Best California Data Science Companies

53 Companies - Rankings updated: July 05, 2026

DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.

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United States × California ×

  • Securis360

    Your Security Partner.

    Your Security Partner.

    If you think about SOC2, ISO27001, ISO 42001, GDPR, HIPAA, HITRUST Services, Securis360 For you! We weave a web of protection so strong, even the most cunning spider wouldn't dare to tangle.  [... see all Securis360 reviews ]

    Top Services:

    • IT Services
    Location
    Milpitas, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $10/hr
    Minimal Budget
    Under $1,000
    View Profile
    4.3 4.3 (1)
    4.9 4.9 (15)

  • Perceptive Analytics

    Provider of Data Analytics Services

    Provider of Data Analytics Services

    Perceptive Analytics is an award-winning analytics firm delivering cutting-edge solutions in Advanced Analytics, Generative AI, and Business Intelligence. We help organizations unlock the full value of their data. Our core strength is empowering businesses through adept data utilization.  [... view Perceptive Analytics profile ]

    Top Services:

    • IT Services
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
    View Profile
    4.4 4.4 (37)

  • Persistent

    See Beyond, Rise Above.

    See Beyond, Rise Above.

    Persistent Systems, a renowned global leader in software product development and technology services. Delve into our innovative offerings to stay ahead in the ever-evolving landscape of technology.  [... view Persistent profile ]

    Top Services:

    • IT Services
    • Cybersecurity
    • Mobile App Development
    Location
    Santa Clara, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $50,000 & Up
    View Profile
    4.6 4.6 (730)

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