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.
AI is easy. Systems are hard. We build systems.
AI is easy. Systems are hard. We build systems...
Top Services:
- Software Development
- AI Development
- Staff Augmentation
- Cloud Consulting
- Software Testing
- Show more
- Location
- Irvine, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 20 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAristek Systems Services
Data sourced from the agency's DesignRush profileSoftware& IT Industry Energy Industry Education Industry Entertainment Industry Health Care Industry Transportation & Logistics Industry
Aristek Systems Reviews & Testimonials

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.

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.

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 ReviewsDriven by Innovation
The best eCommerce development company empowering you with the tools you need to conquer your industry...
Top Services:
- Wearables
- VR/AR
- Mobile App Development
- Software Development
- eCommerce Development
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- Location
- Pleasanton, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 11 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsFolio3 Services
Data sourced from the agency's DesignRush profileLioher - Magento B2B Solution TJM Flexiglass Trilink Colgate-Palmolive Standard Chartered Zoetis Mercedez Benz Barnes and Noble Merck
Folio3 Reviews & Testimonials

Web Development Review from Irshad
I am very happy about how Folio3 gives 100% in the work dedication and has a very organized and energetic team who thrive with innovative ideas for our business. We are still using Folio3 on a regular basis and also get excellent updates from any usage left so that we can utilize our monthly allowance which is great teamwork.

Web Development Review from Mike Do
Whether it’s a new development, update or maintenance – Folio3 always shines through. Their turnaround time is always stellar, it’s a pleasure to work with them.

Software Development Review from Stewart Kelly
They have helped us manage and execute the bulk of the engineering work necessary for integrating with our partners in the Airline, Car and Hotel verticals.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAccelerating Progress Through Technology
We can extend your team, expand your products and innovate your current technology...
Top Services:
- Web Development
- Software Development
- eCommerce Development
- UI/UX Design
- Mobile App Development
- Show more
- Location
- San Diego, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsArkusNexus Services
Data sourced from the agency's DesignRush profileFigo Pet Insurance Playboy Catalytic Risk Advanta Healthcare.com
ArkusNexus Reviews & Testimonials
Jesus Romero's Review Sourced from Google
it's a hiring scam, i never applied here and had someone reach out with an interview request
Cody McGrady's Review Sourced from Google
This company is illegitimate. Someone close to me was offered a job without an interview, and there have been numerous red flags. They sent a fake check (from a closed bank account and signed by “Long Live”) to buy needed materials for the job. Luckily we were smart enough not to provide any information or click on any email links.Stay away! I have tried numerous times to make contact with someone legitimate in the company but haven’t heard anything.
Monserrat Gutierrez's Review Sourced from Google
Been working here for two years, It has its ups and downs but everyone always tries to keep a good environment.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTrusted by Leading Brands
We work with startups and enterprise clients to create amazing mobile apps that users love, across iPhone, iPad, Android and the Web...
Top Services:
- Mobile App Development
- Web Design
- Web Development
- UI/UX Design
- IoT
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsInfinixSoft Services
Data sourced from the agency's DesignRush profileUdely.com bubblesu.com pezo.land
Innovating One Product at a Time!
Kwanso, recognized as a top 5 mobile company by Silicon Review, is a team of expert designers, developers, machine learning engineers, and consultants dedicated to building exceptional digital experiences...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- eCommerce Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsKwanso Services
Data sourced from the agency's DesignRush profileWhirlpool Craftsman Gladiator Kenmore RealREPP TrueReview College Advisor BioMarker Uptok Bushnell
Kwanso Reviews & Testimonials
Full Circle Healthcare Solutions's Review Sourced from Google
Although I have responded to be removed from this person‘s spamming emails, they still continue to email me over and over again. This is borderline rude and an excusable since I have responded to those emails to be opted out. Regardless of the business the way that you represent it is not how I do business. Normally I don’t leave responses but after three or four times of receiving the same emails when requesting to be opted out I figured this was the best place to post.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAiming to enhance the lives of billions of users with innovative technology solutions.
BestPeers is a top software development company specializing in custom software, website development, UX/UI design, and full-stack solutions. With a focus on quality, innovation, and timely delivery, BestPeers creates consumer-centric tech solutions across diverse industries, ensuring client satisfaction and...
Top Services:
- Digital Strategy
- Web Design
- eCommerce Development
- Web Development
- UI/UX Design
- Show more
- Location
- California City, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsBest Peers Services
Data sourced from the agency's DesignRush profileS2Infinitum Softech Pvt Ltd Shethink pvt ltd AtmaGo
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