Top 100 IT Services Companies in California

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Top 100 IT Services Companies in California

The Best of April 2026

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For your company to grow, it is essential to choose the best technology. Hiring an innovative IT services provider is the easiest way to ensure that you are making the best use of technology, increasing sales, and staying one step ahead of the competition. 

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List of the Best California IT Companies

  • 631
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    10 - 49 employees
    Los Angeles, CA
    Headquartered in Los Angeles, California, Methodology IT is an IT managed services company. Founded in 1998, the team offers IT managed services and cloud consulting & SI.
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  • 632
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    San Diego, CA
    Small Cybersecurity company Tech Kahunas, is located in San Diego, California. Their services include Cybersecurity and IT managed services.
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    Industries

  • 633
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Mountain View, CA
    Launched in 2018, GSDSolutions LLC is an IT managed services company. The small team focuses on IT managed services and IT strategy consulting.
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  • 634
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Burbank, CA
    Based in Burbank, California and Woodbridge Township, New Jersey, Mentor Consulting Services is a small ERP consulting and SI company. The team offers ERP consulting and SI.
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  • 635
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    San Diego, CA
    In San Diego, California and Briarcliff Manor, New York, Platinum Cubed LLC is a CRM consulting and SI company. Their services include CRM consulting and SI and Business Consulting.
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  • 636
    (0 Reviews)

    Not yet reviewed.

    $25,000+
    2 - 9 employees
    San Diego, CA
    Founded in 2019, Enstal Technologies is a small San Diego, California-based Cybersecurity company. Their team offers Cybersecurity and IT strategy consulting.
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  • 637
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Anaheim, CA
    Based in Anaheim, California, IT Meristem is a small IT managed services company. The team specializes in IT managed services and IT strategy consulting.
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  • 638
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Irvine, CA
    Medical ITG, an IT strategy consulting and IT managed services company, was launched in 2015. Located in Irvine, California, the team offers IT strategy consulting and IT managed services.
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  • 639
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    Costa Mesa, CA
    EZ Tek Support is an IT managed services company. Founded in 2020, the team focuses on IT managed services and Cybersecurity. The company is based in Costa Mesa, California.
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  • 640
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Lake Elsinore, CA
    IT managed services company COM3 IT Solutions focuses on IT managed services and Cybersecurity. They were founded in 2010.
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  • 641
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Huntington Beach, CA
    Surf City Systems is an IT strategy consulting company. The Huntington Beach, California-based team offers IT strategy consulting and cloud consulting & SI.
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    Industries

  • 642
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Rancho Santa Margarita, CA
    IT managed services company Panoply It Solutions Inc is based in Rancho Santa Margarita, California. The team specializes in IT managed services and cloud consulting & SI.
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  • 643
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    San Diego, CA
    Impel Consulting is a CRM consulting and SI company. The team is headquartered in San Diego, California and Irvine, California, and their services include CRM consulting and SI.
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  • 644
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    Laguna Hills, CA
    ProTechtion IT is an IT managed services company. They are in Laguna Hills, California. Their team focuses on IT managed services and cloud consulting & SI.
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    Industries

  • 645
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    10 - 49 employees
    Los Angeles, CA
    North Blue Networks, a Cybersecurity company, was established in 1998. The team specializes in Cybersecurity and IT managed services.
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    Industries

  • 646
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Paso Robles, CA
    WTC Business Technology Services is a small IT managed services company. They focus on IT managed services and Cybersecurity and were established in 2012.
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    Industries

  • 647
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    San Diego, CA
    Established in 2008, SD IT Service is an IT strategy consulting and IT managed services company. The team provides IT strategy consulting and IT managed services.
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  • 648
    (0 Reviews)

    Not yet reviewed.

    $100,000+
    250 - 999 employees
    Irvine, CA
    IT strategy consulting company Prophecy Technologies focuses on IT strategy consulting and Cybersecurity. They are located in Irvine, California.
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  • 649
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Los Angeles, CA
    Yavda Analytics Private Limited is a business intelligence company. Founded in 2018, the team offers BI & big data consulting & SI.
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  • 650
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    10 - 49 employees
    Culver City, CA
    IT managed services company IT Training & Consulting, Inc (ITTC) was established in 1997. The company specializes in IT managed services and Cybersecurity.
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    Industries

  • 651
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    Los Angeles, CA
    Purple Shield Security is a Cybersecurity company. They are located in Los Angeles, California and have small team. They offer Cybersecurity and Compliance Consulting.
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  • 652
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Carlsbad, CA
    Cybersecurity company Intersectis is based in Carlsbad, California. Their services include Cybersecurity and Digital Strategy.
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  • 653
    (0 Reviews)

    Not yet reviewed.

    $5,000+
    10 - 49 employees
    Fremont, CA
    Prokopto is a small IT strategy consulting company headquartered in Fremont, California. The team offers IT strategy consulting and cloud consulting & SI.
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    Industries

  • 654
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    Walnut Creek, CA
    Rooted Software, an IT managed services company, was launched in 2021. The team provides IT managed services and Custom Software Development and is based in Walnut Creek, California.
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    Industries

  • 655
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    10 - 49 employees
    San Jose, CA
    White Box Data is a big data company. Launched in 2023, the team provides BI & big data consulting & SI and AI Consulting. The firm is based in San Jose, California and Charlotte, North Carolina.
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    Industries

  • 656
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Irvine, CA
    BB2 Technology Group is a small Irvine, California-based UX design company. The team focuses on UX/UI Design and BI & big data consulting & SI.
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    Industries

  • 657
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    San Diego, CA
    Simpletech IT Solutions Inc. Is an IT strategy consulting company established in 2012. Their team provides IT strategy consulting and cloud consulting & SI.
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    Industries

  • 658
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    2 - 9 employees
    San Francisco, CA
    Carezian, Inc. Is a Cybersecurity company founded in 2021. The small team focuses on Cybersecurity and IT managed services.
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  • 659
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    San Mateo, CA
    Founded in 2018, TEN31 Technology is a small IT managed services company. Their team offers IT managed services and Web Development.
    Read More
  • 660
    (0 Reviews)

    Not yet reviewed.

    $25,000+
    10 - 49 employees
    Newport Beach, CA
    LYSI is a small IT strategy consulting company. They offer IT strategy consulting and IT managed services and were established in 2018.
    Read More
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