Company lists · Data refreshed September 2026
Top 25 Tech support call centers worldwide
RevenueBase identified 737 tech support call centers worldwide as of September 2026 and tracks 11,249 professional contacts across them, including 1,066 with verified work emails. The United States is the largest market and Lahore the largest hub.
This list covers tech support call centers 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 29, 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 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.
The 25 largest tech support call centers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 562 contacts → | ||||
Partial evidence “teleNetwork is a leading provider of outsourced customer service, technical support, and sales enablement solutions for technology products and services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 475 contacts → | ||||
Partial evidence “OneSupport is a leading provider of customer experience, technical support, and sales enablement solutions for technology products and services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 474 contacts → | ||||
Indirect evidence “A HOME AGENT S.A.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 459 contacts → | ||||
Indirect evidence “In 2006, Advensus embarked on its journey in the Dominican Republic, initially known as Nearshore, with a modest 100 telemarketing positions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 354 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 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 225 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 224 contacts → | ||||
Indirect evidence “METALINE, c’est une expertise de plus de 35 ans avec plus de utilisateurs.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 210 contacts → | ||||
Partial evidence “Tailor-Made Customer Care and Technical Support for Internet, Video, VOIP and Mobile >has highly trained CCNA, CompTIA Network+ support professionals.>perseveres in every…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 207 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 192 contacts → | ||||
Indirect evidence “Günümüz teknolojik gelişmeleri ve iletişim kanalları sayesinde son kullanıcılar çok daha hızlı bir şekilde işlemlerini sonlandırabilmektedir.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 192 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 170 contacts → | ||||
Indirect evidence “Somos conscientes de la importancia de tener disponibles las soluciones tecnológicas el mayor tiempo posible dentro de las empresas, por ello, y a través de acuerdos de soporte…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 158 contacts → | ||||
Partial evidence “iVox Solutions is a leader in the contact center industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 149 contacts → | ||||
Strong evidence “Callpoint bietet Schweizer Call Center Services in den Bereichen Customer Service, Pikettdienst, Helpdesk und Telemarketing an – vor allem für grössere Unternehmen.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 140 contacts → | ||||
Strong evidence “Geeks2U has been Australia’s leading provider of on-site and remote tech support since 2005.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 137 contacts → | ||||
Partial evidence “Netfor provides AI-powered customer support and IT services for multi-location businesses across North America.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 90 contacts → | ||||
Indirect evidence “Especialista em suporte humanizado a usuários de provedores de internet com planos personalizados- Atendemos em 22 estados do Brasil- Equipe qualificada, com mais de 100…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 83 contacts → | ||||
Indirect evidence “We are Subfero.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 68 contacts → | ||||
Strong evidence “Advanced Customer Services specializes in third-party call center and contact center services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 66 contacts → | ||||
Indirect evidence “A pcmedic, marca registada da Higher Functions, Lda, é uma empresa nacional que está no mercado desde 2001, focando a sua área de excelência no apoio técnico ao utilizador final…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 65 contacts → | ||||
Indirect evidence “At Vittoria Services we know the value of offering a customer journey that is positive, patient and unique.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 63 contacts → | ||||
Strong evidence “Field Techs Services LTD is a best one IT support providing company in EMEA, APAC and LATUM.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 63 contacts → | ||||
Indirect evidence “Mainstay offshore is an award winning offshore services provider providing Technical services in the areas of network, Dialup, browser, email, OS, hardware, software and web…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 62 contacts → | ||||
Strong evidence “SSE GLOBAL TECH is a 3rd party IT technical support services provider.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 58 contacts → | ||||
Indirect evidence “We provide the “Best Customer Service” to Salt customers and stand for Great Customer Experience.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: tech support call centers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names tech support call centers.
- Partial evidence
- Its own public description names part of tech support call centers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name tech support call centers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 737 tech support call centers worldwide
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Tech support call centers worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 tech support call centers, 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
- Every country. Country and city lists for tech support call centers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “tech support call centers”. 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 tech support call centers), 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 tech support call centers, 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, 1,066 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 29, 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.
Tech support call centers by location
2 lists · largest firstEvery 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 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 tech support call centers, 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 tech support call centers are there worldwide?
RevenueBase identified 737 tech support call centers 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?
Telenetwork, headquartered in San Marcos, tops this list with the largest team on record.
Which country has the most tech support call centers?
The United States leads with 146 companies, followed by the United Kingdom (25). 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 17 headquartered companies, followed by Rawalpindi (11) and Noida (10).
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 1,066 verified decision-maker contacts tracked across these 737 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 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 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.