourced omnichannel customer experience services.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchBuenos Aires, ArgentinaHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
19Exact matchGoiania, BrazilHQ recorded Sep 29, 20265,001-10,0002,176 contacts →

Exact match

“Somos a Tahto, uma empresa referência em soluções de CX e BPO.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
21Exact matchAkron, OH, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
22Exact matchLuanda, AngolaHQ recorded Sep 29, 20261,001-5,0001,762 contacts →

Exact match

“Ucall é a empresa líder em Contact Center e Experiência de Cliente em Angola.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchBhopal, IndiaHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
24Exact matchBoca Raton, FL, United StatesHQ recorded Sep 29, 20265,001-10,0001,741 contacts →

Exact match

“Award-winning outsourcing partner with two decades of experience operating an exclusively nearshore strategy that delivers better performance, close to home, and at a lower cost.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchAustin, TX, United StatesHQ recorded Sep 29, 20261,001-5,0001,711 contacts →

Exact match

“SupportNinja provides customer experience and back-office support services for tech companies and startups around the world.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 3,288 omnichannel contact center providers worldwide

See the full list, filter by size, metro and specialty, and access 27,948 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Omnichannel contact center providers worldwide at a glance

As of Sep 29, 2026
12.2%Verified-email coverage
69.6Average contacts per company
11-50Median size (employees)
2.0%Largest-city concentration · Sao Paulo
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
655
11-50
1,094
51-200
812
201-500
321
501-1,000
154
1,001-5,000
183
5,001-10,000
38
10001+
23

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 omnichannel contact center providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “omnichannel contact center providers” 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 27,948 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 29, 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.

Omnichannel contact center providers by location

25 lists · largest first

Every Omnichannel contact center providers 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 “omnichannel contact center providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many omnichannel contact center providers are there worldwide?

RevenueBase identified 3,288 company matches for omnichannel contact center providers 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 omnichannel contact center providers?

The United States leads with 571 companies, followed by Brazil (212) and India (175). Every omnichannel contact center providers list by country and city is linked on this page.

Which city has the most omnichannel contact center providers?

Sao Paulo leads with 67 company records, followed by London (36) and Madrid (28).

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 27,948 professional contacts with verified work emails tracked across these 3,288 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 29, 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.