Company lists · Data refreshed November 2026

Top 25 Virtual call center providers worldwide

Name: Virtual call center providers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 8,266 companies tracked

RevenueBase identified 8,266 company matches for virtual call center providers worldwide as of November 2026 and tracks 576,866 professional contacts across them, including 52,686 with verified work emails. The United States is the largest market and Lahore the largest hub.

This list covers company matches for virtual call 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 November 5, 2026. Country and city lists for virtual call 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 Nov 5, 2026 How this list was built

8,266Companies

576,866Contacts tracked

52,686Verified emails

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The 25 largest virtual call center providers worldwide

Ranked by team size

Top 25 of 8,266 company matches for virtual call center providers 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	TTEC	Exact match	Austin, TX, United StatesHQ recorded Nov 5, 2026	10001+	30,312 contacts →
	Exact match “We’re TTEC (pronounced t.tec).” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Konecta	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	10001+	28,482 contacts →
	Exact match “Konecta is a leading innovative global service provider in customer management business process outsourcing, with passionate employees working in 40 languages across 4 continents…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	VXI Global Solutions	Exact match	Los Angeles, United StatesHQ recorded Nov 5, 2026	10001+	17,251 contacts →
	Exact match “About VXI Global Solutions VXI Global Solutions is a BPO leader in customer service, customer experience, and digital solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Startek	Exact match	Denver, United StatesHQ recorded Nov 5, 2026	10001+	16,728 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 · Nov 5, 2026 · View company records in RevenueBase
5	Ienergizer	Exact match	Noida, IndiaHQ recorded Nov 5, 2026	10001+	15,893 contacts →
	Exact match “iEnergizer is a leading Business Process Outsourcing provider (“BPO”) of customer management solutions dedicated to delivering performance while actively supporting and advocating…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Comdata Group	Exact match	Corsico, ItalyHQ recorded Nov 5, 2026	10001+	10,448 contacts →
	Exact match “We're KONECTA now!” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Turkcell Global Bilgi	Exact match	Beyoglu, TürkiyeHQ recorded Nov 5, 2026	10001+	6,889 contacts →
	Exact match “Bir Turkcell grup şirketi olarak yılında kurulduğumuzda amacımız hep eşsiz bir müşteri deneyimi yaşatmaktı.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Afni, INC	Exact match	Bloomington, United StatesHQ recorded Nov 5, 2026	10001+	6,716 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 · Nov 5, 2026 · View company records in RevenueBase
9	Emtelco S.A	Exact match	Medellín, ColombiaHQ recorded Nov 5, 2026	10001+	6,207 contacts →
	Exact match “Maximizamos el valor de cada contacto de las empresas con sus clientes, gestionando los procesos de relacionamiento a través de canales tefónicos, virtuales y presenciales.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Call Center Services International	Exact match	San Diego, United StatesHQ recorded Nov 5, 2026	1,001-5,000	4,858 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 · Nov 5, 2026 · View company records in RevenueBase
11	Apex America	Exact match	Córdoba, ArgentinaHQ recorded Nov 5, 2026	10001+	4,849 contacts →
	Exact match “At Apex America, we are a Next Generation BPO and a global strategic partner specialized in elevating customer service standards.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Continuum Global Solutions	Exact match	Dallas, TX, United StatesHQ recorded Nov 5, 2026	5,001-10,000	4,798 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 · Nov 5, 2026 · View company records in RevenueBase
13	Mindbridge	Exact match	Lahore, PakistanHQ recorded Nov 5, 2026	5,001-10,000	4,730 contacts →
	Exact match “Founded in 2004, Mindbridge (Private) Limited is Pakistan’s largest BPO company, operating with a capacity.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Vikstar Contact Center	Exact match	Sao Paulo, BrazilHQ recorded Nov 5, 2026	10001+	4,363 contacts →
	Exact match “Vikstar is one of the biggest contact centers of Brazil.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	GSS Global Sales Solutions	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	10001+	4,355 contacts →
	Exact match “is a tech company specialized in providing, and for.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Sercom	Exact match	Taboão Da Serra, BrazilHQ recorded Nov 5, 2026	5,001-10,000	4,283 contacts →
	Exact match “Founded in 1993, since the beginning Sercom has stood out in the Contact Center Services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Raya CX	Exact match	Giza, EgyptHQ recorded Nov 5, 2026	5,001-10,000	4,129 contacts →
	Exact match “RAYA Customer Experience provides next-generation BPO and customer experience management on behalf of clients across various industries.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Teleperformance Global Services	Exact match	Kolkata, IndiaHQ recorded Nov 5, 2026	1,001-5,000	4,105 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	EPX Eperformax Contact Centers	Exact match	Pasay City, PhilippinesHQ recorded Nov 5, 2026	5,001-10,000	3,904 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 · Nov 5, 2026 · View company records in RevenueBase
20	Quantrics Enterprises INC	Exact match	Taytay, PhilippinesHQ recorded Nov 5, 2026	5,001-10,000	3,611 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 · Nov 5, 2026 · View company records in RevenueBase
21	Telvista	Exact match	Dallas, TX, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,517 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 · Nov 5, 2026 · View company records in RevenueBase
22	Extensya	Exact match	Amman, JordanHQ recorded Nov 5, 2026	1,001-5,000	3,426 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 · Nov 5, 2026 · View company records in RevenueBase
23	Contax S.A	Exact match	Sao Paulo, BrazilHQ recorded Nov 5, 2026	10001+	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
24	Stream Global Services	Exact match	Eagan, BC, United StatesHQ recorded Nov 5, 2026	10001+	3,230 contacts →
	Exact match “Stream Global Services is a premium business process outsource (BPO) service provider specializing in customer relationship management solutions including sales, customer care…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Brasil Center Comunicações	Exact match	n/a	5,001-10,000	3,221 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “virtual call center providers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 8,266 virtual call center providers worldwide

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Virtual call center providers worldwide at a glance

As of Nov 5, 2026

9.1%Verified-email coverage

69.8Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · Lahore

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

1,765

11-50

2,848

51-200

2,051

201-500

751

501-1,000

362

1,001-5,000

323

5,001-10,000

10001+

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 virtual call center providers are linked below.
What qualifies: Company records worldwide whose business descriptions match “virtual call 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 52,686 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.

Virtual call center providers by location

48 lists · largest first

Every Virtual call 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 “virtual call center providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many virtual call center providers are there worldwide?

RevenueBase identified 8,266 company matches for virtual call center providers 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?

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

Which country has the most virtual call center providers?

The United States leads with 1,541 companies, followed by India (596) and Pakistan (517). Every virtual call center providers list by country and city is linked on this page.

Which city has the most virtual call center providers?

Lahore leads with 169 company records, followed by Rawalpindi (109) and London (84).

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 52,686 professional contacts with verified work emails tracked across these 8,266 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.