Top 100 Inbound Call Centers
The Best of October 2026Looking for a top inbound call center service?
Inbound marketing is necessary to replenish your sales pipeline with new leads. It can help your company attract customers by creating valuable content that's tailored to them. Finding an inbound agency to work with, however, can be challenging.
That's why we've created this list of the best inbound call center services for you to review. Read through company descriptions, former clients, and notable projects to find the best fit for your business.
List of the Best Inbound Call Center Companies
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601$5,000+1,000 - 9,999 employeesKarachi, PakistanEPlanet communication Pvt. Ltd. Is a Customer Service Outsourcing company. They offer Customer Service Outsourcing and Call Center Services and were established in 2003.Read More
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602$1,000+250 - 999 employeesChennai, IndiaRead More
Infosearch BPO Services Pvt. Ltd., a Data Annotation Services company, is headquartered in Chennai, India. They offer Data Annotation Services, Back Office Outsourcing, and Call Center Services and were established in 2005.
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AGCOIndustries
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603$1,000+50 - 249 employeesWest Chester, OHRead More
Founded in 2001, Srisys Inc is an IT consulting and software development firm. Srisys Inc’s 65 employees can be found in its West Chester, Ohio headquarters or its additional offices in Cincinnati, Ohio and India. Srisys Inc provides voice/call center services, BPO and back office services, and HR consulting and outsourcing to the government and consumer and financial services companies.
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Cincinnati ParksIndustries
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604Undisclosed1,000 - 9,999 employeesPasay, PhilippinesEPerformax Contacts Center and BPO is a large phone answering service in Pasay, Philippines. The team offers Call Center Services.Read More
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605$1,000+10 - 49 employeesRead More
Noodesk, a non-voice bpo/back office services company, was founded in 2020. The small Montréal, Canada-based team focuses on non-voice bpo/back office services, marketing strategy, accounting, contract manufacturing, and more.
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606$10,000+1,000 - 9,999 employeesKakkanad, IndiaFounded in 2002, Aabasoft, a large call center service, is in Kakkanad, India. Their team offers Call Center Services and cloud consulting & SI.Read More
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607$1,000+250 - 999 employeesRead More
Harris BPO is an outsourcing agency based in Slough, UK. With close to 1,000 employees, the agency specializes in non-voice BPO and voice services, as well as HR consulting & outsourcing. Harris BPO mainly works with clients in government, consumer products & services, and energy & natural resources industries.
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KelloggIndustries
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608$1,000+50 - 249 employeesSurat, IndiaRead More
Votiko, an answering service, was launched in 2014. They are in Surat, India; Canton, Michigan and Ottawa, Canada and have a midsize team. Their services include call center services, social media marketing, search engine optimization, back office outsourcing, and more.
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609Undisclosed50 - 249 employeesLaunched in 2011, MedVoice Inc is a midsize back office outsourcing company. Their team provides back office outsourcing, call center services, and transcription. The agency is located in Birmingham, Alabama.Read More
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610$1,000+10 - 49 employeesBPO VA - Out of Business is a non-voice bpo/back office services and answering service company. They specialize in non-voice bpo/back office services and voice services and were launched in 2016. The firm is in Perth , Australia and Melbourne , Australia.Read More
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611$1,000+250 - 999 employeesLondon, EnglandOnline Giants is a call center founded in 2013. The company offers Call Center Services and Customer Service Outsourcing.Read More
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612$1,000+1,000 - 9,999 employeesGurugram, IndiaMaxicus, a Customer Service Outsourcing company, is in Gurugram, India and Amritsar, India. They provide Customer Service Outsourcing and Back Office Outsourcing and were launched in 2003.Read More
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613$5,000+10 - 49 employeesTallinn, EstoniaBased in Tallinn, Estonia, Attekmi is a media planning and buying company. The agency offers Media Planning & Buying, Customer Service Outsourcing, IT managed services, Custom Software Development, and more and is small.The agency was founded in 2018.Read More
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614$10,000+10 - 49 employeesShelton, CTCold Call Me is a Sales Outsourcing company launched in 2021. They are in Shelton, Connecticut and have a small team. The company specializes in Sales Outsourcing, Demand Generation Marketing, Account-Based Marketing, Call Center Services, and more.Read More
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615$250,000+10,000+ employeesSingaporeFounded in 2016, Everise is a branding firm. In Singapore and Austin, Texas, the team specializes in Branding and IT managed services.Read More
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616$1,000+10 - 49 employeesRead More
onebox is a voice services and transportation company based in the United Kingdom. Founded in 2000, their team of 30 serves clients in the real estate and financial services sectors. Services include voice and call center efforts.
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617$1,000+2 - 9 employeesNevora Smart Solutions is a small Finance & Accounting Outsourcing (FAO) company. Established in 2025, the firm is located in Clarkston, Michigan. Their team focuses on Finance & Accounting Outsourcing (FAO), Sales Outsourcing, Customer Service Outsourcing, Back Office Outsourcing, and more.Read More
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618$1,000+50 - 249 employeesGütersloh, GermanyMaxupport GmbH is a midsize Customer Service Outsourcing company founded in 1996. Their services include Customer Service Outsourcing and Call Center Services.Read More
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619$1,000+10 - 49 employeesArmenia, ColombiaBrave Solutions is a staffing company. They provide staffing, recruitment process outsourcing, and customer service outsourcing and were founded in 2023. Their small team is located in Armenia, Colombia.Read More
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620$1,000+50 - 249 employeesElement Ops is a midsize Sales Outsourcing company. They offer Sales Outsourcing, Back Office Outsourcing, Customer Service Outsourcing, and Data Annotation Services and were founded in 2023. The firm is in Los Angeles, California.Read More
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621Undisclosed250 - 999 employeesBuenos Aires, ArgentinaCustomer Service Outsourcing company Grupo PYD is headquartered in Buenos Aires, Argentina. Their services include Customer Service Outsourcing and Sales Outsourcing.Read More
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622$1,000+10 - 49 employeesChennai, IndiaPhone answering service Siplink Communications is located in Chennai, India. They offer Call Center Services and were launched in 2015.Read More
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623Undisclosed1,000 - 9,999 employeesSeoul, South KoreaDigital Hearts Co., Ltd., a Translation company, was founded in 2001. The company offers Translation and Call Center Services.Read More
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624Undisclosed50 - 249 employeesToronto, CanadaPhone answering service VereQuest is based in Toronto, Canada. The team focuses on Call Center Services and IT strategy consulting.Read More
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625Undisclosed50 - 249 employeesBoston, MACogito Corp, an artificial intelligence development company, is headquartered in Boston, Massachusetts. The midsize firm was founded in 2007. Their services include Artificial Intelligence, BI & big data consulting & SI, non-voice bpo/back office services, and voice services.Read More
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626$1,000+10 - 49 employeesLahore, PakistanDispatching Answering Service is a call center company. In Lahore, Pakistan, the company provides Call Center Services and Customer Service Outsourcing.Read More
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627Undisclosed10 - 49 employeesWheelers Hill, AustraliaAlltel Australia is a Customer Service Outsourcing company. They specialize in Customer Service Outsourcing and Call Center Services and are headquartered in Wheelers Hill, Australia.Read More
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628$1,000+10 - 49 employeesLondon, EnglandCustomer Service Outsourcing company 3C Online was launched in 2015. The team specializes in Customer Service Outsourcing and Sales Outsourcing.Read More
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OxehealthIndustries
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629Undisclosed50 - 249 employeesDhaka, BangladeshLaunched in 2011, Impel Service & Solutions Limited (ISSL) is a midsize Customer Service Outsourcing company. Their team provides Customer Service Outsourcing and Custom Software Development.Read More
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630$1,000+50 - 249 employeesChennai, IndiaRead More
Founded in 2014, BOSS HealthCare is a BPO services provider with about 10 employees based in Chennai, India. BOSS HealthCare offers non-voice BPO/back office services, voice/call center services, and transcription capabilities to clients in the health care & medical industry.
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