Top 100 Third Party Verification Companies

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Top 100 Third Party Verification Companies

The Best of February 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

  • 61
    (3 Reviews) 5.0

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    4.8

    Would Recommend

    5.0
    $5,000+
    250 - 999 employees
    Montego Bay, Jamaica

    Answering service company Genesis Support Solution LTD was established in 2020. The midsize team focuses on call center services, customer service outsourcing, HR services, translation, and more. The agency is in Montego Bay, Jamaica and Miami, Florida.

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    Industries

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  • 62
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Karachi, Pakistan
    AtDesk247, an answering service, is located in Karachi, Pakistan. The midsize agency was launched in 2020. Their team offers Call Center Services, Customer Service Outsourcing, and Back Office Outsourcing.
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    Clients

    Designer Sofas 4U

    Industries

  • 63
    (12 Reviews) 4.9

    Timeliness

    4.7

    Service Excellence

    4.8

    Value

    4.9

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Gurugram, India
    Located in Gurugram, India and Gurugram, India, Tech Fi Technologies is a call center service. The midsize team offers Call Center Services, Customer Service Outsourcing, Content Moderation Services, Sales Outsourcing, and more. The firm was established in 2016.
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    Industries

  • 64
    (47 Reviews) 5.0

    Timeliness

    4.9

    Service Excellence

    5.0

    Value

    4.9

    Would Recommend

    4.9
    $5,000+
    1,000 - 9,999 employees
    Kyiv, Ukraine
    EverHelp is a Customer Service Outsourcing company. Founded in 2021, the large firm is based in Warszawa, Poland and Kyiv, Ukraine. Their services include Customer Service Outsourcing, Call Center Services, Back Office Outsourcing, and Sales Outsourcing.
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    Industries

  • 65
    (19 Reviews) 4.5

    Timeliness

    4.4

    Service Excellence

    4.5

    Value

    4.4

    Would Recommend

    4.5
    $1,000+
    50 - 249 employees
    Omaha, NE

    Complete Call Solutions is a voice services outsourcing firm in Omaha, Nebraska. Founded in 2008, they have about 74 employees that serve clients in the retail, hospitality, and financial services sectors. 

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    Industries

  • 66
    (11 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    250 - 999 employees
    Belize City, Belize
    Protel BPO is a phone answering service. They are in Belize City, Belize and Los Angeles, California and have a midsize team. The firm offers Call Center Services, Customer Service Outsourcing, and Back Office Outsourcing.
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    Industries

  • 67
    (5 Reviews) 5.0

    Timeliness

    4.8

    Service Excellence

    5.0

    Value

    4.9

    Would Recommend

    5.0
    Undisclosed
    250 - 999 employees
    Beograd, Serbia
    Silver Bell Group is a social media marketing agency based in Beograd, Serbia. The midsize company was launched in 2014. Their services include social media marketing, blockchain, customer service outsourcing, commercial property management, and more.
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    Industries

  • 68
    (4 Reviews) 4.8

    Timeliness

    4.6

    Service Excellence

    4.9

    Value

    4.5

    Would Recommend

    4.8
    Undisclosed
    50 - 249 employees
    Spring, TX

    Westpark Communications is a business process outsourcing firm based in Houston, Texas. Established in 1968, the team of about 40 employees primarily provides voice services and non-voice BPO and back office services for the manufacturing, retail, and business services industries.

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    Clients

    Aries Worldwide Logistics

    Industries

  • 69
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $5,000+
    50 - 249 employees
    Kingston, Jamaica
    VLBPO LLC, a phone answering service, was established in 2015. The company focuses on call center services, recruiting, hr outsourcing, and hr consulting and has a midsize team.
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    Clients

    eCommerce, Law Firms, Fintech, Saas, Health

    Industries

  • 70
    (3 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    Undisclosed
    10 - 49 employees
    Karachi, Pakistan
    Munzai Solutions, a Sales Outsourcing company, was launched in 2022. The agency provides Sales Outsourcing, Call Center Services, CRM consulting and SI, and Customer Service Outsourcing and has a small team.
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    Industries

  • 71
    (4 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Fort Lauderdale, FL
    Headquartered in Fort Lauderdale, Florida, Evateck is a midsize customer service outsourcing company. They offer customer service outsourcing, call center services, IT managed services, IT staff augmentation, and more and were launched in 2024.
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    Industries

  • 72
    (3 Reviews) 5.0

    Timeliness

    4.7

    Service Excellence

    5.0

    Value

    4.8

    Would Recommend

    5.0
    Undisclosed
    250 - 999 employees
    Gdańsk, Poland
    Aplitt sp. Z o.o. Is a Gdańsk, Poland-based software development company. The midsize team provides custom software development, web development, mobile app development, application testing, and more. The company was founded in 1995.
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    Industries

  • 73
    (3 Reviews) 4.7

    Timeliness

    4.7

    Service Excellence

    4.7

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    10 - 49 employees
    Baltimore, MD

    RemSource is a consulting and virtual support company located in Baltimore. RemSource was founded in 2009 and maintains a team of 7 that provides non-voice BPO/back office services, bookkeeping, voice services, and business consulting services for small businesses.

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    Industries

  • 74
    (2 Reviews) 4.3

    Timeliness

    4.5

    Service Excellence

    4.5

    Value

    4.0

    Would Recommend

    4.3
    $10,000+
    250 - 999 employees
    North Charleston, SC
    Launched in 1998, Sales Focus Inc. Is a Sales Outsourcing company. Their midsize team is in North Charleston, South Carolina. Their services include Sales Outsourcing, Call Center Services, Account-Based Marketing, and Recruiting.
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    Industries

  • 75
    (2 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    Undisclosed
    1,000 - 9,999 employees
    Birkenhead , England

    The Contact Company is an outsourcing firm based in Birkenhead, U.K. Founded in 2006, it has more than 250 employees who specialize in non-voice BPO/back office services and voice services. The team primarily partners with enterprise and midmarket clients in the business services, financial services, retail, telecommunications, and e-commerce sectors.

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    Clients

    Plusnet

    Industries

  • 76
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    250 - 999 employees
    Baliuag, Philippines

    Call center service Telework PH is headquartered in Baliuag, Philippines. The midsize team provides Call Center Services, Back Office Outsourcing, Customer Service Outsourcing, and Data Annotation Services and was launched in 2013.

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    Industries

  • 77
    (6 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    Undisclosed
    10 - 49 employees
    Phoenix, AZ
    Veza Reception is a Phoenix, Arizona-based phone answering service. The small firm was established in 2023. Their services include Call Center Services and Customer Service Outsourcing.
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    Industries

  • 78
    (3 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $5,000+
    250 - 999 employees
    Established in 2021, Clevertone is a call center company and Back Office Outsourcing company. They are in Beaumont, California; Fort Lauderdale, Florida; Miami, Florida and Los Angeles, California and have a midsize team. Their services include Call Center Services and Back Office Outsourcing.
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    Industries

  • 79
    (0 Reviews)

    Not yet reviewed.

    $50,000+
    1,000 - 9,999 employees
    San Diego, CA
    Redial BPO Call Center is an answering service established in 2017. The agency offers Call Center Services and Customer Service Outsourcing.
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    Clients

    Soaren Management Home Run

    Industries

  • 80
    (16 Reviews) 4.4

    Timeliness

    0.9

    Service Excellence

    0.9

    Value

    0.8

    Would Recommend

    4.4
    Undisclosed
    50 - 249 employees
    Charleston, SC

    Call Experts is a contact center outsourcing firm headquartered in Charleston, South Carolina. Founded in 1982, they now have over 200 employees distributed between three call centers on the US east coast. Call Experts provides expert services for voice support, including virtual receptionist services, inbound appointments, and customer support.

    Read More

    Clients

    Charleston Water System

    Industries

  • 81
    (6 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    Undisclosed
    50 - 249 employees
    Dhaka, Bangladesh
    Launched in 2018, Call Point Business Solutions Ltd. Is an answering service. Their midsize team is based in Dhaka, Bangladesh and offers Call Center Services, Back Office Outsourcing, Customer Service Outsourcing, Sales Outsourcing, and more.
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    Clients

    Commercial Cleaning Leads Generation

    Industries

  • 82
    (71 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Philadelphia, PA
    Launched in 2020, Top Virtual Assistant is a Back Office Outsourcing company. The midsize team provides Back Office Outsourcing, Call Center Services, Content Writing Services, and Email Marketing. The company is headquartered in Brooklyn, New York; Philadelphia, Pennsylvania; Toronto, Canada and Berlin, Germany.
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    Clients

    Veridex Legal Solutions ShopEase Provida Family Medicine Cyvanta Security Tripled

    Industries

  • 83
    (21 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    4.9

    Value

    4.9

    Would Recommend

    5.0
    $10,000+
    1,000 - 9,999 employees
    Wrocław, Poland
    CCIG Group is a telephone answering service launched in 2002. The large Wrocław, Poland-based team provides Call Center Services, Customer Service Outsourcing, and Back Office Outsourcing.
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    Industries

  • 84
    (2 Reviews) 4.5

    Timeliness

    4.5

    Service Excellence

    4.5

    Value

    4.8

    Would Recommend

    4.8
    $1,000+
    250 - 999 employees
    Princeton, NJ
    Express Virtual Assistant is a call center and back office outsourcing company established in 2004. Their midsize team is in Princeton, New Jersey. Their services include call center services and back office outsourcing.
    Read More

    Industries

  • 85
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    Barranquilla, Colombia

    Empire Global Solution is a midsize telephone answering service. In PARLIN, New Jersey and Barranquilla, Colombia, the agency was founded in 2021. Their services include call center services, back office outsourcing, sales outsourcing, customer service outsourcing, and more.

    Read More

    Industries

  • 86
    (3 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    250 - 999 employees
    Lagos, Nigeria

    DelonApps is an IT staff augmentation company. The small Lagos, Nigeria-based company was founded in 2018. Their services include IT staff augmentation, voice services, HR services, non-voice bpo/back office services, and more.

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    Clients

    First Bank Access Bank Wema Bank Sterling Bank

    Industries

  • 87
    (3 Reviews) 4.7

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    10 - 49 employees
    Launched in 2016, Sunlightsol Technologies is a call center. Their small team is headquartered in Delhi, India and Delhi, India. Their services include Call Center Services, Web Development, Mobile App Development, Social Media Marketing, and more.
    Read More

    Industries

  • 88
    (23 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $10,000+
    250 - 999 employees
    Launched in 2024, Marke.tel is a midsize Back Office Outsourcing company located in Manila, Philippines. Their services include Back Office Outsourcing, Customer Service Outsourcing, and Call Center Services.
    Read More
  • 89
    (3 Reviews) 4.8

    Timeliness

    4.8

    Service Excellence

    4.7

    Value

    4.5

    Would Recommend

    4.8
    $1,000+
    250 - 999 employees
    Noida, India

    A1 Call Center is a CISCO-based outsourcing call center in Noida, India. Founded in 2009, the company has a team of 6 that specialize in back office and call center services. They primarily work with clients in the consumer products, media, and education industries. 

    Read More

    Clients

    BetterU

    Industries

  • 90
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    4.5

    Would Recommend

    4.5
    $1,000+
    10 - 49 employees

    VoiceStamps is a professional IVR hosting and design service provider based in Richardson, Texas. Founded in 1999, their now 2 person team specializes in voice services and transcription. VoiceStamps works with a variety of industries including business & financial services and healthcare.

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    Industries

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