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 × Sort by: Number of Reviews ×Clear Filters
  • UI/UX Design And Development Firm For Data-driven B2B SaaS Companies

    Making complex products simple, useful, and human...

    Top Services:

    • Digital Services
    • Branding
    • Product Design
    • Web Design
    • UI/UX Design
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    6 Projects Listed
  • Cutting-Edge Web, Software & AI Development Company

    TechVerdi a cutting-edge development company offering web, software, mobile app, and AI solutions to create scalable, innovative solutions for businesses...

    Top Services:

    • Software Development
    Location
    Santa Clara, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Portfolios Count
    1 Project Listed
  • Digital Marketing Advertising Agency

    Sansarahub, your trusted hub for comprehensive digital solutions. With over 13+ years of experience, we specialize in driving digital transformation to help your business grow, scale, and lead the market...

    Top Services:

    • Branding
    • Logo Design
    • Graphic Design
    • Web Design
    • Web Development
    • Show more
    Location
    California City, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Portfolios Count
    9 Projects Listed
  • Developing The Best Mobile Apps

    Appingine is a top app development company in the U.S., known for turning bold ideas into powerful mobile experiences. We create award-winning apps that consistently earn recognition and visibility on the App Store and Google Play. Our team is dedicated to delivering high-quality, user-focused solutions that...

    Top Services:

    • Mobile App Development
    • AI Development
    • VR/AR
    • Web Development
    • Blockchain
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $35/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
  • Lukasa is a next-gen consulting partner helping organizations transform through data modernization,

    Custom Software that Actually Works the Way You Do...

    Top Services:

    • Business Consulting
    • Software Development
    • AI Development
    • VR/AR
    • ERP Consulting
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
  • Boost your business with a custom website, SEO & AI Search

    Your online presence may be costing you customers. We fix that that with custom websites that convert and the SEO & AI Search strategies to get them noticed...

    Top Services:

    • Web Design
    • WordPress Website Design
    • AEO
    • SEO
    • Digital Strategy
    • Show more
    Location
    Santa Monica, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Portfolios Count
    8 Projects Listed
  • Crafting Unique Digital Experiences

    RedTail Web Design delivers custom web development and design solutions built around your unique goals. Focused on creating engaging digital experiences, we work with entrepreneurs, tech startups, creatives, and a wide range of growing businesses...

    Top Services:

    • Logo Design
    • Web Design
    • SEO
    • Graphic Design
    • Video Production
    • Show more
    Location
    Fresno, California
    Number of Employees
    Under 49
    Portfolios Count
    1 Project Listed
  • Canadas Trusted Partner

    iQlance Solutions Canada is a global technology service provider specializing in delivering advanced digital products tailored to modern business needs. The company focuses on building scalable, secure, and high-performance solutions, helping organizations turn their ideas into successful digital platforms...

    Top Services:

    • Web Development
    • Mobile App Development
    • Software Development
    Location
    Ontario, California
    Number of Employees
    50 - 99
    Minimal Budget
    $10,000 - $25,000
  • Engage The World In The Worthwhile

    Fifty and Fifty is a San Diego-based growth strategy and marketing agency helping nonprofit organizations and social enterprises translate strategy into the brand, marketing, web, and technology systems that drive sustained engagement and revenue growth...

    Top Services:

    • Digital Services
    • Branding
    • Digital Strategy
    • Design Services
    • Creative Services
    • Show more
    Location
    Encinitas, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $10,000 - $25,000
  • Strategy, design, engineering, and AI

    Bay Area Coders is a San Francisco-based product and engineering studio working with venture-backed startups and growth-stage companies since 2016. We combine strategy, design, engineering, and AI to help teams ship real products and modernize existing ones...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    • AI Development
    • Design Services
    • Show more
    Location
    Roseville, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $1,000 - $10,000
  • We build websites, SaaS platforms & AI solutions that help ambitious brands launch, scale, and grow

    Creexio is a modern software and digital agency headquartered in Irvine, California.We help startups, founders, and fast-growing brands build high-performance digital products - from conversion-focused websites and custom SaaS platforms to Shopify stores, AI integrations, and legacy app...

    Top Services:

    • Digital Strategy
    • Branding
    • WordPress Website Design
    • Web Development
    • eCommerce Development
    • Show more
    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000
  • We Build Digital Products, Experiences, And Systems ‍that Matter.

    Born West is a creative tech agency. We turn ambitious ideas into working software from inception to launch. Our senior strategists, designers, and engineers work as one team to shape digital products, AI-powered tools, platforms, and experiences that are thoughtful, scalable, and built to ship...

    Top Services:

    • Product Design
    • Web Design
    • eCommerce Development
    • Web Development
    • WordPress Website Design
    • Show more
    Location
    Concord, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
  • Digital | Cloud | Data | Cybersecurity

    Cloud, Data & AI Solutions That Scale...

    Top Services:

    • AI Development
    • Software Development
    • IT Services
    • Cloud Consulting
    • Big Data Analytics
    • Show more
    Location
    Pleasanton, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr
  • Websites That Keep Working After Launch

    Digital Anchor is a San Diego web systems studio for small businesses, nonprofits, and growing teams. We rebuild dated websites, take over WordPress installs nobody wants to touch, and keep search rankings intact through the move. After launch, we stay on as the people you call when something breaks...

    Top Services:

    • Web Design
    • WordPress Website Design
    • Web Development
    • eCommerce Development
    • Digital Marketing
    • Show more
    Location
    San Diego, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $1,000 - $10,000
  • Your Trusted Partner For Enterprise AI, Planning, Analytics & Automation

    GenXAI is a publicly listed technology company building enterprise planning and data systems. Our team of 450+ consultants delivers Anaplan and SAP led implementations, ERP transformation, data analytics and engineering, and application development for clients across India, the United States, Malaysia, and...

    Top Services:

    • ERP Consulting
    • CRM Consulting
    • Big Data Analytics
    • IT Services
    • Business Consulting
    • Show more
    Location
    Pleasanton, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
  • We Bring The Tech. You Get The Wins.

    Teamvoy is an AI engineering and transformation partner. We help companies make smarter technology decisions and turn them into production-ready software...

    Top Services:

    • Software Development
    • AI Development
    • Design Services
    • Web Design
    • UI/UX Design
    • Show more
    Location
    Covina, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed
  • Marketing That Works Like An In-House Team

    Scoompy Inc. is a U.S.-based full-service digital marketing agency helping businesses grow through SEO, GEO, PPC, advertising, branding, public relations, content marketing, email marketing, digital strategy, web design, and development. We work as an extension of our clients in-house teams, combining search...

    Top Services:

    • Digital Services
    • Graphic Design
    • Public Relations
    • Digital Strategy
    • Reputation Management
    • Show more
    Location
    San Marcos, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $10/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Start building your online success story today with Hollywood Web Studio.

    At Hollywood Web Studio, we combine creative design, modern technology and strategic marketing to create websites and digital experiences...

    Top Services:

    • Digital Services
    • Video Production
    • Branding
    • Design Services
    • Reputation Management
    • Show more
    Location
    San Diego, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $1,000 - $10,000
  • Quality-Driven Software, AI, and QA Solutions

    QualityWorks Consulting Group builds custom software, web and mobile applications, and AI-integrated products, backed by deep software testing and quality engineering expertise. Founded in 2010, the Black-owned, woman-led firm helps organizations create digital products, apply AI to business operations, and...

    Top Services:

    • Web Design
    • AEO
    • Software Testing
    • Mobile App Development
    • Software Development
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
  • Quality Visuals & Impactful Strategy

    Levesque Creative is a creative agency and media production firm based in Sacramento, California, specializing in visual content and digital growth strategies for architects, landscape designers, swimming pool builders, and luxury builders. Its services combine architectural photography and video, 4K drone...

    Top Services:

    • Video Marketing
    • Video Production
    • Creative Services
    • Design Services
    • Web Design
    • Show more
    Location
    West Sacramento, California
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000

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Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
129,561+
2

Portfolio Review

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

Applicants rejected
47%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
169

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