Top 100 Call Center Services

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Top 100 Call Center Services

February 2023

Looking for a top 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. 

Jump to Most Reviewed Companies

List of the Best Voice Services Providers on the Market

  • 4
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 50 - 249 employees
    • Denver, CO

    Belkins is a technology company that leverages proprietary technology and a unique methodology to set appointments with target client prospects for revenue leaders in a variety of industries. Our award-winning, blended SAAS and Service model has been fine-tuned over the last 5 years and has supported hundreds of clients globally.

    Clients

    • Cisco
    • ITernal Group
    • FrontCore
    • Digital Knights

    Industries

    Notable Project

    Belkins led a video surveillance firm's outbound marketing to generate leads from the oil and energy industry. They wrote and sent cold emails and scheduled meetings with highly qualified leads.

    "Sometimes they used various strategies and tackled the same prospects with different messages, keeping them fresh."

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  • 5
    • $5,000+
    • 1,000 - 9,999 employees
    • Denver, CO

    Cience is a PaaS (People as a Service) company based in Los Angeles. It has offices in Ukraine and Manila and was established in 2015. Their team of more than 550 employees offers voice services, conversion optimization, and CRM consulting and SI services. 

    Clients

    • Nasdaq
    • US Bank
    • Salesforce
    • Google

    Industries

    Notable Project

    CIENCE Technologies helped a streaming advertising company with their outbound sales motion. They researched contacts, created a database, and reached out via email, LinkedIn, and phone calls.

    "The workflow was very seamless and effective."

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  • 6
    • Scheduling

      4.9
    • Quality

      4.8
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 1,000 - 9,999 employees
    • Lexington, KY

    Helpware is a call center located in Los Angeles that was founded in 2015. Their team of around 135 employees specializes in voice services, non-voice BPO and back-office services, HR consulting and outsourcing, transcription, and more.

    Clients

    • DoorDash
    • Headspace
    • Jam City
    • Bittrex

    Industries

    Notable Project

    Helpware provides sales outsourcing services to a financial services firm to help them maximize their productivity and save time.

    "The company has become more productive, and the sales have gotten a little bit higher than before."

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  • 7
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.7
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 50 - 249 employees
    • Oakville, Canada

    Martal Group is a sales agency based in Oakville, Canada and San Francisco. Founded in 2009, their team currently consists of 70 employees, who serve mostly technology companies in SaaS, Enterprise software and IT sectors. They offer services in outbound lead generation, appointment setting, account management, and sales.

    Clients

    • Bosch
    • Zoho
    • Halo
    • MicroFocus

    Industries

    Notable Project

    Martal Group is helping an IT company build their initial lead generation pipeline by conducting marketing campaigns. They have reviewed the client's web presence and initial outbound email marketing.

    "Martal Group is a complete all-around package of professionalism and quality."

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  • 8
    • Scheduling

      4.6
    • Quality

      4.6
    • Cost

      4.3
    • NPS

      4.6
    Read Full Reviews on Clutch Visit Site
    • Undisclosed
    • 250 - 999 employees
    • Los Angeles, CA

    Callbox is a business process outsourcing company based in Encino, Calif., with offices in Singapore, Ultimo, Australia, and the Philippines. Founded in 2004, Callbox's team of 174 provides voice services and non-voice BPO/back office services.

    Clients

    • Alima Technologies
    • Intrepid Advisors
    • LexisNexis
    • LiQWID

    Industries

    Notable Project

    A SaaS provider has engaged with Callbox for demand generation. They create a list of target accounts, a landing page, email and message copy, a calling script, and a multi-channel demand generation program.

    "Callbox is an experienced demand generation company."

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  • 9
    • $1,000+
    • 1,000 - 9,999 employees
    • Hollywood, FL

    Remote CoWorker is a virtual assistant outsourcing company founded in 2013 and located in Hollywood, Fla. They have a team of about 10 employees who offer non-voice BPO/back office services, along with voice, finance and accounting outsourcing, and HR services. Their client base comprises small business in the real estate, business services, IT, and telecommunications industries.

    Clients

    • Amazon
    • Aavgo
    • TheDreamzTeam
    • Managed IT Solutions

    Industries

    Notable Project

    Remote CoWorker provides customer support services to a mental health organization. They manage the client's incoming calls and direct a Zoom traffic hub.

    "Having them handle our Zoom traffic has allowed us to grow our client base."

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  • 10
    • $10,000+
    • 10,000+ employees
    • Kolkata, India

    Fusion BPO Services is a global business process outsourcing firm headquartered in Montreal, Canada, that was established in 2004. Their team of over 1000 employees offers voice BPO, non-voice BPO, and transcription services.

    Clients

    • PAYTM
    • TATA
    • SNAPDEAL
    • RELIANCE JIO

    Industries

    Notable Project

    Fusion BPO Services offered customer service outsourcing for a digital tech company. The client wants a multilingual platform that is cost-effective and near-shore.

    "About 20 highly experienced customer service agents communicated with us quite smoothly."

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  • 11
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • Undisclosed
    • 250 - 999 employees
    • Los Altos, CA

    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.

    Clients

    • Hacking Law Practice
    • Wondermint
    • Fagan Fagan & Davis
    • Merchbar

    Industries

    Notable Project

    Smith.ai serves as the 24/7 virtual receptionist of an immigration law firm. They answer and make calls in English and Spanish using the client-provided script and send the call recordings to the client.

    "We get recordings of all the calls taken, which are great tools to help with quality assurance."

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  • 12
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 50 - 249 employees
    • Boca Raton, FL

    SalesRoads is a B2B appointment setting and lead generation provider based in Coral Springs, Fla. that was established in 2006. Their team of more than 30 employees offers sales outsourcing and telemarketing services.

    Industries

    Notable Project

    SalesRoad is responsible for reaching out to qualified prospective clients in the telecommunications industry and set up appointments for the internal sales team.

    "I'm impressed by their work effort, desire to be successful, and willingness to make adjustments."

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  • 13
    • $1,000+
    • 250 - 999 employees
    • Wilmington, DE

    SupportYourApp is a customer support outsourcing company based in Kiev, Ukraine. Founded in 2010, SupportYourApp's team of more than 400 employees provides non-voice BPO/back office services and voice services. 

    Clients

    • Mastercard
    • Amazon
    • HERE Technologies
    • MacPaw

    Industries

    Notable Project

    SupportYourApp provides customer support services for a mediation app in 19 languages. The team handles the client's social media accounts, processes documentation, and escalates complex cases.

    "They are always ready to help and take on new things and responsibilities."

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  • 14
    • $1,000+
    • 250 - 999 employees
    • Gilbert, AZ

    Unity Communications, founded in 2009, is a BPO company headquartered in Tempe, Ariz., with additional offices in Global City, Philippines; Santo Domingo, Dominican Republic; and San Jose, Costa Rica. The team mainly provides non-voice BPO and back-office services, but they also do cloud consulting & SI, and IT strategy consulting. Equipped with 28 employees, they work with mid-market and small businesses in the telecommunications, business services, and GPS, navigation & GIS industries.
     

    Clients

    • ATT
    • RingCentral
    • Wireless Watchdogs
    • MSP's

    Industries

    Notable Project

    Unity Communications provides back office outsourcing services to a law firm. They handle the client's tech and e-commerce issues.

    "I'm impressed by how quickly they can resolve technical issues remotely."

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  • 15
    • $1,000+
    • 50 - 249 employees
    • Berkeley, CA

    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.

    Industries

    Notable Project

    Luminary Leaders hired Wing Assistant for a variety of tasks including research, preparing spreadsheets, graphic design, outbound emails and follow-up, appointment scheduling, and website maintenance.

    "I love working with Wing and plan to have a long-term working relationship."

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  • 16
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.4
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 250 - 999 employees
    • Austin, TX

    Located in Austin, EBQ has a team of around 250 working with clients in the IT, advertising, and business industries. They provide voice services, CRM consulting, and email marketing expertise to clients looking for B2B lead generation and appointment setting.

    Industries

    Notable Project

    EBQuickstart collaborates with an internal sales team to follow up with potential leads over the phone.

    "Our sales team is pleased with the number of appointments they set." 

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  • 17
    • $1,000+
    • 50 - 249 employees
    • Durrës, Albania

    Dalerio Consulting is a consultancy founded in 2017 in Durres, Albania with no more than 10 experts. They specialize in social media marketing, email marketing, and SEO solutions for small and mid-market agencies in the industries of advertising and business services.

    Clients

    • KlimaTek
    • Korrieri

    Industries

    Notable Project

    Dalerio Consulting handles the digital marketing needs of a construction company. Their tasks also include designing and maintaining the client's website.

    "Their communications skills have been flawless."

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  • 18
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 50 - 249 employees
    • New York, NY

    CrewBloom is an outsourcing partner based in New York. Founded in 2016, their team of around 60 employees provides back-office services and voice services.

    Clients

    • WebFX
    • Pfizer
    • Allstate
    • Asurea

    Industries

    Notable Project

    CrewBloom provides ongoing call center services for an automated sales and marketing software solution. They respond to inbound leads who are currently using a free trial version, encouraging more subscriptions.

    "They have great communication and are a very experienced team."

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  • 19
    • Scheduling

      4.8
    • Quality

      4.7
    • Cost

      4.4
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • Los Angeles, CA

    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.

    Clients

    • LeaseLock
    • Bambee
    • MeMD
    • Kustomer

    Industries

    Notable Project

    Cleverly provides social media marketing services for a market research firm. They are utilizing LinkedIn to reach out to users to complete an online survey.

    "With the results they provide, they know what they’re doing, so I won't suggest a change. Keep it up!"

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  • 20
    • $10,000+
    • 1,000 - 9,999 employees
    • Cambridge, MA

    Founded in 2015, Peak Support is a Boston-based business process outsourcing (BPO) provider. Their approximately 250 employees provide both voice services like inbound appointment scheduling and B2C telemarketing. They also provide email- and chat-focused customer support.

    Clients

    • Ministry of Supply
    • Public Rec
    • BloomNation

    Notable Project

    Peak Support provided an outsourced call center team to provide customer support for an apparel company. Their team was tasked with speaking to customers via chat, email, and phone

    "They have a consistent grasp and awareness of metrics at all times."

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  • 21
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 50 - 249 employees
    • Orlando, FL

    Leadium is a voice services firm based in Alexandria, Va., with an additional office in Kiev, Ukraine. Founded in 2016, the team of 100 specializes in email marketing, market research and CRM consulting and SI. They work primarily with small business clients, mostly in the IT industry.

    Clients

    • DirecTV
    • Minted
    • Segment
    • Zadara

    Industries

    Notable Project

    Leadium provides outbound marketing and lead generation, planning a scope of work to increase annual recurring revenue rates.

    “I’m blown away their knowledge of outbound prospecting and lead generation.”

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  • 22
    • $1,000+
    • 250 - 999 employees
    • Dnipro, Ukraine

    Simply Contact is an outsourcing contact center based in Dnipro, Ukraine. The contact center, founded in 2015, has more than 400 employees and provides non-voice BPO/back office services and voice services. Simply Contact serves mid-market and other-sized companies in various industries that include hospitality & leisure; supply chain, logistics, and transport; and e-commerce.

    Clients

    • Wizz Air
    • Metro Cash&Carry
    • Bolt
    • Yves Rocher

    Industries

    Notable Project

    Simply Contact provided call center services for leading HR services and business process provider. The team handled the outbound calls and outbound activity such as rating the qualification of job seekers.

    "They’re not complacent and are always looking for additional things to do."

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  • 23
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.9
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 50 - 249 employees
    • Kyiv, Ukraine

    SalesAR is a B2B lead generation company from Kyiv, Ukraine. Since 2019, their team of 25 employees provides email marketing and content marketing mostly to small businesses in the advertising, IT, and business services industries.

    Clients

    • Vedamo
    • SoftServe Business Systems
    • Pharmax
    • Tricent

    Industries

    Notable Project

    SalesAR provided lead generation services for a modular financial platform. They formed an ideal customer profile, created a content strategy, researched 1,000 contacts monthly, and conducted LinkedIn outreach.

    "We enjoyed their work efficiency, how they delivered reports, and their commitment to learning more about our company."

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  • 24
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • Covina, CA

    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

    • LG
    • Hotel Tonight
    • Munchery
    • 99designs

    Industries

    Notable Project

    Upcall provides call center services across the US for a marketing firm. They handle outbound calls using the provided script and contact list and set appointments in Calendly for real-time reservations.

    "The professionalism, automation, and US-based callers have provided the value I needed."

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  • 25
    • Scheduling

      4.7
    • Quality

      4.7
    • Cost

      4.4
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 250 - 999 employees
    • Miami Beach, FL

    Uassist.ME is a virtual assistance services firm founded in 2009. Based in El Salvador, the team of over 150 employees specializes in non-voice BPO/back office services, voice services, and HR services.

    Clients

    • Facebook
    • Twitter
    • Uber
    • Instagram

    Notable Project

    Uassist.ME provides a remote team to perform administrative and marketing tasks for a property management firm. They interact with clients, close deals, and coordinate digital marketing and content efforts.

    "The quality of the work that their talent delivers is superior."

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  • 26
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 250 - 999 employees
    • Portland, OR
    Prialto is a midsize non-voice bpo/back office services company. Headquartered in Portland, Oregon; Guatemala City, Guatemala and Manila, Philippines, the company was launched in 2008. Their services include non-voice bpo/back office services and voice services.

    Clients

    • Headline
    • Woodruff Sawyer
    • Rapid7
    • Graham Company

    Industries

    Notable Project

    Prialto provides back-office support for an insurance company. They ensure good customer experiences and help customers find products that ultimately correspond to their goals.

    "We have been steadily climbing with sales in our company and are managing our clients better."

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  • 27
    • Scheduling

      4.7
    • Quality

      4.7
    • Cost

      3.4
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 50 - 249 employees
    • Evanston, IL

    Founded in 2004, Acquirent is a telephone answering service. The small Evanston, Illinois-based team specializes in voice services and CRM consulting and SI.

    Clients

    • HomeAdvisor
    • Weight Watchers
    • Logistyx Technologies
    • Greenlight Medical

    Industries

    Notable Project

    Acquirent provides sales outsourcing services to a delivery company. They help the client convince other businesses to work with them and bring in potential partners. 

    "They act fast and are very reliable."

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  • 28
    • $1,000+
    • 1,000 - 9,999 employees
    • Princeton, NJ

    Flatworld Solutions is an outsourcing company headquartered in Princeton, N.J. Founded in 2006, they have a team of over 750 employees. The firm's international offices are based across India, the U.K, and the Philippines and has experience in nonvoice/ back office, transcription, and call center services. Their Clients mostly work in manufacturing, education, and healthcare industries. 

    Clients

    • MSN
    • Korchina
    • Fujitsu
    • Yale School of Management

    Industries

    Notable Project

    Flatworld Solutions designed and built the second version of a baseball development center's mobile app. 

    "The team really did well with accommodating feedback and fixing issues in a timely manner."

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  • 29
    • Undisclosed
    • 10 - 49 employees
    • Rockland, MA

    MoreMeetings.com is a B2B sales appointment company headquartered in Rockland, Mass. Founded in 2001, they have a team of 15 employees. Their main focus lines are voice services and corporate training, primarily for the IT industry.

    Clients

    • Fujitsu
    • Virtana
    • Hitachi
    • & Equinix.

    Industries

    Notable Project

    MoreMeetings.com screened potential customers to identify qualified leads, scheduled and managed meetings, and handled all follow-up.

    "We always had frank, open discussions. They weren’t a typical vendor but a true partner."

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  • 30
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.4
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 10,000+ employees
    • Wei Fang Shi, China

    Welsend Telecom Co., Ltd. Is a CRM consulting and SI company. Their large team is in Weifang, China; Chengdu, China; Mianyang, China and Rizhao, China. Their services include CRM consulting and SI, voice services, and non-voice bpo/back office services. The firm was founded in 1999.

    Industries

    Notable Project

    A government hotline team has collaborated with Welsend for call center services. The team provides 24-hour customer service support and is responsible for a particular hotline to professionally handle traffic. 

    "These are a team of lovely, tireless, brave, patient, and passionate agents!"

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