Top 100 Call Center Services in the United States

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Top 100 Call Center Services in the United States

The Best of October 2026

Looking for a top voice service and call center company in the United States?

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.

To assist you in your search for a partner, we’ve compiled this list of the top voice and call center services in United States. 

Jump to Most Reviewed Companies

List of the Best United States Voice Services Providers

  • 1
    (234 Reviews) 4.9

    Timeliness

    4.9

    Service Excellence

    4.8

    Value

    4.8

    Would Recommend

    4.9
    $1,000+
    50 - 249 employees
    Denver, CO

    Belkins is a midsize Sales Outsourcing company launched in 2017. Their services include Sales Outsourcing, Email Marketing, CRM consulting and SI, and Call Center Services. The company is in Denver, Colorado; Kyiv, Ukraine; Cheyenne, Wyoming and Lombard, Illinois.

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    Clients

    Nvidia General Electric Zendesk UC Berkeley

    Industries

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  • 2
    (109 Reviews) 4.8

    Timeliness

    4.9

    Service Excellence

    4.7

    Value

    4.6

    Would Recommend

    4.8
    $1,000+
    250 - 999 employees
    San Francisco, CA
    Martal Group is an answering service. They are located in Oakville, Canada; San Francisco, California and Uniondale, New York and have a midsize team that provides Call Center Services, Sales Outsourcing, and Email Marketing. The agency was launched in 2009.
    Read More

    Clients

    Bosch

    Industries

  • 3
    (44 Reviews) 4.6

    Timeliness

    4.6

    Service Excellence

    4.6

    Value

    4.6

    Would Recommend

    4.6
    $1,000+
    250 - 999 employees
    St. Louis, MO
    Abstrakt is a St. Louis, Missouri-based Sales Outsourcing company. The midsize team provides Sales Outsourcing, Content Marketing, and Web Design. The firm was launched in 2009.
    Read More

    Industries

  • 4
    (61 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    4.9

    Value

    4.9

    Would Recommend

    4.9
    $5,000+
    50 - 249 employees
    Laguna Beach, CA
    LevelUp Leads is a Sales Outsourcing company. They are headquartered in Laguna Beach, California and Laguna Beach, California and have a midsize team. Their services include Sales Outsourcing, Call Center Services, and Email Marketing.
    Read More

    Industries

  • 5
    (90 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    4.9

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Las Vegas, NV
    Leadium is a Las Vegas, Nevada-based Sales Outsourcing company. The company offers Sales Outsourcing, Content Marketing, Call Center Services, and Email Marketing and is midsize.The company was founded in 2016.
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    Clients

    DirecTV

    Industries

  • 6
    (128 Reviews) 4.6

    Timeliness

    4.7

    Service Excellence

    4.5

    Value

    4.3

    Would Recommend

    4.6
    Undisclosed
    1,000 - 9,999 employees
    Los Angeles, CA
    Callbox is a large Sales Outsourcing company based in Los Angeles, California; Singapore, Singapore; Ultimo, Australia and Medellín, Colombia. Launched in 2004, the team offers Sales Outsourcing, Customer Service Outsourcing, Back Office Outsourcing, and Call Center Services.
    Read More

    Clients

    Alima Technologies

    Industries

  • 7
    (69 Reviews) 4.9

    Timeliness

    4.9

    Service Excellence

    4.8

    Value

    4.6

    Would Recommend

    4.9
    $10,000+
    50 - 249 employees
    Boca Raton, FL

    SalesRoads is a Sales Outsourcing company. Their midsize team is based in Boca Raton, Florida; Haddonfield, New Jersey and Philadelphia, Pennsylvania. The agency focuses on Sales Outsourcing, Email Marketing, and Call Center Services. The agency was founded in 2007.

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    Industries

  • 8
    (44 Reviews) 4.8

    Timeliness

    4.9

    Service Excellence

    4.8

    Value

    4.5

    Would Recommend

    4.8
    $5,000+
    250 - 999 employees
    Austin, TX
    Launched 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

    Industries

  • 9
    (24 Reviews) 4.2

    Timeliness

    0.6

    Service Excellence

    0.6

    Value

    0.6

    Would Recommend

    4.3
    Undisclosed
    250 - 999 employees
    Tampa, FL
    AnswerFirst, a telephone answering service, was founded in 1998. The company provides Call Center Services and Customer Service Outsourcing and has a midsize team.
    Read More

    Industries

  • 10
    (45 Reviews) 5.0

    Timeliness

    4.9

    Service Excellence

    4.9

    Value

    4.8

    Would Recommend

    5.0
    $1,000+
    250 - 999 employees
    Portland, OR

    Prialto is a leading managed staffing and BPO company led by a Wharton MBA and former McKinsey & Co executive. Headquartered in Portland, Oregon, Prialto was launched in 2008 and serves top venture capital, financial services, biotech, insurance, and real estate firms. Prialto's services include managed staffing, seamless back-office function processing, and business automation.

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    Clients

    Headline

    Industries

  • 11
    (51 Reviews) 4.7

    Timeliness

    3.9

    Service Excellence

    3.9

    Value

    3.9

    Would Recommend

    4.6
    Undisclosed
    10 - 49 employees
    King of Prussia, PA
    Specialty Answering Service is a small call center. They specialize in Call Center Services and Customer Service Outsourcing and were founded in 1985. The company is in King of Prussia, Pennsylvania.
    Read More

    Industries

  • 12
    (26 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    4.9

    Would Recommend

    5.0
    $5,000+
    10 - 49 employees
    Dover, DE
    Funnel Bakers is a small Dover, Delaware-based Sales Outsourcing company. Established in 2019, the team provides Sales Outsourcing, Email Marketing, and CRM consulting and SI.
    Read More

    Clients

    Podean

    Industries

  • 13
    (6 Reviews) 4.8

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    4.5

    Would Recommend

    4.8
    $10,000+
    50 - 249 employees
    Tampa, FL
    Clarify is a Sales Outsourcing company. The midsize Tampa, Florida-based firm was founded in 2003. Their services include Sales Outsourcing, Account-Based Marketing, Demand Generation Marketing, Marketing Strategy, and more.
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    Clients

    Paypal Adobe SAP

    Industries

  • 14
    (36 Reviews) 4.7

    Timeliness

    4.8

    Service Excellence

    4.7

    Value

    4.8

    Would Recommend

    4.8
    $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.

    Read More

    Industries

  • 15
    (19 Reviews) 4.9

    Timeliness

    5.0

    Service Excellence

    4.9

    Value

    5.0

    Would Recommend

    4.9
    Undisclosed
    50 - 249 employees
    Jackson, MI
    Ambs 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

    Clients

    Cadillac Michigan State University Caterpillar Macallister

    Industries

  • 16
    (17 Reviews) 5.0

    Timeliness

    4.9

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $10,000+
    10 - 49 employees
    New York, NY
    SalesGent is a small Paris, France-based Sales Outsourcing company. Founded in 2019, the team specializes in Sales Outsourcing.
    Read More

    Clients

    Zymplify

    Industries

  • 17
    (47 Reviews) 4.8

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    4.7

    Would Recommend

    4.9
    $5,000+
    1,000 - 9,999 employees
    Lexington, KY
    Helpware CX is a Customer Service Outsourcing company headquartered in Lexington, Kentucky; Kyiv, Ukraine; Taguig, Philippines and Guadalajara, Mexico. The large company was established in 2015. Their services include Customer Service Outsourcing, Call Center Services, Back Office Outsourcing, Data Annotation Services, and more.
    Read More

    Clients

    PureCars Microsoft Google HealthComp

    Industries

  • 18
    (34 Reviews) 4.7

    Timeliness

    4.2

    Service Excellence

    4.1

    Value

    4.0

    Would Recommend

    4.8
    $1,000+
    250 - 999 employees
    Orlando, FL
    XACT, an answering service company, was founded in 1996. Their midsize team is in Orlando, Florida and Unity, Maine. The agency specializes in Call Center Services, Customer Service Outsourcing, Back Office Outsourcing, and Staffing.
    Read More

    Clients

    Culinary Institute of America

    Industries

  • 19
    (28 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    4.9

    Would Recommend

    5.0
    $25,000+
    1,000 - 9,999 employees
    Ogden, UT
    Large 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

    Clients

    Progress Software

    Industries

  • 20
    (18 Reviews) 4.8

    Timeliness

    4.9

    Service Excellence

    4.8

    Value

    4.8

    Would Recommend

    4.8
    $1,000+
    50 - 249 employees
    Chicago, IL
    Hit 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

    Clients

    CleanWel Solutions

    Industries

  • 21
    (5 Reviews) 4.8

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    4.0

    Would Recommend

    4.8
    $10,000+
    250 - 999 employees
    Simi Valley, CA
    Beyond Codes Inc. Is a Sales Outsourcing company launched in 2008. They are located in Simi Valley, California; Hammersmith, England; Burnaby, Canada and Panchkula, India and have a midsize team. Their services include Sales Outsourcing, Demand Generation Marketing, Account-Based Marketing, and Email Marketing.
    Read More

    Clients

    EXL

    Industries

  • 22
    (23 Reviews) 4.8

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    4.7

    Would Recommend

    4.7
    $5,000+
    50 - 249 employees
    Denver, CO
    GenSales, a Sales Outsourcing company, was established in 2002. The midsize team focuses on Sales Outsourcing and Email Marketing. The company is located in Denver, Colorado.
    Read More

    Clients

    TUDI Mechancial Systems

    Industries

  • 23
    (11 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    250 - 999 employees
    Doylestown, PA
    HelpSquad, a Back Office Outsourcing company, is located in Doylestown, Pennsylvania. They offer Back Office Outsourcing, Call Center Services, and Customer Service Outsourcing and were founded in 2015.
    Read More

    Clients

    Slinger Bag

    Industries

  • 24
    (28 Reviews) 5.0

    Timeliness

    4.9

    Service Excellence

    5.0

    Value

    4.7

    Would Recommend

    5.0
    $1,000+
    1,000 - 9,999 employees
    Chicago, IL
    Established 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

  • 25
    (49 Reviews) 5.0

    Timeliness

    4.9

    Service Excellence

    5.0

    Value

    4.9

    Would Recommend

    5.0
    $1,000+
    10 - 49 employees
    Norristown, PA
    Answering service and Sales Outsourcing company Superhuman Prospecting is based in Norristown, Pennsylvania. The small team specializes in Call Center Services and Sales Outsourcing. The firm was founded in 2017.
    Read More

    Industries

  • 26
    (12 Reviews) 4.8

    Timeliness

    4.8

    Service Excellence

    4.9

    Value

    4.6

    Would Recommend

    4.9
    $1,000+
    50 - 249 employees
    Scottsdale, AZ

    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.

    Read More

    Clients

    Dow Jones

    Industries

  • 27
    (11 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    4.8

    Value

    4.9

    Would Recommend

    5.0
    $1,000+
    10 - 49 employees
    Plano, TX
    Located in Plano, Texas, Constructur is a marketing strategy company. Founded in 2021, the small team provides marketing strategy, call center services, back office outsourcing, and sales outsourcing.
    Read More

    Industries

  • 28
    (10 Reviews) 5.0

    Timeliness

    4.9

    Service Excellence

    4.9

    Value

    4.9

    Would Recommend

    5.0
    $5,000+
    50 - 249 employees
    Austin, TX

    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.

    Read More

    Clients

    Fonality

    Industries

  • 29
    (6 Reviews) 4.6

    Timeliness

    4.8

    Service Excellence

    4.5

    Value

    4.1

    Would Recommend

    4.7
    $1,000+
    250 - 999 employees
    Nashville, TN

    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.

    Read More

    Clients

    Alibaba

    Industries

  • 30
    (16 Reviews) 4.3

    Timeliness

    1.9

    Service Excellence

    1.9

    Value

    1.8

    Would Recommend

    4.4
    Undisclosed
    1,000 - 9,999 employees
    Garden City, NY

    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

    Read More

    Clients

    Century21

    Industries

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