Company lists · Data refreshed November 2026
Top 25 Inbound sales call centers worldwide
RevenueBase identified 3,024 company matches for inbound sales call centers worldwide as of November 2026 and tracks 66,680 professional contacts across them, including 4,644 with verified work emails. The United States is the largest market and Rawalpindi the largest hub.
This list covers company matches for inbound sales 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 inbound sales 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.
The 25 largest inbound sales call centers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,116 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 5, 2026 · View company records in RevenueBase | |||||
| 2 | 1,947 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 1,318 contacts → | ||||
Exact match “The Office Gurus (TOG) is a global call center and business process outsource provider of customer care, telemarketing, lead generation, appointment setting, order entry, accounts…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 1,132 contacts → | ||||
Exact match “Even the markets know that we’re the good call’!” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 1,087 contacts → | ||||
Exact match “Expert de la relation client depuis 1996, b2s est le N°1 de l’externalisation de votre relation client en qualité délivrée.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 969 contacts → | ||||
Exact match “Our Company Inktel is a leading business process outsourcer that specializes in creating personalized call center solutions which enable our clients to increase market share…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 946 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 | |||||
| 8 | 681 contacts → | ||||
Exact match “We at Girnar Care work towards customer satisfaction and it is also a center of customer excellence.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 556 contacts → | ||||
Exact match “A HOME AGENT S.A.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 544 contacts → | ||||
Exact match “A Alphavox dedica-se à construção de relacionamentos e negócios exclusivos pelo Brasil.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 467 contacts → | ||||
Exact match “About : Ansafone is the leading outsourced contact center solution provider for companies in the US and Canada and maintains international alliances for global reach.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 459 contacts → | ||||
Exact match “CCIG Group has been offering outsourced contact center services since 2002 and professionally supporting its business partners in the B2C and B2B sectors.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 452 contacts → | ||||
Exact match “Magellan Solutions Outsourcing Inc.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 443 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 | |||||
| 15 | 443 contacts → | ||||
Exact match “Alliance is a domestically operated, internationally recognized professional contact center specializing in lead generation and appointment setting.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 421 contacts → | ||||
Exact match “Nuestras soluciones de Sales Center, Contact Center y BPO están enfocadas en lograr los resultados esperados en cada proyecto que abordamos, optimizando al máximo el rendimiento…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 417 contacts → | ||||
Exact match “Touchstone Communications was built in 2002 on the philosophy of hiring educated, motivated talent and then providing them with the best training and management to achieve our…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 398 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 | |||||
| 19 | 378 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 | |||||
| 20 | 364 contacts → | ||||
Exact match “With more than 900 employees, PhoneAct is an ISO 9001/2008 certified offshore call center service provider.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 355 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 353 contacts → | ||||
Exact match “CeyBer, 2016 yılından bu yana markaların müşteri deneyimi operasyonlarını teknoloji, insan ve süreç yönetimi odağıyla uçtan uca yöneten yeni nesil bir müşteri deneyimi ve iş…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 337 contacts → | ||||
Exact match “TeleDirect provides 24/7 U.S-based call center and answering services for organizations that cannot afford to miss important calls.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 334 contacts → | ||||
Exact match “Optima Communications International (OCI) is a Canadian contact center and business process outsourcer (BPO) specializing in regulated and complex industries, including utilities…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 319 contacts → | ||||
Exact match “KIKXXL wurde von Andreas Kremer gegründet.” 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 “inbound sales call centers”. 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 3,024 inbound sales call centers worldwide
See the full list, filter by size, metro and specialty, and access 4,644 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Inbound sales call centers worldwide at a glance
As of Nov 5, 2026Companies by employee count
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 inbound sales call centers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “inbound sales 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 4,644 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.
Inbound sales call centers by location
25 lists · largest firstEvery Inbound sales call centers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Inbound sales call centers based in the United States556
- Inbound sales call centers based in Pakistan420
- Inbound sales call centers based in India194
- Inbound sales call centers based in the United Kingdom151
- Inbound sales call centers based in Brazil124
- Inbound sales call centers based in the Philippines88
- Inbound sales call centers based in Egypt73
- Inbound sales call centers based in Germany71
- Inbound sales call centers based in the Netherlands66
- Inbound sales call centers based in South Africa65
- Inbound sales call centers based in Italy58
- Inbound sales call centers based in Colombia56
- Inbound sales call centers based in France54
- Inbound sales call centers based in Canada52
- Inbound sales call centers based in Türkiye52
- Inbound sales call centers based in Argentina49
- Inbound sales call centers based in Spain39
- Inbound sales call centers based in Australia33
- Inbound sales call centers based in Belgium33
- Inbound sales call centers based in Poland30
- Inbound sales call centers based in Mexico25
- Inbound sales call centers based in Sweden25
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 “inbound sales call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many inbound sales call centers are there worldwide?
RevenueBase identified 3,024 company matches for inbound sales 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?
Advanced Call Center Technologies, LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most inbound sales call centers?
The United States leads with 556 companies, followed by Pakistan (420) and India (194). Every inbound sales call centers list by country and city is linked on this page.
Which city has the most inbound sales call centers?
Rawalpindi leads with 78 company records, followed by Lahore (53) and Karachi (41).
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 4,644 professional contacts with verified work emails tracked across these 3,024 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.
Ready to reach these companies? Verified emails and direct dials for all 3,024 inbound sales call centers worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 inbound sales call centers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 3,024 matching company records for inbound sales call centers worldwide, with 66,680 tracked contacts and 4,644 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 inbound sales call centers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Advanced Call Center Technologies, LLCacttoday.comHQ: Berwyn, PA, United StatesReported employees: 5,001-10,000 | Berwyn, PA, United States | 5,001-10,000 | Exact match | 3,116 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Infocision Management Corporationinfocision.comHQ: Akron, OH, United StatesReported employees: 1,001-5,000 | Akron, OH, United States | 1,001-5,000 | Exact match | 1,947 contacts → |
“InfoCision is an award-winning contact center partner trusted by leading brands for over 40 years.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  The Office Gurustheofficegurus.comHQ: St Petersburg, RussiaReported employees: 1,001-5,000 | St Petersburg, Russia | 1,001-5,000 | Exact match | 1,318 contacts → |
“The Office Gurus (TOG) is a global call center and business process outsource provider of customer care, telemarketing, lead generation, appointment setting, order entry, accounts…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Hrhnext Services Limitedhrhnext.comHQ: Hyderabad, IndiaReported employees: 1,001-5,000 | Hyderabad, India | 1,001-5,000 | Exact match | 1,132 contacts → |
“Even the markets know that we’re the good call’!” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  B2s Business Support Servicescomdatagroup.frHQ: Gennevilliers Cedex, FranceReported employees: 10001+ | Gennevilliers Cedex, France | 10001+ | Exact match | 1,087 contacts → |
“Expert de la relation client depuis 1996, b2s est le N°1 de l’externalisation de votre relation client en qualité délivrée.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Inktel Contact Center Solutionsinktel.comHQ: Doral, FL, United StatesReported employees: 1,001-5,000 | Doral, FL, United States | 1,001-5,000 | Exact match | 969 contacts → |
“Our Company Inktel is a leading business process outsourcer that specializes in creating personalized call center solutions which enable our clients to increase market share…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Answernetanswernet.comHQ: Horsham, PA, United StatesReported employees: 501-1,000 | Horsham, PA, United States | 501-1,000 | Exact match | 946 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Girnar Caregirnarcare.comHQ: Jaipur, IndiaReported employees: 501-1,000 | Jaipur, India | 501-1,000 | Exact match | 681 contacts → |
“We at Girnar Care work towards customer satisfaction and it is also a center of customer excellence.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Home Agenthomeagent.com.brHQ: São Paulo, BrazilReported employees: 201-500 | São Paulo, Brazil | 201-500 | Exact match | 556 contacts → |
“A HOME AGENT S.A.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Alphavox Contact Centeralphavox.com.brHQ: Sao Paulo, BrazilReported employees: 501-1,000 | Sao Paulo, Brazil | 501-1,000 | Exact match | 544 contacts → |
“A Alphavox dedica-se à construção de relacionamentos e negócios exclusivos pelo Brasil.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Ansafone Contact Centersansafone.comHQ: Santa Ana, FL, United StatesReported employees: 501-1,000 | Santa Ana, FL, United States | 501-1,000 | Exact match | 467 contacts → |
“About : Ansafone is the leading outsourced contact center solution provider for companies in the US and Canada and maintains international alliances for global reach.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  CCIGccig.plHQ: Wrocław, PolandReported employees: 1,001-5,000 | Wrocław, Poland | 1,001-5,000 | Exact match | 459 contacts → |
“CCIG Group has been offering outsourced contact center services since 2002 and professionally supporting its business partners in the B2C and B2B sectors.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Magellan BPOmagellan-solutions.comHQ: Mandaluyong City, CA, PhilippinesReported employees: 501-1,000 | Mandaluyong City, CA, Philippines | 501-1,000 | Exact match | 452 contacts → |
“Magellan Solutions Outsourcing Inc.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Proper Business Solutionsproperbusinesssolutions.comHQ: Cairo, EgyptReported employees: 1,001-5,000 | Cairo, Egypt | 1,001-5,000 | Exact match | 443 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Alliance Pdmsalliancedms.comHQ: Hurst, TX, United StatesReported employees: 51-200 | Hurst, TX, United States | 51-200 | Exact match | 443 contacts → |
“Alliance is a domestically operated, internationally recognized professional contact center specializing in lead generation and appointment setting.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Voicenter S.Avoicenter.com.arHQ: Cordoba, ArgentinaReported employees: 501-1,000 | Cordoba, Argentina | 501-1,000 | Exact match | 421 contacts → |
“Nuestras soluciones de Sales Center, Contact Center y BPO están enfocadas en lograr los resultados esperados en cada proyecto que abordamos, optimizando al máximo el rendimiento…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Touchstone Communicationstouchstonebpo.comHQ: Fort Worth, United StatesReported employees: 501-1,000 | Fort Worth, United States | 501-1,000 | Exact match | 417 contacts → |
“Touchstone Communications was built in 2002 on the philosophy of hiring educated, motivated talent and then providing them with the best training and management to achieve our…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  The Connection Contact Centertheconnectioncc.comHQ: Bloomington, MN, United StatesReported employees: 1,001-5,000 | Bloomington, MN, United States | 1,001-5,000 | Exact match | 398 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Onbrand24onbrand24.comHQ: Iowa City, United StatesReported employees: 1,001-5,000 | Iowa City, United States | 1,001-5,000 | Exact match | 378 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Phoneactoutsourcia.comHQ: Tunis, TunisiaReported employees: 501-1,000 | Tunis, Tunisia | 501-1,000 | Exact match | 364 contacts → |
“With more than 900 employees, PhoneAct is an ISO 9001/2008 certified offshore call center service provider.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Trualliant Business Process Outsourcing INCtrualliant.comHQ: Iloilo City, PhilippinesReported employees: 1,001-5,000 | Iloilo City, Philippines | 1,001-5,000 | Exact match | 355 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 |  Ceyberceyber.comHQ: İzmir, TürkiyeReported employees: 501-1,000 | İzmir, Türkiye | 501-1,000 | Exact match | 353 contacts → |
“CeyBer, 2016 yılından bu yana markaların müşteri deneyimi operasyonlarını teknoloji, insan ve süreç yönetimi odağıyla uçtan uca yöneten yeni nesil bir müşteri deneyimi ve iş…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Teledirect Call Centersteledirect.comHQ: Sacramento, CA, United StatesReported employees: 201-500 | Sacramento, CA, United States | 201-500 | Exact match | 337 contacts → |
“TeleDirect provides 24/7 U.S-based call center and answering services for organizations that cannot afford to miss important calls.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Optima Communications Internationaloptima.netHQ: Toronto, ON, CanadaReported employees: 501-1,000 | Toronto, ON, Canada | 501-1,000 | Exact match | 334 contacts → |
“Optima Communications International (OCI) is a Canadian contact center and business process outsourcer (BPO) specializing in regulated and complex industries, including utilities…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Kikxxl Gmbhkikxxl.deHQ: Osnabrück, GermanyReported employees: 1,001-5,000 | Osnabrück, Germany | 1,001-5,000 | Exact match | 319 contacts → |
“KIKXXL wurde von Andreas Kremer gegründet.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,024 company matches
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Inbound sales call centers: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,007 records in the displayed employee bands.
17 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 3,024 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Inbound sales call centers by location
25 lists · largest firstEvery Inbound sales call centers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Inbound sales call centers based in the United States556
- Inbound sales call centers based in Pakistan420
- Inbound sales call centers based in India194
- Inbound sales call centers based in the United Kingdom151
- Inbound sales call centers based in Brazil124
- Inbound sales call centers based in the Philippines88
- Inbound sales call centers based in Egypt73
- Inbound sales call centers based in Germany71
- Inbound sales call centers based in the Netherlands66
- Inbound sales call centers based in South Africa65
- Inbound sales call centers based in Italy58
- Inbound sales call centers based in Colombia56
- Inbound sales call centers based in France54
- Inbound sales call centers based in Canada52
- Inbound sales call centers based in Türkiye52
- Inbound sales call centers based in Argentina49
- Inbound sales call centers based in Spain39
- Inbound sales call centers based in Australia33
- Inbound sales call centers based in Belgium33
- Inbound sales call centers based in Poland30
- Inbound sales call centers based in Mexico25
- Inbound sales call centers based in Sweden25
Cities
Questions about this company list
What does Exact match mean for inbound sales call centers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many inbound sales call centers did RevenueBase find worldwide?
The saved snapshot records 3,024 matching company records, 66,680 tracked contacts and 4,644 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 inbound sales call centers worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/inbound-sales-call-centers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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Top 25 inbound sales call centers worldwide
RevenueBase records 3,024 matching company records for inbound sales call centers worldwide, with 66,680 tracked contacts and 4,644 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 inbound sales call centers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Advanced Call Center Technologies, LLCacttoday.com HQ: Berwyn, PA, United StatesReported employees: 5,001-10,000 | Berwyn, PA, United States | 5,001-10,000 | Exact match | 3,116 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Infocision Management Corporationinfocision.com HQ: Akron, OH, United StatesReported employees: 1,001-5,000 | Akron, OH, United States | 1,001-5,000 | Exact match | 1,947 contacts → |
“InfoCision is an award-winning contact center partner trusted by leading brands for over 40 years.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | The Office Gurustheofficegurus.com HQ: St Petersburg, RussiaReported employees: 1,001-5,000 | St Petersburg, Russia | 1,001-5,000 | Exact match | 1,318 contacts → |
“The Office Gurus (TOG) is a global call center and business process outsource provider of customer care, telemarketing, lead generation, appointment setting, order entry, accounts…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Hrhnext Services Limitedhrhnext.com HQ: Hyderabad, IndiaReported employees: 1,001-5,000 | Hyderabad, India | 1,001-5,000 | Exact match | 1,132 contacts → |
“Even the markets know that we’re the good call’!” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | B2s Business Support Servicescomdatagroup.fr HQ: Gennevilliers Cedex, FranceReported employees: 10001+ | Gennevilliers Cedex, France | 10001+ | Exact match | 1,087 contacts → |
“Expert de la relation client depuis 1996, b2s est le N°1 de l’externalisation de votre relation client en qualité délivrée.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Inktel Contact Center Solutionsinktel.com HQ: Doral, FL, United StatesReported employees: 1,001-5,000 | Doral, FL, United States | 1,001-5,000 | Exact match | 969 contacts → |
“Our Company Inktel is a leading business process outsourcer that specializes in creating personalized call center solutions which enable our clients to increase market share…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Answernetanswernet.com HQ: Horsham, PA, United StatesReported employees: 501-1,000 | Horsham, PA, United States | 501-1,000 | Exact match | 946 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Girnar Caregirnarcare.com HQ: Jaipur, IndiaReported employees: 501-1,000 | Jaipur, India | 501-1,000 | Exact match | 681 contacts → |
“We at Girnar Care work towards customer satisfaction and it is also a center of customer excellence.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Home Agenthomeagent.com.br HQ: São Paulo, BrazilReported employees: 201-500 | São Paulo, Brazil | 201-500 | Exact match | 556 contacts → |
“A HOME AGENT S.A.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Alphavox Contact Centeralphavox.com.br HQ: Sao Paulo, BrazilReported employees: 501-1,000 | Sao Paulo, Brazil | 501-1,000 | Exact match | 544 contacts → |
“A Alphavox dedica-se à construção de relacionamentos e negócios exclusivos pelo Brasil.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Ansafone Contact Centersansafone.com HQ: Santa Ana, FL, United StatesReported employees: 501-1,000 | Santa Ana, FL, United States | 501-1,000 | Exact match | 467 contacts → |
“About : Ansafone is the leading outsourced contact center solution provider for companies in the US and Canada and maintains international alliances for global reach.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | CCIGccig.pl HQ: Wrocław, PolandReported employees: 1,001-5,000 | Wrocław, Poland | 1,001-5,000 | Exact match | 459 contacts → |
“CCIG Group has been offering outsourced contact center services since 2002 and professionally supporting its business partners in the B2C and B2B sectors.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Magellan BPOmagellan-solutions.com HQ: Mandaluyong City, CA, PhilippinesReported employees: 501-1,000 | Mandaluyong City, CA, Philippines | 501-1,000 | Exact match | 452 contacts → |
“Magellan Solutions Outsourcing Inc.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Proper Business Solutionsproperbusinesssolutions.com HQ: Cairo, EgyptReported employees: 1,001-5,000 | Cairo, Egypt | 1,001-5,000 | Exact match | 443 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Alliance Pdmsalliancedms.com HQ: Hurst, TX, United StatesReported employees: 51-200 | Hurst, TX, United States | 51-200 | Exact match | 443 contacts → |
“Alliance is a domestically operated, internationally recognized professional contact center specializing in lead generation and appointment setting.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Voicenter S.Avoicenter.com.ar HQ: Cordoba, ArgentinaReported employees: 501-1,000 | Cordoba, Argentina | 501-1,000 | Exact match | 421 contacts → |
“Nuestras soluciones de Sales Center, Contact Center y BPO están enfocadas en lograr los resultados esperados en cada proyecto que abordamos, optimizando al máximo el rendimiento…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Touchstone Communicationstouchstonebpo.com HQ: Fort Worth, United StatesReported employees: 501-1,000 | Fort Worth, United States | 501-1,000 | Exact match | 417 contacts → |
“Touchstone Communications was built in 2002 on the philosophy of hiring educated, motivated talent and then providing them with the best training and management to achieve our…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | The Connection Contact Centertheconnectioncc.com HQ: Bloomington, MN, United StatesReported employees: 1,001-5,000 | Bloomington, MN, United States | 1,001-5,000 | Exact match | 398 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Onbrand24onbrand24.com HQ: Iowa City, United StatesReported employees: 1,001-5,000 | Iowa City, United States | 1,001-5,000 | Exact match | 378 contacts → |
“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 description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Phoneactoutsourcia.com HQ: Tunis, TunisiaReported employees: 501-1,000 | Tunis, Tunisia | 501-1,000 | Exact match | 364 contacts → |
“With more than 900 employees, PhoneAct is an ISO 9001/2008 certified offshore call center service provider.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Trualliant Business Process Outsourcing INCtrualliant.com HQ: Iloilo City, PhilippinesReported employees: 1,001-5,000 | Iloilo City, Philippines | 1,001-5,000 | Exact match | 355 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | Ceyberceyber.com HQ: İzmir, TürkiyeReported employees: 501-1,000 | İzmir, Türkiye | 501-1,000 | Exact match | 353 contacts → |
“CeyBer, 2016 yılından bu yana markaların müşteri deneyimi operasyonlarını teknoloji, insan ve süreç yönetimi odağıyla uçtan uca yöneten yeni nesil bir müşteri deneyimi ve iş…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Teledirect Call Centersteledirect.com HQ: Sacramento, CA, United StatesReported employees: 201-500 | Sacramento, CA, United States | 201-500 | Exact match | 337 contacts → |
“TeleDirect provides 24/7 U.S-based call center and answering services for organizations that cannot afford to miss important calls.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Optima Communications Internationaloptima.net HQ: Toronto, ON, CanadaReported employees: 501-1,000 | Toronto, ON, Canada | 501-1,000 | Exact match | 334 contacts → |
“Optima Communications International (OCI) is a Canadian contact center and business process outsourcer (BPO) specializing in regulated and complex industries, including utilities…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Kikxxl Gmbhkikxxl.de HQ: Osnabrück, GermanyReported employees: 1,001-5,000 | Osnabrück, Germany | 1,001-5,000 | Exact match | 319 contacts → |
“KIKXXL wurde von Andreas Kremer gegründet.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,024 company matches
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Inbound sales call centers: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,007 records in the displayed employee bands.
17 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 3,024 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Inbound sales call centers by location
25 lists · largest firstEvery Inbound sales call centers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Inbound sales call centers based in the United States556
- Inbound sales call centers based in Pakistan420
- Inbound sales call centers based in India194
- Inbound sales call centers based in the United Kingdom151
- Inbound sales call centers based in Brazil124
- Inbound sales call centers based in the Philippines88
- Inbound sales call centers based in Egypt73
- Inbound sales call centers based in Germany71
- Inbound sales call centers based in the Netherlands66
- Inbound sales call centers based in South Africa65
- Inbound sales call centers based in Italy58
- Inbound sales call centers based in Colombia56
- Inbound sales call centers based in France54
- Inbound sales call centers based in Canada52
- Inbound sales call centers based in Türkiye52
- Inbound sales call centers based in Argentina49
- Inbound sales call centers based in Spain39
- Inbound sales call centers based in Australia33
- Inbound sales call centers based in Belgium33
- Inbound sales call centers based in Poland30
- Inbound sales call centers based in Mexico25
- Inbound sales call centers based in Sweden25
Cities
Questions about this company list
What does Exact match mean for inbound sales call centers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many inbound sales call centers did RevenueBase find worldwide?
The saved snapshot records 3,024 matching company records, 66,680 tracked contacts and 4,644 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
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Cite this list
RevenueBase Data Team. Top 25 inbound sales call centers worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/inbound-sales-call-centers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗