Top 100 Call Center Services
The Best of August 2026
Outsourced call center services refer to handling incoming and outgoing calls on behalf of businesses to support functions such as customer service, lead generation, and appointment setting. Call center services are crucial to ensuring customers have a positive experience with their business before, during, and after purchasing. Investing in quality call center solutions is important for timely responses to key stakeholders, gathering feedback, and understanding customer preferences.
Call centers are a type of BPO that focuses on training and hiring dedicated agents who can handle customer inquiries, resolve customer issues and complaints, and provide technical support. They contribute to businesses' productivity and long-term success, allowing them to focus on core functions while managing customers professionally and efficiently.
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List of the Best Voice Services Providers on the Market
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$1,000+250 - 999 employeesOrlando, FLXACT is an Orlando, Florida-based answering service. The company offers Call Center Services, Customer Service Outsourcing, Back Office Outsourcing, and Staffing and is midsize.The company was founded in 1998.Read More
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$1,000+1,000 - 9,999 employeesChicago, ILEstablished in 2017, Hugo Inc. Is a Customer Service Outsourcing company. The agency specializes in Customer Service Outsourcing, Call Center Services, Back Office Outsourcing, Content Moderation Services, and more and has a large team. The agency is in Chicago, Illinois and Lagos, Nigeria.Read More
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1741$1,000+50 - 249 employeesHouse Eye Lumin-VA is a midsize Sales Outsourcing company launched in 2022. Their services include Sales Outsourcing and Call Center Services.Read More
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1742$10,000+10 - 49 employeesBath, EnglandBranch Growth, a Sales Outsourcing company, was launched in 2005. The company specializes in Sales Outsourcing and Marketing Strategy, and is small.Read More
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1743$1,000+50 - 249 employeesGravify is a Conversion Optimization company. The firm is located in Mumbai, India. Their services include Conversion Optimization and CRM consulting and SI.Read More
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1744$5,000+50 - 249 employeesBacolod, PhilippinesTripex Support is a telephone answering service located in Bacolod, Philippines. Established in 2022, the team specializes in Call Center Services and Back Office Outsourcing.Read More
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1745Undisclosed10 - 49 employeesSan Francisco, CAAiSDR is a Sales Outsourcing and AI Agents company. They were established in 2023, and their services include Sales Outsourcing and AI Agents.Read More
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1746Undisclosed250 - 999 employeesMumbai, IndiaBased in Mumbai, India, Yellow Umbrella Services is an Event Marketing company. The team specializes in Event Marketing and Digital Strategy.Read More
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1747$1,000+250 - 999 employeesKarachi, PakistanEvaluation Grid is a Document Digitization & Management company. They are based in Karachi, Pakistan and have midsize team. They provide Document Digitization & Management and Call Center Services.Read More
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1748$5,000+250 - 999 employeesEstablished in 2015, Wingo Starr Group Sdn Bhd is a Customer Service Outsourcing company. Their services include Customer Service Outsourcing and Call Center Services.Read More
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1749Undisclosed2 - 9 employeesGlen Burnie, MDTelerep is a Glen Burnie, Maryland-based answering service company. They provide Call Center Services and Customer Service Outsourcing and were established in 1976.Read More
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1750Undisclosed2 - 9 employeesUndisclosedThe Admin Partner Agency (Pty) Ltd, a small Business Consulting company, is based in. The team offers Business Consulting and Call Center Services.Read More
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1751$1,000+10 - 49 employeesLondon, EnglandMedlysis is a telephone answering service founded in 2023. Headquartered in London, England and California, California, their small team offers Call Center Services, Recruitment Process Outsourcing, and Customer Service Outsourcing.Read More
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1752Undisclosed10 - 49 employeesHiston, EnglandBioStrata is a public relations agency. Located in Histon, England and Boston, Massachusetts, the agency was founded in 2014. Their services include Public Relations and Content Marketing.Read More
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1753$5,000+50 - 249 employeesMumbai, IndiaI2c World Inc. Is a Back Office Outsourcing company. They were established in 2001, and their services include Back Office Outsourcing and Sales Outsourcing.Read More
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1754$100,000+50 - 249 employeesNellore, IndiaKishore tech solutions is a Nellore, India-based call center service. Established in 2023, the team specializes in Call Center Services and Other Digital Marketing.Read More
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1755Undisclosed50 - 249 employeesRawalpindi, PakistanPyramids Global is a Back Office Outsourcing company. Founded in 2013, the company provides Back Office Outsourcing and Call Center Services.Read More
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1756$1,000+2 - 9 employeesSialkot, PakistanNexteller is an answering service company. The team offers Call Center Services and Sales Outsourcing, and the firm is located in Sialkot, Pakistan.Read More
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1757$1,000+50 - 249 employeesChennai, IndiaRead More
Founded in 2014, BOSS HealthCare is a BPO services provider with about 10 employees based in Chennai, India. BOSS HealthCare offers non-voice BPO/back office services, voice/call center services, and transcription capabilities to clients in the health care & medical industry.
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1758$1,000+50 - 249 employeesRead More
Direct TPV is a third party verification company that specializes in BPO and voice services. With over 50 employees, the team works with various industries such as business & financial services and telecommunications.
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1759$1,000+50 - 249 employeesGeneral Santos City, PhilippinesVirtualChampsGlobal is a web design company. In General Santos City, Philippines, the agency offers Web Design and UX/UI Design.Read More
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1760Undisclosed250 - 999 employeesMakati, PhilippinesAsia Premier One Source is a Customer Service Outsourcing company. Based in Makati, Philippines and Taguig, Philippines, the company offers Customer Service Outsourcing and Call Center Services.Read More
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1761$25,000+50 - 249 employeesPune, IndiaThe SalesBridge is a sales outsourcing company. The midsize Pune, India-based team provides sales outsourcing, other marketing, content marketing, and email marketing. The company was launched in 2020.Read More
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1762$1,000+10 - 49 employeesCall center company Viginet Pvt Ltd is headquartered in Delhi, India. They focus on Call Center Services and Cybersecurity.Read More
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1763$1,000+50 - 249 employeesToronto, CanadaRoundAssist Inc., a big data analytics company, specialize in BI & big data consulting & SI and CRM consulting and SI. They were launched in 2005.Read More
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1764$5,000+10 - 49 employeesLaunched in 2001, RDI, Inc. Is a Business Consulting and Sales Outsourcing company. The small team focuses on Business Consulting and Sales Outsourcing.Read More
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1765Undisclosed2 - 9 employeesAnswer Center, a telephone answering service, provide Call Center Services and Customer Service Outsourcing. They were founded in 1980.Read More
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1766$1,000+250 - 999 employeesJaipur, IndiaQDegrees Services is a Market Research company. They focus on Market Research and Business Consulting and were founded in 2013.Read More
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1767$1,000+2 - 9 employeesPalmdale, CAPhone answering service Z4 Tech Medical Solutions is located in Palmdale, California and Muharraq, Bahrain. The small team offers call center services and back office outsourcing and was founded in 2022.Read More
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1768Undisclosed10 - 49 employeesLondon, EnglandHeadley Media Ltd is a Content Marketing and Sales Outsourcing company. Founded in 2010, their team offers Content Marketing and Sales Outsourcing.Read More
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1769$25,000+10 - 49 employeesUndisclosedAutomatio is a big data analytics company and Sales Outsourcing company. They are based in. Their team focuses on BI & big data consulting & SI and Sales Outsourcing.Read More
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1770Undisclosed10 - 49 employeesLos Angeles, CACall center Convoso is based in Los Angeles, California. The team provides Call Center Services and Sales Outsourcing.Read More
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