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.

Best Ruby On Rails Development Companies in California

6 Companies - Rankings updated: August 26, 2026

Each agency undergoes DesignRush evaluation for professional expertise and genuine client satisfaction to assist your search. Some featured placements are paid.

United States × California ×
  • AI is easy. Systems are hard. We build systems.

    AI is easy. Systems are hard. We build systems...

    Location
    Irvine, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    20 Projects Listed

    Aristek Systems Services

    • Software Development
    • AI Development
    • Staff Augmentation
    • Cloud Consulting
    • Software Testing
    • Big Data Analytics
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Software& IT Industry
    • Energy Industry
    • Education Industry
    • Entertainment Industry
    • Health Care Industry
    • Transportation & Logistics Industry
    Data sourced from the agency's DesignRush profile

    Aristek Systems Reviews & Testimonials

    • Undisclosed
      Undisclosed CEO at E-Commerce Development Company
      5.0

      Web Development Review from Undisclosed

      Aristek Systems developed, tested, and released a new website for an e-commerce development company. The team utilized Ruby on Rails, Elixir, Phoenix Framework, JavaScript, GraphQL, PostgreSQL, and AWS. Aristek Systems was able to deliver a fully functional software, much to the client's delight. The team was highly communicative, and internal stakeholders were particularly impressed with the vendor's professionalism and attention to detail.

    • Undisclosed
      Undisclosed Product Design Manager at Educational Digital Platform
      5.0

      Web Design Review from Undisclosed

      Aristek Systems has redesigned the UI/UX of an existing educational digital platform. The team has refreshed the interface and added new features to deliver a more comprehensive experience for users. The client is satisfied with Aristek Systems' work and performance. The team delivers within the specified timeframe and manages the project seamlessly. Moreover, they stand out for their availability, problem-solving capabilities, and amazing work culture; they're easy to work with.

    • Anonymous
      Anonymous CTO at Business Consulting Company
      5.0

      Software Development Review from Anonymous

      I had the privilege of working with Ruslan and his team at Aristek for the past three years. It is hard to find that level of dedication in an offshore vendor/partner but Ruslan and the Aristek team deliver it. I would highly recommend Ruslan and Aristek to anyone needing an expert level partner in EdTech and SaaS platform development.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • AI-Enabled IT and Digital Services Company

    SunTec India is an AI-enabled IT and digital services company with 25+ years of experience, 1,500+ full-time employees, 8500+ clients worldwide, and a full spectrum of IT outsourcing, data solutions, digital engineering, eCommerce support, digital marketing and photo editing services...

    Location
    Laguna Beach, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $25/hr
    Portfolios Count
    6 Projects Listed

    SunTec India Services

    • Web Development
    • Mobile App Development
    • eCommerce Development
    • SEO
    • Web Design
    • eCommerce
    • PPC
    • AI Development
    • BPO
    • CRM Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Bose
    • Panasonic Lumix
    • Honda
    • Pepsico
    • Dentsu
    • Corzen
    • Nielsen
    • Dalmia Cement
    • Lumens
    • EMC2
    Data sourced from the agency's DesignRush profile

    SunTec India Reviews & Testimonials

    • Joe Di Lucci
      Joe Di Lucci eStore Manager at Ranger Plumbings
      5.0

      Shopify Review from Joe Di Lucci

      The ideal solution provider for every eCommerce store setup and optimization issues. We wanted our new Shopify store to get great brand visibility and conversions but lacked the resources and expertise for it. Partnering with SunTec India gave us access to experts who competently assessed our problems, solving them with creative product descriptions, SEO strategy generation, and product data entry service, bringing us on par with our competition.

    • Walter Venkel
      Walter Venkel Sales Executive at Firmwrap Gifts
      5.0

      Amazon Review from Walter Venkel

      Excellent Amazon eStore product listing and advertising support that skyrocketed our sales. Our corporate gifting eCommerce startup faced the problem of poor brand visibility on Amazon. We partnered with SunTec India to handle the problem and were delighted with the results. They sorted our products and listed them accordingly while optimizing our PPC campaign to give better ROI. They're now our permanent partner for the job.

    • Randy Linker
      Randy Linker Manager-Digital Marketing at Bergman Holdings
      5.0

      Web Development Review from Randy Linker

      The web development partner that can give bespoke websites within a tight schedule and budget. Our company deals with supplying industrial equipment procured from many manufacturers to clients of various industries. We had not been doing this well due to the lack of traffic-generating capabilities of our incumbent website. SunTec India fixed its content and SEO issues, making it more appealing to our target group. We've now become standout suppliers in our industry; thanks to SunTec India.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • One-stop scientific communication agency

    Nanobot Communication is an award winning one-stop scientific communication agency. We provide life science companies with marketing and communication strategies that are efficient, responsive, and centered on delivering a measurable return on investment (ROI)...

    Location
    San Diego, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $65/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    23 Projects Listed

    Nanobot Medical Services

    • Video Production
    • Creative Services
    • Digital Strategy
    • Web Development
    • Web Design
    • Content Marketing
    • VR/AR
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • MSD
    • Novartis
    • Bayer
    • Biocad
    • Janssen
    • Fluosphera
    • Bionorica
    • Calidi
    • Ferronova
    • Exeltis
    Data sourced from the agency's DesignRush profile
  • 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...

    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

    HyScaler Services

    • Mobile App Development
    • Blockchain
    • Software Development
    • AI Development
    • IoT
    • IT Services
    • Cybersecurity
    • Cloud Consulting
    • Web Development
    • Wearables
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Urban Sports Club
    • Artisan
    • Stanford University
    • Khelnow
    • Doctegrity
    • EA
    • Tune Protect
    Data sourced from the agency's DesignRush profile

    HyScaler Reviews & Testimonials

    • David Robinson
      David Robinson Review from Google
      5.0

      David Robinson's Review Sourced from Google

      Can't say enough about this group! Amazing work and great people. You can really tell that the culture here is far above other shops because everyone seemingly loves what they do, and it shows in the final product. Solid work, agreeable rates, and on time delivery. 100% recommend!

    • Ernesto Berrum
      Ernesto Berrum Review from Google
      5.0

      Ernesto Berrum's Review Sourced from Google

      Great group of people to work with. Very flexible and have been delivering on all of our request in a timely manner. Our platform runs on Ruby on Rails but they have Python, Node.js, React, React, and HTML experts on hand.

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

    Location
    Encinitas, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $10,000 - $25,000

    Fifty and Fifty Services

    • Digital Services
    • Branding
    • Digital Strategy
    • Design Services
    • Creative Services
    • Web Design
    • Digital Marketing
    • SEO
    • Email Marketing
    • Business Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • UNEP
    • United Way
    • Biolite
    • Lifestraw
    • San Diego Foundation
    • Curebound
    • Red Cross
    • Balboa Park
    • National University
    Data sourced from the agency's DesignRush profile
  • Lukasa is a next-gen consulting partner helping organizations transform through data modernization,

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

    Location
    Los Angeles, California
    Number of Employees
    Under 49

    Lukasa Services

    • Business Consulting
    • Software Development
    • AI Development
    • VR/AR
    • ERP Consulting
    • CRM Consulting
    • Big Data Analytics
    • ECM Consulting
    • Web Development
    • eCommerce Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Nike
    • Capital One
    • Mattel
    Data sourced from the agency's DesignRush profile

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