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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2071Undisclosed10 - 49 employeesSATA COMMUNICATIONS PVT LTD is a Back Office Outsourcing company. The company is based in Vadodara, India. Their team specializes in Back Office Outsourcing and Call Center Services.Read More
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2072$1,000+10 - 49 employeesChennai, IndiaLeadxverse is a Chennai, India-based Blockchain and Sales Outsourcing company. The team offers Blockchain and Sales Outsourcing.Read More
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2073Undisclosed10 - 49 employeesBPO-RCM is a call center founded in 2022. Their services include Call Center Services and Back Office Outsourcing.Read More
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2074Undisclosed10 - 49 employeesLoomInfinity is an answering service. Established in 2024, the agency is located in Prishtina, Kosovo. Their team specializes in Call Center Services and Back Office Outsourcing.Read More
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2075Undisclosed10 - 49 employeesCitadel Connections is an answering service company. The Winter Park, Florida-based team offers Call Center Services and Back Office Outsourcing.Read More
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2076$1,000+10 - 49 employeesWattala, Sri LankaHeadquartered in Wattala, Sri Lanka, Staunch Triad Global is a pay per click agency and answering service. They offer Pay Per Click and Call Center Services.Read More
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2077$1,000+10 - 49 employeesIslamabad, PakistanMetropole Solutions, a call center, is headquartered in Islamabad, Pakistan. The team specializes in Call Center Services and Back Office Outsourcing.Read More
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2078$1,000+10 - 49 employeesEZO Contact Center is a Philadelphia, Pennsylvania-based call center service and Customer Service Outsourcing company. They specialize in Call Center Services and Customer Service Outsourcing.Read More
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2079$1,000+10 - 49 employeesMantak Solutions is a call center and Back Office Outsourcing company launched in 2022. In Islamabad, Pakistan, the team provides Call Center Services and Back Office Outsourcing.Read More
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2080$1,000+10 - 49 employeesSupport Hubb is a telephone answering service and Customer Service Outsourcing company founded in 2024. The firm offers Call Center Services and Customer Service Outsourcing, and is small.Read More
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2081Undisclosed10 - 49 employeesTechmeister Private Limited is a call center and Back Office Outsourcing company. Launched in 2015, the agency offers Call Center Services and Back Office Outsourcing.Read More
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2082$1,000+10 - 49 employeesPlexus BPO, a call center service, was established in 2024. They offers Call Center Services and Back Office Outsourcing.Read More
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2083$5,000+10 - 49 employeesAnswering service One Dial Solutions BPO is headquartered in Batangas City, Philippines. Founded in 2021, the team focuses on Call Center Services and Back Office Outsourcing.Read More
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2084$1,000+10 - 49 employeesGolden Elite Partners is a call center company and Recruiting company located in Port Louis, Mauritius. The team offers Call Center Services and Recruiting.Read More
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2085$5,000+10 - 49 employeesSales Unicorns is an Email Marketing and Sales Outsourcing company. They are located in Saint-Petersburg, Florida. Their team focuses on Email Marketing and Sales Outsourcing.Read More
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2086Undisclosed10 - 49 employeesAnswering service company CALLSYNC ΜΟΝΟΠΡΟΣΩΠΗ Ι.Κ.Ε. Is located in Kalamaria, Greece. Founded in 2024, the team provides Call Center Services and Back Office Outsourcing.Read More
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2087$1,000+10 - 49 employeesSmall answering service company Fjorfer, is based in Ferizaj, Kosovo. The team provides Call Center Services and Sales Outsourcing.Read More
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2088$1,000+10 - 49 employeesAvvant Business Process Outsourcing is a call center company. The firm is located in Makati City, Philippines. Their services include Call Center Services and Back Office Outsourcing.Read More
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2089Undisclosed10 - 49 employeesLaunched in 2005, eBillingWorks is a Back Office Outsourcing and Sales Outsourcing company. The team provides Back Office Outsourcing and Sales Outsourcing.Read More
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2090Undisclosed10 - 49 employeesIT staff augmentation and phone answering service WOBRIT is in Apeldoorn, Netherlands. They specialize in IT staff augmentation and Call Center Services.Read More
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2091$1,000+10 - 49 employeesSheridan, WYCompletassist is a Sheridan, Wyoming-based call center and Customer Service Outsourcing company. They provide Call Center Services and Customer Service Outsourcing and were launched in 2025.Read More
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2092Undisclosed10 - 49 employeesCall Center Pro is an answering service. The Montréal, Canada-based company specializes in Call Center Services and Back Office Outsourcing.Read More
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2093$5,000+10 - 49 employeesBased in Moka, Mauritius, AssistFlow Solutions Ltd is a phone answering service. They provide Call Center Services and Back Office Outsourcing.Read More
Industries
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2094$1,000+10 - 49 employeesLeadsagentur.de is a Sales Outsourcing company. Their small team of employees is headquartered in Düsseldorf, Germany. Their team specializes in Sales Outsourcing and Advertising.Read More
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2095$10,000+10 - 49 employeesFounded in 2023, Nexsourcing is a small Aventura, Florida-based phone answering service. Their services include Call Center Services and Customer Service Outsourcing.Read More
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2096Undisclosed10 - 49 employeesEstarta Call Center is an answering service. They are in Brooklyn, New York, and their services include Call Center Services and Back Office Outsourcing.Read More
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2097$1,000+10 - 49 employeesFACILIX is a telephone answering service founded in 2024. In Dhaka, Bangladesh, the team specializes in Call Center Services and IT strategy consulting.Read More
Industries
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2098$10,000+10 - 49 employeesMünchen, GermanyEstablished in 2025, KALLEXA is a small call center company in Ferizaj, Kosovo and München, Germany. Their team focuses on Call Center Services and Back Office Outsourcing.Read More
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2099$1,000+10 - 49 employeesOnDutyOps LLC is a call center founded in 2025. Located in Claymont, Delaware, the team focuses on Call Center Services and Back Office Outsourcing.Read More
Industries
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2100$5,000+10 - 49 employeesCall center service Appointment Catalyst LLC provides Call Center Services and Back Office Outsourcing. They were launched in 2025.Read More
Industries
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