Top 100 Network Security Companies in California

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Top 100 Network Security Companies in California

The Best of June 2026

Looking for a top network security firm in California?

Network security is critical for businesses. Protecting sensitive data and preserving trust are top priorities. 

List of the Best California Network Security Providers

  • 121
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    Freelancer employees
    El Monte, CA
    IDOTECH is an IT managed services company. Founded in 2012, the team focuses on IT managed services and Web Development. The agency is in El Monte, California.
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  • 122
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    10 - 49 employees
    San Jose, CA
    A-CX is a Cybersecurity company based in San Jose, California and Vancouver, Canada. Launched in 2020, the team offers Cybersecurity and Custom Software Development.
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    Industries

  • 123
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    250 - 999 employees
    San Mateo, CA
    Midsize Cybersecurity company Keyfactor , is headquartered in Independence, Ohio and Solna, Sweden. The team offers Cybersecurity and IoT development.
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  • 124
    (9 Reviews) 4.8

    Timeliness

    4.9

    Service Excellence

    4.8

    Value

    4.6

    Would Recommend

    4.7
    $5,000+
    250 - 999 employees
    Pleasanton, CA
    Net at Work LLC is an IT managed services company. Their midsize team is based in New York, New York; Hialeah, Florida; Totowa, New Jersey and North Attleborough, Massachusetts. The company offers IT managed services and Cybersecurity.
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    Industries

  • 125
    (1 Reviews) 4.0

    Timeliness

    4.0

    Service Excellence

    4.0

    Value

    4.0

    Would Recommend

    5.0
    $10,000+
    1,000 - 9,999 employees
    San Ramon, CA
    Neurealm is a Cybersecurity company. Their large team is headquartered in Princeton, New Jersey; San Ramon, California; Santa Clara, California and Chennai, India. The firm provides Cybersecurity, Custom Software Development, Artificial Intelligence, Generative AI, and more. The firm was launched in 1998.
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    Industries

  • 126
    (6 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    Undisclosed
    10 - 49 employees
    Los Angeles, CA

    IT managed services company Los Angeles IT was founded in 2016. The firm provides IT managed services, Search Engine Optimization, BI & big data consulting & SI, cloud consulting & SI, and more and has a small team. The firm is in Los Angeles, California; Santa Monica, California; Los Angeles, California and Los Angeles, California.

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    Industries

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