Our expert analysts have ranked the best eCommerce development companies in California that build intuitive online stores to help you turn visitors into paying customers. Filter them by portfolios, budget, client reviews, industry reputation and more to find the right fit for your brand.

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.

United States × California × AI × $25,000 - $50,000 ×Clear Filters
  • Your trusted AI software development partner

    Diffco builds Magento and Shopify web stores for retail and eCommerce clients, including grocery delivery platform Food Rocket, from its Silicon Valley base. The 2008-founded eCommerce company also specializes in AI and custom software development, having delivered 1,150+ projects overall...

    Top Services:

    • AI Development
    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Web Development
    • Show more
    Location
    San Jose, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $110/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    31 Projects Listed
  • Bringing awesome ideas to life

    Closeloop Technologies provides solutions for eCommerce Development that elevate online retail through tailored digital experiences. Our proven strategies drive excellence in every custom software and UI/UX design project we handle, ensuring seamless integrations and scalable growth for your business...

    Top Services:

    • Software Development
    • Web Design
    • Mobile App Development
    • AI Development
    • Wearables
    • Show more
    Location
    Mountain View, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    31 Projects Listed
  • Your Vision. Our Expertise. Shaping the Future!

    TekRevol is a globally recognized digital innovation company with 10 years of experience delivering high-impact mobile applications, AI-powered software, and scalable digital products. Every engagement begins with a clear roadmap, defined KPIs, and a commitment to measurable business outcomes...

    Top Services:

    • Mobile App Development
    • Web Development
    • AI Development
    • Staff Augmentation
    • Digital Marketing
    • Show more
    Location
    San Francisco, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    46 Projects Listed
  • Your Product Engineering & Gen AI Partner

    Simform is a premier AI-native digital engineering company specializing in Product Engineering, Agentic AI, Data, Cloud and Enterprise Transformation. We help enterprises and high-growth ISVs build sophisticated AI-integrated digital solutions and scalable platforms...

    Top Services:

    • Software Development
    • Cloud Consulting
    • AI Development
    • Big Data Analytics
    • DevOps Consulting
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed
  • Building Brands for High Growth Companies

    From cohesive brand systems to high-performing websites, to data-driven marketing strategies and content that resonates with diverse audiences, we deliver scalable solutions that help you lead; whether you're a mission-driven startup, an investor, an enterprise, or a nonprofit...

    Top Services:

    • Branding
    • Web Development
    • Web Design
    • eCommerce Development
    • WordPress Website Design
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    25 Projects Listed
  • The best Next.js & Sanity agency

    Roboto Studio is a Next.js and Sanity agency in San Francisco. We build headless content platforms for companies that have outgrown their CMS, so marketing teams can publish without waiting on a developer. Recent work includes Tray.ai, Topaz Labs and Slingshot Bio...

    Top Services:

    • Web Development
    • Web Design
    • UI/UX Design
    • eCommerce Development
    • AI Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed
  • Boutique Engineering Studio

    EltexSoft is a boutique engineering studio of 35 to 50 senior developers, building web, mobile, and AI products for startups and established companies since 2015. We embed as a long-term extension of your team, the engineers who scope the work are the ones who ship it...

    Top Services:

    • eCommerce Development
    • AI Development
    • Web Development
    • Software Development
    • Mobile App Development
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    3 Projects Listed

Why companies trust DesignRush

Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
129,437+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
47%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
7

Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.

See how rankings and monetization work.