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.

Designli
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.Build software people actually pay for.
Designli is a web and custom software development agency with 200+ product launches, building web apps, SaaS platforms, and cross-platform products in React Native for clients including Michelin, Hearst, and EarthLink. AI-empowered teams deliver features up to 3x faster. Best suited for non-technical SaaS...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- Web Development
- Web Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $85/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 17 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDesignli Services
Data sourced from the agency's DesignRush profileGoodwill Earthlink Rotary State of South Carolina Secur.Space Grappos Michelin Accel Entertainment Millennium Parking Garages
Designli Reviews & Testimonials
Mobile App Development Review from Anonymous
Designli delivered a high-quality prototype on a tight timeline. The team was responsive to feedback, met every deadline, stayed within budget, and quickly adapted to requested changes. Their expertise in app design and development was evident throughout the project and left a strong impression.
AI UI/UX Design Review from Anonymous
Designli produced a complete, functional Figma prototype for our solution. They communicated clearly through virtual meetings and stood out for their strong process, gathering feedback from multiple stakeholders and delivering on schedule. Overall, we were very impressed with their work.
AI UI/UX Design Review from Anonymous
Designli delivered Figma wireframes that were both well-crafted and well-received by our team. The designs were clean, intuitive, and elegant, reflecting strong design intuition. Throughout the process, the team stayed organized, communicated clearly via Basecamp, and delivered everything on time.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsProduct Teams On Demand
Right Tail provides a high-performance Product Software Development and IT Staff Augmentation team built for speed, precision, and outcomes. We partner with startups, scale-ups, and enterprise technology companies to design, build, and scale world-class digital products...
Top Services:
- Staff Augmentation
- Software Development
- Mobile App Development
- AI Development
- Blockchain
- Show more
- Location
- San Francisco, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 14 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsRight Tail Services
Data sourced from the agency's DesignRush profileChia Permuto Capital Albin AI Pent AI Saudi Aramco
Right Tail Reviews & Testimonials

Software Development Review from Mansoor Khan
I am very impressed with the software development services provided by this company. Their team is technically proficient and delivered a high-quality, scalable product that met all our requirements. The code is clean, and the final result exceeded our expectations. Highly recommended for any complex development needs.

Web Design Review from John Fitzpatrick
Right Tail delivered a professional and visually appealing website that aligned perfectly with our brand and business goals. Their team focused on modern design, responsive layouts, and smooth user navigation. Communication throughout the project was clear, and they remained responsive to feedback. The final website performs well across both desktop and mobile devices. Overall, Right Tail provided a reliable and high-quality web design experience.

Software Testing Review from Gohar Asadullah
Right Tail Corp built internal software development tools to automate our enterprise operations, and the experience was outstanding. Their team delivered efficient, well-structured solutions that significantly streamlined our processes. The quality of work, communication, and professionalism throughout the project was exceptional. Highly recommended for any company looking for reliable development partners.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
StraightFire Web Design and Digital Marketing
Award WinnerRecipient of a Best Design Award for outstanding work.Web Design | Development | Marketing
Our clients achieve conversions not just because of their website's stunning visuals, but also due to its SEO-optimized content and captivating videos, drone footage, and photography. We strategically craft everything with unforgettable programming and an intuitive user interface...
Top Services:
- Web Design
- Web Development
- WordPress Website Design
- Branding
- Logo Design
- Show more
- Location
- San Diego, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $120/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsStraightFire Web Design and Digital Marketing Services
Data sourced from the agency's DesignRush profileRady Children's UC San Diego AMN Healthcare Oracle SDSU Pizza Hut Sears Union Bank Websense ESET
StraightFire Web Design and Digital Marketing Reviews & Testimonials

Marketing Review from Judy Minich
Working with StraightFire has been a fantastic experience. They consistently go the extra mile, bringing fresh ideas and valuable perspectives to our marketing and advertising projects without increasing the budget. Their productivity, expertise, and commitment to adding value make them an exceptional partner.

Graphic Design Review from Ela Whitten
I've worked with StraightFire for over fifteen years, and their outstanding organizational skills have been essential in meeting our tight project deadlines. Their consistency, expertise, and high-quality work always stand out, and their valuable marketing and graphic design insights make them a trusted partner.

Digital Marketing Review from Roz Oserin
We recently hired Straight Fire Marketing to revamp our website and refocus our Adwords campaign in order to gain more conversions from our website at Nainsook Framing + Art. It's been a little over a month and we are already seeing more leads. We're excited about the potential growth of our company. We would highly recommend Straight Fire Marketing.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsMarketing Agency That Blends Creative Branding With Emotional Advertising.
Sagon-Phior is a full-service creative agency specializing in emotional marketing and brand growth...
Top Services:
- Digital Marketing
- Web Design
- Package Design
- SEO
- Design Services
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 12 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSagon-Phior Services
Data sourced from the agency's DesignRush profileLumineux Oral Care Tactical Back Office Two Rodeo Drive GRAPHISOFT TechMD Rolls-Royce Inogen Lamborghini Paperclip Searchable Encryption Porsche
Sagon-Phior Reviews & Testimonials
Leslie Gibbs's Review Sourced from Google
I have had the pleasure of working with Glenn and his team many times over the last 6 years. As a strategic marketing consultant, having a reliable, strategic and affordable creative partner is critical. Sagon-Phior is my go-to for clients looking for a brand launch, refresh or just high quality design.
James Colford's Review Sourced from Google
This review has been a longtime coming.I have had the pleasure of working with both Rio and more recently Glenn on countless branding and marketing projects for financial services, healthcare and technology clients. Every time I bring them onto a project, they feel like an extension of both my team and the client. To them its more than just another project.Because of that, they're my go-to creative partners any time I need to explore a new brand direction with a client or need additional expertise on strategic marketing execution. They have decades of industry experience and produce quality creative.I think they're a good fit if you're looking to reach your audience on a deeper level and create a long lasting impression with your customer base.
Renee Tuzee's Review Sourced from Google
Glenn Sagon and Rio Phior are the best at helping clients uncover insights that lead to great marketing strategy, branding and advertising. I've been in the industry for 30+ years, and have worked with many talented agencies in my time, but Sagon-Phior goes above and beyond to ensure your business reaches its targets with precision, efficiency and creativity leading to high impact results. I can't say enough wonderful things about them and their team. If you want to grow your business, call them!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsMarketing For Digital Natives
Grazitti Interactive, a global leader in digital innovation, offering AI-driven solutions to drive customer success. We specialize in Salesforce, marketing automation, analytics, and more, partnering with industry giants to deliver results-oriented solutions for clients...
Top Services:
- Graphic Design
- Video Production
- Web Design
- Web Development
- Digital Marketing
- Show more
- Location
- Mountain View, California
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 11 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsGrazitti Interactive Services
Data sourced from the agency's DesignRush profileAwid Biogen MA, Inc Bulamu Healthcare International Calypso CBR Systems Inc (AMAG Pharmaceuticals) Connexity UK Limited Convert Digital Devex Didax Inc, Evoke Group LLC
Grazitti Interactive Reviews & Testimonials

Email Marketing Review from Rida Khan
This is the second company I've worked with Grazitti at and both experiences have been positive. Their team is able to turn around our requests very quickly and has provided good best practices from their work with other clients. I'd recommend them for the Marketing services.

Web Design Review from Patricia Lughezzani
Grazitti and Marketo Support have successfully partnered to roll out rich functionality and support Portal. Beyond core development skills to implement business functionally in SFDC Service Cloud and Customer Community, the Grazitti team has been a valued contributor to recommend technology such as Solr text search, workflow optimizations, and web creative design.

Digital Marketing Review from David Skyberg
Right from start the Grazitti team gave us the confidence that we do not need to have a plan B. Once things started rolling – they were able to accommodate a number of requirements that were made by the operating teams within the timeframe.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe Are Solving the Most Difficult Technology Challenges of Digital Transformation for Companies.
Our fields of expertise: software development, mobile app development, web development, virtual reality development, app development, app modernization and optimization services, DevOps consulting services, software testing...
Top Services:
- Software Development
- Mobile App Development
- IoT
- AI Development
- VR/AR
- Show more
- Location
- Palo Alto, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsLitslink Services
Data sourced from the agency's DesignRush profileMush Wow-How Studio Toolook Zero
Litslink Reviews & Testimonials

AI Development Review from EyĂ¼p Tekece
We run a few e-commerce brands on markets where there are not much analytical tools to plan launch of new products. Building a few agents to close the gap and let us launch new products more predictably way.
Andrij Chornejko's Review Sourced from Google
The avatar pronunciation tool they built is mad. TTS with emotion and lip-sync so learners can actually see how to shape their mouths for English sounds. The avatar’s facial expressions carry the tone—it’s not just a flapping mouth. Our language students retention jumped 30%. No cap these folks understand the little things.
Mr Garry's Review Sourced from Google
We brought Litslink in to build RIV — a GPT-powered AI task planning assistant for our product management team. Before the engagement, our PMs were spending 30–45 minutes per request manually rewriting briefs into Jira tickets, and risk blind spots kept surfacing after deadlines had already slipped.Litslink designed a three-pipeline AI system covering task decomposition, risk prediction, and named entity extraction — all integrated directly with our existing PostgreSQL stack and Jira workflow. The NER layer now auto-fills 90%+ of date, tag, and assignee fields, which alone eliminated hours of repetitive copy-pasting across Slack, Notion, and Jira.The results were measurable: task decomposition is now 60% faster, and each PM recovers roughly 8 hours per week. The Scrum-based delivery was transparent throughout — two-week sprint demos surfaced edge cases early, and the team iterated quickly based on real PM inputs.Delivered on schedule and within budget. Post-launch support and prompt refinements have been proactive. Solid technical partner for AI-driven workflow automation.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews#1 Product Strategy, UX Audit, UX Design
Product design & marketing experts driving growth. Founded in 2013, Wandr is an award-winning Product strategy & UX/UI design agency...
Top Services:
- Digital Services
- Design Services
- Product Design
- Digital Strategy
- UI/UX Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsWANDR Services
Data sourced from the agency's DesignRush profileWWF US Air Force Tenable Synchrony Bank StoryFire Smar7 Apps Samsung Poshmark Partner.ly Loop Commerce
WANDR Reviews & Testimonials
Steven H's Review Sourced from Google
A dynamic, adaptable, and consistently excellent team of Product and Design pros that tackled every problem we've thrown at them. I cannot wait to work with them again.
Till Helge GroĂŸ's Review Sourced from Google
Working with Jinny and her team at Wandr has been a true pleasure.They were able to take our incredibly rough design notes and turn it into something beautiful. We never would have imagined would actually be possibleWe love the website tremendously and I'm confident that the website itself has brought us a lot of new business.I highly highly recommend anyone who's looking for a beautiful website to work with Jinny and her team. In fact, I've already recommended numerous friends to her.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsDeveloping 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
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAppingine Services
Data sourced from the agency's DesignRush profileAldi Gousto Smart News Fitvate
Appingine Reviews & Testimonials
David Dorough's Review Sourced from Google
I read reviews of almost 100 companies and spoke with reps from 5 before finally going with Appingine for my first app. I'm sure you can pay more for less quality from a different company but why would you? They were easy to work with and quick to respond to questions. They split the charges by stage of development like every professional company should.I needed to make several changes during development and the cost was reasonable. Anthony was awesome and helped me along every step of the way. Apple has more stringent requirements than Google and Appingine was able to get the app published on both stores. Looking forward to more projects with them. Once again, don't pay more for less, go with Appingine!
njoku cornelius chibuike's Review Sourced from Google
I highly recommend Appingine. The company showed high level of professionalism and optimum customer care.the pricing for my project was very decent.the communication during my project was consistent and fruitful.the duration of the project was shorter than i expected. Am so glad the product i got was exactly what i had in mind before going into business with Appingine. Thank you Steven and Jonathan, Great team players, you guys made it happen.am looking forward to doing more business with you and your company.
Megan Miller's Review Sourced from Google
Appingine's team is passionate and smart, always on the cutting edge of their field. Compatibility and fluid project management were the focal points of success in this partnership. Appingine is complimented for bringing strong strategic guidance and design expertise to the table.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsEmpower Your Business With Custom Software, AI, & Nearshore Talent Solutions
Bluelight is a U.S.-headquartered nearshore software development consultancy. Bluelight provides top-tier IT talent from Latin America (and onshore) who are fluent in English, work U.S. business hours, and serve as a cost-effective alternative to U.S.-based hires...
Top Services:
- Software Development
- Software Testing
- AI Development
- Mobile App Development
- Staff Augmentation
- Show more
- Location
- Sacramento, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsBluelight Services
Data sourced from the agency's DesignRush profileAWS Google Cloud Salesforce GoDaddy Deel MGM Resorts International Uber LendSwift Simpleview BMG360
Bluelight Reviews & Testimonials
Nathan Dyer's Review Sourced from Google
As a result of our engagement with Bluelight Consulting, we are saving hours of developer time every week. We are able to deploy several times a day to multiple environments and going forward we’re going to better position ourselves as a company that offers tools that provide timely solutions for our internal users, which is what we pride ourselves on. There has been a tremendous lasting effect without a doubt. They meet set timelines within budget, keep clear communication lines, and are more than ready to address any emerging issues in a timely fashion. You can sense a sincere desire to meet our needs to the letter. It makes a huge difference. I must say we’ve worked with other vendors before where their ego was much bigger than working with us.
Emily Lien's Review Sourced from Google
Our cooperation with Bluelight Consulting worked out very well. Their experts find the right solutions for various problems, they work quickly, provide the right people for each job, and offer valuable suggestions on how to improve the product. Their flexibility and ability to adjust to our situation was the most important factor for the success of the project.
David McCulloh's Review Sourced from Google
After a thorough search for the best DevOps-as-a-Service companies in the US, and based on testimonials from past clients on their website, we felt the Bluelight Consulting team was the right choice to collaborate with on this project. And from the moment we booked a discovery call with them, we knew we had made the right choice. Thank you Bluelight Consulting!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsBuilding brands that lead, from coast to coast.
LANY is a strategic PR, digital marketing, and web agency...
Top Services:
- Public Relations
- Branding
- Digital Services
- Web Design
- Web Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 7 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsThe LANY Group Services
Data sourced from the agency's DesignRush profileeCommerce Industry Lifestyle Industry Publishing Industry
Innovative Web & Custom Soft Development Solutions
DESIGN, DEVELOP, DEPLOY!!! The PRIME is a team of highly skilled and experienced professionals in the field of Web Development and Custom Software Development PRIME means - Punctuality, Quickness, Honesty and Professional work! WE HAVE GOT YOU COVERED!!!...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- Web Design
- UI/UX Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPRIME IT Services
Data sourced from the agency's DesignRush profileStichting International Youth Bridges Global Business Vectrium SABEL - The Conscious Glitterati 90MinFoot Apex Law Group
Build Better Software.
Tech.us is an AI software solutions company that provides AI development, mobile applications, cloud consulting, and IT services. We focus on creating secure, scalable, and innovative technologies that support businesses in their digital journey...
Top Services:
- AI Development
- Mobile App Development
- IT Services
- Software Testing
- Cybersecurity
- Show more
- Location
- San Jose, California
- Number of Employees
- 100 - 249
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTech.us, Inc Services
Data sourced from the agency's DesignRush profileIvionics OpenGym IDP Consulting Zone Trader PhD, LLC
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