Company lists · Data refreshed September 2026
Top 25 Back office call centers worldwide
RevenueBase identified 3,049 company matches for back office call centers worldwide as of September 2026 and tracks 111,435 professional contacts across them, including 6,779 with verified work emails. The United States is the largest market and Lahore the largest hub.
This list covers company matches for back office 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 September 27, 2026. Country and city lists for back office 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 back office call centers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,785 contacts → | ||||
Exact match “Founded in 1993, since the beginning Sercom has stood out in the Contact Center Services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 2 | 3,061 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 3 | 2,774 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 4 | 2,221 contacts → | ||||
Exact match “Somos la compañía líder en Servicios Next Gen de Contact Center, Business Process Outsourcing (BPO) y Customer Experience (CX).” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 5 | 1,741 contacts → | ||||
Exact match “Award-winning outsourcing partner with two decades of experience operating an exclusively nearshore strategy that delivers better performance, close to home, and at a lower cost.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 6 | 1,711 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 7 | 1,225 contacts → | ||||
Exact match “We deliver tailored Contact Center and Back Office solutions to our strategic partners, leveraging advanced technology and high quality standards to elevate customer experiences…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 8 | 1,198 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 9 | 1,116 contacts → | ||||
Exact match “MISIÓN Somos una compañía de Contact Center y tercerización de procesos (Business Process Outsourcing BPO), rentable, con presencia nacional; que brinda soluciones ágiles y…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 10 | 1,076 contacts → | ||||
Exact match “Even the markets know that we’re the good call’!” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 11 | 1,058 contacts → | ||||
Exact match “Em breve uma nova página da BTCC Conexão Cliente.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 12 | 995 contacts → | ||||
Exact match “At Invensis, we solve business inefficiencies.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 13 | 902 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 14 | 883 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 15 | 879 contacts → | ||||
Exact match “Started operation on 2004 with 25 employees, Currently iMarque has grown into a powerhouse of over professionals today, consistently achieving an impressive 40% average annual…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 16 | 863 contacts → | ||||
Exact match “inTarvo stands for our core ideology of Delivering Value (inT+arvo=Integration + Value).” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 17 | 742 contacts → | ||||
Exact match “ILeads is one of the fastest growing and leading BPO/KPO/ITES industry based companies in the Dehradun region.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 18 | 701 contacts → | ||||
Exact match “A VECTOR SERVIÇOS é uma empresa especializada na criação, implantação e gestão de serviços de Contact Center.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 19 | 654 contacts → | ||||
Exact match “TSYS is the market leader for credit card processing in the United Kingdom, supporting a number of the key credit card issuers in the region.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 20 | 623 contacts → | ||||
Exact match “Impulsamos el éxito de nuestros clientes a través de soluciones personalizadas en Contact Center y experiencia al cliente.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 21 | 572 contacts → | ||||
Exact match “Empresa dedicada a prestar servicios de Contact Center a terceros.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 22 | 542 contacts → | ||||
Exact match “We are customer service experts.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 23 | 517 contacts → | ||||
Exact match “iContact BPO is in the business of transforming global enterprises - because we provide the BPO solutions that organizations need to provide exceptional service.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 24 | 509 contacts → | ||||
Exact match “ServiceFirst is a World Class Call Center and BPO with strategic locations around the globe providing an elevated Customer Experience to benefit your business with exceptional…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 25 | 504 contacts → | ||||
Exact match “AZPIRED is a world-class provider of call center outsourcing services, proudly operating multiple locations across the Philippines.” Recorded in the RevenueBase company graph · Sep 27, 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 “back office 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 3,049 back office call centers worldwide
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Back office call centers worldwide at a glance
As of Sep 27, 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 back office call centers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “back office 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 6,779 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 September 27, 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.
Back office call centers by location
13 lists · largest firstEvery Back office call centers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Back office call centers based in the United States459
- Back office call centers based in India363
- Back office call centers based in the Philippines143
- Back office call centers based in the United Kingdom81
- Back office call centers based in Italy77
- Back office call centers based in Canada52
- Back office call centers based in Brazil48
- Back office call centers based in Germany48
- Back office call centers based in France47
- Back office call centers based in the Netherlands39
- Back office call centers based in Mexico38
- Back office call centers based in South Africa34
- Back office call centers based in Türkiye31
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 “back office call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many back office call centers are there worldwide?
RevenueBase identified 3,049 company matches for back office call centers worldwide as of September 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 back office call centers?
The United States leads with 459 companies, followed by India (363) and the Philippines (143). Every back office call centers list by country and city is linked on this page.
Which city has the most back office call centers?
Lahore leads with 77 company records, followed by Rawalpindi (59) and Karachi (36).
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 6,779 professional contacts with verified work emails tracked across these 3,049 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 September 27, 2026.
Ready to reach these companies? Verified emails and direct dials for all 3,049 back office 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 back office 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 3,049 matching company records for back office call centers worldwide, with 111,435 tracked contacts and 6,779 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: September 27, 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 back office 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 |  Sercomsercom.com.brHQ: Taboão Da Serra, BrazilReported employees: 5,001-10,000 | Taboão Da Serra, Brazil | 5,001-10,000 | Exact match | 3,785 contacts → |
“Founded in 1993, since the beginning Sercom has stood out in the Contact Center Services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  EPX Eperformax Contact Centerseperformax.comHQ: Pasay City, PhilippinesReported employees: 5,001-10,000 | Pasay City, Philippines | 5,001-10,000 | Exact match | 3,061 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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 | 2,774 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 · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  CAT Technologies Argentinacat-technologies.comHQ: Buenos Aires, ArgentinaReported employees: 1,001-5,000 | Buenos Aires, Argentina | 1,001-5,000 | Exact match | 2,221 contacts → |
“Somos la compañía líder en Servicios Next Gen de Contact Center, Business Process Outsourcing (BPO) y Customer Experience (CX).” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Km2 Solutionskm2solutions.comHQ: Boca Raton, FL, United StatesReported employees: 5,001-10,000 | Boca Raton, FL, United States | 5,001-10,000 | Exact match | 1,741 contacts → |
“Award-winning outsourcing partner with two decades of experience operating an exclusively nearshore strategy that delivers better performance, close to home, and at a lower cost.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Supportninjasupportninja.comHQ: Austin, TX, United StatesReported employees: 1,001-5,000 | Austin, TX, United States | 1,001-5,000 | Exact match | 1,711 contacts → |
“SupportNinja provides customer experience and back-office support services for tech companies and startups around the world.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  American Call Centeracc.com.ecHQ: Guayaquil, EcuadorReported employees: 1,001-5,000 | Guayaquil, Ecuador | 1,001-5,000 | Exact match | 1,225 contacts → |
“We deliver tailored Contact Center and Back Office solutions to our strategic partners, leveraging advanced technology and high quality standards to elevate customer experiences…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  The Office Gurustheofficegurus.comHQ: St Petersburg, FL, RussiaReported employees: 1,001-5,000 | St Petersburg, FL, Russia | 1,001-5,000 | Exact match | 1,198 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 · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Ventas Y Servicios S.Anexabpo.comHQ: Bogotá D.c., ColombiaReported employees: 1,001-5,000 | Bogotá D.c., Colombia | 1,001-5,000 | Exact match | 1,116 contacts → |
“MISIÓN Somos una compañía de Contact Center y tercerización de procesos (Business Process Outsourcing BPO), rentable, con presencia nacional; que brinda soluciones ágiles y…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Hrhnext Services Limitedhrhnext.comHQ: Hyderabad, IndiaReported employees: 1,001-5,000 | Hyderabad, India | 1,001-5,000 | Exact match | 1,076 contacts → |
“Even the markets know that we’re the good call’!” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Btcc Call Centerbtcc.net.brHQ: Goiânia, BrazilReported employees: 10001+ | Goiânia, Brazil | 10001+ | Exact match | 1,058 contacts → |
“Em breve uma nova página da BTCC Conexão Cliente.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Invensisinvensis.net HQ: Bangalore, IndiaReported employees: 1,001-5,000 | Bangalore, India | 1,001-5,000 | Exact match | 995 contacts → |
“At Invensis, we solve business inefficiencies.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Inktel Contact Center Solutionsinktel.comHQ: Doral, FL, United StatesReported employees: 1,001-5,000 | Doral, FL, United States | 1,001-5,000 | Exact match | 902 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 · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Answernetanswernet.comHQ: Horsham, PA, United StatesReported employees: 501-1,000 | Horsham, PA, United States | 501-1,000 | Exact match | 883 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 · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Imarque Solutions Pvt. LTDimarque.comHQ: Chennai, IndiaReported employees: 1,001-5,000 | Chennai, India | 1,001-5,000 | Exact match | 879 contacts → |
“Started operation on 2004 with 25 employees, Currently iMarque has grown into a powerhouse of over professionals today, consistently achieving an impressive 40% average annual…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Intarvo Technologies Pvt. Limitedintarvo.comHQ: Noida, IndiaReported employees: 1,001-5,000 | Noida, India | 1,001-5,000 | Exact match | 863 contacts → |
“inTarvo stands for our core ideology of Delivering Value (inT+arvo=Integration + Value).” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Ileads Auxiliary Services PVT LTDileads.co.inHQ: Dehra Dun, IndiaReported employees: 1,001-5,000 | Dehra Dun, India | 1,001-5,000 | Exact match | 742 contacts → |
“ILeads is one of the fastest growing and leading BPO/KPO/ITES industry based companies in the Dehradun region.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Vectorsouvector.com.brHQ: Fortaleza, BrazilReported employees: 1,001-5,000 | Fortaleza, Brazil | 1,001-5,000 | Exact match | 701 contacts → |
“A VECTOR SERVIÇOS é uma empresa especializada na criação, implantação e gestão de serviços de Contact Center.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Tsys Managed Services Emeatsys.comHQ: Milton Keynes, United KingdomReported employees: 1,001-5,000 | Milton Keynes, United Kingdom | 1,001-5,000 | Exact match | 654 contacts → |
“TSYS is the market leader for credit card processing in the United Kingdom, supporting a number of the key credit card issuers in the region.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Fastcofastcogroup.comHQ: Providencia, ChileReported employees: 1,001-5,000 | Providencia, Chile | 1,001-5,000 | Exact match | 623 contacts → |
“Impulsamos el éxito de nuestros clientes a través de soluciones personalizadas en Contact Center y experiencia al cliente.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Telemercadotelemercado.com.arHQ: Córdoba, ArgentinaReported employees: 1,001-5,000 | Córdoba, Argentina | 1,001-5,000 | Exact match | 572 contacts → |
“Empresa dedicada a prestar servicios de Contact Center a terceros.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Global Contact Services GCSgcsagents.comHQ: Salisbury, NC, United StatesReported employees: 501-1,000 | Salisbury, NC, United States | 501-1,000 | Exact match | 542 contacts → |
“We are customer service experts.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Icontact BPOicontactbpo.comHQ: Johannesburg, South AfricaReported employees: 1,001-5,000 | Johannesburg, South Africa | 1,001-5,000 | Exact match | 517 contacts → |
“iContact BPO is in the business of transforming global enterprises - because we provide the BPO solutions that organizations need to provide exceptional service.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Servicefirstservicefirstcx.comHQ: Alabang, PhilippinesReported employees: 1,001-5,000 | Alabang, Philippines | 1,001-5,000 | Exact match | 509 contacts → |
“ServiceFirst is a World Class Call Center and BPO with strategic locations around the globe providing an elevated Customer Experience to benefit your business with exceptional…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Azpiredazpired.comHQ: Cebu City, PhilippinesReported employees: 1,001-5,000 | Cebu City, Philippines | 1,001-5,000 | Exact match | 504 contacts → |
“AZPIRED is a world-class provider of call center outsourcing services, proudly operating multiple locations across the Philippines.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,049 company matches
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Back office call centers: dataset insights
September 27, 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
3,040 records in the displayed employee bands.
9 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 3,049 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: September 27, 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 ↗
Back office call centers by location
13 lists · largest firstEvery Back office call centers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Back office call centers based in the United States459
- Back office call centers based in India363
- Back office call centers based in the Philippines143
- Back office call centers based in the United Kingdom81
- Back office call centers based in Italy77
- Back office call centers based in Canada52
- Back office call centers based in Brazil48
- Back office call centers based in Germany48
- Back office call centers based in France47
- Back office call centers based in the Netherlands39
- Back office call centers based in Mexico38
- Back office call centers based in South Africa34
- Back office call centers based in Türkiye31
Questions about this company list
What does Exact match mean for back office 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 back office call centers did RevenueBase find worldwide?
The saved snapshot records 3,049 matching company records, 111,435 tracked contacts and 6,779 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: September 27, 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 back office call centers worldwide. Snapshot: September 27, 2026. https://revenuebase.ai/companies/browse/back-office-call-centers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 back office call centers worldwide
RevenueBase records 3,049 matching company records for back office call centers worldwide, with 111,435 tracked contacts and 6,779 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: September 27, 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 back office 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 | Sercomsercom.com.br HQ: Taboão Da Serra, BrazilReported employees: 5,001-10,000 | Taboão Da Serra, Brazil | 5,001-10,000 | Exact match | 3,785 contacts → |
“Founded in 1993, since the beginning Sercom has stood out in the Contact Center Services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | EPX Eperformax Contact Centerseperformax.com HQ: Pasay City, PhilippinesReported employees: 5,001-10,000 | Pasay City, Philippines | 5,001-10,000 | Exact match | 3,061 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 | 2,774 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 · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | CAT Technologies Argentinacat-technologies.com HQ: Buenos Aires, ArgentinaReported employees: 1,001-5,000 | Buenos Aires, Argentina | 1,001-5,000 | Exact match | 2,221 contacts → |
“Somos la compañía líder en Servicios Next Gen de Contact Center, Business Process Outsourcing (BPO) y Customer Experience (CX).” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Km2 Solutionskm2solutions.com HQ: Boca Raton, FL, United StatesReported employees: 5,001-10,000 | Boca Raton, FL, United States | 5,001-10,000 | Exact match | 1,741 contacts → |
“Award-winning outsourcing partner with two decades of experience operating an exclusively nearshore strategy that delivers better performance, close to home, and at a lower cost.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Supportninjasupportninja.com HQ: Austin, TX, United StatesReported employees: 1,001-5,000 | Austin, TX, United States | 1,001-5,000 | Exact match | 1,711 contacts → |
“SupportNinja provides customer experience and back-office support services for tech companies and startups around the world.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | American Call Centeracc.com.ec HQ: Guayaquil, EcuadorReported employees: 1,001-5,000 | Guayaquil, Ecuador | 1,001-5,000 | Exact match | 1,225 contacts → |
“We deliver tailored Contact Center and Back Office solutions to our strategic partners, leveraging advanced technology and high quality standards to elevate customer experiences…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | The Office Gurustheofficegurus.com HQ: St Petersburg, FL, RussiaReported employees: 1,001-5,000 | St Petersburg, FL, Russia | 1,001-5,000 | Exact match | 1,198 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 · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Ventas Y Servicios S.Anexabpo.com HQ: Bogotá D.c., ColombiaReported employees: 1,001-5,000 | Bogotá D.c., Colombia | 1,001-5,000 | Exact match | 1,116 contacts → |
“MISIÓN Somos una compañía de Contact Center y tercerización de procesos (Business Process Outsourcing BPO), rentable, con presencia nacional; que brinda soluciones ágiles y…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Hrhnext Services Limitedhrhnext.com HQ: Hyderabad, IndiaReported employees: 1,001-5,000 | Hyderabad, India | 1,001-5,000 | Exact match | 1,076 contacts → |
“Even the markets know that we’re the good call’!” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Btcc Call Centerbtcc.net.br HQ: Goiânia, BrazilReported employees: 10001+ | Goiânia, Brazil | 10001+ | Exact match | 1,058 contacts → |
“Em breve uma nova página da BTCC Conexão Cliente.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Invensisinvensis.net HQ: Bangalore, IndiaReported employees: 1,001-5,000 | Bangalore, India | 1,001-5,000 | Exact match | 995 contacts → |
“At Invensis, we solve business inefficiencies.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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 | 902 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 · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Answernetanswernet.com HQ: Horsham, PA, United StatesReported employees: 501-1,000 | Horsham, PA, United States | 501-1,000 | Exact match | 883 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 · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Imarque Solutions Pvt. LTDimarque.com HQ: Chennai, IndiaReported employees: 1,001-5,000 | Chennai, India | 1,001-5,000 | Exact match | 879 contacts → |
“Started operation on 2004 with 25 employees, Currently iMarque has grown into a powerhouse of over professionals today, consistently achieving an impressive 40% average annual…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Intarvo Technologies Pvt. Limitedintarvo.com HQ: Noida, IndiaReported employees: 1,001-5,000 | Noida, India | 1,001-5,000 | Exact match | 863 contacts → |
“inTarvo stands for our core ideology of Delivering Value (inT+arvo=Integration + Value).” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Ileads Auxiliary Services PVT LTDileads.co.in HQ: Dehra Dun, IndiaReported employees: 1,001-5,000 | Dehra Dun, India | 1,001-5,000 | Exact match | 742 contacts → |
“ILeads is one of the fastest growing and leading BPO/KPO/ITES industry based companies in the Dehradun region.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Vectorsouvector.com.br HQ: Fortaleza, BrazilReported employees: 1,001-5,000 | Fortaleza, Brazil | 1,001-5,000 | Exact match | 701 contacts → |
“A VECTOR SERVIÇOS é uma empresa especializada na criação, implantação e gestão de serviços de Contact Center.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Tsys Managed Services Emeatsys.com HQ: Milton Keynes, United KingdomReported employees: 1,001-5,000 | Milton Keynes, United Kingdom | 1,001-5,000 | Exact match | 654 contacts → |
“TSYS is the market leader for credit card processing in the United Kingdom, supporting a number of the key credit card issuers in the region.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Fastcofastcogroup.com HQ: Providencia, ChileReported employees: 1,001-5,000 | Providencia, Chile | 1,001-5,000 | Exact match | 623 contacts → |
“Impulsamos el éxito de nuestros clientes a través de soluciones personalizadas en Contact Center y experiencia al cliente.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Telemercadotelemercado.com.ar HQ: Córdoba, ArgentinaReported employees: 1,001-5,000 | Córdoba, Argentina | 1,001-5,000 | Exact match | 572 contacts → |
“Empresa dedicada a prestar servicios de Contact Center a terceros.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Global Contact Services GCSgcsagents.com HQ: Salisbury, NC, United StatesReported employees: 501-1,000 | Salisbury, NC, United States | 501-1,000 | Exact match | 542 contacts → |
“We are customer service experts.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Icontact BPOicontactbpo.com HQ: Johannesburg, South AfricaReported employees: 1,001-5,000 | Johannesburg, South Africa | 1,001-5,000 | Exact match | 517 contacts → |
“iContact BPO is in the business of transforming global enterprises - because we provide the BPO solutions that organizations need to provide exceptional service.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Servicefirstservicefirstcx.com HQ: Alabang, PhilippinesReported employees: 1,001-5,000 | Alabang, Philippines | 1,001-5,000 | Exact match | 509 contacts → |
“ServiceFirst is a World Class Call Center and BPO with strategic locations around the globe providing an elevated Customer Experience to benefit your business with exceptional…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Azpiredazpired.com HQ: Cebu City, PhilippinesReported employees: 1,001-5,000 | Cebu City, Philippines | 1,001-5,000 | Exact match | 504 contacts → |
“AZPIRED is a world-class provider of call center outsourcing services, proudly operating multiple locations across the Philippines.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,049 company matches
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Back office call centers: dataset insights
September 27, 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
3,040 records in the displayed employee bands.
9 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 3,049 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: September 27, 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 ↗
Back office call centers by location
13 lists · largest firstEvery Back office call centers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Back office call centers based in the United States459
- Back office call centers based in India363
- Back office call centers based in the Philippines143
- Back office call centers based in the United Kingdom81
- Back office call centers based in Italy77
- Back office call centers based in Canada52
- Back office call centers based in Brazil48
- Back office call centers based in Germany48
- Back office call centers based in France47
- Back office call centers based in the Netherlands39
- Back office call centers based in Mexico38
- Back office call centers based in South Africa34
- Back office call centers based in Türkiye31
Questions about this company list
What does Exact match mean for back office 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 back office call centers did RevenueBase find worldwide?
The saved snapshot records 3,049 matching company records, 111,435 tracked contacts and 6,779 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: September 27, 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.
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Cite this list
RevenueBase Data Team. Top 25 back office call centers worldwide. Snapshot: September 27, 2026. https://revenuebase.ai/companies/browse/back-office-call-centers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗