Top ecommerce development companies in California

Selecting the right e-commerce development company is crucial for businesses looking to establish or enhance their online presence. With its tech-savvy environment and abundance of innovative firms, California offers many options. Our research outlines key considerations and provides essential tips to help you choose California's best e-commerce development partner.
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4.9 out of 5, based on 604 real reviews.
Rankings updated: Feb 10, 2026

List of top-rated California Ecommerce Development Companies

Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.

259 Companies

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17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 10% Ecommerce Development

  • 30% Mobile App Development

  • 20% Web Development

  • 20% Web Design

  • 20% Digital Marketing

Top web design and digital marketing firm

Premium Web Experts is a leading digital marketing and web design agency dedicated to helping businesses grow through creative, data-driven strategies. With years of industry experience, our passionate team of professionals delivers innovative solutions to complex challenges, transforming brands into powerful digital leaders. We specialize in website design and development, search engine optimization (SEO), and social media marketing—crafted to enhance visibility, engagement, and conversions. Our diverse team brings a wealth of experience from across the USA, ensuring every project benefits from unique insights and proven expertise. At Premium Web Experts, we combine creativity, research, and technology to unlock your brand’s full potential online.

View Premium Web Experts Profile
Inside Service Listing

$200-$300/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% Ecommerce Development

  • 10% Mobile App Development

  • 10% Software Development

  • 10% Web Development

  • 10% Web Design

  • 10% Internet of Things

  • 10% AI Development

  • 5% Product Engineering services

  • 5% Cloud Computing Services

  • 5% CMS

  • 5% Digital Marketing

  • 5% IT Services

  • 5% Digital Transformation

Setting the Standard for Staff Augmentation and IT Solutions

Cyber InfraStructure INC. (CIS), founded in 2003, is a global IT consulting and staff augmentation leader with offices in Central India, the USA, and the UK. We specialize in delivering top-tier technology solutions, helping businesses scale their teams and optimize operations efficiently. With experience serving over 2,100 clients across 100+ countries, we support industries including education, finance, travel, retail, manufacturing, gaming, and healthcare. CIS is recognized for excellence, holding CMMI Level 3, ISO 9001:2018 certifications, and partnerships such as Microsoft Gold Partner, Magento Silver Solution Partner, and memberships with Drupal and Joomla. Our focus is delivering innovative, reliable IT solutions that drive measurable business results.

View CIS Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

250 - 999

Team size
Inside Service Listing

California, USA

Location

16

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

16

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 4% Ecommerce Development

  • 20% AI Development

  • 15% Software Development

  • 10% Internet of Things

  • 10% Digital Transformation

  • 10% Cloud Computing Services

  • 8% CMS

  • 7% Mobile App Development

  • 6% Product Engineering services

  • 5% Web Development

  • 5% IT Services

Make the right Choice

AlphaBOLD is a global leader in next-generation business transformation and consulting. We enable clients all over the US to navigate their digital transformation. With collectively three decades of experience managing the systems and workings of global enterprises, we expertly steer our clients through their digital journey. We do this by enabling the enterprise with Dynamics 365 or Oracle NetSuite core, which helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented performance and customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise, and ideas from our innovative ecosystem. AlphaBOLD implements Dynamics 365, SharePoint, Power BI, Oracle NetSuite, and many other custom solutions for its customers. From end-to-end digital implementations to planning, design, development, and roll-out of various business applications, BOLDEnthusiasts can deliver it all. AlphaBOLD has developed vertical-specific solutions for Construction, Manufacturing, and Retail companies to help them reach their true potential. AlphaBOLD also offers add-ons that can be installed easily on existing systems and help boost the productivity of an organization significantly. Our add-ons include BOLD-HI, BOLDSync etc.

View AlphaBOLD Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

15

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

15

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 0% Ecommerce Development

  • 0% Web Design

  • 0% Mobile App Development

  • 0% Web Development

  • 0% Software Development

  • 0% CMS

  • 0% Digital Marketing

  • 0% AI Development

Marketing for Digital Natives

As a world leader in digital services, Grazitti Interactive transforms organizations via the use of social media, cloud, mobile, and artificial intelligence technology. Grazitti has been enabling businesses with cutting-edge SaaS products, services, and solutions since 2008. We have enabled more than 1100 different clients, including Fortune 500 giants, fervent non-profits, and agile SMEs, thanks to our dynamic staff of more than 1200 tech experts spread across the US, India, Australia, Canada, and Singapore.

View Grazitti Interactive Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

1,000 - 9,999

Team size
Inside Service Listing

California, USA

Location

7

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

7

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 60% Ecommerce Development

  • 10% Web Development

  • 10% CMS

  • 10% Web Design

  • 10% Digital Marketing

That's how brands are made the Big, Bold and BRYT way

Unlock Your Business Potential with Our Onshore Digital Solutions At our agency, we pride ourselves on being a 100% onshore team dedicated to elevating your business's customer acquisition and conversion rates. Our expertise spans custom web design, strategic SEO, and highly targeted pay-per-click (PPC) advertising. Custom Web Design & Development We specialize in crafting bespoke websites tailored to meet your unique business needs. Utilizing cutting-edge technologies such as ReactJS, NextJS, Headless CMS, WordPress, and Shopify, we deliver visually appealing and functionally robust web presences. From portfolio sites to intricate web applications, our designs adhere to the latest industry standards and semantic coding practices. Enhanced Search Engine Optimization (SEO) Boost your online visibility with our comprehensive SEO strategies. We implement meticulous on-page optimization, engaging content marketing, effective social media outreach, and organic link-building initiatives to drive quality traffic to your website and convert visitors into loyal customers. Targeted Pay-Per-Click Advertising (PPC) Maximize your marketing ROI with our precisely targeted PPC campaigns. We focus on reaching your ideal audience, ensuring optimal conversion rates while delivering insightful monthly performance reports. This allows us to continuously refine our strategies for unparalleled advertising effectiveness. Partner with us today to transform your online presence and achieve remarkable growth!

View Bryt Designs Profile
Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

2 - 9

Team size
Inside Service Listing

California, USA

Location

6

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

6

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 50% Ecommerce Development

  • 20% Web Development

  • 20% Digital Marketing

  • 10% CMS

ANTI-AGENCY. ALL ACTION.

DYODE is a results-driven eCommerce agency specializing in strategic consulting, custom development, and data-backed digital marketing for growing retail brands. Founded by former heads of eCommerce and powered by seasoned industry experts, DYODE brings real-world retail experience to every engagement. Clients gain more than a typical agency partner—they work with proven eCommerce strategists, performance marketers, skilled developers, and merchandise planning specialists who understand the full customer journey. With a focus on scalable growth, optimized conversions, and measurable ROI, DYODE helps brands build, launch, and scale high-performing eCommerce operations.

View DYODE Inc. Profile
Inside Service Listing

/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

3

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

3

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 25% Ecommerce Development

  • 25% Web Design

  • 25% Digital Marketing

  • 25% Web Development

Strategy, creativity and technology

At Lightspace, we specialize in delivering cutting-edge branding and web development solutions tailored to propel your business forward. As a premier agency, we focus on crafting innovative, data-driven strategies that not only enhance user experience but also deliver measurable results for our partners. Our comprehensive services encompass brand strategy, brand positioning, UI/UX design, and robust development. Whether you are a well-established brand or a burgeoning startup, we have the expertise to elevate your brand and digital presence. Why Choose Lightspace? - Shopify Plus Experts: As official Shopify Plus Partners, we leverage the platform's capabilities to create stunning, high-performing online stores. - Vast Experience: With over a decade of industry experience, we bring invaluable insights to every project. - Remarkable Track Record: Our proven success is evident across more than 340 completed projects, showcasing our commitment to excellence. - Skilled Team: Our dedicated team of 17 professionals collaborates closely to ensure your vision comes to life. Partner with Lightspace and unlock the full potential of your brand through innovative design and development solutions that resonate with your audience. Let’s embark on this journey together!

View Lightspace Profile
Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

3

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

3

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 25% Ecommerce Development

  • 25% Web Design

  • 25% Digital Marketing

  • 25% AI Development

WE MOVE COMMERCE FORWARD

Mira Commerce: Your Premier B2B Digital Commerce Agency Mira Commerce is a leading full-stack digital commerce agency and systems integrator, dedicated to driving impactful eCommerce modernization and infrastructure transformation. We specialize in managing comprehensive, business-driven projects from start to finish, encompassing user experience (UX), design, frontend storefront development, middleware solutions, data orchestration, and backend system integration. Our Core Services Include: - Tailored digital commerce strategy and consulting, including roadmap creation and composable architecture planning. - eCommerce replatforming, frontend redesign, and performance optimization for enhanced user experiences. - Middleware and API orchestration, ensuring seamless integration with ERP, OMS, PIM, DAM, CRM, CDP, and fulfillment systems. - Implementation of headless, MACH, or hybrid architectures for maximum flexibility. - Conversion Rate Optimization (CRO), SEO, and strategic digital merchandising design. - Continuous managed support and optimization to ensure ongoing success. What Distinguishes Us: Mira Commerce combines strategic insight with technical expertise, minimizing vendor handoffs and lowering execution risk. We pride ourselves on a high-touch, collaborative partnership with our clients’ digital teams, supporting sustained growth. Ideal Clients: Our services benefit brands, retailers, distributors, and manufacturers looking to modernize their legacy systems and build agile, scalable commerce infrastructures. We collaborate best with organizations eager for long-term strategic partnerships aimed at sustained growth and digital maturity. Partner with Mira Commerce to transform your eCommerce landscape today.

View Mira Commerce Profile
Inside Service Listing

$150-$199/hr

Hourly Rate
Inside Service Listing

$50,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

3

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

3

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 25% Ecommerce Development

  • 25% Web Development

  • 25% CMS

  • 25% Web Design

Building Powerful WordPress Solutions.

Elevate Your Online Presence with Site Nine Studios: Premier WordPress Development Agency Located in the vibrant city of Los Angeles, California, Site Nine Studios is a leading WordPress development agency dedicated to transforming your digital visions into reality. We specialize in serving Designers, Agencies, and Businesses, offering tailored solutions that cater to your unique WordPress needs. Our expert services encompass a wide range of offerings, including custom WordPress theme development, seamless migrations from other platforms, ongoing WordPress maintenance, and comprehensive website rebuilds. With a wealth of experience, our talented team is equipped to handle projects of any scale and ambition. At Site Nine Studios, we prioritize transparent communication and deliver unparalleled reliability. Our strong partnerships with top-tier agencies have refined our approach, establishing us as a trusted specialty web development provider. We’re committed to being the dependable partner you can rely on for achieving your online goals. Join forces with Site Nine Studios and let us elevate your brand with our exceptional WordPress development services. Contact us today to discover how we can help you succeed in the digital landscape!

View Site Nine Studios Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

2 - 9

Team size
Inside Service Listing

California, USA

Location
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Buyer's Guide

Essential Things to Look for When Choosing an eCommerce Development Firm

Experience in the Industry

Seek out businesses with extensive experience in your sector. Their understanding of problems and solutions unique to your sector can greatly improve the efficiency of your eCommerce platform.

Technological Skills

Ensure the company knows the newest eCommerce platforms and technologies, such as BigCommerce, WooCommerce, Shopify, and Magento. Their technological expertise needs to match the demands of your project.

Case Studies and Portfolios

Evaluate the company's case studies and portfolio to determine its design and development skill level. Look for projects comparable to yours in scale and intricacy to evaluate their skill.

Ability to Customize

It's important to have the capacity to modify your eCommerce platform to satisfy particular business needs. Assess the company's ability to design specialized solutions that improve usability and functionality.

Integration Services

E-commerce platforms often need integration with other systems, such as payment gateways, ERPs, and CRMs. To simplify your operations, ensure the provider has a seamless integration experience.

User Experience and Design

A design that is aesthetically pleasing and easy to use can greatly impact customer engagement and sales. Analyze the company's attention to improving user experience and design aesthetics.

Marketing and SEO Services

Search engine optimization (SEO) is necessary for an eCommerce website to attract organic visitors. Verify whether the company offers SEO services and has a digital marketing plan to increase your online visibility.

Assistance and Upkeep

Post-launch assistance is essential to your eCommerce site's seamless operation. Make sure the business provides thorough maintenance and support services so that any problems can be resolved quickly.

Customer Evaluations and feedback

Client feedback can offer insightful information about the dependability and calibre of the business's services. Look for reviews and suggestions about the business's reputation and customer satisfaction.

Value for Money and Pricing

Although money is an important consideration, it shouldn't be the only one. Check the business's pricing strategy to ensure it provides value for the money regarding the services and quality offered.

How to Select the Best eCommerce Development Firm

Establish Your Needs

Give a clear description of your target market, company objectives, and the features you require from your eCommerce platform. With a clear set of requirements, you can interact more efficiently with possible development partners.

Investigation and Enumeration

Conduct in-depth research to find prospective eCommerce development companies in California. Make an initial list using online directories, reviews, and suggestions.

Review Proposals

Request quotations from companies from the shortlisted companies. Assess them according to how well they understand your needs, suggested fixes, budgets, and schedules.

Author Profile & Expertise

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Head Of Digital Marketing at SelectedFirms

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