Top 100 Telecommunication Companies Call Center Services
The Best of December 2025Looking for a top telecommunication contact center?
Review this list of best call services on the market to determine the best fit for your company. Voice services companies provide value to your company: automating your client communication allows your company the flexibility to devote resources to core firm-building activities.
Check out our directory of Telecommunication Companies call centers. Browse reviews and ratings and scan by industry or specialty to find the company that's the best fit for you.
List of the Best Telecommunications 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.
Industries
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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
Industries
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1$1,000+250 - 999 employeesOakville, CanadaRead More
Martal 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.
Clients
BoschIndustries
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2$1,000+50 - 249 employeesLaguna Beach, CALaunched in 2021, LevelUp Leads is a midsize Sales Outsourcing company. Their team specializes in Sales Outsourcing, Email Marketing, and Call Center Services. The firm is in Laguna Beach, California and Laguna Beach, California.Read More
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3$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
Industries
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4$1,000+1,000 - 9,999 employeesGilbert, AZRead More
Unity Communications is a Gilbert, Arizona-based Back Office Outsourcing company. Founded in 2009, the large team offers Back Office Outsourcing, Employer of Record (EOR) Services, Customer Service Outsourcing, Call Center Services, and more.
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ATTIndustries
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5$1,000+250 - 999 employeesWarszawa, PolandRead More
Simply Contact is a Warszawa, Poland-based Customer Service Outsourcing company. The midsize agency was established in 2013. Their services include Customer Service Outsourcing, Call Center Services, and Back Office Outsourcing.
Clients
Wizz Air Office of the President of Ukraine Fareportal AirportrIndustries
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6$1,000+50 - 249 employeesChicago, ILHit Rate Solutions, a call center service, is based in Chicago, Illinois and Bacolod, Philippines. The midsize team offers Call Center Services, Back Office Outsourcing, Customer Service Outsourcing, and Sales Outsourcing. The firm was founded in 2011.Read More
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CleanWel SolutionsIndustries
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7Undisclosed1,000 - 9,999 employeesLos Angeles, CARead More
Callbox is a Sales Outsourcing company. The Los Angeles, California-based firm was founded in 2004. The large team focuses on Sales Outsourcing, Customer Service Outsourcing, Call Center Services, and Back Office Outsourcing.
Clients
Alima TechnologiesIndustries
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8$50,000+10,000+ employeesWei Fang Shi, ChinaWelsend is a Customer Service Outsourcing company founded in 1993. They are headquartered in Wei Fang Shi, China; Taguig, Philippines; Cheng Du Shi, China and Rizhao, China and have a large team. Their services include Customer Service Outsourcing, Call Center Services, CRM consulting and SI, and Back Office Outsourcing.Read More
Industries
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9$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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10$5,000+1,000 - 9,999 employeesCebu City, PhilippinesFounded in 2008, Select VoiceCom is a phone answering service. Their large team is based in Cebu City, Philippines; Davao City, Philippines and Savannah, Georgia. Their team specializes in Call Center Services, Customer Service Outsourcing, Sales Outsourcing, Finance & Accounting Outsourcing (FAO), and more.Read More
Industries
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11$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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12$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
Industries
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13$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
Clients
TravelWifiIndustries
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14$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.
Clients
GrouponIndustries
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15$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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16$1,000+250 - 999 employeesKyiv, UkraineFounded in 2017, LimTC is a midsize Customer Service Outsourcing company located in Kyiv, Ukraine. Their services include Customer Service Outsourcing, Back Office Outsourcing, Call Center Services, and HR Outsourcing.Read More
Clients
eKomi LtdIndustries
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17$1,000+1,000 - 9,999 employeesVSynergize is a call center founded in 2000. They are headquartered in Westborough, Massachusetts and have a large team. Their services include Call Center Services, Back Office Outsourcing, Robotics Process Automation, and Generative AI.Read More
Industries
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18$1,000+10 - 49 employeesFredericton, CanadaAtlantic Growth Solutions, a Sales Outsourcing company, was founded in 2013. The small team offers Sales Outsourcing, Corporate Training & Coaching, CRM consulting and SI, and Recruiting. The firm is based in Fredericton, Canada.Read More
Clients
BlackberryIndustries
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19$5,000+50 - 249 employeesHitchin, EnglandExcelerate360 Ltd is a Sales Outsourcing company. They are in Hitchin, England and have a midsize team. Their services include Sales Outsourcing.Read More
Industries
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20Undisclosed1,000 - 9,999 employeesNoida, IndiaPhone answering service Go4customer was established in 2004. Their large team is headquartered in Noida, India; Jaipur, India; Navi Mumbai, India and Bengaluru, India. Their services include Call Center Services, Customer Service Outsourcing, Market Research, and Sales Outsourcing.Read More
Clients
MSMEIndustries
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21$1,000+10 - 49 employeesEnsenada, MexicoRead More
Sales Outsourcing company First Point Communications is headquartered in San Diego, California and Ensenada, Mexico. The small company was established in 2014. Their services include Sales Outsourcing, Call Center Services, Back Office Outsourcing, Direct Marketing, and more.
Clients
Canon Solutions AmericaIndustries
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22$5,000+1,000 - 9,999 employeesMahwah, NJRead More
DialAmerica is a business process outsourcing firm headquartered in Mahwah, N.J. with offices in New York City, Athens, Ga., Charleston, and Cleveland. Founded in 1957, they have over 5000 employees. Their services include voice call process outsourcing, but they offer non-voice services as well.
Clients
TIME MagazineIndustries
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23$1,000+10 - 49 employeesIowa City, IARead More
In Iowa City, Iowa, Uptown Creation is a small direct marketing company. Founded in 2016, the team focuses on direct marketing, marketing strategy, other marketing, email marketing, and more.
Industries
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24$1,000+1,000 - 9,999 employeesPasig, PhilippinesAcquire Intelligence is a Back Office Outsourcing company. The large Pasig, Philippines-based team offers Back Office Outsourcing, Customer Service Outsourcing, Call Center Services, and Sales Outsourcing. The agency was launched in 2005.Read More
Clients
FlexigroupIndustries
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25$1,000+50 - 249 employeesCall Masters BPO is a call center company. Launched in 2021, the team focuses on call center services. Their midsize firm is Sheridan, Wyoming-based.Read More
Industries
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26$1,000+1,000 - 9,999 employeesGurugram, IndiaRead More
MattsenKumar is a back office services provider based in Woodburn, Ore., with an office in Gurgaon, India. Founded in 2010, MattsenKumar's team of 364 employees offers voice/call center services and non-voice BPO/back office services.
Industries
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27$5,000+250 - 999 employeesKalyan, IndiaRead More
Tasks Expert is a social media marketing agency located in Killeen, Texas and Kalyan, India. The firm focuses on social media marketing and has a small team.The firm was founded in 2017.
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28$1,000+1,000 - 9,999 employeesWarszawa, PolandAxendi is a Customer Service Outsourcing company headquartered in Warszawa, Poland; Łódź, Poland; Lublin, Poland and Lublin, Poland. The large firm was launched in 2008. Their services include Customer Service Outsourcing, Call Center Services, and Back Office Outsourcing.Read More
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29$1,000+250 - 999 employeesKyiv, UkraineRead More
Answering service Global Bilgi was established in 2008. Their midsize team is in Kyiv, Ukraine and Dnipro, Ukraine. Their services include voice services, non-voice bpo/back office services, CRM consulting and SI, HR services, and more.
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30$5,000+50 - 249 employeesRochester, NHRead More
eCoast Marketing is a marketing agencies company based in Rochester, NH. Founded in 2000, their team of 199 employees provides voice services, marketing, and direct marketing services.
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Juniper NetworksIndustries
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