Top 100 Call Center Services
The Best of December 2025
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, FLRead More
Answering service company XACT was founded in 1998. Their midsize team is in Orlando, Florida and Unity, Maine. XACT focuses on Call Center Services, Customer Service Outsourcing, Sales Outsourcing, Back Office Outsourcing, and 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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1801$25,000+1,000 - 9,999 employeesAhmedabad, IndiaIMS People Possible, a Direct Marketing company, is located in Ahmedabad, India. Their services include Direct Marketing and Graphic Design.Read More
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1802$1,000+50 - 249 employeesZee Tech Support is a direct marketing company. Their small team is headquartered in Melbourne, Australia and Islamabad, Pakistan and specializes in direct marketing, call center services, back office outsourcing, customer service outsourcing, and more. The agency was founded in 2017.Read More
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1803Undisclosed10 - 49 employeesCall Center in Canada (C&C), a small call center company, is based in New Delhi, India. The team focuses on Call Center Services and Advertising.Read More
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1804$1,000+2 - 9 employeesChandannagar, IndiaNitroBDC is a Customer Service Outsourcing company. The team is in Chandannagar, India, and their services include Customer Service Outsourcing and Call Center Services.Read More
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1805$5,000+10 - 49 employeesRawalpindi, PakistanIntellicom Solutions is an answering service. They specialize in Call Center Services and Search Engine Optimization and were established in 2019. The agency is located in Rawalpindi, Pakistan.Read More
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1806Undisclosed2 - 9 employeesEstablished in 2022, Eco Software Solutions LLC is a small software development company. Their team focuses on custom software development, web development, CRM consulting and SI, mobile app development, and more. The firm is in Cheyenne, Wyoming and Tacoma, Washington.Read More
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1807Undisclosed10 - 49 employeesWokingham, EnglandClinic Answer is an answering service and Back Office Outsourcing company in Wokingham, England and Edinburgh, Scotland. Their services include Call Center Services and Back Office Outsourcing.Read More
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1808$1,000+10 - 49 employeesWest Valley City, UTEstablished in 1934, Apello is an answering service and Customer Service Outsourcing company. The team provides Call Center Services and Customer Service Outsourcing and is in West Valley City, Utah.Read More
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1809Undisclosed10 - 49 employeesSRVR, LLC, a small phone answering service and Customer Service Outsourcing company, is headquartered in Troy, Michigan. Their services include Call Center Services and Customer Service Outsourcing.Read More
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1810Undisclosed50 - 249 employeesKhanammet, IndiaOffice24by7 is a Marketing Strategy company. Established in 2009, the team focuses on Marketing Strategy and Email Marketing.Read More
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1811$1,000+10 - 49 employeesFounded in 2020, Smart Workforce is a call center service and Document Digitization & Management company. Their team specializes in Call Center Services and Document Digitization & Management.Read More
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1812$25,000+10 - 49 employeesUndisclosedSalesLeap is an IT managed services and Sales Outsourcing company. The firm is headquartered in. Their services include IT managed services and Sales Outsourcing.Read More
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1813$5,000+10 - 49 employeesKøbenhavn, DenmarkRadiant is a CRM consulting and SI and Sales Outsourcing company. Founded in 2017, their team focuses on CRM consulting and SI and Sales Outsourcing.Read More
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1814$1,000+10 - 49 employeesBased in New Delhi, India and New Delhi, India, Effizent Seele Pvt Ltd is a small Business Consulting company. The team focuses on Business Consulting and Call Center Services.Read More
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1815$1,000+10 - 49 employeesEpsom, EnglandPremium MSP B2B Appointment Setting services is a Back Office Outsourcing and Sales Outsourcing company launched in 2023. The firm specializes in Back Office Outsourcing and Sales Outsourcing.Read More
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1816$1,000+10 - 49 employeesKingasterisk Technology is a Rockville, Maryland-based call center and Customer Service Outsourcing company. Launched in 2008, the team offers Call Center Services and Customer Service Outsourcing.Read More
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1817$1,000+250 - 999 employeesLahore, PakistanElite Techlogix is a website development firm. The team specializes in Web Development and Call Center Services, and the agency is located in Lahore, Pakistan.Read More
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1818Undisclosed250 - 999 employeesAnswering service Interactive Outsourcing Solutions is headquartered in Karachi, Pakistan and Portland, Oregon. The team specializes in Call Center Services and Customer Service Outsourcing.Read More
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1819$5,000+2 - 9 employeesNylux Ascend, a call center company, is based in harare, Zimbabwe. They focus on Call Center Services and Back Office Outsourcing and were launched in 2025.Read More
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1820Undisclosed50 - 249 employeesSorsogon City, PhilippinesRead More
GLP THEOREM VENTURES CORPORATION, a , was launched in 1995. The firm specializes in and has a midsize team. The firm is in Sorsogon City, Philippines.
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1821$1,000+10 - 49 employeesNovi Sad, SerbiaRely Staff is a call center established in 2021. The team focuses on Call Center Services and Back Office Outsourcing and is located in Novi Sad, Serbia.Read More
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1822$1,000+50 - 249 employeesNew Delhi, IndiaD K Business Patron is a Back Office Outsourcing company. They provide Back Office Outsourcing and Call Center Services and are based in New Delhi, India.Read More
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1823Undisclosed50 - 249 employeesMississauga, CanadaNCRi is an answering service company established in 2008. The firm focuses on Call Center Services and Back Office Outsourcing.Read More
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1824Undisclosed1,000 - 9,999 employeesCiudad de Guatemala, GuatemalaAllied Global is an IT strategy consulting company. They provide IT strategy consulting and cloud consulting & SI and are based in Ciudad de Guatemala, Guatemala.Read More
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1825$25,000+1,000 - 9,999 employeesUndisclosedEstablished in 2004, iMarque is a phone answering service. The team provides Call Center Services and Back Office Outsourcing.Read More
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1826$1,000+50 - 249 employeesMeraTalk is an IT strategy consulting company established in 2020. Based in Cranston, California, the team focuses on IT strategy consulting and Call Center Services.Read More
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1827$1,000+1,000 - 9,999 employeesNezda is a call center service located in Makati City, Philippines. They offer Call Center Services and Back Office Outsourcing.Read More
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1828$5,000+1,000 - 9,999 employeesGroupCOS, an IT strategy consulting company, was launched in 2009. The large team offers IT strategy consulting and Business Consulting.Read More
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1829$1,000+50 - 249 employeesGorakhpur, IndiaRead More
Zrima Edutech Pvt Ltd is a technology-based business solutions company based in Gorakhpur, India, with an office in Kushinagar, India. The company, founded in 2018, has more than 250 employees and provides, among others, social media marketing, voice, and non-voice BPO/back office services to small and midmarket companies and institutions in the financial services, manufacturing, health care & medical, real estate, and retail industries.
Clients
Ziva IndustriesIndustries
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1830$1,000+50 - 249 employeesColombo, Sri LankaProvidence is an answering service company. Headquartered in Colombo, Sri Lanka, the team specializes in Call Center Services and Customer Service Outsourcing.Read More
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