Top Development Companies in California (United States)

California is a leader in innovation and technology, making it a hub for development. Its ecosystem attracts top talent and fosters a thriving environment for growth. With its emerging location and constant evolution, California is a go-to destination for development. Discover the Top 135 Development Companies in California.

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  • Aron Web Solutions
  • CoSupport AI
  • Bloorsoft
  • Idea Maker
  • Custom Stacks
  • Saritasa
  • Human
  • Blitz Mobile Apps
  • Robosoft Technologies Inc.
  • Azumo

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List of the Best Development Companies in California

135 Companies Ranking last updated on: February 13, 2025

  • Aron Web Solutions

    We make businesses stand out

    DevelopmentWeb DevelopmenteCommerce DevelopmentSoftware Development
    First things first, Aron Web Solutions is a very committed IT organization that believes in serving businesses and has been serving customers all around the world. We have now been serving companies since 2012 and we have no plans to seize our existence any sooner till ...
    • 51-100 Members
    • Founded in 2012
    • India, United Kingdom, Austral +
    • $10 - $24/hr for Development
    • $5,000 to $10,000 for Development
    • 25% Web Development

  • CoSupport AI

    All-in-one AI solution for Customer Support

    DevelopmentArtificial Intelligence
    CoSupport AI: A Patented All-in-One Solution for Customer Support. CoSupport AI is a leading provider of AI-driven solutions designed to transform customer support and address diverse business needs. The company offers an AI-driven platform that redefines the business approach...
    • 11-20 Members
    • Founded in 2020
    • California, United States
    • $100 - $149/hr for Development
    • $5,000 to $10,000 for Development
    • 100% Artificial Intelligence

  • Bloorsoft

    We help startups build apps that users love

    DevelopmentWeb DevelopmentMobile App DevelopmentSoftware Development
    Bloorsoft is a San Francisco & Toronto based boutique software development agency that specializes in working with funded startups. We help founders build products that users love. With more than 10 years of experience, the team at Bloorsoft is dedicated to creating high-quali...
    • 2-10 Members
    • Founded in 2022
    • San Francisco, CA
    • $100 - $149/hr for Development
    • $10,000 to $25,000 for Development
    • 25% Web Development

  • Idea Maker

    US software development agency

    DevelopmentWeb DevelopmentMobile App DevelopmentSoftware Development
    IdeaMaker.agency is a software development house that specializes in mobile apps, websites, complex SAAS projects and AI development. We are located in Orange County, CA but we work all over the world. Contact us for a free consultation.
    • 21-50 Members
    • Founded in 2016
    • Irvine, CA
    • $100 - $149/hr for Development
    • $25,000 to $50,000 for Development
    • 25% Web Development

  • Custom Stacks

    Custom Software & Artificial Intelligence

    DevelopmentSoftware DevelopmentMobile App Development
    Purpose-built Custom Software and AI Development for the Best Version of your Business. At Custom Stacks we provide clients a personalized, transparent, and dependable software development experience. We achieve this by staying true to our time-proven development process, comm...
    • 21-50 Members
    • Founded in 2018
    • Rancho Cucamonga, CA
    • $100 - $149/hr for Development
    • $10,000 to $25,000 for Development
    • 30% Software Development

  • Saritasa

    Builders of Better

    DevelopmentSoftware DevelopmentVirtual RealityWeb Development
    At Saritasa, we empower businesses through technology. We design and develop custom, commercial-grade software systems that simplify complex operations, create meaningful user experiences, and deliver scalable, enduring business value. With nearly two decades of experience, w...
    • 51-100 Members
    • Newport Beach, CA
    • $100 - $149/hr for Development
    • $50,000 to $75,000 for Development
    • 40% Software Development

  • Human

    Results and human-first digital marketing agency

    DevelopmentSoftware DevelopmentWeb Development
    Human is a full-service digital marketing agency that is passionate about people and results. We partner with a small number of mid-sized businesses as their fully outsourced CMO and digital execution team to drive meaningful business growth, value and ROI. Our digital marketing...
    • 21-50 Members
    • Irvine, CA
    • $150 - $199/hr for Development
    • $5,000 to $10,000 for Development
    • 25% Software Development

  • Blitz Mobile Apps

    Satisfying the masses with powerful mobile apps

    DevelopmentMobile App Development
    Blitz Mobile Apps, leading mobile app Development company in USA, dives headfirst into today s dynamic market s challenges to provide robust, scalable, and outcome-oriented mobile app development solutions to help businesses scale. Blitz Mobile Apps is the top mobile app develop...
    • 201-500 Members
    • Santa Rosa, CA
    • $50 - $99/hr for Development
    • $5,000 to $10,000 for Development
    • 7% Mobile App Development

  • Robosoft Technologies Inc.

    App development & digital platforms made simple.

    DevelopmentMobile App DevelopmentSoftware DevelopmentWeb Development
    Robosoft Technologies is an experience engineering company. We are chosen for our expertise in: Mobile App Development Web Development Cross-Platform Application Development Agile Teams & Pods Digital Transformation solutions Custom Software Development Digital Product Strategy ...
    • 201-500 Members
    • San Francisco, CA
    • $100 - $149/hr for Development
    • $25,000 to $50,000 for Development
    • 50% Mobile App Development

  • Azumo

    Nearshore Software Development

    DevelopmentSoftware DevelopmentStaff AugmentationWeb Development
    Azumo: Fuel Smarter Growth with our Nearshore Software Expertise We have successfully empowered hundreds of organizations over the last 8+years, to build high-quality software solutions with our planned, efficient approach to delivering nearshore software development expertise. ...
    • 51-100 Members
    • San Francisco, CA
    • $25 - $49/hr for Development
    • $10,000 to $25,000 for Development
    • 40% Software Development

  • EltexSoft

    Web Solutions | Mobile Apps | Team Augmentation

    DevelopmentWeb DevelopmentStaff AugmentationSoftware Development
    At EltexSoft we build custom software solutions, as well as augment existing engineering teams of startups, Fortune 500 and INC 5000 companies. Following business domains are the area of our highest expertise: Sports, Health & Wellness, Longevity (web+mobile platforms) F...
    • 21-50 Members
    • Burbank, CA
    • $50 - $99/hr for Development
    • $10,000 to $25,000 for Development
    • 25% Web Development

  • Goji Labs

    Launch Ventures, not Apps

    DevelopmentSoftware DevelopmentUser ExperienceMobile App Development
    Goji Labs is an award-winning digital product agency, headquartered in Los Angeles. For over 10 years, our team helped startups, Fortune 500 s, and large non-profits launch hundreds of digital products in a variety of industries. Our services include product strategy, UX research...
    • 21-50 Members
    • Los Angeles, CA
    • $100 - $149/hr for Development
    • $25,000 to $50,000 for Development
    • 100% Software Development

  • Kwanso LLC

    A Custom Software Development Shop

    DevelopmentWeb DevelopmentMobile App DevelopmentSoftware Development
    Kwanso is a design and development consultancy that brings product ideas to life. For over 10 years, we have delivered for Fortune 100 companies, startups, digital agencies and mid-size enterprises. We are a true technology partner and provide highly productive teams to deliver t...
    • 51-100 Members
    • San Francisco, CA
    • $25 - $49/hr for Development
    • $25,000 to $50,000 for Development
    • 20% Web Development

  • Vardot

    Enterprise Drupal Solutions

    DevelopmentWeb DevelopmentWeb DesignMobile App Development
    Vardot is a global web development and design solutions company that leverages open-source technology to help businesses achieve digital transformation. With a comprehensive approach to project management, we guide our clients through every stage of the project lifecycle. About ...
    • 51-100 Members
    • Santa Clara, CA
    • $100 - $149/hr for Development
    • $25,000 to $50,000 for Development
    • 60% Web Development

  • Naked Development

    Creative Development Agency

    DevelopmentMobile App DevelopmentBrandingWeb Design
    Naked. We don't just build apps, we turn ideas into viable app businesses. It takes a people-centric approach to building, branding & marketing your next big idea - and there's no cutting corners. That's why our team of creative problem-solving visionaries are in-house, and US-b...
    • 21-50 Members
    • Irvine, CA
    • $150 - $199/hr for Development
    • $25,000 to $50,000 for Development
    • 100% Mobile App Development

  • PlatformXR

    Dynamic AR/VR Application Development

    DevelopmentMobile App Development
    PlatformXR is a US based team of VR and AR experts, creating custom solutions and business-purposed applications. Our mission is to apply immersive technology to it s greatest potential, and partner with clients who need a capable development team for their custom-built applica...
    • 2-10 Members
    • San Diego, CA
    • $100 - $149/hr for Development
    • $10,000 to $25,000 for Development
    • 10% Mobile App Development

  • Pegasus One

    Offshore Value, Local Service.

    DevelopmentSoftware DevelopmentCloud ComputingArtificial Intelligence
    Recognized as one of Inc.’s 5000 Fastest-Growing US Companies four times | Microsoft Gold Partner | Amazon Consulting Partner --- Taking the risk out of software development services Pegasus One is a hybrid software development firm that combines the simplicity of a US-based...
    • 51-100 Members
    • Fullerton, CA
    • $25 - $49/hr for Development
    • $10,000 to $25,000 for Development
    • 30% Software Development

  • Urban Insight

    Web Strategy, Design & Development

    DevelopmentWeb DevelopmentWeb DesignUser Experience
    Urban Insight champions your mission-focused organization by creating custom, user-friendly, fast, and flexible websites and applications that supercharge your growth. Established in 1997, we’ve successfully completed and launched over 500 projects for a wide range of clients,...
    • 21-50 Members
    • Los Angeles, CA
    • $150 - $199/hr for Development
    • $50,000 to $75,000 for Development
    • 50% Web Development

  • Dreamers Inc.

    Your spark, our fuel

    DevelopmentMobile App Development
    We re a research and development group focused on emerging tech, complex problem solving and machine learning. We re primarily interested in technologically challenging projects in which technological and epistemological innovation is tied to ethical gains. Our fundamental inter...
    • 2-10 Members
    • Los Angeles, CA
    • $100 - $149/hr for Development
    • $25,000 to $50,000 for Development
    • 15% Mobile App Development

  • Yellow

    Where your ideas turn into code and interfaces

    DevelopmentWeb DevelopmentArtificial Intelligence
    We know how to create business value, not just another piece of software. Yellow has already helped 220+ businesses succeed on the market. For the last 9 years we have been recognized as Clutch’s Top 1000 Global Service Provider, a Top Mobile App Developer, and a Top B2B Compa...
    • 51-100 Members
    • San Francisco, CA
    • $50 - $99/hr for Development
    • 50% Web Development

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    Development Company in California - FAQs

    Are you looking for the top Development companies in California, United States? ITProfiles has carefully curated a list of leading Development companies in California based on certain qualitative and quantitative metrics. You can search, compare, and contact these companies based on your criteria. You can also check details about these leading Development companies in California, United States such as their profiles, portfolios, and recent client reviews (Feb 2025 updated) to decide on your Development project.

    How many Development companies are there in California?

    There are 135 companies on ITProfiles specializing in Development and based in California.

    How much does it typically cost for Development in California?

    The average project cost for Development companies in California on ITProfiles ranges from $10,000 to $25,000. Pricing varies based on project complexity, scope, timeline, and required expertise. Many companies offer flexible pricing models, such as hourly rates, fixed prices, or dedicated team arrangements. For an accurate estimate, requesting a quote tailored to your specific needs is best.

    Can I contact multiple companies for a project proposal?

    Absolutely! It's recommended to contact multiple Development companies in California for project proposals. This allows you to compare their offerings, expertise, pricing, and approach before deciding.

    Can I get a free quote for my Development project?

    Yes, many Development companies in California offer free quotes for projects. Simply submit your project details, and we’ll handpick the top five service providers that best match your needs. These companies will then reach out to you with an ITProfiles reference, providing an estimated cost and timeline for your project.