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

9 Companies - Rankings updated: August 26, 2026

DesignRush evaluates each agency using expert assessment and client feedback to inform your choices. Some featured agencies have paid placements.

United States × California ×
  • Female-Led, Strategy-Driven, Boutique Digital Marketing Agency.

    SLTC is an award-winning, female-led, strategy-driven growth agency that excels in active listening. We partner with consumer product brands that genuinely care about purpose and growth, ensuring that their voices shape our strategies every step of the way...

    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $300/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    16 Projects Listed

    SLT Consulting Services

    • Digital Marketing
    • PPC
    • SEO
    • Branding
    • Email Marketing
    • Social Media Marketing
    • eCommerce
    • Content Marketing
    • Web Design
    • eCommerce Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Peloton
    • Warby Parker
    • The Drop
    • fiverr
    • elix
    • The Dogist
    • Love|Labels
    • Erica Weiner
    • Pura Vida Naturals
    • Clean Beauty Lab
    Data sourced from the agency's DesignRush profile

    SLT Consulting Reviews & Testimonials

    • Yonat Burlin
      Yonat Burlin Director of Business Management at Yonat Burlin And.Co
      5.0

      Social Media Marketing Review from Yonat Burlin

      SLT's service was really great, they are easy to communicate with, they are really on top of things and are great at managing an ongoing project and they worked hard to get the content right.

    • Tiffany Haynes
      Tiffany Haynes Founder & CEO at Beyond Routine Planner
      5.0

      Social Media Marketing Review from Tiffany Haynes

      I tell you what, you have a lifelong client with me! You were responsive, professional, knowledgeable, and finally an ads consultant that can deliver on what they promise. I'll see you on the next project!

    • Julie Vails
      Julie Vails Co-Founder at The Mahalani
      5.0

      Social Media Marketing Review from Julie Vails

      Exceptional service + support for what proved to be a tough service to market. Patient + knowledgeable, kept us informed at every step, capable of making intelligent decisions at turning points, diligent + thoughtful. Unmiffed by challenges and easily pivoted when we changed course. Awesome experience. I didn't have a clue on what I should be doing, but now I have a plan and a marketing starting point.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Innovative design and development

    Mobikasa is a full-service global digital agency headquartered in Miami, delivering high-performance web, mobile, and e-commerce solutions since 2011. We help brands scale through custom apps, scalable storefronts, and data-driven marketing, blending strategy, design, and technology...

    Location
    Los Angeles, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    13 Projects Listed

    Mobikasa Services

    • Web Development
    • eCommerce Development
    • Web Design
    • Mobile App Development
    • Digital Marketing
    • PPC
    • SEO
    • Social Media Marketing
    • Email Marketing
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • 1-800 flowers.com
    • Nokia
    • Mavi
    • 32 Degrees
    • KnowNow Health App
    • Versace
    • Maurice Lacroix
    • Car Dekho
    • Limeroad
    • Florists
    Data sourced from the agency's DesignRush profile

    Mobikasa Reviews & Testimonials

    • Cyntoria Williams
      Cyntoria Williams Associate Director of Sales and New Business Development at Mielle Organics
      5.0

      eCommerce Development Review from Cyntoria Williams

      Mobikasa helped Mielle Organics to enhance their ecommerce platform, continuously refining the application and incorporating innovative features to drive higher conversion rates. Mobikasa's expertise and dedication to the project helped Mielle Organics achieve their ecommerce goals and maintain their competitive edge.

    • Jamie Mucario
      Jamie Mucario Review from Google
      5.0

      Jamie Mucario's Review Sourced from Google

      Mobikasa has been a great partner for our e-commerce brands and honestly feels like part of our own team. They really know their way around Shopify, SEO, and site performance, and they’re always quick to jump in when we need help. From improving how our sites run to helping us better understand our data and visibility, their work has made a real difference. Communication is easy and straightforward, deadlines are met, and they’re great at thinking through problems and offering solutions instead of just fixes. It’s been a genuinely positive experience working with them, and they’re a team we truly trust and rely on.

    • Georga West
      Georga West Review from Google
      5.0

      Georga West's Review Sourced from Google

      Mobikasa are always very responsive and quick to look into any queries or issues we may have. They explore multiple avenues to find solutions to our request and have great knowledge across Shopify and plug-ins to help us to achieve our goals.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Leading Web and Mobile App Development Company in India, USA, & AUS

    Techcronus Business Solutions is a global provider of enterprise business solutions and modern-day technology services...

    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Portfolios Count
    14 Projects Listed

    Techcronus Business Solutions Pvt. Ltd. Services

    • Mobile App Development
    • Web Development
    • PPC
    • SEO
    • UI/UX Design
    • Software Development
    • CRM Consulting
    • ERP Consulting
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • BTCX
    • Ferrero
    • IKEA
    • Jumeirah
    • Lavazza
    • Starbucks
    • Taco Bell
    • Unilever
    Data sourced from the agency's DesignRush profile

    Techcronus Business Solutions Pvt. Ltd. Reviews & Testimonials

    • Sophia Bendz
      Sophia Bendz CEO at Neilson Tech Solutions
      5.0

      Web Development Review from Sophia Bendz

      Its a pleasure to connect and collaborate with Techcronus, the whole team is fantastic to work with especially the CEO who is a star performer, the company is providing technical advise to my tech aided start up. I am glad that I got in touch with Techcronus and wish to have a long lasting business collaboration with them. Always to the point and full of tech ideas.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Invested in Your Success

    Tepia is a software company founded in 2012 with over 30 years of experience in web and mobile app development. We are a passionate and agile team of developers, designers, and strategists who are consistently pushing the boundaries of technology...

    Location
    Costa Mesa, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    2 Projects Listed

    Tepia Services

    • Mobile App Development
    • eCommerce Development
    • Software Testing
    • Software Development
    • UI/UX Design
    • Web Design
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Marugame Udon
    • MicroVention
    • Henry Schein
    • Meta
    • Irvine Company
    • Participant Media
    • Pujol's Foundation
    • MoodMe
    • RELI Solutions Inc.
    • SleepCenter of Nevada
    Data sourced from the agency's DesignRush profile

    Tepia Reviews & Testimonials

    • Dr. Lesley Kirkpatrick, MD
      Dr. Lesley Kirkpatrick, MD Founder at mindcomb
      5.0

      Mobile App Development Review from Dr. Lesley Kirkpatrick, MD

      I had a great experience working with Tepia. Abraham, the Founder and CEO, was available, helpful, and actively involved throughout every stage of the process. Kimmy, my assigned project manager, was organized, responsive, and clear in her communication from start to finish. They anticipated potential obstacles before they became issues and approached everything with a thoughtful, solutions-oriented mindset. The team was consistently proactive, professional, and transparent. I truly appreciated their structure and ability to keep things moving smoothly. I would highly recommend working with Tepia.

    • Robert Beknazarian
      Robert Beknazarian President at RELI - Windows & Doors
      5.0

      Mobile App Development Review from Robert Beknazarian

      Working with Tepia Co has been an exceptional experience from start to finish. They played a critical role in developing our mobile app for RELI, and I can confidently say they exceeded our expectations on every level From day one, Tepia demonstrated a deep understanding of both the technical and business sides of app development. They didnt just execute tasks they asked the right questions, challenged assumptions when needed, and helped us think through complex workflows in a way that improved the final product. Their team truly operates as a strategic partner, not just a development vendor The communication was excellent throughout the entire process. We always knew where things stood, timelines were clear, and any issues or changes were handled proactively and transparently. For a project as complex as ours involving pricing logic, user flows, financing options, compliance considerations, and scalability this level of clarity and responsiveness made a huge difference. What really stood out was Tepias attention to detail and commitment to quality. The app they helped build is stable, clean, intuitive, and built with long-term growth in mind. They were thoughtful about architecture, performance, and future enhancements, which is critical for a company like ours that plans to scale aggressively. They were also extremely flexible and patient as our requirements evolved (which happens in real-world startups). Instead of pushing back, they collaborated with us to find smart, efficient solutions that aligned with our vision and budget. If youre a founder or business owner looking for a team that: Truly understands mobile app development Communicates clearly and consistently Thinks strategically, not just technically Delivers high-quality, scalable work I highly recommend Tepia Co without hesitation. They have been a trusted partner in bringing RELI to life, and we look forward to continuing to work with them as we grow

    • Ara Agopian
      Ara Agopian CEO at Solar Insure
      5.0

      Mobile App Development Review from Ara Agopian

      I had a great experience with Tepia on our mobile app development. The project was managed very well and finished on time. Thank you Tepia!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Digital Solutions With Personalized Service.

    Clap Creative is your next door tech firm in Los Angeles offering full-range web services under one roof. An experienced team of web professionals works to create custom internet solutions to meet your business goals. And when we say partners, we mean it!...

    Location
    Calabasas, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000

    Clap Creative Services

    • Web Design
    • Web Development
    • Mobile App Development
    • Graphic Design
    • eCommerce
    • eCommerce Development
    • SEO
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Cricket All Stars
    • Beach Lifeguard
    • Urban Home Shop
    • Tile Circle
    • Newsbase Marketing
    • Doocare
    • Trusty tails
    • Fun Costume Shop
    • Bankrupt Films
    • Rylstone
    Data sourced from the agency's DesignRush profile

    Clap Creative Reviews & Testimonials

    • Jason Dunbar
      Jason Dunbar Review from Google
      5.0

      Jason Dunbar's Review Sourced from Google

      DK and the Clap Creative crew are just amazing. The responsiveness and turnaround are unimaginably fast. We have been with them for about a year or so now and they have made everything so simple for us. If you are looking for a solid company to help with your site maintenance, this is the one to go with!

    • Stephanie Yee
      Stephanie Yee Review from Google
      5.0

      Stephanie Yee's Review Sourced from Google

      Had the pleasure of working with DK at Clap Creative. We were very pleased with his responsiveness and ability to meet our requirements. We were very satisfied with his work and wish we discovered Clap Creative a long time ago to help us out. Highly skilled team, great service and affordable prices! We highly recommend Clap Creative and hope we can continue to work together.

    • Jennifer Sorcher
      Jennifer Sorcher Review from Google
      5.0

      Jennifer Sorcher's Review Sourced from Google

      I have had such an amazing experience while working with Clap Creative! DK has been helping us for a while now, and he has built our site so beautifully! Not only is he quick to answer and eager to get the job done, but he is also informative and respectful as well! You can tell that DK and his team know what they're doing, and I would recommend them to anyone and everyone! Whenever we have a small site glitch or SEO issue, they fix it within the hour! A very much needed quality in any web team! To sum it up, Clap Creative is one of the best web teams I have ever worked with!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Elevate Your People, Process, and Products.

    TDF (The Development Factory) is a Los Angeles based product and technology consultancy that empowers companies to design, build, and deliver software more effectively. By upskilling teams, embedding expert interim product leadership, and offering seamless augmentation services, TDF enhances clients internal...

    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    3 Projects Listed

    The Development Factory Services

    • Software Development
    • UI/UX Design
    • Web Development
    • IoT
    • Mobile App Development
    • Big Data Analytics
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Givsum
    • Integral Healthcare Solutions
    • GetHelp
    • California Almonds
    Data sourced from the agency's DesignRush profile

    The Development Factory Reviews & Testimonials

    • Tony Greco
      Tony Greco Review from Google
      5.0

      Tony Greco's Review Sourced from Google

      TDF provided us with product management, development, and strategic consultation. We started to build the product with an individual and had initial wireframes and mock-ups, but the project quickly grew larger than an individual person could handle. TDF evaluated what we had and gave us feedback, then created a plan to replace and fix what had already been done. They started with extensive customer development-- something we missed the first time around-- so their new wireframes and plans were based on what our customers actually wanted. Then, they executed the plan. In addition to the development work, they also took care of logo and design work. They used Amazon Web Services for our platform. We have multiple features such as an API, database, and an administration tool for our own interface. We have a provider tool for facilities to update their data within the database. People can find resources on our web page, web application, and an iOS and Android app. We continue to work with them and have found it more effective and efficient to use them as a virtual outsourced department.

    • Tom Goddard
      Tom Goddard Review from Google
      5.0

      Tom Goddard's Review Sourced from Google

      We are a consulting firm that specializes in working with healthcare organizations who are seeking to become accredited, stay accredited, or are working with particular healthcare legal compliance issues that we specialize in. The management of a typical accreditation process is complex for both the applicants and consultants providing them with help, so we wanted technology to help simplify and clarify that process. The Development Factory developed and designed two important pieces of software for us that have gone through multiple iterations over the years. The most important is an online project management platform that has all of our resources in one place and allows us to have secure communications with our clients and exchange documents and feedback important to the accreditation process. The platform also provides dashboards for our clients that allow clients to track their process and see how they're doing based on our scoring system that scores any documentation that will be sent to accreditation organizations. The second piece of software TDF built is a training program called AccrediTrain. We had a training software before, but they built a new self-service version that is completely automated, allowing a client to schedule a training for their employees without having to involve any of my staff. As a result of the work TDF did for our firm, we are now able to handle a larger number of clients with the same number of staff, helping us to increase our revenues by a factor of four. Beyond that, the reactions to our platforms have been outstanding. Just recently a new client was having her first experience with Goldfinch and she said it was just amazing. Another client of ours is a competitor and asked us for help on a project. This is an organization that has a particularly sophisticated knowledge about the accreditation process, and their CEO and president was very impressed by our software platforms. They really listened to our description of what we do and how we do it and then turned that into software that quite beautifully captures what we do and how we do it. They clearly care about us and our satisfaction.

    • Shawn Wehan
      Shawn Wehan Review from Google
      5.0

      Shawn Wehan's Review Sourced from Google

      The Development Factory has been fundamental to our growth and overall development of the Givsum platform. They’ve eliminated 95% of bugs and improved the overall user experience. The team has been a great long-term collaborative partner for coding and UX/UI. High-quality designs and added features have increased the site’s potential. Highly recommended!

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

    EPRIZ 7 helps restaurants, healthcare providers, furniture stores, startups, local businesses, and small business to medium-sized companies grow through digital advertising, websites, and connected TV advertising. Marketing services in Los Angeles, including SEO, social media, and branding...

    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    3 Projects Listed

    EPRIZ 7, LLC Services

    • Digital Marketing
    • Social Media Marketing
    • SEO
    • Advertising
    • PPC
    • Branding
    • Package Design
    • Web Design
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Altece Design
    • Amparo's Home Furniture
    • Stereo1
    Data sourced from the agency's DesignRush profile
  • A WooCommerce Development Agency

    CoSpark, a leading WooCommerce development agency with 15+ years of experience, specializes in crafting exceptional eCommerce solutions, generating over $300 million in annual revenue for clients. Renowned for full-stack development, customizations, and ongoing maintenance...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    5 Projects Listed

    CoSpark Services

    • eCommerce Development
    • Web Development
    • WordPress Website Design
    • Software Development
    • Web Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Heggerty
    • Brooklyn Robot Foundry
    • Mike's Organic
    Data sourced from the agency's DesignRush profile

    CoSpark Reviews & Testimonials

    • Cynthia Astle
      Cynthia Astle Review from Google
      5.0

      Cynthia Astle's Review Sourced from Google

      CoSpark was a true lifesaver for our online journal with a bug in its signup code. Heral Patel was prompt, courteous, helpful and economical. The signup now works great! We will be using CoSpark again.

    • Jonathan Lopez
      Jonathan Lopez Review from Google
      5.0

      Jonathan Lopez's Review Sourced from Google

      A few years ago, I reached out to Heral for custom Mailchimp newsletter development based on AnnexCore's great online reviews in addition to their Mailchimp expert accreditation. He was a pleasure to work with, very professional, and even finished the job early with no revisions necessary. I refreshed our newsletter a couple weeks ago and then contacted Heral to execute the project. He responded to me right away, started the task immediately and completed the project ahead of schedule once again. This design was slightly more complex than the previous one, so Heral consulted me on a few issues to remedy a minor issue I had with the design. It was another great experience working with Heral and Annexcore. I recommend AnnexCore and Heral for any email marketing consulting and will definitely be using them in the future.

    • Support Contact
      Support Contact Review from Google
      5.0

      Support Contact's Review Sourced from Google

      AnnexCore was fantastic to work with and produced an outstanding marketing campaign from start to finish. The service and response time was instrumental in completing our project on time considering our tight time frame. I will be collaborating in the future with AnnexCore and recommend them strongly. Pat M Red Capture

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Building brands that lead, from coast to coast.

    LANY is a strategic PR, digital marketing, and web agency...

    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    7 Projects Listed

    The LANY Group Services

    • Public Relations
    • Branding
    • Digital Services
    • Web Design
    • Web Development
    • WordPress Website Design
    • Digital Marketing
    • PPC
    • eCommerce
    • Graphic Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • eCommerce Industry
    • Lifestyle Industry
    • Publishing Industry
    Data sourced from the agency's DesignRush profile

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