Top 70 Penetration Testing Companies in San Francisco

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Top 70 Penetration Testing Companies in San Francisco

The Best of December 2025

Looking for a top penetration testing company in San Francisco?

Having vulnerable security poses a threat to your organization. In an age where data has become some of the most important assets that your company will have, improving security measures is always a must. 

List of the Best San Francisco Penetration Testing Services

  • 61
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Cupertino, CA
    Step Ahead Solutions, Inc. Is a Cybersecurity company. Launched in 2006, the company is headquartered in Cupertino, California. Their services include Cybersecurity and BI & big data consulting & SI.
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  • 62
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Santa Clara, CA
    InfoSecurity Compliance Corp is a Cybersecurity company. Launched in 2007, their team provides Cybersecurity and HR Consulting.
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  • 63
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    San Jose, CA
    Foresight MSP is an IT strategy consulting company launched in 2000. The agency offers IT strategy consulting and Cybersecurity.
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    Industries

  • 64
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Campbell, CA
    Heroic Technologies, an IT managed services company, was founded in 2011. The firm offers IT managed services and Cybersecurity.
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    Industries

  • 65
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    San Jose, CA
    GuardNet, Inc., a small Cybersecurity and IT managed services company, is headquartered in San Jose, California. The team offers Cybersecurity and IT managed services.
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  • 66
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    250 - 999 employees
    Los Gatos, CA
    CloudDev is an IT strategy consulting company. The Los Gatos, California-based team specializes in IT strategy consulting and cloud consulting & SI.
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    Industries

  • 67
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Milpitas, CA
    Cygne Noir Cyber, LLC, a Cybersecurity company, was established in 2023. The team specializes in Cybersecurity and IT managed services.
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    Industries

  • 68
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    2 - 9 employees
    Menlo Park, CA
    Headquartered in San Jose, California and Menlo Park, California, Bay Networks Inc. Is an IT managed services company. They offer IT managed services and Cybersecurity and were established in 2008.
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  • 69
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    San Ramon, CA
    AccessQuint LLC is a Cybersecurity and IT managed services company. Their team is in Wilmington, Delaware and Pleasanton, California and offers Cybersecurity and IT managed services.
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