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.
RNO1
VerifiedVerified by the DesignRush team for authenticity and credibility.Award WinnerRecipient of a Best Design Award for outstanding work.RNO1 | Global Branding, Web Design & GEO Agency | $10B+ in Market Growth
RNO1 is a global branding and digital growth agency for modern brands that refuse to play it safe. We design Radical Digital Experiences that don't just look good: they drive real growth...
Top Services:
- UI/UX Design
- Web Design
- Mobile App Development
- Web Development
- Branding
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Portfolios Count
- 10 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsRNO1 Services
Data sourced from the agency's DesignRush profileAirbnb Microsoft Rezolve Dentsu Cox Media Group Ericsson Interos Amount Disney BMW
RNO1 Reviews & Testimonials
UI/UX Design Review from Neil Serebryany
I had the pleasure of working with RNO1 on a web transformation project in CalypsoAI and couldn't be happier. Right from the start, it was clear that they had a very skilled workforce, that had data architects as well as UX designers on board.They gave us a first implementation of your platform to work before your deadline and this demonstrates that they are conscious of time and the quality they want to offer. The look and feel design talents of RN01 are on par with the finest User Interface design and UX skills, moreover, the backend programming is also excellent.Most noticeable was their ability to fit into our working environment and improve the efficiency of our team while advancing the projects. Well done and organized they ensured the entire period was smooth and productive.As for web design and CMS development, I have no reservations in recommending RN01. They can really be considered as an innovation partner.
UI/UX Design Review from DANIEL HARMAN
The entire team at RNO1 was instrumental to the successful launch of our Product Management Company. Through the team’s guidance, design direction, and ease of working them as a Global Branding & Digital Agency.
Brand Strategy Review from Martin Alcala Rubi
RNO1 did an amazing job as a value based partner...showing great professionalism and working within tight deadlines. The entire team quickly understood our business needs.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWith 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
DD.NYC®
VerifiedVerified by the DesignRush team for authenticity and credibility.AI LeaderRecognized for strong visibility across AI-powered search and answer engines.+1Award WinnerRecipient of a Best Design Award for outstanding work.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
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDD.NYC® Services
Data sourced from the agency's DesignRush profileForbes Scholastic Dupont Havas Wallmart CyberYachts Chef Antoine Lours 1010 Wilshire @globalnewyorker The Arts Building
DD.NYC® Reviews & Testimonials
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.
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)
Web Design Review from Andrew Fitzgerald
Great project all around!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsKaizen 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
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
Dreamers Inc.
VerifiedVerified by the DesignRush team for authenticity and credibility.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
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
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
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
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