California Node.js Companies
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California Node.js Companies

Looking for the right Node.js company in California? If real-time features, blazing performance, and API velocity matter, Node.js becomes mission-critical to your product’s roadmap. But with so many vendors, how do you spot the one that fits your stack, budget, and timeline? The smart move is data-driven partner selection, not guesswork.

That’s where ITProfiles comes in: we leverage the ITP Score, our rigorous data scan across the web, to surface 17 companies and present an unbiased list, with neutral expert analysis plus clear pros and cons for every firm we cover. Ready to cut noise, compare confidently, and pick your ideal California-based Node.js agency?

Takes only 2 mins, 100% free

Average project size: $25,000 to $50,000 Average hourly rate: $50 - $99
  • Aron Web Solutions
  • Radixweb
  • Solvd, Inc.
  • TheoremOne
  • Codup
  • Link Development
  • Facet Interactive
  • Mattered
  • ENDERTECH
  • Propane

Post a project Takes only 2 mins, 100% free

Highest-Ranked Node.js Companies in California

17 Companies Showing Top 17 Node.js Companies In California Updated on May 26, 2026 Reviewed by: ITProfiles Team
Every agency on ITProfiles is evaluated for expertise and client feedback to help you make informed decisions. See how we rank companies
  • We make businesses stand out

    Aron Web Solutions (Mohali, Punjab) is a technology company with over a decade of experience (established around 2012) in software, web, mobile app, and e-commerce development. They offer native Android and iOS, as well as cross-platform mobile app solutions (React Native, Ionic, Xamarin, PhoneGap). The team of 50+ professionals has delivered 1,000+ projects globally. In the mobile app domain, they handle app design, development, integration, maintenance, and ongoing support. Their approach involves rigorous testing & quality assurance to ensure reliability and security. They also provide web and portal development services using frameworks like PHP, WordPress, Node.js, React.js, etc.
    Node.js, NextJS, Laravel, ReactJS
    • Founded in 2012
    • 51-100 Members
    • $10 - $24/hr
    • $5,000 to $10,000

    Best For

    • Businesses (startups, SMEs) looking to build mobile apps (native or hybrid) with solid UX/UI and moderate to high custom functional needs.
    • Clients who need full-lifecycle app development: from concept & design through launch and post-launch support.
    • Projects where cross-platform development makes sense—savings on time or cost by sharing code between Android and iOS.
    • Organisations that want apps + backend integrations or need secure, reliable platforms.
    • Clients who value communication, structured process, and clarity in project delivery (milestones, QA, bug fixing, etc.).

    Industries Specialization

    Hospitality & Leisure 20%

    Healthcare 20%

    Food Delivery 15%

    ECommerce 30%

    B2B 15%

    aronwebsolutions.com mobile-app-development

    aronwebsolutions.com mobile-app-development

    Why Hire Them

    • Depth of experience: Over 13 years in the business, with more than 1,000 projects under their belt, indicates maturity and exposure to different kinds of mobile-app challenges.
    • Technology breadth: They work in both native (Android, iOS) and cross-platform environments (React Native, Ionic, Xamarin, PhoneGap), which allows flexibility depending on budget, required performance, and timeline.
    • Comprehensive service: They handle all parts of app development: design, development, integration, maintenance; not just coding.
    • QA & reliability focus: They emphasize testing, quality assurance, and ongoing support, which is important for app-based products, especially once live.
    • Global reach & varied client base: Working with international clients suggests they are used to diverse requirements, cross-cultural communication, and varying technical standards.
    • A User-Centric SEO Optimized Beauty Hub

      A User-Centric SEO Optimized Beauty Hub

    • Designed and developed website

      Designed and developed website

    • Empowering Beauty Enthusiasts with Every Click

      Empowering Beauty Enthusiasts with Every Click

    • Designed for Users and SEO Success

      Designed for Users and SEO Success

    Client Review Summary

    Overall, client feedback for Aron Web Solutions is mostly positive, with several recurring themes. Clients frequently highlight timely delivery, clear communication, and a strong understanding of requirements. Many commend the quality of work, professional behavior, helpfulness, and responsiveness of the team. Some even mention that the company exceeded expectations, particularly in areas like Shopify design and app integrations. Working with Sunil, presumed to be the lead or managing director, is often described as smooth and is noted for being responsive, patient with changes, and effectively supervising the team.

    However, a small number of clients have noted areas where the experience could be improved, mentioning instances of slower updates, occasional delays, or communication gaps. One client also shared that they needed to follow up more frequently than expected during the project.

    Taken together, the reviews reflect a generally positive reputation, but with enough negative experiences to suggest that clients should establish clear contracts, maintain consistent communication, and closely track project progress to ensure smooth delivery.

    View all reviews

    Why Clients Trust Them

    • Extensive industry experience and a strong project portfolio establish their credibility.
    • End-to-end development services reduce the need for clients to manage multiple vendors.
    • Clear focus on quality, security, stability, and dependable post-launch support builds assurance.
    • Strong communication practices: clients are kept informed, changes are handled smoothly, and responses are prompt.

    Client Reviews Often Mention

    • Supportive Team (8)
    • High Quality Work (10)
    • Occassional Delays (5)
    • Good Responsiveness (9)
  • Enterprise Product Development, AI and Data Engineering Experts

    Radixweb delivers an extensive range of digital and technology services, including mobile app and web development, eCommerce platforms, virtual reality applications, and AI-integrated solutions. The company focuses on blending creativity with technical precision to produce experiences that engage, scale, and perform. Whether developing immersive VR experiences, custom eCommerce portals, or robust APIs for seamless integration, Radixweb’s multidisciplinary teams ensure that every solution aligns with the client’s growth objectives. Their diverse expertise across modern frameworks, cloud ecosystems, and automation tools helps businesses accelerate innovation and achieve measurable ROI.
    Node.js, .NET, Flutter, Android App Development
    • Founded in 2000
    • 501-1000 Members
    • $25 - $49/hr
    • $25,000 to $50,000

    Enterprise Product Engineering: India (5.0 Stars, 3000+ Clients)

    Enterprises and mid-market organizations needing scalable engineering teams for product development, AI implementation, or data engineering. Best suited for projects requiring cross-domain experience and established delivery processes.

    Client Type

    Mid-Sized Businesses 25%

    Large Enterprises 25%

    Startups 30%

    Small Businesses 20%

    Industries Specialization

    Legal 20%

    Insurance 20%

    Healthcare 20%

    Financial Services 20%

    Education 20%

    radixweb.comhomepage

    radixweb.comhomepage

    Why Hire Them?

    Radixweb is trusted globally for its ability to deliver versatile, high-impact technology solutions that bridge innovation with business goals. What distinguishes the company is its holistic approach to digital transformation, combining design, development, and deployment with precision and scalability.

    Their teams work closely with clients to understand both the functional and emotional aspects of digital experiences, ensuring every project delivers measurable business value.

    The company’s strength lies in its cross-domain expertise, covering mobile, web, e-commerce, virtual reality, AI, and blockchain technologies. This diversity allows the company to build integrated ecosystems rather than isolated solutions, enabling clients to stay ahead in a fast-evolving digital landscape. Their emphasis on transparency, agile collaboration, and adaptive scaling ensures each project is handled with efficiency and care.

    Radixweb’s design-first philosophy ensures intuitive user experiences, while their engineering depth guarantees high performance and reliability. From immersive VR solutions to secure API frameworks and AI-driven business tools, the company maintains a consistent standard of innovation and quality.

    Moreover, clients value their proactive communication, quick turnaround times, and readiness to adopt new technologies, making Radixweb a long-term partner for sustainable digital growth.

    Success Story

    Radixweb partnered with a European retail brand to build a unified online storefront integrating AI-driven recommendations and a responsive web interface. The solution increased online engagement by 40% and conversion rates by 25%. The client highlighted Radixweb’s design expertise, responsiveness, and clear communication throughout the project.

  • Solvd, Inc.
    Walnut Creek, United States

    Global Software Engineering Company

    Solvd, Inc. is a Global Software Engineering company headquartered in California, USA with over 800 employees in 8 offices worldwide. It has delivery centers in the USA, LATAM, and EMEA.
    Node.js, ReactJS, React Native, Laravel
    • 201-500 Members
    • $25 - $49/hr
  • TheoremOne
    Los Angeles, United States

    TheoremOne, headquartered in Los Angeles, CA, is a technology company that specializes in a wide range of services to help businesses thrive in the digital world.
    Node.js, ReactJS, React Native, .NET
    • 201-500 Members
    • $150 - $199/hr
    • $100,000 to $250,000
  • Codup
    Irvine, United States

    Located in the bustling city of Irvine, CA, Codup is a premier software development company that offers a wide range of services to help businesses grow and thrive in the digital age.
    Node.js, Wordpress, React Native, .NET
    • 51-100 Members
    • $25 - $49/hr
    • $10,000 to $25,000
  • Link Development is a highly skilled and innovative company based in Irvine, CA. Our strategic location in the heart of the tech industry allows us to stay ahead of the game and provide cutting-edge solutions to our clients.
    Node.js, Microsoft Sharepoint, React Native, Other Frameworks and CMS
    • 201-500 Members
    • $25 - $49/hr
    • $25,000 to $50,000
  • Facet Interactive is a top-tier technology company based in El Segundo, CA, offering a wide range of innovative solutions to meet the evolving needs of businesses.
    Node.js, Drupal, ReactJS, Wordpress
    • 21-50 Members
    • $100 - $149/hr
    • $25,000 to $50,000
  • Mattered
    Irvine, United States

    Welcome to Mattered - your premier partner in digital solutions based in Irvine, CA. At Mattered, we pride ourselves on delivering cutting-edge web design services that are tailored to meet your unique business needs.
    Node.js, Other Frameworks and CMS, Wordpress, ReactJS
    • 21-50 Members
    • $100 - $149/hr
    • $5,000 to $10,000
  • ENDERTECH
    Los Angeles, United States

    Microsoft Partner: .NET, Azure & AI Solutions + Developer Staffing

    UKAD LLC is a Kirkland, WA-based Microsoft-focused technology consultancy with a strong certification profile: Microsoft Solutions Partner, ISO 27001 Certified, Optimizely Bronze Solution Partner, Umbraco Partner, and Norce Partner. They have 201-500 employees and pricing at $25-49/hr ($10k-25k minimums). Their recognition includes Clutch's 2024 Umbraco CMS Award and Top .NET Developer 2019.Their services: .NET and Azure development, AI solutions via Microsoft Cognitive Services, custom software, React Native mobile development, Umbraco and Optimizely implementations, PIM solutions, and flexible developer staffing. Their domain expertise spans e-commerce, FinTech, and e-learning. For organizations in the Microsoft ecosystem, UKAD offers certified, ISO-compliant delivery with the option of project-based or staff augmentation models.
    Node.js, ReactJS, NextJS, React Native
    • 21-50 Members
    • $100 - $149/hr
    • $10,000 to $25,000

    LA Microsoft Partner: .NET, Azure & AI Solutions

    Best for businesses committed to the Microsoft ecosystem needing .NET development, Azure cloud architecture, or AI solutions. ENDERTECH's Microsoft partnership ensures certified expertise across the stack.

    Certified Microsoft Technology Expertise

    As a Microsoft partner, ENDERTECH brings certified, up-to-date knowledge of .NET, Azure, and AI services. For organizations standardized on Microsoft, this means fewer compatibility surprises and access to the latest platform capabilities.

    Developer Staffing as Adjacent Offering

    In addition to project delivery, ENDERTECH offers developer staffing services -- useful for companies that need to augment in-house teams with Microsoft-specialized talent. This dual model provides flexibility between build and staff augmentation.
  • Propane
    San Francisco, United States

    Based in the vibrant city of San Francisco, CA, our company is dedicated to providing top-notch services in User Experience, Product Design, Web Development, Web Design, Branding, and Multimedia.
    Node.js, ReactJS, Laravel, AngularJS
    • 21-50 Members
    • $100 - $149/hr
    • $10,000 to $25,000
  • ActiveColor
    Los Angeles, United States

    LA Digital Agency: Web Design, Development & UX

    ActiveColor is a Los Angeles, CA-based digital agency offering web design, web development, software development, and UX services. For Southern California companies seeking a locally based partner for web and software projects, ActiveColor provides full-stack capabilities with West Coast accessibility.
    Node.js, Wordpress, VueJS, Flutter
    • 2-10 Members
    • $150 - $199/hr
    • $25,000 to $50,000

    LA Digital: Web Design, Development & UX

    Best for Southern California businesses needing web design, web development, software development, and UX services from a locally based partner. ActiveColor provides full-stack digital capabilities with West Coast accessibility.

    Full-Stack LA Digital Capability

    Covering design, development, and UX, ActiveColor provides true end-to-end digital service from a single LA-based team. This full-stack capability eliminates the coordination challenges of splitting creative and technical work across different vendors.

    Southern California Market Access

    Los Angeles-based with direct access to the Southern California business community. For LA-area companies, working with a local digital partner means convenient collaboration and market-relevant strategies.
  • Wunderdogs
    San Francisco, United States

    Wunderdogs is a dynamic creative agency based in the vibrant city of San Francisco, CA. We are a team of passionate individuals dedicated to helping businesses elevate their brand presence and digital experiences.
    Node.js, React Native, Wordpress, Other Frameworks and CMS
    • 21-50 Members
    • $100 - $149/hr
    • $5,000 to $10,000
  • AE Studio
    Los Angeles, United States

    AE Studio is a cutting-edge tech company based in the vibrant city of Los Angeles, CA. We pride ourselves on being at the forefront of innovation, providing top-notch solutions to meet your digital needs.
    Node.js, ReactJS, React Native, AngularJS
    • 51-100 Members
    • $200 - $300/hr
    • $100,000 to $250,000
  • 47Billion
    Santa Clara, United States

    Located in the bustling tech hub of Santa Clara, CA, 47Billion is a leading company specializing in a wide range of innovative services to cater to the digital needs of businesses.
    Node.js, ReactJS, Flutter, Other Frameworks and CMS
    • 51-100 Members
    • $25 - $49/hr
    • $5,000 to $10,000
  • Data Monsters
    Palo Alto, United States

    Data Monsters is a cutting-edge technology company based in Palo Alto, CA, specializing in a wide range of services to meet the diverse needs of our clients.
    Node.js, Other Frameworks and CMS, React Native, Flutter
    • 51-100 Members
    • $100 - $149/hr
    • $25,000 to $50,000
  • Located in Vista, CA, The Smyth Group is a powerhouse in the world of technology and innovation. As a company that prides itself on staying ahead of the curve, we specialize in Artificial Intelligence, Software Development, and User Experience.
    Node.js, ReactJS, VueJS, React Native
    • 21-50 Members
    • $25,000 to $50,000

Struggling to choose? Let us help.

Post a project for free and quickly meet qualified providers. Use our data and on-demand experts to pick the right one for free. Hire them and take your business to the next level.