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.
We create websites and provide businesses with various opportunities to collect leads and make money from unexpected conversions. The custom website company is dedicated to fulfilling needs that our experts can handle. We only make the best promises when it comes to website creation...
Top Services:
- Branding
- Web Design
- Web Development
- eCommerce Development
- WordPress Website Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Portfolios Count
- 5 Projects Listed
Kaizen 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
Founder-led IT staff augmentation for small-mid companies. We solve problems you haven't fully scoped yet...
Top Services:
- eCommerce Development
- Software Testing
- AI Development
- Mobile App Development
- Software Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 2 Projects Listed
We're JetRuby — AI-native, award-winning, and ISO-certified agency that's been shipping software since 2010. Our 250+ engineers turn bold ideas into production-ready products, starting from budgets of $50,000 and scaling all the way to enterprise roll-outs...
Top Services:
- Web Development
- Software Development
- Mobile App Development
- Web Design
- AI Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 33 Projects Listed
ThirdEye Data Transforms Enterprises with Data & AI Solutions & Services. ThirdEye Data leverages Artificial Intelligence & Data technologies to build AI applications for enterprises worldwide...
Top Services:
- AI Development
- Big Data Analytics
- Software Development
- IT Services
- Staff Augmentation
- Show more
- 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
Cidersoft builds compelling apps and websites that will strengthen the success of your business...
Top Services:
- Staff Augmentation
- Web Development
- Software Development
- Cloud Consulting
- AI Development
- Show more
- Location
- San Ramon, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $65/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Whether you need strategy, consulting, hiring support, or a fresh website, we partner with you to build solutions that fit your goals, budget, and long-term growth...
Top Services:
- Web Design
- Digital Strategy
- Business Consulting
- UI/UX Design
- Web Development
- Show more
- Location
- Dublin, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 8 Projects Listed
Mobikasa is a full-service global digital agency headquartered in Miami, delivering high-performance web, mobile, and e-commerce solutions since 2011. We help brands scale through custom apps, scalable storefronts, and data-driven marketing, blending strategy, design, and technology...
Top Services:
- Web Development
- eCommerce Development
- Web Design
- Mobile App Development
- Digital Marketing
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 13 Projects Listed
We provide results-driven solutions in the Digital field since 2006. While working with us you will receive the expertise and knowledge from our Digital Agency and highly qualified resources from our Research & Development Competence Centre...
Top Services:
- Web Development
- Web Design
- Mobile App Development
- SEO
- PPC
- Show more
- Location
- Escondido, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
One of the fastest growing technology enterprise, RailsCarma specializes in crafting solutions for entrepreneurs, large organizations, agencies and start-ups. With a blend of ingenuous expertise, system prowess, and cloud compatibility, RailsCarma endeavours to maximize the profit that clients educe from...
Top Services:
- eCommerce Development
- UI/UX Design
- Mobile App Development
- IT Services
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Vipra is a technology consultation service provider with 100+ experienced developers and designers on board, we have assisted startups to enterprises in achieving digital success all across the Globe, we are very strong with quality and timely delivery...
Top Services:
- Mobile App Development
- Web Design
- Web Development
- WordPress Website Design
- eCommerce Development
- Show more
- Location
- Walnut, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
Sidebench is the top healthcare technology design and software engineering firm in the US. We combine strategy, design, technical architecture at every point of our process. We are known for delivering extraordinary business results...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- Wearables
- UI/UX Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 11 Projects Listed
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
Seasia Infotech is a global AI-powered digital engineering company with 25+ years of experience delivering custom software, AI solutions, cloud applications, mobile apps, and enterprise platforms. We help businesses accelerate innovation, improve efficiency, and drive digital transformation...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- AI Development
- Big Data Analytics
- Show more
- Location
- Emeryville, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 65 Projects Listed
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
Mangosoft is a top offshore software agency, offering web, mobile app, and enterprise development services. With a strong track record and a global presence, we have successfully delivered 250+ projects across 30+ countries. Our tailored teams of niche experts ensure optimal results, while our transparent...
Top Services:
- Software Development
- Mobile App Development
- AI Development
- Software Testing
- eCommerce Development
- Show more
- Location
- Santa Monica, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 18 Projects Listed
Coders hiring platform combines the planetary reach and AI to deliver your ideal Developers in order to help you spin up your Software Development dream team...
Top Services:
- Web Development
- UI/UX Design
- Design Services
- Branding
- Product Design
- Show more
- Location
- San Jose, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 6 Projects Listed
Techcronus Business Solutions is a global provider of enterprise business solutions and modern-day technology services...
Top Services:
- Mobile App Development
- Web Development
- PPC
- SEO
- UI/UX Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Portfolios Count
- 14 Projects Listed
Devsinc is a software development company that provides web and mobile application development services to customers across the globe. Led by a team of industry experts, we transform the ideas into reality and solve complex problems with our strong engineering and product skills...
Top Services:
- Web Development
- eCommerce Development
- Web Design
- Location
- Santa Clara, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
We specialize in innovative small business branding solutions that empower B2B brands to rise above the competition. Our focus is on UI/UX brand strategy, seamlessly integrating branding and marketing efforts to drive significant business growth...
Top Services:
- Logo Design
- Branding
- Package Design
- Design Services
- Print Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 5 Projects Listed
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...
Top Services:
- Web Design
- Digital Marketing
- Digital Strategy
- Graphic Design
- Logo Design
- Show more
- Location
- Torrance, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
Space-O Technologies is a software development company having 13+ years of experience in delivering custom software solutions for startups, enterprises, and Fortune 500 companies...
Top Services:
- Mobile App Development
- AI Development
- Software Development
- Web Development
- Web Design
- Show more
- Location
- Ontario, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 4 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
Ambsan Digital is a full stack company specializing in high-performance web and mobile app development. We transform ideas into scalable digital products, offering end-to-end services from UI/UX design and custom web platforms to native and cross-platform mobile applications. Our expert developers focus on...
Top Services:
- Mobile App Development
- Web Design
- Web Development
- Software Development
- UI/UX Design
- Show more
- Location
- California City, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed

Revenue Rise
VerifiedVerified by the DesignRush team for authenticity and credibility.Revenue Rise builds award-winning websites and client acquisition systems for mortgage brokers and realtors across the US and Canada. 412+ clients. $863M+ in transactions influenced...
Top Services:
- Digital Strategy
- Web Design
- Web Development
- eCommerce Development
- PPC
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $97/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Clap Creative is your next door tech firm in Los Angeles offering full-range web services under one roof. An experienced team of web professionals works to create custom internet solutions to meet your business goals. And when we say partners, we mean it!...
Top Services:
- Web Design
- Web Development
- Mobile App Development
- Graphic Design
- eCommerce
- Show more
- Location
- Calabasas, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
Premium software consultancy: Scaleups & Enterprises.Blockchain | DeFi | Biotech | FinTech | EduTech | HealthTech. From stunning product design to flawless code. We help you win!...
Top Services:
- Software Development
- Web Development
- Mobile App Development
- UI/UX Design
- Web Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 11 Projects Listed
Exadel is a leading global consulting and engineering company that delivers technology transformation to help customers become digital leaders in their industries...
Top Services:
- Software Development
- AI Development
- IT Services
- Big Data Analytics
- Business Consulting
- Show more
- Location
- Walnut Creek, California
- Number of Employees
- 1000 & Up
- Portfolios Count
- 6 Projects Listed
Our 200+ employees take pride in finding creative solutions to our clients toughest challenges whether they need us to assist with applying new technology and functionality which will increase revenue by improving their services for their customers or to reduce the expense of trying to maintain older...
Top Services:
- Mobile App Development
- Software Development
- DevOps Consulting
- Product Design
- Business Consulting
- Show more
- Location
- Fremont, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Portfolios Count
- 1 Project Listed
Propane is a San Francisco based brand, digital experience and platforms consultancy founded in 2003. The agency envisions, co-creates and builds brand and digital transformation platforms designed to deliver revenue, measurable outcomes and emotional connection (love)...
Top Services:
- Web Design
- UI/UX Design
- Web Development
- Digital Marketing
- AI Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 3 Projects Listed
Distillery is a seasoned player in the field of nearshore software development, offering expertise and a robust process for building, scaling, and innovating technology solutions...
Top Services:
- Software Development
- Mobile App Development
- Software Testing
- Blockchain
- IoT
- Show more
- Location
- Manhattan Beach, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 6 Projects Listed
95Visual is a boutique digital marketing and web development agency founded in 2008 and headquartered in Santa Clarita, California, with additional offices in Los Angeles and surrounding SoCal regions. The small in-house team of web and marketing specialists supports small to mid-sized businesses...
Top Services:
- Web Design
- Web Development
- Digital Marketing
- Social Media Marketing
- Branding
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
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
Carmatec is an enterprise IT solutions provider with over 23+ years of proven industry experience and has successfully carved out a niche in web development, software and application design and development apart from its expertise in mobile development, managed IT services & cloud solutions...
Top Services:
- Web Development
- Web Design
- Mobile App Development
- Software Development
- eCommerce Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 3 Projects Listed
Ranosys is an CMMI Level 3 Global Digital Consulting Company headquartered in Singapore with international footprints in the UK, US, Middle East and APAC regions. With our progressive vision, and relentless dedication- we’re on a mission to help our clients achieve their Tomorrow, Today. Combining the...
Top Services:
- eCommerce Development
- Web Design
- Mobile App Development
- Location
- Santa Clara, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
Our team of over 200 IT experts and engineers harness the power of contemporary technologies, advanced frameworks, and innovative methodologies to deliver unmatched and top-notch outsourced services from India...
Top Services:
- Mobile App Development
- Web Design
- eCommerce Development
- Web Development
- Software Testing
- Show more
- Location
- Sunnyvale, California
- Number of Employees
- 100 - 249
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Railwaymen is a software development company that specializes in a wide range of services to help businesses bring their digital ideas to life...
Top Services:
- Mobile App Development
- Software Development
- Web Design
- eCommerce Development
- UI/UX Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
Founded in 1993, Guidance is a commerce-focused digital agency based in Marina del Rey, California. The company specializes in B2C and B2B e-commerce solutions, backed by over 30 years of experience serving mid-market and enterprise retail and branded businesses. Guidance delivers site development, conversion...
Top Services:
- Web Development
- eCommerce Development
- CRO
- Location
- Manhattan Beach, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $170/hr
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...
Top Services:
- Software Development
- Cybersecurity
- IT Services
- Managed Services
- Web Design
- Show more
- Location
- Concord, California
- Number of Employees
- Under 49
- Portfolios Count
- 4 Projects Listed
Mission Web Marketing is a Santa Barbara-based digital marketing agency offering custom strategies in SEO, paid advertising, web design, and analytics. With over two decades of experience, the agency helps clients increase visibility, drive traffic, and generate measurable ROI through tailored online...
Top Services:
- WordPress Website Design
- Content Marketing
- Digital Marketing
- SEO
- PPC
- Show more
- Location
- Santa Barbara, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $10,000 - $25,000
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
TDF (The Development Factory) is a Los Angeles based product and technology consultancy that empowers companies to design, build, and deliver software more effectively. By upskilling teams, embedding expert interim product leadership, and offering seamless augmentation services, TDF enhances clients internal...
Top Services:
- Software Development
- UI/UX Design
- Web Development
- IoT
- Mobile App Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 3 Projects Listed
Campaign Creators is a results-driven inbound marketing agency headquartered in Irvine (Greater San Diego), California. Since 2017, the agency has specialized in lead generation, digital optimization, and integrated marketing executionand supports B2B and e-commerce brands with scalable, data-informed...
Top Services:
- Digital Marketing
- Web Design
- Web Development
- Social Media Marketing
- Email Marketing
- Show more
- Location
- San Diego, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $1,000 - $10,000
Ntooitive Digital helps businesses grow revenue with data-driven marketing and custom technology solutions...
Top Services:
- eCommerce Development
- Web Development
- Advertising
- Social Media Marketing
- Digital Marketing
- Show more
- Location
- Pasadena, California
- Number of Employees
- Under 49
CognitiveClouds is a custom software product and consumer app development company with a reputation for excellence in creating tailored software solutions...
Top Services:
- Mobile App Development
- Software Development
- IoT
- AI Development
- eCommerce Development
- Show more
- Location
- Fremont, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
Atomic Studio is a Pasadena, California-based digital creative agency founded in 2012. The firm specializes in crafting tailored web and mobile experiences spanning responsive development, e-commerce, brand identity, managed hosting, and digital strategywith a strong emphasis on polished design and user-first...
Top Services:
- Web Design
- eCommerce Development
- WordPress Website Design
- UI/UX Design
- Web Development
- Show more
- Location
- Arcadia, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 6 Projects Listed
Ad Victorem is a Los Angeles-based creative agency that combines award-winning creativity with business strategy to help challenger brands disrupt the status quo...
Top Services:
- Video Production
- Branding
- Web Design
- Digital Services
- Graphic Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Consagous Technologies is a global IT solutions provider specializing in end-to-end web and mobile application development. Since 2008, the agency has delivered over 700 projects for more than 689 clients worldwide, offering services such as mobile app development, custom software, UI/UX design, web...
Top Services:
- Mobile App Development
- Web Development
- IT Services
- Software Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 17 Projects Listed
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