Top 100 Call Center Services
The Best of December 2025List 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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31$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
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32$25,000+50 - 249 employeesToronto, CanadaRead More
The 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.
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Advanced Solutions International (ASI) Coldwell Banker Richard Ellis (CBRE) Claris Healthcare Focus FSIndustries
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33$1,000+50 - 249 employeesScottsdale, AZRead More
Intelemark is an appointment setting and B2B lead generation company based in Scottsdale, Ariz. The company, founded in 1999, has more than 25 employees who provide voice and other marketing services to various companies.
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Dow JonesIndustries
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34$1,000+250 - 999 employeesHatboro, PARead More
HelpSquad, LLC is a midsize in Quakertown, Pennsylvania and Hatboro, Pennsylvania. They specialize in and were established in 2011.
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Slinger BagIndustries
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35$5,000+250 - 999 employeesHome, KSRead More
Blue Valley Marketing, a Customer Service Outsourcing company, is in Home, Kansas. The agency provides Customer Service Outsourcing, Call Center Services, and Sales Outsourcing and has a midsize team.The agency was established in 1991.
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36$5,000+50 - 249 employeesAustin, TXRead More
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.
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FonalityIndustries
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37$5,000+10 - 49 employeesRead More
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.
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LGIndustries
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38$1,000+50 - 249 employeesFarmington, CTRead More
Strategic Sales & Marketing (SSM) is a lead generation company based in Farmington, Conn. Founded in 1989, SSM helps companies with lead generation and appointment setting services focused on B2B major accounts. Typical clients are looking to reach the Owner, Director, VP or C level of contact, have a sales cycle that requires multiple touch-points, and uses a "solution sell process."
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CT Technology CouncilIndustries
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39Undisclosed50 - 249 employeesTampa, FLCall center company AnswerFirst was established in 1998. The midsize Tampa, Florida-based team offers Call Center Services and Customer Service Outsourcing.Read More
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40$1,000+250 - 999 employeesNashville, TNRead More
JumpCrew is a midsize advertising company. They focus on advertising, digital strategy, marketing strategy, content marketing, and more and were launched in 2016. The company is based in Nashville, Tennessee.
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AlibabaIndustries
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41$10,000+250 - 999 employeesSan Pablo City, PhilippinesCustomer Service Outsourcing company Big Outsource is based in San Pablo City, Philippines; Candelaria, Philippines and Santo Tomas, Philippines. The midsize team specializes in Customer Service Outsourcing, Back Office Outsourcing, Call Center Services, and Finance & Accounting Outsourcing (FAO). The firm was founded in 2014.Read More
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42Undisclosed250 - 999 employeesRead More
Smith.ai is a virtual receptionist and lead intake services company located in Palo Alto, Calif. Founded in 2015, they employ over 100 staff specializing in live calls and website chat for small and mid-market companies, typically in legal, hospitality, finance, e-commerce, healthcare, and real estate. Services include AI chatbots, live chat, conversion optimization, and virtual receptionists.
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Hacking Law PracticeIndustries
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43$1,000+50 - 249 employeesBerkeley, CARead More
Wing Assistant, a back office outsourcing company, was established in 2018. Their midsize team is located in Berkeley, California. Their services include back office outsourcing, customer service outsourcing, sales outsourcing, call center services, and more.
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44$5,000+250 - 999 employeesCalgary, CanadaSureCall Contact Centers is a call center company based in Denver, Colorado; Calgary, Canada and London, England. The midsize company was founded in 1982. Their team specializes in Call Center Services, Back Office Outsourcing, and Customer Service Outsourcing.Read More
Clients
Sofina Foods Inc.Industries
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45$1,000+10 - 49 employeesLos Angeles, CARead More
Founded in 2016, Cleverly is a marketing agency that offers lead generation and LinkedIn Ads to their clients. Their 50 employees are based out of Los Angeles.
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LeaseLockIndustries
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46Undisclosed50 - 249 employeesJackson, MIAmbs Call Center, a phone answering service, is headquartered in Jackson, Michigan and Tampa, Florida. Launched in 1932, the midsize team provides Call Center Services.Read More
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Cadillac Michigan State University Caterpillar MacallisterIndustries
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47Undisclosed1,000 - 9,999 employeesGarden City, NYRead More
Go Answer is a leading bilingual contact center, providing 24/7 voice, web-chat, email, and ticketing services for large and small businesses. They serve multiple industries such as home services, property management, e-commerce, healthcare, transportation, and fintech. Go Answer also has a bilingual dedicated legal division that strictly handles legal intake and retainer services for law firms across the United States. Go Answer was founded in 2012 and is based in New York, with additional state-of-the-art call centers in St. Lucia and Florida. Go Answer understands the importance of being a true extension of their clients brand. They provide friendly, professional and expert answering services, virtual reception services, and custom contact center solutions that reflect the values and reputation of your company
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Century21Industries
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48$1,000+50 - 249 employeesSugar Land, TXIdeasUnlimited is a midsize Customer Service Outsourcing company. The Sugar Land, Texas-based agency was founded in 2010. Their services include Customer Service Outsourcing, Call Center Services, Back Office Outsourcing, Transcription, and more.Read More
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TravelWifiIndustries
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49$10,000+250 - 999 employeesOverland Park, KSRead More
1840 & Company is a call center service launched in 2014. The midsize team focuses on call center services, sales outsourcing, customer service outsourcing, back office outsourcing, and more. The company is in Overland Park, Kansas and Makati, Philippines.
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GrouponIndustries
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50$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
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51$5,000+250 - 999 employeesDallas, TXRead More
MemoryBlue is a Sales Outsourcing company located in Dallas, Texas; Fleet, England and Singapore. The midsize team provides Sales Outsourcing, Call Center Services, Marketing Strategy, Digital Strategy, and more and was launched in 2002.
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52$1,000+10 - 49 employeesThatcham , EnglandRead More
Verbatim Virtual Receptionists is a call answering service company that was founded in 1997. Based in Thatcham, U.K., the team of about 10 employees does voice services and non-voice BPO and back-office services, including virtual receptionist, inbound appointment scheduling, B2B lead generation and qualification, and online customer support.
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Knight FrankIndustries
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53$1,000+250 - 999 employeesRead More
Founded in 2017, LTVplus is BPO firm that is headquartered in West Palm Beach, Fla. Their team of 19 is sold dedicated to providing non-voice BPO and back office services.
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Bully MaxIndustries
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54$5,000+250 - 999 employeesAustin, TXLaunched in 2006, EBQ is a midsize Sales Outsourcing company. Their team focuses on Sales Outsourcing, Email Marketing, CRM consulting and SI, Other Digital Marketing, and more. The company is based in Austin, Texas.Read More
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55$1,000+1,000 - 9,999 employeesSanta Monica, CACustomer Service Outsourcing company Boldr. Is based in Santa Monica, California; Pasig, Philippines; Mérida, Mexico and Tacloban City, Philippines. The large team provides Customer Service Outsourcing, Call Center Services, Back Office Outsourcing, Employer of Record (EOR) Services, and more and was launched in 2016.Read More
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56$25,000+1,000 - 9,999 employeesSofia, BulgariaLarge Sales Outsourcing company MarketStar Bulgaria, is headquartered in Sofia, Bulgaria; Ogden, Utah; Salt Lake City, Utah and Dublin, Ireland. They specialize in Sales Outsourcing, Product Marketing, and Direct Marketing and were founded in 1988.Read More
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Progress SoftwareIndustries
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57$1,000+10 - 49 employeesToronto, CanadaRead More
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.
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58Undisclosed50 - 249 employeesDenver, CORead More
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.
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TUDI Mechancial SystemsIndustries
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59$1,000+250 - 999 employeesBucurești, RomaniaValoris Center is a call center company. Located in București, Romania and Beograd, Serbia, their midsize team offers Call Center Services, Customer Service Outsourcing, CRM consulting and SI, and Back Office Outsourcing. The firm was launched in 2006.Read More
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60Undisclosed50 - 249 employeesMargate, FLRead More
Established in 1974, Answering Service Care is a telephone answering service. The company focuses on Call Center Services, Customer Service Outsourcing, Sales Outsourcing, Business Consulting, and more and has a midsize team. The company is based in Margate, Florida; Hamilton Township, New Jersey and Rocky Mount, North Carolina.
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Keiser UniversityIndustries
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