Our expert analysts identified the top Ruby On Rails developers in California that can build high-performance websites, applications, eCommerce stores, service marketplaces, online libraries and more using the feature-rich software. Discover the best companies in the table below and filter listings by price, reviews and size to choose one that fits your business needs.

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 × Ruby on Rails × Crypto × Sort by: Avg Hourly Price: High to Low ×Clear Filters
  • DD.NYC®

    VerifiedVerified by the DesignRush team for authenticity and credibility.AI LeaderRecognized for strong visibility across AI-powered search and answer engines.

    Result-Driven Agency for Impressive Websites and Branding

    DD.NYC® specializes in modern branding, world-class web design, and innovative graphics. Client roaster including Scholastic, Forbes, VTS, L'Oreal - DD.NYC® is a creative team with detail, ideas, and a solid process...

    Top Services:

    • Web Design
    • Branding
    • UI/UX Design
    • Package Design
    • eCommerce Development
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Portfolios Count
    65 Projects Listed

    DD.NYC® Services

    • Web Design
    • Branding
    • UI/UX Design
    • Package Design
    • eCommerce Development
    • Product Design
    • Graphic Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Forbes
    • Scholastic
    • Dupont
    • Havas
    • Wallmart
    • CyberYachts
    • Chef Antoine Lours
    • 1010 Wilshire
    • @globalnewyorker
    • The Arts Building
    Data sourced from the agency's DesignRush profile

    DD.NYC® Reviews & Testimonials

    • Randolph De Lano
      Randolph De Lano Managing Director at The Real Estate Fund
      5.0★

      Branding Review from Randolph De Lano

      DD.NYC® developed a website and branding campaign for a real estate investment fund. They were also tasked with creating collaterals for the client's branding efforts. DD.NYC® designed a quality website that exceeded the client's expectations. They completed tasks on time and even ahead of schedule at times. They also went above and beyond to ensure that the client understood the processes for each phase of the project.

    • Alexander Barnes
      Alexander Barnes Senior Project Manager at Seattle Software Development
      5.0★

      Web Design Review from Alexander Barnes

      The timeliness, quality, and pricing from DigitalDesign.NYC aligned with the client's expectations. The client is highly pleased with the exceptional and distinctive work produced by DD.NYC®. It responds promptly to communication and feedback, ensuring superior deliverables and a robust project management experience. The team also appreciates agency's readiness to undertake the assignments. (Verified via email)

    • Andrew Fitzgerald
      Andrew Fitzgerald CEO at Maven Energy
      5.0★

      Web Design Review from Andrew Fitzgerald

      Great project all around!

    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
  • Bringing ideas to life one step at a time.

    Kaizen Apps specializes in innovative application development, offering personalized consultations to turn your ideas into impactful digital solutions. Start your project with our expert guidance today...

    Top Services:

    • Web Design
    • Web Development
    • IoT
    • AI Development
    • Blockchain
    • Show more
    Location
    Vacaville, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $65/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
  • Software Engineering That Creates Value

    We're a global team of developers, designers, and problem-solvers creating impactful software since 2007. IT-Dimension builds future-ready software from AI and IoT to mobile, enterprise, and 3D solutions...

    Top Services:

    • IT Services
    • Mobile App Development
    • Web Development
    • Product Design
    • Web Design
    • Show more
    Location
    West Hollywood, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $49/hr
    Portfolios Count
    4 Projects Listed
  • Scaling New Heights

    At HyScaler, we're driven by a mission to be your trusted partner in achieving transformative business objectives. Our global vision focuses on harnessing cutting-edge technologies to craft sustainable, intelligent, and secure solutions...

    Top Services:

    • Mobile App Development
    • Blockchain
    • Software Development
    • AI Development
    • IoT
    • Show more
    Location
    Santa Clara, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    6 Projects Listed
  • Aiming to Achieve Your Business Goals Through Technology

    Code Genesis is a full-stack development company dedicated to building scalable and secure digital platforms. We combine expertise in cloud, automation, and modern software engineering to create solutions that are both innovative and reliable. Our mission is to deliver technology that not only meets todays...

    Top Services:

    • Mobile App Development
    • Software Development
    • UI/UX Design
    • AI Development
    • DevOps Consulting
    • Show more
    Location
    Santa Clara, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    7 Projects Listed
  • HIGH QUALITY SOFTWARE COMPANY IN VIETNAM

    With over 10 years of expertise, AgileTech Vietnam stands at the forefront of delivering innovative technology solutions across a wide range of industries. Our team of 300+ skilled developers has completed more than 1,000 successful projects, ranging from dynamic startups to large-scale enterprises...

    Top Services:

    • Web Development
    • WordPress Website Design
    • UI/UX Design
    • eCommerce Development
    • Web Design
    • Show more
    Location
    Irvine, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    50 Projects Listed
  • Innovation Beyond Imagination

    iApp Technologies: Trusted digital product development partner helping brands turn ideas into powerful & scalable solutions. We specialize in designing and building high-performance Web and Mobile Apps (iOS + Android) that align with evolving market demands and deliver measurable business impact...

    Top Services:

    • Mobile App Development
    • Blockchain
    • AI Development
    • Web Development
    • UI/UX Design
    • Show more
    Location
    San Ramon, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    60 Projects Listed

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1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
129,437+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
47%
3

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We monitor listings regularly; outdated agencies are removed.

Agencies verified
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