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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5881Undisclosed10 - 49 employeesHoryzon Network is a small Back Office Outsourcing company in Cluj-Napoca, Romania. Their services include Back Office Outsourcing and Business Consulting.Read More
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5882$1,000+50 - 249 employeesVisakhapatnam, IndiaEncore India, a midsize telephone answering service, is based in Visakhapatnam, India. The team focuses on Call Center Services and Customer Service Outsourcing.Read More
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5883Undisclosed50 - 249 employeesCasablanca, MoroccoGroupe Outsourcia is a Casablanca, Morocco-based answering service company. Their services include Call Center Services and Customer Service Outsourcing.Read More
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5884Undisclosed50 - 249 employeesAdelaide, AustraliaLaunched in 2002, Contact 121 is a Customer Service Outsourcing company. The team focuses on Customer Service Outsourcing and Call Center Services and is based in Adelaide, Australia.Read More
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5885Undisclosed50 - 249 employeesLos Angeles, CAPioneer Lists is a midsize Sales Outsourcing company. They focus on Sales Outsourcing and Marketing Strategy and were founded in 1997.Read More
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5886Undisclosed50 - 249 employeesRoma, ItalyEvo Net - Call Center is a call center service located in Roma, Italy. They focus on Call Center Services and Customer Service Outsourcing.Read More
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5887Undisclosed50 - 249 employeesCiudad de México, MexicoEstablished in 2011, Anexa Telecomunicaciones is a Customer Service Outsourcing company. The agency provides Customer Service Outsourcing and Call Center Services, and is midsize.Read More
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5888Undisclosed50 - 249 employeesMálaga, SpainBUKIT BPO is a call center. They were launched in 2014, and their services include Call Center Services and Back Office Outsourcing.Read More
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5889Undisclosed50 - 249 employeesProvidencia, ChileRedvoiss is a call center. Their midsize team of employees is in Providencia, Chile. Their team provides Call Center Services and IT staff augmentation.Read More
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5890Undisclosed50 - 249 employeesBeijing, ChinaBeijing Sobot Technologies Co., Ltd is a telephone answering service. Located in Beijing, China, the company was founded in 2014. Their services include Call Center Services and AI Agents.Read More
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5891Undisclosed50 - 249 employeesMadrid, SpainAlcaláBC is a call center service. Their midsize team is located in Madrid, Spain. Their team specializes in Call Center Services and Back Office Outsourcing.Read More
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5892Undisclosed50 - 249 employeesRawson BPO, a call center service, was established in 2014. The midsize team offers Call Center Services and HR Consulting.Read More
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5893Undisclosed50 - 249 employeesAmman, JordanI 24 Connect is an answering service company founded in 2013. Their team offers Call Center Services and Back Office Outsourcing.Read More
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5894Undisclosed50 - 249 employeesHyderabad, IndiaFirst Call BPO is a call center service. In Hyderabad, India, their team specializes in Call Center Services and Back Office Outsourcing.Read More
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5895Undisclosed50 - 249 employeesCalabasas, CACedar Financial, a telephone answering service, was founded in 1991. The team offers Call Center Services and Back Office Outsourcing and is in Calabasas, California.Read More
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5896Undisclosed50 - 249 employeesBurlingame, CAEFlexervices, Inc., a call center company, was launched in 2001. The firm specializes in Call Center Services and Customer Service Outsourcing.Read More
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5897Undisclosed50 - 249 employeesدبي, United Arab EmiratesRevvknew Media is a Digital Strategy company. Their midsize team is headquartered in دبي, United Arab Emirates and London, England. Their team specializes in Digital Strategy and Sales Outsourcing.Read More
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5898Undisclosed50 - 249 employeesLexington, MACall center company Reveneer is based in Lexington, Massachusetts. They offer Call Center Services and Corporate Training & Coaching and were founded in 2012.Read More
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5899Undisclosed50 - 249 employeesMemphis, TNMed Communications, Inc., an answering service, is located in Memphis, Tennessee and Lisboa, Portugal. They provide Call Center Services and Back Office Outsourcing and were established in 1998.Read More
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5900$5,000+50 - 249 employeesSrinagar, IndiaPHI BILLING SERVICES is a midsize telephone answering service in Srinagar, India. The team provides Call Center Services and Back Office Outsourcing.Read More
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5901$1,000+2 - 9 employeesRajkot, IndiaTrezine Studios LLP, a SEO company, is headquartered in Rajkot, India. They focus on Search Engine Optimization and Graphic Design.Read More
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5902$1,000+2 - 9 employeesBelfast City, Northern Ireland, Northern IrelandGCM, a Customer Service Outsourcing company, is located in Belfast City, Northern Ireland, Northern Ireland. Founded in 2016, the team provides Customer Service Outsourcing and Call Center Services.Read More
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5903$5,000+2 - 9 employeesMadison, WIAnswering Innovations is a Customer Service Outsourcing company. They were launched in 1977 and focus on Customer Service Outsourcing and Call Center Services.Read More
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5904Undisclosed2 - 9 employeesSmall telephone answering service A2Z CAll Center, is located in and San Diego, California. The team offers Call Center Services and Sales Outsourcing.Read More
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5905UndisclosedFreelancer employeesMjølkeråen, NorwaySmall social media marketing firm Novabyte media, is in Mjølkeråen, Norway. The team provides Social Media Marketing and Conversion Optimization.Read More
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5906$1,000+Freelancer employeesAdvertising company Waays Digital Ltd was launched in 2022. The team offers Advertising and Social Media Marketing.Read More
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5907$1,000+50 - 249 employeesEden Prairie, MNPhone answering service CCS is located in Eden Prairie, Minnesota and. They focus on Call Center Services and IT managed services and were launched in 1972.Read More
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5908Undisclosed50 - 249 employeesLargo, FLLaunched in 2014, NuView Marketing is a midsize Largo, Florida-based answering service company. Their services include Call Center Services and Back Office Outsourcing.Read More
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5909$1,000+2 - 9 employeesBangkok, ThailandSEO services firm KK Digital Group is based in Bangkok, Thailand. The small team specializes in search engine optimization, pay per click, Artificial Intelligence, and ecommerce marketing. The company was launched in 2023.Read More
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5910$1,000+2 - 9 employeesPlant City, FLThe startupleads is a small social media marketing firm. Established in 2021, the team offers social media marketing, search engine optimization, web design, content marketing, and more. The agency is in Plant City, Florida.Read More
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