Top 100 Third Party Verification Companies

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Top 100 Third Party Verification Companies

The Best of December 2025

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

  • 91
    (23 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    Undisclosed
    1,000 - 9,999 employees
    Plantation, FL
    MiXBS is a Business Consulting company launched in 2019. Headquartered in Plantation, Florida and Dénia, Spain, their large team focuses on Business Consulting, Call Center Services, Customer Service Outsourcing, and Market Research.
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    Industries

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  • 92
    (53 Reviews) 4.9

    Timeliness

    4.9

    Service Excellence

    4.9

    Value

    4.9

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Kolkata, India
    Task Virtual is a SEO company. The midsize Kolkata, India-based firm was founded in 2016. Their services include Search Engine Optimization, Back Office Outsourcing, Social Media Marketing, Content Marketing, and more.
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    Industries

  • 93
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    250 - 999 employees
    Johannesburg, South Africa
    Launched in 2008, DSG is a Customer Service Outsourcing company. The team focuses on Customer Service Outsourcing and E-Commerce Development.
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    Industries

  • 94
    (3 Reviews) 4.7

    Timeliness

    5.0

    Service Excellence

    4.8

    Value

    4.5

    Would Recommend

    4.8
    $1,000+
    1,000 - 9,999 employees
    Montréal, Canada
    Call center company ContactPoint 360 was founded in 2007. Their large team is in Pharr, Texas; Montréal, Canada; Bogotá, Colombia and Cairo, Egypt. ContactPoint 360 offers Call Center Services, Customer Service Outsourcing, Back Office Outsourcing, and Sales Outsourcing.
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    Industries

  • 95
    (7 Reviews) 4.9

    Timeliness

    4.9

    Service Excellence

    4.8

    Value

    4.9

    Would Recommend

    5.0
    $10,000+
    250 - 999 employees
    Las Vegas, NV
    LiveSalesman is a midsize non-voice bpo/back office services and answering service company established in 2003. Their services include non-voice bpo/back office services and voice services. The firm is located in Las Vegas, Nevada and Noida, India.
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    Industries

  • 96
    (2 Reviews) 4.5

    Timeliness

    4.5

    Service Excellence

    4.5

    Value

    4.5

    Would Recommend

    4.5
    $1,000+
    10 - 49 employees
    Sofia, Bulgaria

    Established in 2005, Infosource is a non-voice bpo/back office services company. Their small team is located in Sofia, Bulgaria and focuses on non-voice bpo/back office services and HR services.

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    Industries

  • 97
    (2 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Arlington, VA

    Founded in 2019, Salaria Sales Solutions is a digital strategy company. The midsize team offers digital strategy, content marketing, call center services, and customer service outsourcing. The company is located in Arlington, Virginia.

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    Industries

  • 98
    (5 Reviews) 4.7

    Timeliness

    4.8

    Service Excellence

    4.6

    Value

    4.5

    Would Recommend

    4.7
    Undisclosed
    50 - 249 employees
    Marina del Rey, CA

    Xync Inc. Is a sales outsourcing company. The Marina del Rey, California-based company was founded in 2017. The midsize team offers sales outsourcing, call center services, back office outsourcing, and customer service outsourcing.

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    Industries

  • 99
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $5,000+
    10 - 49 employees
    Toronto, Canada

    Seologist is an SEO company based in Toronto. The company, founded in 2003, has a team of less than 20 who provide SEO services, as well as web development, email and social media marketing, voice services, and others to business, financial, and consumer service companies. 

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    Clients

    NOVAJET

    Industries

  • 100
    (2 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    4.8
    $1,000+
    10 - 49 employees
    Teliqon.io is a call center company established in 2022. They are headquartered in Tallinn, Estonia and have a small team. Their services include Call Center Services, cloud consulting & SI, and unified communications consulting & SI.
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    Industries

  • 101
    (14 Reviews) 5.0

    Timeliness

    4.9

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Great Neck Plaza, NY
    The Hour - Back Office and Virtual Assistant Services is a Back Office Outsourcing company. They offer Back Office Outsourcing, Customer Service Outsourcing, Call Center Services, Finance & Accounting Outsourcing (FAO), and more and were founded in 2015. Their midsize team is Great Neck Plaza, New York-based.
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    Industries

  • 102
    (4 Reviews) 5.0

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    5.0

    Would Recommend

    5.0
    $5,000+
    50 - 249 employees
    DigiReps.co is a Sales Outsourcing company in New York, New York. The midsize team specializes in Sales Outsourcing, Call Center Services, and Business Consulting and was founded in 2021.
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    Clients

    Technovates LLC

    Industries

  • 103
    (10 Reviews) 4.9

    Timeliness

    4.9

    Service Excellence

    4.8

    Value

    5.0

    Would Recommend

    4.9
    $1,000+
    10 - 49 employees
    Coimbatore, India

    Stepping EDGE is a marketing firm founded in 2018 with fewer than 10 members. Based in Coimbatore, India, they are experts in social media marketing, mobile and app marketing, and PPC ads for small businesses in industries such as e-commerce, gaming, and arts.

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    Clients

    Caitec

    Industries

  • 104
    (6 Reviews) 4.8

    Timeliness

    4.8

    Service Excellence

    4.7

    Value

    4.8

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Cenit Inc, a Customer Service Outsourcing company, is headquartered in کراچی, Pakistan and San Francisco, California. The midsize agency was established in 2014. Their services include Customer Service Outsourcing, IT managed services, Call Center Services, Back Office Outsourcing, and more.
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    Clients

    TVape

    Industries

  • 105
    (3 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Cape Town, South Africa
    The Agentsy BPO is a Cape Town, South Africa-based customer service outsourcing company. The midsize team offers customer service outsourcing, sales outsourcing, and finance & accounting outsourcing (FAO) and was launched in 2018.
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    Industries

  • 106
    (4 Reviews) 5.0

    Timeliness

    4.9

    Service Excellence

    5.0

    Value

    4.9

    Would Recommend

    5.0
    $1,000+
    10 - 49 employees
    Mumbai, India
    Captico Consultancy is a small website development company located in Mumbai, India. Established in 2017, the team focuses on web development, mobile app development, and call center services.
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    Industries

  • 107
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    4.5

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Ciudad de Guatemala, Guatemala

    Phone answering service Infinity Center BPO is based in Houston, Texas and Ciudad de Guatemala, Guatemala. The firm provides call center services and customer service outsourcing and is midsize.The firm was established in 2014.

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  • 108
    (2 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Founded in 2021, SWITCH 360 is an answering service company. Their midsize team is located in Los Angeles, California. Their services include call center services, customer service outsourcing, digital strategy, search engine optimization, and more.
    Read More

    Industries

  • 109
    (1 Reviews) 2.0

    Timeliness

    0.0

    Service Excellence

    0.0

    Value

    0.0

    Would Recommend

    2.5
    Undisclosed
    10 - 49 employees
    Erie, PA

    PCMSI is a professional telecommunications agency based in Erie, Pa. The company was founded in 1962 and employs a team of just under 30. They provide a range of voice services for clients in a variety of industries. 

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    Industries

  • 110
    (9 Reviews) 4.2

    Timeliness

    1.1

    Service Excellence

    0.9

    Value

    0.7

    Would Recommend

    4.1
    Undisclosed
    50 - 249 employees
    Phoenix, AZ
    ReceptionHQ is a Phoenix, Arizona-based answering service. The midsize company was launched in 2007. Their team focuses on Call Center Services, Customer Service Outsourcing, and Back Office Outsourcing.
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    Clients

    FlatFeeLandlord

    Industries

  • 111
    (5 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Kolkata, India
    Back office outsourcing company RFS Business Solutions Pvt Ltd is located in Kolkata, India. The agency specializes in back office outsourcing, customer service outsourcing, and call center services and is midsize.The agency was founded in 2019.
    Read More
  • 112
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    Undisclosed
    10 - 49 employees
    Irvine, CA

    Helpt is a Irvine, California-based customer service outsourcing company. The small firm was launched in 2022. Their team offers customer service outsourcing, call center services, and IT staff augmentation.

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  • 113
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    Undisclosed
    10 - 49 employees
    Cairo, Egypt
    Based in Cairo, Egypt, MARS EC is a telephone answering service. The small team offers Call Center Services, Customer Service Outsourcing, and Sales Outsourcing and was established in 2021.
    Read More

    Industries

  • 114
    (3 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    4.8

    Value

    4.7

    Would Recommend

    5.0
    $5,000+
    10 - 49 employees
    Miami, FL

    Located in Miami, Florida and Managua, Nicaragua, ALPHA BPO LLC is a customer service outsourcing company. The small team specializes in customer service outsourcing, call center services, IT managed services, web development, and more. The firm was founded in 2019.

    Read More

    Industries

  • 115
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Sheridan, WY
    Servixer, LLC is a transcription company established in 2018. The midsize Sheridan, Wyoming-based team provides transcription, social media marketing, voice services, digital strategy, and more.
    Read More

    Industries

  • 116
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    Undisclosed
    2 - 9 employees
    Miami, FL
    Virtual Receptionist Pro is a call center service. They are based in Miami, Florida and have a small team. The company offers call center services.
    Read More
  • 117
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    250 - 999 employees
    SignMore, a call center company, was launched in 2022. The midsize team specializes in Call Center Services and Sales Outsourcing.
    Read More

    Industries

  • 118
    (2 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $10,000+
    50 - 249 employees
    Tijuana, Mexico

    CallTree BPO is a midsize call center company. Founded in 2020, the team offers call center services, back office outsourcing, customer service outsourcing, sales outsourcing, and more. The company is in Tijuana, Mexico.

    Read More

    Industries

  • 119
    (48 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    San Diego, CA
    CallZent is a Market Research company launched in 2023. The company specializes in Market Research, Customer Service Outsourcing, Call Center Services, Custom Software Development, and more and has a midsize team.
    Read More

    Industries

  • 120
    (2 Reviews) 4.8

    Timeliness

    5.0

    Service Excellence

    4.8

    Value

    4.8

    Would Recommend

    4.8
    Undisclosed
    2 - 9 employees
    Business consulting company Jeremy Chen Sales was established in 2018. The agency specializes in business consulting, call center services, back office outsourcing, and sales outsourcing and has a small team.
    Read More
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