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Top eCommerce Development Companies in California - November, 2026 | RightFirms

Are you looking for top eCommerce development companies in California?

If you are a business owner and want to develop an eCommerce website, then eCommerce development companies in California will help you with that. These companies have the experience of producing high-quality eCommerce websites. They will help you build your website and guide you through it in terms of functionality, design, performance and other aspects.

To find a trustworthy partner for eCommerce website development, RightFirms has compiled a list of California-based top eCommerce development agencies. Use this list to select companies according to available options like company portfolio, market experience, hourly rate, etc.

How this list is built: This list is prepared using multiple trust and relevance signals, including profile completeness, service expertise, reviews and review freshness, external business signals, and selected signals reviewed by the RightFirms research team. We regularly review these signals and update our listings to help buyers discover credible and relevant partners. Learn more about our methodology

Top eCommerce Development Companies in California | Top eCommerce Developers in California
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AllianceTek Inc.
RightFirms reviewed this company’s profile, work, reviews, clientele, and public trust signals.

Empowering AI Excellence

4.9★★★★★4.9 / 5(20 reviews)
Online
Employees51 to 250
Avg. hourly rate$26 - $50 /hr
Focus AreaE-Commerce Development
LocationUSA, Canada

AllianceTek is a global technology consulting and custom software development company with 20+ years of experience delivering scalable digital solutions. We specialize in AI, cloud, web, mobile, enterprise applications, Microsoft technologies, Salesforce, DevOps. Serving startups, enterprises, healthcare, education, government, and nonprofits, our U.S. and India teams provide end-to-end services that accelerate innovation, improve efficiency, and drive long-term business growth.Read More About AllianceTek Inc.

5.0

“Web Development for Sharepoint and Azure workflow development”

Gerald Donlon, VP
AppMakers
RightFirms reviewed this company’s profile, work, reviews, clientele, and public trust signals.

Top US Mobile & Web App Development Agency

5.0★★★★★5.0 / 5(10 reviews)
Employees11 to 50
Avg. hourly rate$51 - $100 /hr
Focus AreaE-Commerce Development
LocationUSA

AppMakers USA is a leading software development company specializing in mobile app development, web solutions, and custom software across iOS, Android, and cross-platform frameworks. We work closely with businesses of all sizes to bring their ideas to life, leveraging cutting-edge technology and innovative design. Our expert team excels in UI/UX, backend architecture, and scalable solutions tailored to your industry needs.Read More About AppMakers

5.0

“Their team was on it from day one”

Troy Johnson, CEO & Founder, Blippin

Enterprise AI Solutions

4.2★★★★★4.2 / 5(5 reviews)
Employees251 to 1000
Avg. hourly rate$26 - $50 /hr
Focus AreaE-Commerce Development
LocationUSA, India

Seasia Infotech is a global digital engineering company delivering AI-powered software, enterprise applications, and cloud solutions that accelerate business transformation. Read More About Seasia Infotech

4.8

“Exceptional Application Services for Health Business App Development”

JasicaVerified review

Mobile App Development Company

3.9★★★★★3.9 / 5(3 reviews)
Employees11 to 50
Avg. hourly rate< $25 /hr
Focus AreaE-Commerce Development
LocationIndia

Junkies Coder is a leading technology solution provider across 15 countries and 50+ Rockstar Developers is our strength, We're specializing in Top-rated Mobile App Development, Blockchain, Web Excellence and innovative solutions. Our experienced team is dedicated to delivering high-quality service and support to help businesses achieve their goals. With a passion for technology and a commitment, we have the expertise and resources to streamline operations and drive success.Read More About Junkies Coder

5.0

“Roboshy - Robots marketplace Web App”

Roboshy, Business Development ExecutiveVerified review
Intellectsoft
RightFirms reviewed this company’s profile, work, reviews, clientele, and public trust signals.

Engineering Your Vision

4.9★★★★★4.9 / 5(2 reviews)
Employees51 to 250
Avg. hourly rate$51 - $100 /hr
Focus AreaE-Commerce Development
LocationUSA, UK

Intellectsoft is a global digital transformation consultancy, accelerating technology adoption, solving complex digital challenges, and driving innovation. Recognized as a top B2B software development firm in 2021, they've experienced significant growth, offering strategic IT consulting, CX design, custom software development, and full project lifecycle support.Read More About Intellectsoft

5.0

“They are outstanding at project management”

Michele Featherston, Director of Project Management

Award-Winning Mobile Design & Development Agency

4.5★★★★★4.5 / 5
Employees51 to 250
Avg. hourly rate$101 - $150 /hr
Focus AreaE-Commerce Development
LocationUSA

Utility is a premier digital product agency specializing in custom mobile apps, web platforms, and AI-powered solutions for forward-thinking startups and global brands - including Airbnb, Coca-Cola, Samsung, the NBA, and Forbes. With offices in New York and Los Angeles, our team includes leading product strategists, UX/UI designers, AI engineers, and top-tier developers.Read More About Utility

We Grow, When You Grow

4.2★★★★★4.2 / 5
Employees51 to 250
Avg. hourly rate< $25 /hr
Focus AreaE-Commerce Development
LocationIndia, USA

Started in 1999, WeblineIndia is one of the pioneer offshore software development company based in USA and India. We work with ‘Reliability’ as our hallmark and provide software development outsourcing services to clients in 25+ countries across the globe. Our RelyShore software development service model is an outcome of our years of learning and a rich experience gathered through hundreds of projects across technologies, domains and countries.Read More About WeblineIndia

Top-Rated Mobile App & Software Development Company

4.0★★★★★4.0 / 5
Employees11 to 50
Avg. hourly rate< $25 /hr
Focus AreaE-Commerce Development
LocationIndia, USA

Auspicious Soft is a leading software development firm that creates innovative digital solutions using Agile methodologies. With a focus on cutting-edge technology and exceptional design, they deliver high-quality, user-centric applications. Their global presence, including offices in Canada and Alaska, supports diverse clients, ensuring top-notch quality and customer satisfaction.Read More About Auspicious Soft Pvt Ltd

See Beyond, Rise Above

4.0★★★★★4.0 / 5
Employees10,000+
Avg. hourly rate$26 - $50 /hr
Focus AreaE-Commerce Development
LocationUSA

We are a reliable partner in Digital Engineering and Enterprise Modernization. Our team combines extensive technical expertise with industry experience to assist our clients in predicting what is coming next and finding answers to potential questions. Our proven solutions and services provide a distinctive competitive edge for our clients by enabling them to gain a broader perspective and surpass their competitors.Read More About Persistent Systems

Powering Innovation with Tailored Enterprise Solutions

3.9★★★★★3.9 / 5
Employees11 to 50
Avg. hourly rate$101 - $150 /hr
Focus AreaE-Commerce Development
LocationUSA, United Arab Emirates

3DEX Inc., headquartered in California, USA, has been a trusted partner in software development and innovation for over two decades. Read More About 3DEX

AI-Powered Software and Mobile App Development Company

3.5★★★★★3.5 / 5
Employees11 to 50
Avg. hourly rate$26 - $50 /hr
Focus AreaE-Commerce Development
LocationIndia, USA

GMTA Software Solutions is a custom software and AI development company based in Jaipur, India. With 7+ years in business, 200+ projects delivered and a team of 25+ developers, GMTA builds mobile apps, web applications, SaaS products and AI solutions for startups and growing businesses. It focuses on fintech and eWallet, healthcare, on-demand mobility and AI-driven products, serving clients in the US, UAE, Japan and Singapore, with offices in India, the US, Singapore and Japan.Read More About GMTA Software Solution

Make the right Choice

3.9★★★★★3.9 / 5
Employees251 to 1000
Avg. hourly rate$51 - $100 /hr
Focus AreaE-Commerce Development
LocationUSA

AlphaBold is a leading consulting firm specializing in Dynamics 365 and NetSuite solutions. They help businesses implement, optimize, and manage ERP systems for enhanced efficiency and customer engagement. AlphaBold also offers expertise in AI, Copilot, and Microsoft Fabric Cloud Services, along with custom development and digital transformation services, enabling businesses to innovate, automate, and scale in the digital era.Read More About AlphaBOLD

ThinkPalm
RightFirms reviewed this company’s profile, work, reviews, clientele, and public trust signals.

INNOVATE. CONNECT. EMPOWER.

4.7★★★★★4.7 / 5(7 reviews)
Online
Employees251 to 1000
Avg. hourly rate$26 - $50 /hr
Focus AreaE-Commerce Development
LocationIndia, USA

Enterprise, Mobility and Communication Service Provider | ThinkPalm Technologies Read More About ThinkPalm

5.0

“Software Dev Support for Electronics Company”

Yuri Poddobny, SW Group Manager
Plavno
RightFirms reviewed this company’s profile, work, reviews, clientele, and public trust signals.

AI-First Software
 Development Company

4.9★★★★★4.9 / 5(16 reviews)
Online
Employees51 to 250
Avg. hourly rate$26 - $50 /hr
Focus AreaE-Commerce Development
LocationUSA, Kazakhstan

Plavno is a premier software development house with over 20 years of experience and a highly qualified team of experts in your industry. Fully-fledged teams of specialists cover each stage of product creation, from product management and analysis to design, development, testing, and ongoing support.Read More About Plavno

4.8

“Good Company”

SUCHMITA BORO, DeveloperVerified review

Reliable Development Partner to Empower your Business

4.0★★★★★4.0 / 5
Employees51 to 250
Avg. hourly rate< $25 /hr
Focus AreaE-Commerce Development
LocationUSA, India

Web Infotech is a leading web, mobile app, and AI development company that helps businesses turn complex ideas into practical digital products. Backed by 10+ years of experience, 100+ IT professionals, and a strong client retention rate, the company partners with startups, SMBs, and enterprise teams across the globe to deliver solutions that are practical, scalable, and built for real-world use.Read More About WPWeb Infotech

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