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.
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...
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
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAgileTech Services
Data sourced from the agency's DesignRush profileClingme Luxstay Lian Ferosh Alosong Stardary Tizo Jupviec
AgileTech Reviews & Testimonials

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.

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.

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 ReviewsWe Craft Compelling Brands for the Ambitiously Bold.
At Revelation, we excel in creating remarkable brands that blend digital innovation with tangible products. Dive into our website to discover the projects we've proudly worked on, highlighting our imaginative prowess in full swing...
Top Services:
- Digital Services
- Creative Services
- Design Services
- Package Design
- Product Design
- Show more
- Location
- West Hollywood, California
- Number of Employees
- Under 49
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 20 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsRevelation Agency Services
Data sourced from the agency's DesignRush profilePizzagram Wukiyo Keast Opera On Water Imlek Samsung Nectar Juice Ketofabrik Kolašin Valleys JLL Hemp
Revelation Agency Reviews & Testimonials

Branding Review from Marta Stattmiller
A friend referred me to Revelation after they had helped them with their healthy snack brand. We were looking for an agency that would take our idea and design it into a brand that really stood out from the rest. We felt the Revelation group did a great job with all of the branding and marketing brief creation along with guiding us on how to stand out in our space.

Branding Review from Christopher Hiti
We have worked with Revelation on a few branding projects, and they have always delivered on time and with a great sense of creativity. Their team understands market positioning well, and is one of the reasons we continue to utilize them for all things branding and creative.

Web Design Review from Guisou Akhavan
After searching for a few months for a creative agency I ended up going with Revelation, I felt they understood my goals the best along with having a distinct design language. I was pretty impressed with the direction they took on my branding materials and web design project and feel comfortable recommending them to other people needing similar services.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsFemale-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...
Top Services:
- Digital Marketing
- PPC
- SEO
- Branding
- Email Marketing
- Show more
- 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
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSLT Consulting Services
Data sourced from the agency's DesignRush profilePeloton Warby Parker The Drop fiverr elix The Dogist Love|Labels Erica Weiner Pura Vida Naturals Clean Beauty Lab
SLT Consulting Reviews & Testimonials

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.

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!

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 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 ReviewsTop-rated Mobile Apps, AI/ML, Blockchain Development Company.
Junkies Coder is a leading technology solution provider across 15 countries and 50+ Rockstar Developers is our strength, We're specializing in web development, Top-rated Mobile App Development, and innovative solutions. Our experienced team is dedicated to delivering high-quality service and support to help...
Top Services:
- Mobile App Development
- Web Development
- WordPress Website Design
- eCommerce Development
- Digital Services
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 15 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsJunkies Coder Services
Data sourced from the agency's DesignRush profileMr Kabadiwala Source Vehicle Mashorah for Research and Innovation Odoo DAOnation i-Stem EMAAR
Junkies Coder Reviews & Testimonials

Mobile App Development Review from Beranger Dumont
Junkies Coder delivered an excellent mobile app for BPI Real Estate Poland, combining strong technical skills with a clear understanding of our business goals. From the start, they were professional, responsive, and focused on user experience. The app was designed with a clean, modern interface that made property browsing, filtering, and agent contact smooth and intuitive. Built using React Native, it launched seamlessly on both Android and iOS platforms, with features like advanced search, map integration, push notifications, and bilingual support. The team managed the project efficiently using agile methods, kept us informed with regular updates, and quickly implemented feedback. They also ensured strong backend integration with our property database and CRM. Testing was thorough, and the final app was stable, fast, and secure. Since launch, we've seen a noticeable increase in user engagement and property inquiries. Junkies Coder also provided great post-launch support, helping us refine features and monitor performance. Overall, they exceeded our expectations and delivered a product that added real value to our business. We highly recommend them for any mobile app development needs.

Mobile App Development Review from Volodymyr Fedak
Create a React app and an iOS and Android app using React Native after designing every screen in Figma. They were able to complete each milestone on schedule once we divided the project into many due dates and milestones.

Mobile App Development Review from George Tekelis
Junkies Coder thoroughly examined our current platform, identifying problems and potential enhancements. They provided a product plan, thorough wireframes, and technical suggestions for scalability. Enhancements to user flow, UI/UX improvements, and recommendations for automating crucial procedures like job delegation and budget tracking were also part of their work.
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 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 ReviewsHelping Tech Startups, Entrepreneurs and Enterprises Build World-Class Products
We design, develop and deliver high-tech bespoke software solutions for SMEs, Enterprises, Funded Startups and Ventures...
Top Services:
- Web Design
- eCommerce Development
- Web Development
- IoT
- Mobile App Development
- Show more
- Location
- Dublin, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCommit Labs LLC Services
Data sourced from the agency's DesignRush profileListFixx Phillip Jefferies Scanshake
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...
Top Services:
- Digital Marketing
- Social Media Marketing
- SEO
- Advertising
- PPC
- Show more
- 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
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsEPRIZ 7, LLC Services
Data sourced from the agency's DesignRush profileAltece Design Amparo's Home Furniture Stereo1
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...
Top Services:
- Mobile App Development
- Web Development
- Software Development
- VR/AR
- eCommerce Development
- Show more
- 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
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAppventurez Mobitech Services
Data sourced from the agency's DesignRush profileHOLCIM Ever Friends AI ENUNCIA.AI Digishayak Tattoo Planet Electronica Finance Limited (EFL) Ezipay Melto Zoës Kitchen Adviceme
Appventurez Mobitech Reviews & Testimonials

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 ReviewsEngage The World In The Worthwhile
Fifty and Fifty is a San Diego-based growth strategy and marketing agency helping nonprofit organizations and social enterprises translate strategy into the brand, marketing, web, and technology systems that drive sustained engagement and revenue growth...
Top Services:
- Digital Services
- Branding
- Digital Strategy
- Design Services
- Creative Services
- Show more
- Location
- Encinitas, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsFifty and Fifty Services
Data sourced from the agency's DesignRush profileUNEP United Way Biolite Lifestraw San Diego Foundation Curebound Red Cross Balboa Park National University
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