Top 100 Call Center Services

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Top 100 Call Center Services

The Best of December 2025
Outsourced call center services refer to handling incoming and outgoing calls on behalf of businesses to support functions such as customer service, lead generation, and appointment setting. Call center services are crucial to ensuring customers have a positive experience with their business before, during, and after purchasing. 
Jump to Most Reviewed Companies

List of the Best Voice Services Providers on the Market

  • 1021
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    1,000 - 9,999 employees
    Ogden, UT
    MarketStar 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.
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    Industries

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  • 1022
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    1,000 - 9,999 employees
    Back Office Support Services is a large phone answering service launched in 2002. Their services include Call Center Services and Web Development.
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    Industries

  • 1023
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Terrebonne, Canada
    Founded in 2007, VoIP.ms is an unified communications consulting & SI and answering service company. The midsize team specializes in unified communications consulting & SI and Call Center Services.
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    Clients

    cPanel
  • 1024
    (0 Reviews)

    Not yet reviewed.

    $100,000+
    1,000 - 9,999 employees
    San Diego, CA
    Call Center Services International, a telephone answering service, is based in San Diego, California and Tijuana, Mexico. They focus on Call Center Services and Customer Service Outsourcing.
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    Industries

  • 1025
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    1,000 - 9,999 employees
    Ha Noi, Vietnam
    Customer 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.
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    Clients

    Uber

    Industries

  • 1026
    (1 Reviews) 4.5

    Timeliness

    5.0

    Service Excellence

    4.5

    Value

    4.5

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Hefei Shi, China
    Hefei Wisfly Information Technology Co., Ltd. Is an answering service established in 2007. The midsize Hefei Shi, China-based team specializes in call center services, IT managed services, custom software development, and customer service outsourcing.
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    Industries

  • 1027
    (2 Reviews) 3.8

    Timeliness

    4.5

    Service Excellence

    4.0

    Value

    3.8

    Would Recommend

    4.0
    $1,000+
    50 - 249 employees
    Sheridan, WY
    Primary BPO, a back office outsourcing company, was launched in 2023. They are located in Rigby, Idaho and have a midsize team. Their services include back office outsourcing, call center services, transcription, and recruitment process outsourcing.
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    Industries

  • 1028
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    50 - 249 employees
    București, Romania
    World Performance Group Srl is a call center company. They were established in 2012 and provide Call Center Services and Customer Service Outsourcing.
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    Industries

  • 1029
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    50 - 249 employees
    Taguig, Philippines
    Sales Outsourcing company LaQuest Inc is located in Taguig, Philippines and New Delhi, India. The team focuses on Sales Outsourcing and Back Office Outsourcing.
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    Industries

  • 1030
    (6 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    4.9

    Would Recommend

    5.0
    $1,000+
    2 - 9 employees
    Leadsrep is a branding firm in Casper, Wyoming. The small team focuses on branding, direct marketing, public relations, marketing strategy, and more. The company was launched in 2023.
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  • 1031
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    Navi Mumbai, India
    Sales Outsourcing company ClientsB2B offers Sales Outsourcing. They were founded in 2021.
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    Industries

  • 1032
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Itasca, IL
    LiveVoice is an answering service in Itasca, Illinois. Launched in 2016, the team offers Call Center Services and Sales Outsourcing.
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    Industries

  • 1033
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    1,000 - 9,999 employees
    Noida, India
    Insight Customer Call Solutions ltd. Is a Customer Service Outsourcing company. They were launched in 2004 and focus on Customer Service Outsourcing and Call Center Services.
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    Industries

  • 1034
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Lowestoft , England
    Established in 2016, Pocket Receptionist is a midsize Lowestoft , England-based call center. Their services include Call Center Services and Customer Service Outsourcing.
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  • 1035
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Rapid Phone Center is an answering service company founded in 2014. The team provides Call Center Services and Back Office Outsourcing and is headquartered in Los Angeles, California.
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  • 1036
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    Reno, NV
    Front Office Staff-Reno is a call center service. They are headquartered in Reno, Nevada and have small team. They provide Call Center Services and Sales Outsourcing.
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    Industries

  • 1037
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    Small Back Office Outsourcing and Sales Outsourcing company The Lead Vendor, is based in Bogura, Bangladesh and Miami, Florida. The team offers Back Office Outsourcing and Sales Outsourcing.
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    Industries

  • 1038
    (0 Reviews)

    Not yet reviewed.

    $50,000+
    1,000 - 9,999 employees
    Louisville, KY
    GlowTouch LLC is a large Back Office Outsourcing company. They focus on Back Office Outsourcing and Call Center Services and were established in 2002.
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  • 1039
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    1,000 - 9,999 employees
    Nacogdoches, TX
    In Nacogdoches, Texas and Lufkin, Texas, Etech is a phone answering service. Their services include Call Center Services and Customer Service Outsourcing.
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    Industries

  • 1040
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    1,000 - 9,999 employees
    Newmarket, Canada
    Large Customer Service Outsourcing company Bill Gosling Outsourcing, is in Newmarket, Canada and Glasgow , Scotland. The team offers Customer Service Outsourcing and Call Center Services.
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    Clients

    Canada's Best Managed Companies

    Industries

  • 1041
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    1,000 - 9,999 employees
    Dublin , Ireland
    Launched in 1973, Voxpro is a Back Office Outsourcing company. The team offers Back Office Outsourcing and Call Center Services.
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  • 1042
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    250 - 999 employees
    Waltham, MA
    MarketOne International is an Email Marketing company founded in 1998. Their services include Email Marketing and Call Center Services.
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  • 1043
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    50 - 249 employees
    Jaipur, India
    Sarv Webs Pvt. Ltd. Is a Jaipur, India-based call center service. They provide Call Center Services and Sales Outsourcing and were founded in 2011.
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    Industries

  • 1044
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    250 - 999 employees
    Los Angeles, CA
    Telephone answering service One Contact Center offers Call Center Services and Back Office Outsourcing. They are located in Los Angeles, California and Pasig, Philippines.
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    Industries

  • 1045
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    250 - 999 employees
    Gresham, OR
    AnswerNet is a call center. Headquartered in Gresham, Oregon, the agency provides Call Center Services and Back Office Outsourcing.
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  • 1046
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10,000+ employees
    Neuilly-sur-Seine, France
    Call center INTELCIA was founded in 2000. The firm specializes in Call Center Services and Back Office Outsourcing.
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  • 1047
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Multan, Pakistan
    ICT Innovation is an answering service launched in 2007. The firm focuses on Call Center Services.
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    Industries

  • 1048
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    Eatontown, NJ
    Sales Outsourcing company Commence Corporation was launched in 1990. Based in Eatontown, New Jersey, the team focuses on Sales Outsourcing and Email Marketing.
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  • 1049
    (0 Reviews)

    Not yet reviewed.

    $100,000+
    10,000+ employees
    Gurugram, India
    IGT Solutions is a telephone answering service. Founded in 1999, the company is headquartered in Gurugram, India. Their team provides Call Center Services and Back Office Outsourcing.
    Read More
  • 1050
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    250 - 999 employees
    Noida, India
    Acadecarft Inc is a Translation company launched in 2010. The team focuses on Translation and Call Center Services.
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    Industries

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