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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4171Undisclosed10 - 49 employeesVilvoorde, BelgiumSMS Solutions , a Sales Outsourcing company, was launched in 2002. The agency offers Sales Outsourcing and SMS Marketing, and is small.Read More
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4172Undisclosed50 - 249 employeesBangor, Northern IrelandEstablished in 2008, Mango Direct Marketing is a phone answering service. The team offers Call Center Services and Social Media Marketing and is located in Bangor, Northern Ireland.Read More
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4173Undisclosed50 - 249 employeesBratislava, SlovakiaCrystal Call, a phone answering service, was founded in 2004. The team specializes in Call Center Services and CRM consulting and SI and is located in Bratislava, Slovakia.Read More
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4174$1,000+250 - 999 employeesColumbus, OHPrimeSync is an answering service. The Columbus, Ohio-based agency was launched in 2023. Their team offers Call Center Services and Artificial Intelligence.Read More
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4175Undisclosed50 - 249 employeesBalsha, BulgariaLatiane Ltd, a midsize telephone answering service, is in Balsha, Bulgaria. Their services include Call Center Services and Recruitment Process Outsourcing.Read More
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4176Undisclosed10 - 49 employeesDubai, United Arab EmiratesJust BTL is a Sales Outsourcing company. Located in Doha, Qatar and Dubai, United Arab Emirates, the firm was founded in 2007. Their services include Sales Outsourcing and Event Management.Read More
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4177Undisclosed50 - 249 employeesToronto, CanadaAptitude 360 Inc is a call center and Back Office Outsourcing company. They specialize in Call Center Services and Back Office Outsourcing and were founded in 2019.Read More
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4178Undisclosed250 - 999 employeesGreenwood Village, COCatalyst Solutions is a Business Consulting company. They were established in 1999, and their services include Business Consulting and Call Center Services.Read More
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4179Undisclosed2 - 9 employeesCharlotte, NCLeadorder.com is a Sales Outsourcing company launched in 2002. The agency offers Sales Outsourcing and Pay Per Click.Read More
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4180Undisclosed10 - 49 employeesWest Palm Beach, FLCall center Professional's World specializes in Call Center Services and Sales Outsourcing. They are based in West Palm Beach, Florida.Read More
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4181Undisclosed10 - 49 employeesLondon, EnglandRed Volcano is a Sales Outsourcing company established in 2016. Their services include Sales Outsourcing and BI & big data consulting & SI.Read More
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4182Undisclosed10 - 49 employeesNewport Beach, CAInsellerate is a Sales Outsourcing company. The agency is headquartered in Newport Beach, California. Their services include Sales Outsourcing and Pay Per Click.Read More
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4183Undisclosed2 - 9 employeesSmyrna, DESales Outsourcing company Truewave ITES is located in Smyrna, Delaware. They provide Sales Outsourcing and Email Marketing and were established in 2019.Read More
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4184$1,000+50 - 249 employeesPune, IndiaFulcrum Resources is an Advertising company in Pune, India. They focus on Advertising and Branding and were founded in 2010.Read More
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4185Undisclosed50 - 249 employeesLondon, EnglandThe Marketing Practice, a midsize Sales Outsourcing company, is in London, England. Their services include Sales Outsourcing and Pay Per Click.Read More
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4186Undisclosed250 - 999 employeesSt. Petersburg, FLEstablished in 2016, Bold Business is a telephone answering service. The team offers Call Center Services and Search Engine Optimization.Read More
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4187$1,000+Freelancer employeesUndisclosedLaunched in 2003, Zafrulla Rasheed is a PR company. The small team specializes in Public Relations and Product Design.Read More
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4188Undisclosed1,000 - 9,999 employeesWarszawa, PolandCall Center Poland is a call center service and Back Office Outsourcing company founded in 1996. Their services include Call Center Services and Back Office Outsourcing.Read More
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4189Undisclosed250 - 999 employeesPetaling Jaya, MalaysiaEnvo Bpo Services Sdn Bhd is a Direct Marketing company. They focus on Direct Marketing and Call Center Services and are based in Petaling Jaya, Malaysia and Kuala Lumpur, Malaysia.Read More
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4190Undisclosed250 - 999 employeesKuala Lumpur, MalaysiaCallbox Asia Pacific is a telephone answering service. The agency is in Kuala Lumpur, Malaysia. Their team specializes in Call Center Services and Back Office Outsourcing.Read More
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4191Undisclosed1,000 - 9,999 employeesKallithea, GreeceICAP Contact Center is a large Kallithea, Greece-based phone answering service and Back Office Outsourcing company. The team offers Call Center Services and Back Office Outsourcing.Read More
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4192Undisclosed50 - 249 employeesWarszawa, PolandCall Center Pro, a call center company, was launched in 2013. The team offers Call Center Services and Back Office Outsourcing.Read More
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4193Undisclosed50 - 249 employeesNewark, NJFirst Connect Digital, a Sales Outsourcing and Account-Based Marketing company, specialize in Sales Outsourcing and Account-Based Marketing. They were founded in 2017.Read More
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4194Undisclosed10 - 49 employeesRas Al Khaimah City, United Arab EmiratesNeuratel AI is a Sales Outsourcing company. Their small team is located in Ras Al Khaimah City, United Arab Emirates. Their services include Sales Outsourcing and AI Agents.Read More
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4195Undisclosed10 - 49 employeesMarket Options Center is a small answering service established in 2014. Their team provides Call Center Services and Back Office Outsourcing.Read More
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4196Undisclosed10 - 49 employeesSan Antonio, TXRevvix LLC. Is a small San Antonio, Texas-based call center and Sales Outsourcing company. The team offers Call Center Services and Sales Outsourcing.Read More
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4197Undisclosed10 - 49 employeesCheyenne, WYSales Outsourcing company ScaleUpSales was founded in 2010. The team specializes in Sales Outsourcing.Read More
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4198$5,000+10 - 49 employeesMiami, FLFocus Group is a digital strategy company founded in 2015. Their small team is headquartered in Miami, Florida. Their services include digital strategy, advertising, social media marketing, content marketing, and more.Read More
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4199Undisclosed2 - 9 employeesBoston, MAGlobal Link Language Services is a Translation company. They are based in Boston, Massachusetts. Their team specializes in Translation and Call Center Services.Read More
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4200$1,000+2 - 9 employeesCarlow, IrelandThe Social Network is a SEO services firm. The Carlow, Ireland-based firm provides Search Engine Optimization and Blockchain.Read More
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