Company lists · Data refreshed November 2026

Top 25 Tech support call centers worldwide

RevenueBase identified 1,403 company matches for tech support call centers worldwide as of November 2026 and tracks 43,151 professional contacts across them, including 3,577 with verified work emails. The United States is the largest market and Lahore the largest hub.

This list covers company matches for tech support call centers 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 tech support call centers 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
1,403Companies
43,151Contacts tracked
3,577Verified emails
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The 25 largest tech support call centers worldwide

Ranked by team size
Top 25 of 1,403 company matches for tech support call centers 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchTaboão Da Serra, BrazilHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
2Exact matchMilan, ItalyHQ recorded Nov 5, 202610001+3,282 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchAustin, TX, United StatesHQ recorded Nov 5, 20261,001-5,0002,070 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 · Nov 5, 2026 · View company records in RevenueBase
4Exact matchBhopal, IndiaHQ recorded Nov 5, 20261,001-5,0001,917 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 · Nov 5, 2026 · View company records in RevenueBase
5Exact matchHorsham, PA, United StatesHQ recorded Nov 5, 2026501-1,000946 contacts →

Exact match

“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!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchCuritiba, BrazilHQ recorded Nov 5, 20261,001-5,000902 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchSan Marcos, TX, United StatesHQ recorded Nov 5, 20261,001-5,000587 contacts →

Exact match

“teleNetwork is a leading provider of outsourced customer service, technical support, and sales enablement solutions for technology products and services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchSão Paulo, BrazilHQ recorded Nov 5, 2026201-500556 contacts →

Exact match

“A HOME AGENT S.A.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchSan Marcos, TX, United StatesHQ recorded Nov 5, 20261,001-5,000513 contacts →

Exact match

“OneSupport is a leading provider of customer experience, technical support, and sales enablement solutions for technology products and services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchSanto Domingo, Dominican RepublicHQ recorded Nov 5, 20265,001-10,000502 contacts →

Exact match

“In 2006, Advensus embarked on its journey in the Dominican Republic, initially known as Nearshore, with a modest 100 telemarketing positions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchCairo, EgyptHQ recorded Nov 5, 20261,001-5,000443 contacts →

Exact match

“Proper Business solutions is offering a comprehensive suite of customer care call center services, outbound and lead generation, back-office and data processing solutions to…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchBloomington, MN, United StatesHQ recorded Nov 5, 20261,001-5,000398 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchIowa City, United StatesHQ recorded Nov 5, 20261,001-5,000378 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchOsnabrück, GermanyHQ recorded Nov 5, 20261,001-5,000319 contacts →

Exact match

“KIKXXL wurde von Andreas Kremer gegründet.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchSanto Domingo, IndiaHQ recorded Nov 5, 2026501-1,000303 contacts →

Exact match

“VIXICOM is a leading-edge contact center with over 45 years of combined industry expertise.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchNetanya, IsraelHQ recorded Nov 5, 2026501-1,000238 contacts →

Exact match

“כלנית שהינה חלק מקבוצת ONE, מובילה בתחום ניהול ותפעול מוקדים, שרותי המומחים, תמיכה ושירות למעלה משני עשורים, בעזרת צוות המקצוענים שלנו, שמאפשרים לנו להציע את השירות הטוב ביותר…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchOstim Osb, TürkiyeHQ recorded Nov 5, 2026501-1,000235 contacts →

Exact match

“Günümüz teknolojik gelişmeleri ve iletişim kanalları sayesinde son kullanıcılar çok daha hızlı bir şekilde işlemlerini sonlandırabilmektedir.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchToronto, ON, CanadaHQ recorded Nov 5, 2026501-1,000231 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchJacksonville, FL, United StatesHQ recorded Nov 5, 2026501-1,000227 contacts →

Exact match

“With nine call centers located in America, El Salvador, Nicaragua, the Dominican Republic and the Philippines, Bernard works with some of America's largest companies to provide…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchMakati City, PhilippinesHQ recorded Nov 5, 20261,001-5,000223 contacts →

Exact match

“Support Services Group is a global, omnichannel contact center solutions company founded in 1998 with headquarters in Waco, Texas.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchNaucalpan De Juárez, MexicoHQ recorded Nov 5, 20261,001-5,000222 contacts →

Exact match

“Somos un Contact Center Omnicanal Expertos en atención al cliente, soporte técnico y ventas, entre otros servicios, con los que podemos perfilar tu solución de contacto.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchLisbon, PortugalHQ recorded Nov 5, 2026201-500189 contacts →

Exact match

“É nossa missão proporcionar aos nossos parceiros um serviço de call center “top quality” que pode funcionar 24 horas por dia.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchCharleston, NC, United StatesHQ recorded Nov 5, 202651-200177 contacts →

Exact match

“Founded in 1982, Call Experts is a family owned and operated call center focused on providing extensive telecommunications and office-based services to professionals in numerous…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchUnited StatesHQ recorded Nov 5, 2026501-1,000171 contacts →

Exact match

“Tailor-Made Customer Care and Technical Support for Internet, Video, VOIP and Mobile >has highly trained CCNA, CompTIA Network+ support professionals.>perseveres in every…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchPort St Lucie, FL, United StatesHQ recorded Nov 5, 2026201-500167 contacts →

Exact match

“iVox Solutions is a leader in the contact center industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 1,403 tech support call centers worldwide

See the full list, filter by size, metro and specialty, and access 3,577 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tech support call centers worldwide at a glance

As of Nov 5, 2026
8.3%Verified-email coverage
30.8Average contacts per company
11-50Median size (employees)
2.6%Largest-city concentration · Lahore
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
287
11-50
486
51-200
367
201-500
128
501-1,000
69
1,001-5,000
42
5,001-10,000
6
10001+
4

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 tech support call centers are linked below.
What qualifies
Company records worldwide whose business descriptions match “tech support call centers” 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 3,577 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.

Tech support call centers by location

4 lists · largest first

Every Tech support call centers 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 “tech support call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tech support call centers are there worldwide?

RevenueBase identified 1,403 company matches for tech support call centers 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?

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

Which country has the most tech support call centers?

The United States leads with 249 companies, followed by the United Kingdom (55) and Germany (42). Every tech support call centers list by country and city is linked on this page.

Which city has the most tech support call centers?

Lahore leads with 36 company records, followed by Rawalpindi (26) and London (21).

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 3,577 professional contacts with verified work emails tracked across these 1,403 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.