Top 100 Third Party Verification Companies

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Top 100 Third Party Verification Companies

The Best of April 2026

Looking for a top third party verification service?

This guide contains companies from all over the globe that excel in third-party verification. Their services vary from non-voice BPO/back-office services to voice services to transcription and they provide a multitude of other services your company may need. 

Jump to Most Reviewed Companies

List of the Best Third Party Verification Agencies

  • 811
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Mandaluyong, Philippines
    PrimeOutsourcing Inc., a small call center company, is in Mandaluyong, Philippines. Their services include Call Center Services and Back Office Outsourcing.
    Read More
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  • 812
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Dublin , Ireland
    Telemark is an answering service company. Founded in 1993, the firm is based in Dublin , Ireland. Their services include Call Center Services and Corporate Training & Coaching.
    Read More
  • 813
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Tijuana, Mexico
    Call center Universal Contact Centers is headquartered in Tijuana, Mexico and Glendale, California. They focus on Call Center Services and Finance & Accounting Outsourcing (FAO).
    Read More
  • 814
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Berlin, Germany
    Snubes, a call center service, offers Call Center Services and Customer Service Outsourcing. The company is in Berlin, Germany and Hannover, Germany.
    Read More
  • 815
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    ঢাকা, Bangladesh
    NIMBUS TEK is an answering service. The ঢাকা, Bangladesh-based team focuses on Call Center Services and Back Office Outsourcing.
    Read More
  • 816
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Berlin, VT
    Established in 1993, All Ways Answering is a midsize answering service company. Their services include Call Center Services and Back Office Outsourcing.
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  • 817
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Ciudad Obregón, Mexico
    Colloquium BPO is a call center. Their midsize team is headquartered in Tucson, Arizona and Ciudad Obregón, Mexico. Their services include Call Center Services and Back Office Outsourcing.
    Read More
  • 818
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Lima, Peru
    Smartech BPO is a telephone answering service. They are headquartered in Lima, Peru and have midsize team. Their team provides Call Center Services and Back Office Outsourcing.
    Read More
  • 819
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Madhapur, India
    Answering service company Capri BPO Service was established in 2005. The firm focuses on Call Center Services and Back Office Outsourcing, and is midsize.
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  • 820
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Hyderabad, India
    4Bitt is a Cybersecurity company. Their midsize team is located in Hyderabad, India. Their team offers Cybersecurity and IT managed services.
    Read More
  • 821
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Hyderabad, India
    Novatta Technologies is a midsize Hyderabad, India-based software development company. Their services include Custom Software Development and Web Development.
    Read More

    Industries

  • 822
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Ankara, Türkiye
    Sistaş is a midsize custom software development company launched in 1991. Their team focuses on Custom Software Development and Call Center Services.
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  • 823
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Wien, Austria
    Launched in 2019, AxFina Holding is a call center. The midsize team provides Call Center Services and Back Office Outsourcing.
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  • 824
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    Freelancer employees
    Cape Town, South Africa
    Lamqora, a Staffing company, was established in 2025. The firm provides Staffing and Recruiting.
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    Industries

  • 825
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    50 - 249 employees
    San Marcos, CA
    IT managed services company Tri-Community Answering Service was launched in 1968. The midsize team offers IT managed services and Call Center Services.
    Read More
  • 826
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Dubai, United Arab Emirates
    Calltronics, an IT managed services company, is based in Dubai, United Arab Emirates. They provide IT managed services and IT staff augmentation.
    Read More
  • 827
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Telephone Care Company is a midsize Saudi Arabia-based custom software development company. Their services include Custom Software Development and Call Center Services.
    Read More
  • 828
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Dhaka, Bangladesh
    Virgo Contact Center Services Ltd is a Dhaka, Bangladesh-based social media marketing agency. Launched in 2009, the team focuses on Social Media Marketing and Email Marketing.
    Read More
  • 829
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Dublin, Ireland
    OceanConnects is a midsize Email Marketing company founded in 2003. Their team provides Email Marketing and Call Center Services.
    Read More
  • 830
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Athens, GA
    Concierge Contact Center is a call center service. Their team is located in Athens, Georgia and specializes in Call Center Services and Back Office Outsourcing.
    Read More
  • 831
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Los Olivos, Peru
    Overtrad BPO is a social media marketing firm. Headquartered in Los Olivos, Peru, their midsize team offers Social Media Marketing and Call Center Services. The agency was launched in 2010.
    Read More
  • 832
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Ross on Wye, England
    Dawleys is a Ross on Wye, England-based answering service company. Their services include Call Center Services and Back Office Outsourcing.
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  • 833
    (12 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    4.9

    Would Recommend

    4.9
    $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.

    Read More

    Clients

    KlimaTek

    Industries

  • 834
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Oklahoma City, OK
    Rattan Consulting, an IT strategy consulting company, specializes in IT strategy consulting and cloud consulting & SI. The company is based in Oklahoma City, Oklahoma.
    Read More
  • 835
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Oklahoma City, OK
    IT strategy consulting company Vudu Consulting offers IT strategy consulting and IT managed services. They were established in 2008.
    Read More
  • 836
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $5,000+
    10 - 49 employees

    Call center service Call Center Solutions Africa(CCSA) is in Nairobi, Kenya. The small company was launched in 2022. Their team provides Call Center Services, Sales Outsourcing, Customer Service Outsourcing, Back Office Outsourcing, and more.

    Read More

    Industries

  • 837
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    New Hyde Park, NY
    Acena, a call center, provide Call Center Services and Back Office Outsourcing. They were founded in 1998.
    Read More
  • 838
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Brooklyn, NY
    AnswerOne is a call center company. Located in Brooklyn, New York, the team specializes in Call Center Services and Back Office Outsourcing.
    Read More
  • 839
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Omaha, NE
    North End Teleservices LLC, a Market Research company, was launched in 2015. In Omaha, Nebraska, the team specializes in Market Research and Call Center Services.
    Read More
  • 840
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Manaus, Brazil
    POLO Telecom, a small phone answering service, is based in Manaus, Brazil. Their services include Call Center Services and Back Office Outsourcing.
    Read More
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