Company lists · Data refreshed November 2026

Top 25 Phone support services worldwide

RevenueBase identified 6,432 company matches for phone support services worldwide as of November 2026 and tracks 445,643 professional contacts across them, including 41,306 with verified work emails. The United States is the largest market and Lahore the largest hub.

This list covers company matches for phone support services 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 6, 2026. Country and city lists for phone support services 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 6, 2026 How this list was built
6,432Companies
445,643Contacts tracked
41,306Verified emails
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The 25 largest phone support services worldwide

Ranked by team size
Top 25 of 6,432 company matches for phone support services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchMadrid, SpainHQ recorded Nov 6, 202610001+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 6, 2026 · View company records in RevenueBase
2Exact matchLos Angeles, United StatesHQ recorded Nov 6, 202610001+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 6, 2026 · View company records in RevenueBase
3Exact matchNoida, IndiaHQ recorded Nov 6, 202610001+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 6, 2026 · View company records in RevenueBase
4Exact matchCorsico, ItalyHQ recorded Nov 6, 202610001+10,448 contacts →

Exact match

“We're KONECTA now!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPlantation, United StatesHQ recorded Nov 6, 202610001+6,919 contacts →

Exact match

“Everise delivers happiness to millions of customers around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBeyoglu, TürkiyeHQ recorded Nov 6, 202610001+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 6, 2026 · View company records in RevenueBase
7Exact matchBloomington, United StatesHQ recorded Nov 6, 202610001+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 6, 2026 · View company records in RevenueBase
8Exact matchMedellín, ColombiaHQ recorded Nov 6, 202610001+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 6, 2026 · View company records in RevenueBase
9Exact matchCórdoba, ArgentinaHQ recorded Nov 6, 202610001+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 6, 2026 · View company records in RevenueBase
10Exact matchDallas, TX, United StatesHQ recorded Nov 6, 20265,001-10,0004,798 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 6, 2026 · View company records in RevenueBase
11Exact matchMumbai, IndiaHQ recorded Nov 6, 202610001+4,772 contacts →

Exact match

“Startek is a leading global provider of technology-enabled business process outsourcing solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLahore, PakistanHQ recorded Nov 6, 20265,001-10,0004,730 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 6, 2026 · View company records in RevenueBase
13Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202610001+4,363 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMadrid, SpainHQ recorded Nov 6, 202610001+4,355 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchTaboão Da Serra, BrazilHQ recorded Nov 6, 20265,001-10,0004,283 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 6, 2026 · View company records in RevenueBase
16Exact matchGiza, EgyptHQ recorded Nov 6, 20265,001-10,0004,129 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 6, 2026 · View company records in RevenueBase
17Exact matchKolkata, IndiaHQ recorded Nov 6, 20261,001-5,0004,105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchPasay City, PhilippinesHQ recorded Nov 6, 20265,001-10,0003,904 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 6, 2026 · View company records in RevenueBase
19Exact matchTaytay, PhilippinesHQ recorded Nov 6, 20265,001-10,0003,611 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 6, 2026 · View company records in RevenueBase
20Exact matchDallas, TX, United StatesHQ recorded Nov 6, 20261,001-5,0003,517 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 6, 2026 · View company records in RevenueBase
21Exact matchEagan, BC, United StatesHQ recorded Nov 6, 202610001+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 6, 2026 · View company records in RevenueBase
22Exact matchn/a5,001-10,0003,221 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBerwyn, PA, United StatesHQ recorded Nov 6, 20265,001-10,0003,116 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 · Nov 6, 2026 · View company records in RevenueBase
24Exact matchUnited StatesHQ recorded Nov 6, 202610001+2,823 contacts →

Exact match

“Expert Global Solutions is now part of Alorica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 20265,001-10,0002,793 contacts →

Exact match

“Merchants is a leading customer management partner specialising in business process outsourcing (BPO) that delivers customer experience and customer interactions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 6,432 phone support services worldwide

See the full list, filter by size, metro and specialty, and access 41,306 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Phone support services worldwide at a glance

As of Nov 6, 2026
9.3%Verified-email coverage
69.3Average contacts per company
11-50Median size (employees)
2.5%Largest-city concentration · Lahore
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,116
11-50
2,139
51-200
1,714
201-500
693
501-1,000
315
1,001-5,000
287
5,001-10,000
54
10001+
51

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 phone support services are linked below.
What qualifies
Company records worldwide whose business descriptions match “phone support services” 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 41,306 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 6, 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.

Phone support services by location

31 lists · largest first

Every Phone support services 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 “phone support services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many phone support services are there worldwide?

RevenueBase identified 6,432 company matches for phone support services 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?

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

Which country has the most phone support services?

The United States leads with 965 companies, followed by India (578) and Pakistan (471). Every phone support services list by country and city is linked on this page.

Which city has the most phone support services?

Lahore leads with 160 company records, followed by Rawalpindi (106) and London (63).

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 41,306 professional contacts with verified work emails tracked across these 6,432 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 6, 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.