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.

United States × California ×
  • Azumo

    VerifiedVerified by the DesignRush team for authenticity and credibility.

    Build Intelligent Apps for Web, Mobile, Data, AI and Cloud

    Azumo is a SOC 2-certified web and software development company founded in 2016, delivering AI-augmented dedicated teams across React, Node.js, Python, and cloud stacks for clients including Meta, Twitter, Discovery Channel, and Omnicom. Well-suited for startups and enterprises needing nearshore development...

    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    9 Projects Listed

    Azumo Services

    • AI Development
    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Big Data Analytics
    • DevOps Consulting
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Discovery Channel
    • Meta
    • Zynga
    • Jostens
    • Assembled Brands
    • NGL
    • NCSoft
    • Twitter
    • Horoscope.com
    • Bento
    Data sourced from the agency's DesignRush profile

    Azumo Reviews & Testimonials

    • Michael S.
      Michael S. Director at Software Development Company
      5.0

      Software Development Review from Michael S.

      We selected Azumo to develop our software. We transitioned from another development company, so Azumo was initially responsible for migrating our existing code and environments. We are currently still working with Azumo as our nearshore software development team on adding new items to our software.

    • Anonymous
      Anonymous CTO at Healthcare Company
      5.0

      UI/UX Design Review from Anonymous

      Azumo helped us migrate our existing UIs into a new framework, creating reusable components and the infrastructure needed for future development. The developer they assigned became a seamless part of our team, always punctual, responsive, and a great fit overall.

    • Anonymous
      Anonymous VP Product & Engineering at Sales & Mktg Software Company
      5.0

      Software Development Review from Anonymous

      Thanks to Azumo’s work, our product is now more scalable, optimized, and ready for a growing user base. Their team has managed the engagement effectively, keeping us updated and addressing any challenges along the way. We’ve appreciated their constant availability and proactive communication.

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

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

    AgileTech Services

    • Web Development
    • WordPress Website Design
    • UI/UX Design
    • eCommerce Development
    • Web Design
    • Software Development
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Clingme
    • Luxstay
    • Lian
    • Ferosh
    • Alosong
    • Stardary
    • Tizo
    • Jupviec
    Data sourced from the agency's DesignRush profile

    AgileTech Reviews & Testimonials

    • Noah Petraitis
      Noah Petraitis Project Manager at National Technologies (NTI)
      5.0

      Mobile App Development Review from Noah Petraitis

      AgileTech excelled in supporting our project from initial mock-ups through to the final delivery on the App Store, incorporating data analytics that we could easily share with our customers. The scope of work included mock-up creation, UI/UX design, interactive prototyping, app development, rigorous testing, and setting up a secure production environment on AWS, culminating in the apps release on both iOS and Android platforms.

    • Selva Jayaraman
      Selva Jayaraman Owner at Business Integra Inc
      5.0

      Software Development Review from Selva Jayaraman

      Working with AgileTech has been an amazing experience, especially when it comes to creating a personalized e-learning program for our IT services business. We were pleasantly surprised by how adaptable and scalable the platform developed by the AgileTech Team was. Their proficiency with user-friendly course administration and community participation technologies enabled us to provide a thorough instructional resource catered to our customers' particular requirements. The platform has greatly improved our operational efficiency, and we are amazed by its capacity to manage heavy traffic with ease and offer comprehensive reporting and analytics. The platform remained successful and user-friendly because of the team's dedication to continuous support and their quick response to criticism. For any organization looking to create innovative and reliable digital solutions, we wholeheartedly recommend AgileTech as a partner.

    • Preci Capiral
      Preci Capiral Owner at TechnoSphere, Inc.
      5.0

      Software Development Review from Preci Capiral

      AgileTech provided a superb Learning Management System (LMS) that creatively and precisely addressed the intricate needs of our organization. Within a scalable, completely customizable platform, the LMS made it possible to create comprehensive courses, administer student tests, engage the community, and obtain real-time data insights. AgileTech's modular and agile approach made sure that every component, from the user-friendly course builder to the sophisticated analytics and communication tools, was customized to meet our demands despite the difficulties of developing such a feature-rich system. In order to guarantee perfect scalability and zero downtime, even with high user concurrency, AgileTech used a potent tech stack that included PHP, React, and AWS. Their post-launch assistance, which included frequent training sessions and upgrades, gave our staff the means to fully use the LMS's potential. This project was a testament to AgileTech's technical skill, rapid deployment, and dedication, making them an outstanding choice for educational technology development.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Transforming Enterprises with AI Applications

    ThirdEye Data Transforms Enterprises with Data & AI Solutions & Services. ThirdEye Data leverages Artificial Intelligence & Data technologies to build AI applications for enterprises worldwide...

    Location
    San Jose, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    23 Projects Listed

    ThirdEye Data Services

    • AI Development
    • Big Data Analytics
    • Software Development
    • IT Services
    • Staff Augmentation
    • DevOps Consulting
    • Cloud Consulting
    • Mobile App Development
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Microsoft Corp
    • Walmart
    • AWS
    • SCE
    • XPERI
    • Texisle
    • Glastrosch
    • British Petroleum
    • CRC
    • Google
    Data sourced from the agency's DesignRush profile

    ThirdEye Data Reviews & Testimonials

    • Matt Singer
      Matt Singer CEO at Ecotrak
      5.0

      Big Data Analytics Review from Matt Singer

      ThirdEye helped analyzing data and recommending architecture for enhanced analytics. They understood our business needs really well and went above and beyond to deliver what we were looking for.

    • Kumar Mankala
      Kumar Mankala Former Advisor of the AI/ML Program and Products at SCE
      5.0

      Software Development Review from Kumar Mankala

      ThirdEye developed CV ML models to automate image quality assessment for Field Asset Inspection (part of Wildfire Mitigation Program). The team delivered the models in time, was able to adapt to changing requirements.

    • Erhan Erdem
      Erhan Erdem Review from Google
      1.0

      Erhan Erdem's Review Sourced from Google

      I did a voice study for them almost two months ago, still waiting for my payment. I contacted them multiple times and they don't even respond. What a joke.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Trusted IT Partner for SMBs & Enterprises Since 2001 | Dedicated Teams | Industry-Specific Solutions

    Altoros is a 350+ person strong IT consulting and development group. For over 20 years, we've been assisting Global 2000 organizations in getting software products to market faster and reducing the cost of R&D experiments to enable stable business growth...

    Location
    Pleasanton, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    12 Projects Listed

    Altoros Labs Services

    • Software Development
    • Mobile App Development
    • Web Design
    • Web Development
    • Staff Augmentation
    • Software Testing
    • AI Development
    • IoT
    • Cloud Consulting
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Siemens
    • Toyota
    • Hitachi
    • Huawei
    • Denso
    • LikeFolio
    • Dealflo
    • iFit
    • Walmart
    • EQ Bank
    Data sourced from the agency's DesignRush profile

    Altoros Labs Reviews & Testimonials

    • Daria Stolyar
      Daria Stolyar Manager at Custom Software Development Company
      5.0

      Software Development Review from Daria Stolyar

      We hired Altoros engineers as an essential extension of our client-facing internal teams. This was a tough decision because our reputation as a brand depends on the overall efficiency of our processes and we needed to make sure all risks are mitigated when it comes to delivery. Altoros has not let us down.Together with Altorosians we successfully deployed a number of tough and technologically complex projects on time. So our collaboration is certainly set to continue.

    • Victoria Lewis
      Victoria Lewis Director at Equine Affairs Ltd
      3.5

      Software Development Review from Victoria Lewis

      We enjoy working with our team, Roman Yurkin, Tatyana Kobzar, Svetlana Kalchanka and Tatiana Anop. They bring expertise and immense value to our business with each piece of work they complete. They are a major part of our business development and delivery.

    • Greg Lipper
      Greg Lipper Managing Director at Happi Pte Ltd
      5.0

      Ruby on Rails Review from Greg Lipper

      In my 30 years in the software business, I have never had as positive an experience with an outsourced development services provider as I have with Altoros. Each Altoros engineer we have worked with has been strong technically, estimated development times accurately, completed projects on time, and delivered code and projects with high quality. Beyond that, they have helped improve our thinking and approach with suggestions and ideas that were better than the spec of instructions we supplied.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Software & Mobile Application Development Company.

    Rushkar Technology Pvt. Ltd. is a premier software development company based in India, renowned for its commitment to delivering high-quality, timely, and cost-effective offshore software and mobile application solutions. At Rushkar, we prioritize long-term relationships and client satisfaction, ensuring that...

    Location
    Anaheim, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $12/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed

    Rushkar Technology Pvt. Ltd. Services

    • Software Development
    • Mobile App Development
    • Staff Augmentation
    • eCommerce Development
    • Web Development
    • Software Testing
    • AI Development
    • CRM Consulting
    • IoT
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Galgotta
    • PingZz
    • Homy
    Data sourced from the agency's DesignRush profile

    Rushkar Technology Pvt. Ltd. Reviews & Testimonials

    • Steve O'Brien
      Steve O'Brien CEO at NEW ICON
      5.0

      Software Development Review from Steve O'Brien

      Our software development project has received exceptional outcomes from Rushkar Technologies. Their devotion to deadlines, strong code quality, and agile technique have proven essential. We at New Icon value their successful use of Scrum methods and integration of CI/CD pipelines. Strongly advised for any purposes pertaining to advanced growth.

    • Aravind Kumar Thakur
      Aravind Kumar Thakur Deputy Manager at KEI INDUSTRIES LIMITED
      5.0

      Web Development Review from Aravind Kumar Thakur

      I am grateful for the chance this service has given me. I received good, friendly service from Rushkar Technology. They made sure that my specifications were satisfied by providing a multitude of design and formatting possibilities. They also gave access to all the data required to maintain the site's functionality. An amazing team offering a priceless service to the manufacturing of electrical and electronic.

    • Daniel Ari Feldmar
      Daniel Ari Feldmar Chief Operating Officer at Felbro Food Products, Inc
      5.0

      Mobile App Development Review from Daniel Ari Feldmar

      For our project on food manufacturing, we hired Rushkar. This was made possible by the agency's outstanding support throughout the project, which included proactive problem-solving, innovative solutions, and meticulous attention to detail. At first, reaching a consensus on project objectives was the biggest obstacle, but Rushkar swiftly made plan adjustments and engaged in open communication to address problems. Our business was greatly enhanced by its solution, which also improved consumer involvement. Rushkar continues to be a reliable partner for our upcoming initiatives, even though it might further improve its excellent work with faster reaction times and more service options.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • High-Level Technology for Small and Large Business.

    ALFTEK offers full-service network infrastructure, system administration, network security, software development and other managed IT services. What's more, the company also integrates robust software solutions with cloud-based SaaS, PaaS and IaaS platforms for website and social & blog design...

    Location
    Concord, California
    Number of Employees
    Under 49
    Portfolios Count
    4 Projects Listed

    ALFATEK Services

    • Software Development
    • Cybersecurity
    • IT Services
    • Managed Services
    • Web Design
    • IoT
    • Mobile App Development
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Consultary
    • iBookingVIP
    • MONXPERT
    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
  • 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
  • Your Digital Growth Partner

    Sadja WebSolutions is a digital agency focused on creating custom websites, mobile apps and digital marketing to grow brands online. We help companies around the world increase their online presence and ROI through design, development and online marketing...

    Location
    Torrance, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000

    Sadja WebSolutions Ltd Services

    • Web Design
    • Digital Marketing
    • Digital Strategy
    • Graphic Design
    • Logo Design
    • Package Design
    • SEO
    • eCommerce
    • Social Media Marketing
    • Content Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • DHL
    • Mint Home Ltd
    • Ecobank
    • Rawbank
    • Vodaphone
    Data sourced from the agency's DesignRush profile

    Sadja WebSolutions Ltd Reviews & Testimonials

    • Patricia Tendo
      Patricia Tendo Manager at Mint Home
      5.0

      Web Design Review from Patricia Tendo

      100% brilliant work again! Extremely highly recommended

    • Lavit Singh
      Lavit Singh Review from Google
      1.0

      Lavit Singh's Review Sourced from Google

      This company is completely fake and untrustworthy. I spent 150+ hours working on their website, but in the end, they refused to pay even a single penny.:warning: Warning to other freelancers: do not trust this client. They waste time, exploit efforts, and do not respect the work. Stay away to save your valuable time and energy.

    • Robert Zgozi
      Robert Zgozi Review from Google
      5.0

      Robert Zgozi's Review Sourced from Google

      Sadja Web-solutions are the best Web developers and Digital Marketing Company I have ever known. They professional with a lot of Experience I recommend they work.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • AI-First Engineering | Agentic AI | Product Engineering | Enterprise Software | Digital Transformati

    Appventurez is a global AI and digital transformation company specializing in custom software, mobile app, web, and enterprise application development. We build scalable technology solutions that help businesses innovate, automate, and grow...

    Location
    San Jose, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    8 Projects Listed

    Appventurez Mobitech Services

    • Mobile App Development
    • Web Development
    • Software Development
    • VR/AR
    • eCommerce Development
    • IoT
    • AI Development
    • CRM Consulting
    • Staff Augmentation
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • HOLCIM
    • Ever Friends AI
    • ENUNCIA.AI
    • Digishayak
    • Tattoo Planet
    • Electronica Finance Limited (EFL)
    • Ezipay
    • Melto
    • ZoĂ«s Kitchen
    • Adviceme
    Data sourced from the agency's DesignRush profile

    Appventurez Mobitech Reviews & Testimonials

    • Martin Larsen
      Martin Larsen Founder at Balloner i byen
      4.8

      WordPress Website Design Review from Martin Larsen

      Appventurez Mobitech is developing a customizable dashboard that allows users to track and manage shipments. They create backend panels and implement UI / UX designs provided by internal stakeholders.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • AI-driven custom software development for complex, high-growth industries.

    NEKLO is an international custom software development partner. Since 2008, weve specialized in building and scaling digital products for high-stakes industries, including Healthcare, Fintech, Energy, and Construction...

    Location
    Burlingame, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed

    NEKLO Services

    • AI Development
    • Software Development
    • Mobile App Development
    • Product Design
    • Software Testing
    • Staff Augmentation
    • Managed Services
    • IT Services
    • Big Data Analytics
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Lulu and Georgia
    • Raken
    • Planet Blue
    • Belleze
    • My1stYears
    • JustBeeKids
    • Complete Solar
    • Call Loop
    • Implentio
    • TeamDays
    Data sourced from the agency's DesignRush profile

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