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
-
$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
-
$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
-
181Undisclosed50 - 249 employeesMedAtlantic-Tell is a Tangier, Morocco-based call center company. They specialize in Call Center Services and Customer Service Outsourcing and were founded in 2018.Read More
Industries
-
182$1,000+10 - 49 employeesPort Washington, NYRead More
Blue Zebra Appointment Setting is a lead generation agency based in Port Washington, N.Y. Since 1989, their team of fewer than 10 works with clients in different industries like business and financial services and healthcare.
Clients
King PlasticsIndustries
-
183Undisclosed10 - 49 employeesKöln, GermanyTENIOS GmbH is an answering service. The Köln, Germany-based agency was launched in 2001. Their services include Call Center Services and Customer Service Outsourcing.Read More
Industries
-
184$1,000+50 - 249 employeesRead More
Extended Presence is a sales outsourcing and lead generation company based in Denver. Since 2002, their team of 21 has been specializing in voice services for clients in various industries such as information technology, education, financial services, and others.
Clients
OracleIndustries
-
185$1,000+250 - 999 employeesHyderabad, IndiaCavalry Info Pvt Ltd(CIPL) is a midsize answering service company established in 2016. Their services include Call Center Services and Back Office Outsourcing.Read More
Clients
BAJAJ FINSERVIndustries
-
186$1,000+10 - 49 employeesSarajevo, Bosnia and HerzegovinaRead More
EGA Connect is a contact center services provider in Sarajevo, Bosnia and Herzegovina. Founded in 2016, they have about 10 employees that serve small businesses in the IT, retail, and telecommunications sectors. Services include email marketing, voice services, and back office services.
Clients
Pets and People PortraitsIndustries
-
187$10,000+1,000 - 9,999 employeesSurry Hills, AustraliaUnity4 is a call center. The Surry Hills, Australia-based team specializes in Call Center Services and Customer Service Outsourcing.Read More
Industries
-
188$100,000+50 - 249 employeesIkeja, NigeriaIntercom Nigeria, a phone answering service, is based in Ikeja, Nigeria and FCT, Nigeria. They provide Call Center Services and unified communications consulting & SI and were established in 2010.Read More
Industries
-
189$1,000+10 - 49 employeesRoslin, ScotlandConnect Communications Services Ltd is a call center. They are headquartered in Roslin, Scotland and have small team. Their services include Call Center Services and Customer Service Outsourcing.Read More
Industries
-
190Undisclosed50 - 249 employeesICallify is a call center company. Headquartered in Miami, Florida, the firm provides Call Center Services and CRM consulting and SI.Read More
Industries
-
191$1,000+2 - 9 employeesHaflong, IndiaHeadquartered in Haflong, India and Gurugram, India, GrowQuikr Online Services LLP is a small Sales Outsourcing company. The team provides Sales Outsourcing.Read More
Industries
-
192$1,000+10,000+ employeesÖrebro, SwedenTranscom is a large telephone answering service located in Örebro, Sweden and Bacolod, Philippines. Their services include Call Center Services and Customer Service Outsourcing.Read More
Clients
FerrariIndustries
-
193$1,000+2 - 9 employeesGrownue is a Gurugram, India-based CRM consulting and SI company. The firm focuses on CRM consulting and SI, Market Research, Sales Outsourcing, Product Marketing, and more and is small.The firm was launched in 2024.Read More
Industries
-
194$5,000+10 - 49 employeesWarszawa, PolandH&K Soft Company is an e-commerce development firm. They provide e-commerce development, custom software development, web development, mobile app development, and more and were established in 2021. Their small team is headquartered in Batumi, Georgia.Read More
Industries
-
195$1,000+10,000+ employeesBengaluru, IndiaFounded in 2002, Infosys BPO is a call center company. The large team specializes in Call Center Services and Back Office Outsourcing.Read More
Clients
CiscoIndustries
-
196Undisclosed250 - 999 employeesFort Worth, TXTouchstone Communications is a phone answering service. The team is headquartered in Fort Worth, Texas and Islamabad, Pakistan, and their services include Call Center Services and Transcription.Read More
Industries
-
197Undisclosed1,000 - 9,999 employeesOgden, UTMarketStar is a Sales Outsourcing company. Established in 1988, the firm is in Ogden, Utah and Dublin, Ireland. Their services include Sales Outsourcing and Customer Service Outsourcing.Read More
Industries
-
198$5,000+1,000 - 9,999 employeesHa Noi, VietnamCustomer Service Outsourcing company Bellsystem24-HoaSao is headquartered in Ha Noi, Vietnam and Ho Chi Minh, Vietnam. Their services include Customer Service Outsourcing and Back Office Outsourcing.Read More
Clients
UberIndustries
-
199$5,000+50 - 249 employeesBucurești, RomaniaWorld Performance Group Srl is a call center company. They were established in 2012 and provide Call Center Services and Customer Service Outsourcing.Read More
Industries
-
200$1,000+1,000 - 9,999 employeesNacogdoches, TXIn Nacogdoches, Texas and Lufkin, Texas, Etech is a phone answering service. Their services include Call Center Services and Customer Service Outsourcing.Read More
Industries
-
201$1,000+250 - 999 employeesLos Angeles, CATelephone answering service One Contact Center offers Call Center Services and Back Office Outsourcing. They are located in Los Angeles, California and Pasig, Philippines.Read More
Industries
-
202$1,000+10 - 49 employeesHarlow, EnglandEstablished in 2004, Zebra Connexions Ltd is an answering service. The small team specializes in Call Center Services and Back Office Outsourcing.Read More
Industries
-
203$1,000+10 - 49 employeesFareham, EnglandSmall Sales Outsourcing company Inspired B2B Marketing, is located in Fareham, England. The team focuses on Sales Outsourcing and Back Office Outsourcing.Read More
Industries
-
204$1,000+50 - 249 employeesEdmonton, CanadaMetCredit is a phone answering service established in 1973. Their team focuses on Call Center Services.Read More
Industries
-
205$1,000+1,000 - 9,999 employeesSeattle, WADirect Interactions is a call center company in Seattle, Washington. Their services include Call Center Services and Customer Service Outsourcing.Read More
Industries
-
206$25,000+250 - 999 employeesPrague 8, Czech RepublicICON Communication Centres s.r.o. Is a Customer Service Outsourcing company founded in 2003. The company specializes in Customer Service Outsourcing and Call Center Services, and is midsize.Read More
Industries
-
207$1,000+1,000 - 9,999 employeesHo Chi Minh, VietnamTHIENTU CO.,LTD is a large Ho Chi Minh, Vietnam-based phone answering service. The team provides Call Center Services and Customer Service Outsourcing.Read More
Industries
-
208$1,000+50 - 249 employeesCrewe , EnglandLaunched in 2010, Cymphony is a midsize call center company. Their team offers Call Center Services.Read More
Industries
-
209$25,000+10,000+ employeescairo, EgyptXceed is a large call center service founded in 2001. Their team focuses on Call Center Services and Back Office Outsourcing.Read More
Industries
-
210Undisclosed1,000 - 9,999 employeesTelephone answering service Upsell Technologies is based in Toshima City, Japan and Cebu City, Philippines. The team offers Call Center Services and Sales Outsourcing.Read More
Industries
Featured providers
Get connected with a company for free
Tell us about your project, and we'll match you with vetted companies that meet your requirements.
Get connected with the right company for you
We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.
Schedule ConsultationMost Reviewed Call Centers
Connect with a Call Centers that received the most new reviews in the past 12 months.
Call Centers
- 11 7 new reviews
- 12 6 new reviews
- 13 5 new reviews
- 14 5 new reviews
- 15 5 new reviews
