
Top 100 Call Center Services
The Best of July 2025List of the Best Voice Services Providers on the Market
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1$1,000+250 - 999 employeesOrlando, FLAnswering 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.Read More
Clients
Culinary Institute of AmericaIndustries
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2$1,000+1,000 - 9,999 employeesWilmington, DESupportYourApp, a Customer Service Outsourcing company, was established in 2010. The large Wilmington, Delaware-based team provides Customer Service Outsourcing, Call Center Services, Back Office Outsourcing, and Data Annotation Services.Read More
Clients
Mastercard Calm Kofax MacPawIndustries
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$1,000+250 - 999 employeesOrlando, FLAnswering 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.Read More
Industries
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$1,000+50 - 249 employeesEd, SwedenA-SALES AB is a sales outsourcing company founded in 2023. Their small team is headquartered in Ed, Sweden. The agency provides sales outsourcing, email marketing, content marketing, CRM consulting and SI, and more.Read More
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$1,000+1,000 - 9,999 employeesChicago, ILHugo Inc. Is a Customer Service Outsourcing company. They are in Chicago, Illinois and have a large team. The agency specializes in Customer Service Outsourcing, Call Center Services, Back Office Outsourcing, Content Moderation Services, and more.Read More
Industries
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3$1,000+50 - 249 employeesOttawa, CanadaDMT Business Development is a Sales Outsourcing company. Founded in 2018, the team offers Sales Outsourcing, Email Marketing, and Call Center Services. Their midsize agency is headquartered in Ottawa, Canada; Zhytomyr, Ukraine; Lublin, Poland and Lublin, Poland.Read More
Clients
CDS Global Cloud Yodeck Productive.io Concordia UniverscityIndustries
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4$1,000+50 - 249 employeesLondon, EnglandSales Outsourcing company SalesAR is based in Dover, Delaware; London, England and Kyiv, Ukraine. The midsize team specializes in Sales Outsourcing, Call Center Services, Content Marketing, and Email Marketing and was established in 2019.Read More
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AkridataIndustries
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5$1,000+10 - 49 employeesLafayette, CASales Outsourcing company LevelUp Leads is headquartered in Laguna Beach, California and Lafayette, California. They specialize in Sales Outsourcing, Email Marketing, and Call Center Services and were launched in 2021.Read More
Industries
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6$1,000+50 - 249 employeesDenver, COBelkins is a midsize Sales Outsourcing company launched in 2017. Their services include Sales Outsourcing, Email Marketing, CRM consulting and SI, and Call Center Services. The company is in Denver, Colorado; Kyiv, Ukraine; Cheyenne, Wyoming and Lombard, Illinois.Read More
Clients
CengageIndustries
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7$1,000+250 - 999 employeesOakville, CanadaMartal Group is a Sales Outsourcing company launched in 2009. The midsize team focuses on Sales Outsourcing, Email Marketing, and Call Center Services. The agency is in Oakville, Canada; San Francisco, California and Uniondale, New York.Read More
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BoschIndustries
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8$1,000+250 - 999 employeesSt. Louis, MOAbstrakt Marketing Group, a Sales Outsourcing company, was launched in 2009. They are based in St. Louis, Missouri and St. Louis, Missouri and have a midsize team. Their services include Sales Outsourcing, Content Marketing, and Web Design.Read More
Industries
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9$5,000+50 - 249 employeesBoca Raton, FLSalesRoads is a Sales Outsourcing company. Their midsize team is based in Boca Raton, Florida; Haddonfield, New Jersey and Philadelphia, Pennsylvania. The agency focuses on Sales Outsourcing, Email Marketing, and Call Center Services. The agency was founded in 2007.Read More
Industries
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10$1,000+50 - 249 employeesEd, SwedenA-SALES AB is a sales outsourcing company founded in 2023. Their small team is headquartered in Ed, Sweden. The agency provides sales outsourcing, email marketing, content marketing, CRM consulting and SI, and more.Read More
Clients
Svea SolarIndustries
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11$5,000+2 - 9 employeesKyiv, UkraineSales Outsourcing company Leadowski is headquartered in Kyiv, Ukraine; Middletown, Delaware and Warszawa, Poland. The agency focuses on Sales Outsourcing, Email Marketing, and Business Consulting and is small.The agency was founded in 2021.Read More
Industries
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12$1,000+1,000 - 9,999 employeesLondon, EnglandAppointment Setter Online is a large Sales Outsourcing company. Launched in 2010, the company is located in London, England; Brooklyn, New York; Dubai, United Arab Emirates and Independence, Missouri. Their services include Sales Outsourcing, Call Center Services, Customer Service Outsourcing, and Back Office Outsourcing.Read More
Clients
Trainual 15Five electrIQ marketing YChartsIndustries
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13$1,000+10 - 49 employeesOlympia, WASales Outsourcing company Social Bloom is located in Olympia, Washington. The small company was established in 2020. Their team focuses on Sales Outsourcing, Email Marketing, and Call Center Services.Read More
Industries
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14$5,000+1,000 - 9,999 employeesCebu City, PhilippinesBased in Cebu City, Philippines; Davao City, Philippines and Savannah, Georgia, Select VoiceCom is a large telephone answering service. They specialize in Call Center Services, Customer Service Outsourcing, Sales Outsourcing, Finance & Accounting Outsourcing (FAO), and more and were launched in 2008.Read More
Industries
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15$25,000+50 - 249 employeesToronto, CanadaThe Sales Factory is a Toronto, Canada-based Sales Outsourcing company. The midsize firm was founded in 2018. Their team offers Sales Outsourcing, Market Research, and Call Center Services.Read More
Clients
Advanced Solutions International (ASI) Coldwell Banker Richard Ellis (CBRE) Claris Healthcare Focus FSIndustries
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16$1,000+50 - 249 employeesLas Vegas, NVLeadium is a midsize Sales Outsourcing company. They offer Sales Outsourcing, Content Marketing, Call Center Services, and Email Marketing and were established in 2016. The firm is in Las Vegas, Nevada; Kyiv, Ukraine; Santo Domingo, Dominican Republic and Liptovsky Mikulas, Slovakia.Read More
Clients
DirecTVIndustries
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17$5,000+50 - 249 employeesAustin, TX
Outsourcing firm ContactWorks is based in Austin, Texas. They were founded in 2004 and now employ a team of 20 that specializes in voice services for clients in the financial & business services and healthcare industries.
Clients
FonalityIndustries
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18Undisclosed250 - 999 employeesLos Angeles, CACallbox is a Sales Outsourcing company. Founded in 2004, the agency is based in Los Angeles, California; Singapore and Ultimo, Australia. The midsize team offers Sales Outsourcing, Customer Service Outsourcing, Call Center Services, and Back Office Outsourcing.Read More
Clients
Alima TechnologiesIndustries
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19$1,000+50 - 249 employeesSofia, BulgariaMarKam Solutions is a midsize phone answering service. Based in Sofia, Bulgaria, the company was established in 2021. Their team provides Call Center Services, Customer Service Outsourcing, Sales Outsourcing, and Back Office Outsourcing.Read More
Industries
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20$1,000+10 - 49 employeesToronto, Canada
Veta Virtual Receptionist is a phone answering service. They are headquartered in Toronto, Canada and have a small team that provides voice services. The company was founded in 2020.
Industries
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21$1,000+1,000 - 9,999 employeesOutsource and Save is an answering service company. The Los Angeles, California-based agency was founded in 2018. The large team focuses on Call Center Services, Back Office Outsourcing, Customer Service Outsourcing, and Sales Outsourcing.Read More
Industries
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22$1,000+10 - 49 employeesHorsham , England
Small direct marketing company Virtual Sales Limited, is in Horsham , United Kingdom. They specialize in direct marketing and market research and were launched in 2001.
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23$1,000+1,000 - 9,999 employeesHollywood, FLRemote CoWorker is a Back Office Outsourcing company. They are located in Hollywood, Florida and Taguig, Philippines and have a large team. Their services include Back Office Outsourcing, Finance & Accounting Outsourcing (FAO), Call Center Services, Customer Service Outsourcing, and more. The firm was launched in 2013.Read More
Clients
AmazonIndustries
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24$1,000+2 - 9 employeesKyiv, UkraineLeading Solution is a Sales Outsourcing company. In Kyiv, Ukraine and Chicago, Illinois, their small team provides Sales Outsourcing, Market Research, and Back Office Outsourcing. The agency was established in 2016.Read More
Clients
AdobeIndustries
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25$5,000+10 - 49 employeesCalgary, Canada
Established in 2022, Alphoric is a sales outsourcing company. They are located in Calgary, Canada and have a small team. The agency offers sales outsourcing.
Industries
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26$5,000+250 - 999 employeesLas Vegas, NVPhone answering service SureCall was launched in 1982. The midsize Calgary, Canada-based team specializes in Call Center Services, Back Office Outsourcing, and Customer Service Outsourcing.Read More
Clients
Sofina Foods Inc.Industries
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27$5,000+10 - 49 employeesToronto, CanadaPurple Sales is a Sales Outsourcing company. The small team is in Toronto, Canada. Their services include Sales Outsourcing, CRM consulting and SI, Call Center Services, Content Marketing, and more.Read More
Industries
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28Undisclosed50 - 249 employeesDenver, CO
GenSales - B2B LeadGen is a lead generation and appointment setting company based in Denver. They were founded in 2002 and have a team of around 15 employees. Their services focus on voice services and digital strategy.
Clients
TUDI Mechancial SystemsIndustries
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29$1,000+250 - 999 employeesPasig, PhilippinesTRU29 Solutions Inc. Is a midsize IT staff augmentation company. They offer IT staff augmentation, Call Center Services, Back Office Outsourcing, Customer Service Outsourcing, and more and were founded in 2015. The firm is headquartered in Pasig, Philippines; Pasig, Philippines and Newark, California.Read More
Clients
CaseraIndustries
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30$5,000+10 - 49 employees
Upcall is an outbound call service based in San Francisco. It was founded in 2016 and now has a team of around 20 that is exclusively dedicated to providing voice services.
Clients
LGIndustries
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