Need a big data company in California to help with data mining, data visualization, and business intelligence? We evaluated verified client feedback and case studies from big data firms across the state to profile the leading performers across our listing. Browse the agencies and tailor your search by budget, rates, or team size to find a partner aligned with your criteria. 

Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

United States × California × Government × Sort by: Number of Reviews ×Clear Filters
  • Modern IT. Built Secure. Delivered Right.

    Zazz is a trusted software engineering and IT services partner helping enterprises deliver secure, scalable, high-impact tech initiatives. We solve complex challengeslegacy bottlenecks, tech debt, talent gaps, compliance risks, and system fragmentation...

    Top Services:

    • Mobile App Development
    • IT Services
    • Software Development
    • Staff Augmentation
    • IT Compliance Solution
    • Show more
    Location
    San Francisco, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $45/hr
    Portfolios Count
    36 Projects Listed

    Zazz Services

    • Mobile App Development
    • IT Services
    • Software Development
    • Staff Augmentation
    • IT Compliance Solution
    • Cybersecurity
    • Managed Services
    • Cloud Consulting
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • JP Morgan
    • BBC News
    • PayPal
    • Harvard Innovation Labs
    • HBO
    • Jeddah Season
    • McDonald's
    • NBA
    • Honda
    • Citibank
    Data sourced from the agency's DesignRush profile

    Zazz Reviews & Testimonials

    • Sam Zaid
      Sam Zaid CEO at Getaround
      5.0★

      Mobile App Development Review from Sam Zaid

      Their team's technical proficiency and creativity have significantly contributed to the success of our world's first connected carsharing marketplace. Zazz not only met but exceeded our expectations, delivering a seamlessly integrated and user-friendly mobile app that has truly empowered people to carshare everywhere. The collaboration with Zazz has proven to be a valuable partnership, marked by open communication, timely delivery, and a genuine dedication to our mission.

    • Jay Thrash
      Jay Thrash SENIOR IOS DEVELOPER at Epic Games
      5.0★

      Mobile App Development Review from Jay Thrash

      Their unparalleled expertise and dedication to excellence were evident throughout the entire collaboration. Zazz's team consistently demonstrated a deep understanding of our vision, translating it into a seamless and innovative mobile application. Their commitment to quality and precision in every aspect of the development process was truly impressive. Zazz's ability to navigate complex challenges with agility and deliver solutions that exceeded our expectations was instrumental in the success of our project.

    • Don Harmon
      Don Harmon Director of Global IT Services at Dorel Juvenile
      5.0★

      Mobile App Development Review from Don Harmon

      Zazz's commitment to delivering a high-quality mobile app for Dorel Juvenile was evident throughout the entire development process. The team consistently communicated progress, promptly addressed any concerns or modifications, and ensured that the final product not only met but exceeded our expectations. The mobile app developed by Zazz not only showcased cutting-edge technology but also reflected a deep understanding of the child-centric focus that Dorel Juvenile upholds.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Transforming Enterprises with AI Applications

    ThirdEye Data Transforms Enterprises with Data & AI Solutions & Services. ThirdEye Data leverages Artificial Intelligence & Data technologies to build AI applications for enterprises worldwide...

    Top Services:

    • AI Development
    • Big Data Analytics
    • Software Development
    • IT Services
    • Staff Augmentation
    • Show more
    Location
    San Jose, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    23 Projects Listed

    ThirdEye Data Services

    • AI Development
    • Big Data Analytics
    • Software Development
    • IT Services
    • Staff Augmentation
    • DevOps Consulting
    • Cloud Consulting
    • Mobile App Development
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Microsoft Corp
    • Walmart
    • AWS
    • SCE
    • XPERI
    • Texisle
    • Glastrosch
    • British Petroleum
    • CRC
    • Google
    Data sourced from the agency's DesignRush profile

    ThirdEye Data Reviews & Testimonials

    • Matt Singer
      Matt Singer CEO at Ecotrak
      5.0★

      Big Data Analytics Review from Matt Singer

      ThirdEye helped analyzing data and recommending architecture for enhanced analytics. They understood our business needs really well and went above and beyond to deliver what we were looking for.

    • Kumar Mankala
      Kumar Mankala Former Advisor of the AI/ML Program and Products at SCE
      5.0★

      Software Development Review from Kumar Mankala

      ThirdEye developed CV ML models to automate image quality assessment for Field Asset Inspection (part of Wildfire Mitigation Program). The team delivered the models in time, was able to adapt to changing requirements.

    • Erhan Erdem
      Erhan Erdem Review from Google
      1.0★

      Erhan Erdem's Review Sourced from Google

      I did a voice study for them almost two months ago, still waiting for my payment. I contacted them multiple times and they don't even respond. What a joke.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • World Famous IT Services for Businesses

    Accenture is a renowned worldwide IT services company that excels in digital, cloud, and security solutions. With an extensive range of expertise across over 40 industries, we provide a comprehensive suite of services including Strategy and Consulting, Outsourcing, Interactive, Technology, IoT, and...

    Top Services:

    • Software Development
    • Cybersecurity
    • IT Services
    • IoT
    • Big Data Analytics
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    1000 & Up
    Portfolios Count
    4 Projects Listed

    Accenture Services

    • Software Development
    • Cybersecurity
    • IT Services
    • IoT
    • Big Data Analytics
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Education Non-profit
    • Healthcare Firm
    • Global Apparel Retailer
    Data sourced from the agency's DesignRush profile

    Accenture Reviews & Testimonials

    • Saurabh Choudhary
      Saurabh Choudhary Senior Consultant at LTI
      4.0★

      Financial Review from Saurabh Choudhary

      In my experience it's a good place to work and start your career with, you will get to learn a lot of things which will be quite beneficial in long run.Accenture helps clients across various industries innovate and transform their businesses. Their focus on digital technologies, such as AI, cloud, and analytics, enables them to deliver impactful solutions. Overall, Accenture's commitment to innovation and client success makes them a leading player in the consulting industry.

    • Rishi Kumar
      Rishi Kumar Sr. Servicemax and Salesforce Developer at Boston Scientific
      4.7★

      Salesforce Review from Rishi Kumar

      I had the opportunity to work with Accenture on implementing Salesforce with ServiceMax. Their expertise and dedication were impressive. Accenture's work on implementing Salesforce and the ServiceMax managed package was invaluable, significantly benefiting our organization's operations and efficiency. However, one area for improvement would be the documentation process. It was challenging to access comprehensive documentation, which slowed down certain aspects of our project. Nonetheless, I recommend Accenture as their talented team delivers exceptional results.

    • William Lewis
      William Lewis Review from Google
      5.0★

      William Lewis's Review Sourced from Google

      ISSA monthly meeting. Great venue. Good location. Extraordinary buffet at meeting. Interesting discussions.Accenture goes the mile to support our meetings and I always enjoy working with their team. By the way the view of LA is incredible.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Dreamers Inc.

    VerifiedVerified by the DesignRush team for authenticity and credibility.

    Your spark, our fuel

    Dreamers is a research, data science, and tech consultancy that specializes in building solutions for complex problems. We are based in sunny California, but we work remotely with clients from all over the world. We're engineer-owned and operated, meaning you'll get personal attention and quick answers...

    Top Services:

    • AI Development
    • Blockchain
    • Software Development
    • Mobile App Development
    • Wearables
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    14 Projects Listed

    Dreamers Inc. Services

    • AI Development
    • Blockchain
    • Software Development
    • Mobile App Development
    • Wearables
    • IoT
    • Software Testing
    • VR/AR
    • Big Data Analytics
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • University of California Los Angeles
    • John Hopkins University Applied Physics Laboratory
    • University of California Santa Barbara
    • University of Michigan
    • SpendLogic
    • Arizona Court of Appeal (Div 2)
    • HyperCite
    • Boeing Aerospace
    • British Aerospace Engineering
    • Adamant Aerospace
    Data sourced from the agency's DesignRush profile

    Dreamers Inc. Reviews & Testimonials

    • Dennis Temko
      Dennis Temko CEO at HyperCite
      5.0★

      Software Development Review from Dennis Temko

      Dreamers was the only firm capable of building my ambitious vision for HyperCite. They transformed an unprecedented concept into a patented, production-grade legal technology platform designed for fact-checking. This included help in product strategy, and leading UX, algorithm development, AI, database and cloud architecture, frontend and backend engineering, scalability, observability, CI/CD, deployment, and ongoing maintenance. They delivered two California product versions and a dedicated Arizona implementation integrated directly with the appellate court, where HyperCite has operated for more than five years. Today, HyperCite not only automates hyperlinks between legal briefs and cited records; its AI fact-checking system compares claims against supporting evidence, flags contradictions and unsupported assertions, and takes judges and attorneys directly to the underlying source. The result is faster, clearer, and more reliable judicial review, delivered through close collaboration with HyperCite’s leadership and the Arizona court CIO.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • High-Level Technology for Small and Large Business.

    ALFTEK offers full-service network infrastructure, system administration, network security, software development and other managed IT services. What's more, the company also integrates robust software solutions with cloud-based SaaS, PaaS and IaaS platforms for website and social & blog design...

    Top Services:

    • Software Development
    • Cybersecurity
    • IT Services
    • Managed Services
    • Web Design
    • Show more
    Location
    Concord, California
    Number of Employees
    Under 49
    Portfolios Count
    4 Projects Listed

    ALFATEK Services

    • Software Development
    • Cybersecurity
    • IT Services
    • Managed Services
    • Web Design
    • IoT
    • Mobile App Development
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Consultary
    • iBookingVIP
    • MONXPERT
    Data sourced from the agency's DesignRush profile
  • Engineering partner for digital agencies

    GetDevDone is the engineering partner for digital agencies...

    Top Services:

    • Web Development
    • Web Design
    • WordPress Website Design
    • eCommerce Development
    • Mobile App Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    19 Projects Listed

    GetDevDone Services

    • Web Development
    • Web Design
    • WordPress Website Design
    • eCommerce Development
    • Mobile App Development
    • Software Development
    • AI Development
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Mazda
    • Maersk
    • Havas
    • Redbull
    • Discovery
    • Smashing Magazine
    • Qantas
    • Buy Sell Ads
    • AARP
    • Behance
    Data sourced from the agency's DesignRush profile
  • A Commitment to Innovation and Sustainability

    We identify gaps and opportunities in order to suggest the most effective technology solutions to improve your process and streamline your business. We have a flexible and customized solutions to all of our clients business requirements. We follow a strict project plan with timelines, milestones and a...

    Top Services:

    • Web Design
    • Big Data Analytics
    • Cloud Consulting
    • Mobile App Development
    • Software Development
    • Show more
    Location
    Danville, California
    Number of Employees
    Under 49

    Arrayflair LLC Services

    • Web Design
    • Big Data Analytics
    • Cloud Consulting
    • Mobile App Development
    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Automotive Industry
    • Finance Industry
    • HR Industry
    Data sourced from the agency's DesignRush profile
  • Engage Emerge Excel.

    For over 30 years, Kumaran Systems has been at the forefront of the IT industry, renowned for its expertise in modernizing legacy software systems. In addition to legacy modernization, we provide comprehensive software development and testing services, enhanced with cloud capabilities, to meet the evolving...

    Top Services:

    • Software Development
    • Software Testing
    • Mobile App Development
    • Cloud Consulting
    • IT Services
    • Show more
    Location
    Menlo Park, California
    Number of Employees
    250 - 499

    Kumaran Systems Services

    • Software Development
    • Software Testing
    • Mobile App Development
    • Cloud Consulting
    • IT Services
    • Big Data Analytics
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Honda
    • Royal Bank of Canada
    • Department of Finance Canada
    Data sourced from the agency's DesignRush profile

    Kumaran Systems Reviews & Testimonials

    • Rajesh Kumar
      Rajesh Kumar Review from Google
      1.0★

      Rajesh Kumar's Review Sourced from Google

      Hii is there any requirement for freshers??I have good theoretical knowledge about core java SQL database HTML CSS javascript react js J2EE MySQL database and bootstrap

    • Mars Chai
      Mars Chai Review from Google
      1.0★

      Mars Chai's Review Sourced from Google

      Extremely awful company that holding and delaying payments. The financial department is lack of professionalism and efficiency. I would never work or buying service from this company.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Engineering Quality, Securing Digital Success.

    Qualitest is the worlds leading managed services provider of AI-led quality engineering solutions. It helps brands transition through the digital assurance journey and make the move from conventional functional testing to adopt innovations such as automation, AI, blockchain, and XR...

    Top Services:

    • Software Testing
    • AI Development
    • Cybersecurity
    • Big Data Analytics
    • Show more
    Location
    Santa Clara, California
    Number of Employees
    1000 & Up

    Qualitest Group Services

    • Software Testing
    • AI Development
    • Cybersecurity
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • giffgaff
    • News UK
    • AVAYA
    Data sourced from the agency's DesignRush profile
  • Location-Based Solutions Real-World Impact.

    Castaneda Networks LLC is a California-based minority-owned technology consultancy specializing in Geographic Information Systems (GIS), data analytics, and geo marketing solutions. We provide customized services to public agencies and private-sector clients, helping them visualize, analyze, and act on...

    Top Services:

    • Web Development
    • Big Data Analytics
    Location
    West Covina, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $1,000 - $10,000

    Castaneda Networks LLC Services

    • Web Development
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Hearst Corporation
    • EquityCutz
    • BlendingGo
    Data sourced from the agency's DesignRush profile
  • Custom Software That Works In The Real World

    SoftDoes builds custom software, AI, and web applications for mid-market companies that need enterprise-grade results without the overhead of an in-house team. U.S.-based leadership. Full IP ownership. No lock-in...

    Top Services:

    • Software Development
    • AI Development
    • Mobile App Development
    • Web Development
    • UI/UX Design
    • Show more
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed

    Soft Does Services

    • Software Development
    • AI Development
    • Mobile App Development
    • Web Development
    • UI/UX Design
    • Cloud Consulting
    • Blockchain
    • Software Testing
    • Digital Strategy
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Altera
    • Brizacorp
    • Color and Harmony
    • FMY Orthodontics
    Data sourced from the agency's DesignRush profile
  • Data Science & AI Services

    Tredence Inc. is a data science and AI company helping enterprises bridge the gap between analytics and execution, driving data-driven decisions and business growth across industries...

    Top Services:

    • Big Data Analytics
    • AI Development
    Location
    San Jose, California
    Number of Employees
    1000 & Up

    Tredence Inc Services

    • Big Data Analytics
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Mars
    • PepsiCo
    • Unilever
    Data sourced from the agency's DesignRush profile

    Tredence Inc Reviews & Testimonials

    • Oleg
      Oleg Review from Google
      2.0★

      Oleg's Review Sourced from Google

      In 2017 we had an exceptionally dissatisfying data science consulting experience with the Tredence team in Silicon Valley and India. In summary, lots of over-promises, questionable expertise and practices, requests for more payments (rising from their own mis-judgements of timelines), casually missed deadlines, lack of understanding of basics of data science, NLP, machine learning, statistics and coding. Tredence has worked with us on a couple of predictive modeling projects for over a year without the meaningful deliverables.This is not the first feedback; and I truly hope their management has fixed the issues, raised values/ethics and has taken such complaint as a gift to act upon and clean up the practices.The "excellent" reviews from avatars (with no history) are doubtful and come across as biased and/or unreal. The legitimate reviews from client companies carry the most impact. Hopefully, this review is helpful for others in leveling their expectations.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Turning Data Into Visual Stories That Matter

    Stamen is a San Francisco-based data-visualization and cartography studio that helps organizations turn complex data into compelling, interactive experiences. With over two decades of experience, the agency specializes in data visualization, custom map design, interactive data-driven tools, data storytelling...

    Top Services:

    • Big Data Analytics
    Location
    San Francisco, California
    Number of Employees
    Under 49

    Stamen Design LLC Services

    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • UCSF
    • Bishops
    • HudHud Maps
    Data sourced from the agency's DesignRush profile
  • Unlock global understanding.

    RWS Group is a global content solutions and language services provider that combines human expertise with advanced technology to help organizations manage, translate, transform and communicate content and data in multiple languages across industries worldwide...

    Top Services:

    • AI Development
    • Big Data Analytics
    Location
    Monterey, California
    Number of Employees
    1000 & Up

    RWS Group Services

    • AI Development
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Danone
    • DHL
    • HP
    Data sourced from the agency's DesignRush profile

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