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.

United States × California × AI × $25,000 - $50,000 ×Clear Filters
  • Diffco

    VerifiedVerified by the DesignRush team for authenticity and credibility.

    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

    Diffco Services

    • AI Development
    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Web Development
    • eCommerce Development
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Mars
    • Food Rocket
    • FlashGrid
    • Nokia
    • Instreamatic
    • Quire
    • Legionfarm
    • Latoken
    • Genius One
    • Shift
    Data sourced from the agency's DesignRush profile

    Diffco Reviews & Testimonials

    • Oleg Sotnikov
      Oleg Sotnikov CEO at AppMaster
      5.0

      AI Development Review from Oleg Sotnikov

      Diffco built a complex, production-grade AI agentic system and backend for our client's fintech platform owning architecture, AI/ML components, and AI agents in a security- and compliance-sensitive environment. They delivered on time and within budget, communicated proactively, and operated like part of our own team, taking ownership and suggesting better solutions throughout. Deep AI/ML and senior backend expertise. We'd happily work with them again.

    • Julia Platova
      Julia Platova VP Strategic Partnerships at OVA Solutions
      5.0

      Mobile App Development Review from Julia Platova

      We partnered with Diffco for a comprehensive software development project aimed at delivering a mobile application and backend system for our client. The goal was to create a seamless, secure, and scalable solution within a 4-month timeline and $50k-$200k budget.Diffcos team was highly professional from start to finish. They handled everything: UI/UX design, backend architecture, API integration, and deployment.After the launch, they continued to support us with maintenance and performance optimization.The application received positive feedback and has proven stable and scalable.Were highly satisfied with Diffcos expertise, commitment, and ability to deliver real results.

    • Max Shmatkov
      Max Shmatkov Manager at Centerligh
      5.0

      Mobile App Development Review from Max Shmatkov

      As an advantage of working with this company I’d like to note that their Agile development method is amazing! Diffco earned my trust through such approach and the team’s professional attitude.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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

    Closeloop Technologies Services

    • Software Development
    • Web Design
    • Mobile App Development
    • AI Development
    • Wearables
    • Web Development
    • eCommerce Development
    • CRM Consulting
    • Cloud Consulting
    • ERP Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Pacefunding
    • Cordance
    • Premier Talent Partners
    • Omnidian
    • Datacube.ai
    • HomeRun Financing
    • BioStem Technologies
    • UTR Sports
    • AJNA
    • Block & Tam
    Data sourced from the agency's DesignRush profile

    Closeloop Technologies Reviews & Testimonials

    • Rick Tomsic
      Rick Tomsic Founder and Chief Executive Officer at Tradovate, LLC
      5.0

      Software Development Review from Rick Tomsic

      Global business segment growth is requiring technology to keep up with the increase. Our platform is designed to be scalable and able to be implemented across several nations. We collaborated with Closeloop Technologies to work with our staff in order to scale up the programme.An whole agile team is provided by Closeloop Technologies to participate in our programme. At first, we gave them the data in hopes that they would aid in our execution. They have combined Spring Boot, JavaScript, and AWS cloud technologies.The platform is a value stream and full-suite insurance lifecycle. It is an internal iterative software programme.Working with Closeloop Technologies is simple. They pick up new roles rapidly and possess agile team abilities that are industry standard. The staff not only fits right in, but they also contribute their knowledge and perspectives, making them a vital component of the programme.

    • Henrique Dubugras
      Henrique Dubugras Founder and Co-CEO at Brex
      5.0

      Software Development Review from Henrique Dubugras

      Services that had been slow or unavailable for weeks had to be brought back up. We must bring back our vital business role. After learning about our issue, the Closeloop project manager assigned a senior database specialist to address it. Our main programmer had a direct conversation with the database specialist of Closeloop after they listened to our problem and asked some follow-up questions. Within less than two hours, the solution to our issue had been verified and implemented.

    • Bill Rogers
      Bill Rogers Chairman and CEO at Truist
      5.0

      Software Development Review from Bill Rogers

      We occasionally utilize outsourced resources to increase our team's ability to satisfy the commercial demands of our clients. This time, my goal was to create and enhance the products we were providing to clients. Their engineers joined our own team to work on the project, creating MetaTrader-based software for our traders. They assisted us in creating and refining a suite of services that give our clients more functionality; up until that point, the solution had been erratic and unconventional. Their most recent endeavor was the development of an income trading module. We employed a scrum methodology with sprint deliverables and agile planning. Along with narrative points, we also used our in-house bug tracking application for project and task management. Everything was really accurate.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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

    TekRevol Services

    • Mobile App Development
    • Web Development
    • AI Development
    • Staff Augmentation
    • Digital Marketing
    • eCommerce Development
    • WordPress Website Design
    • SEO
    • Software Development
    • Product Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Pure Plank
    • Truth GPT
    • The University of North Alabama
    • Soundly
    • Al Hussaini
    • AMJ Workplace Wellness
    • Selah
    • kinekt
    • Mdrouz
    • Teemates
    Data sourced from the agency's DesignRush profile

    TekRevol Reviews & Testimonials

    • Aleksandra Puzyno I DYWIDAG Concrete
      Aleksandra Puzyno I DYWIDAG Concrete Marketing Manager in DYWIDAG at DYWIDAG Concrete Technologies
      5.0

      Mobile App Development Review from Aleksandra Puzyno I DYWIDAG Concrete

      TekRevol did a great job with our app. They understood what we needed and finished everything on time. Working with them was easy and professional. I recommend them to anyone who wants a good app.

    • Sidra Ansari
      Sidra Ansari Brand Manager at Vitruvian Agency
      4.3

      Web Development Review from Sidra Ansari

      I recently collaborated with Tekrevol for the development and design of our marketing website, and the experience was outstanding. Their team showcased professionalism, creativity, and a deep understanding of web technologies. The communication was clear and effective, ensuring a smooth process from start to finish.The design and functionality of our website exceeded our expectations, making it not only visually appealing but also user-friendly and responsive across all devices. The project was delivered on time and within budget, reflecting Tekrevol's dedication to quality and client satisfaction.I highly recommend Tekrevol to anyone in need of top-quality web development and design services. Their expertise and customer-focused approach truly set them apart.

    • Sara Kraeski
      Sara Kraeski Marketing Manager at Lex Mundi
      5.0

      Mobile App Development Review from Sara Kraeski

      TekRevol created a design aimed at enhancing the website's accessibility, with the anticipation of boosting traffic and conversion rate.Their team representative effectively communicated clear timelines and objectives. Notably, they exceeded expectations and delivered exceptional application development services. Their excellent communication and responsiveness played a vital role in the project's success.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Your Product Engineering & Gen AI Partner

    Simform is a premier digital engineering company specializing in Product Engineering, Cloud, Data, Agentic AI, and Enterprise Platform Innovation. We help enterprises and high-growth ISVs build digital experiences and scalable, enterprise-grade products what work at scale...

    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

    Simform Services

    • Software Development
    • Cloud Consulting
    • AI Development
    • Big Data Analytics
    • DevOps Consulting
    • IoT
    • eCommerce Development
    • UI/UX Design
    • IT Services
    • Managed Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Sony Music (EMI)
    • Pepsico
    • Zep Inc
    • Intralinks
    • Nxt-ID
    • FreeWire Inc
    • Accent Inc
    • Mission Rabies
    • DoggyBnB
    • Drizzle Labs
    Data sourced from the agency's DesignRush profile

    Simform Reviews & Testimonials

    • Andrew Muroff
      Andrew Muroff CEO at Strainprint Technologies Ltd.
      5.0

      Software Development Review from Andrew Muroff

      We worked with Simform for many years ongoing software development on our core product, the Strainprint mobile outcomes tracker for medical cannabis patients. We have only positive things to say about their work product and attention to detail. We highly recommend them and will work with them again.

    • Robel Yemane
      Robel Yemane Head of Engineering at Privilee
      5.0

      Software Development Review from Robel Yemane

      I've been working with Simform for over six months now. The engagement began with bringing our subscription management platform in-house, and we've since expanded the partnership to other projects due to their broad skill set and consistent reliability. They've gone the extra mileeven over weekends and public holidaysto help us move faster when needed. Communication and project management have been excellent, with any issues swiftly addressed. It genuinely felt like Simform was invested in our success. Having worked with similar firms throughout my career, I can confidently say Simform stands out and comes highly recommended.

    • Russ Makhauri
      Russ Makhauri Front-End Engineer at Midas
      5.0

      Software Development Review from Russ Makhauri

      We worked with Simform to hire a front-end engineer for our SaaS platform. The process was well-organized, and their team was professional, responsive, and efficient. They quickly identified a candidate who met our technical requirements and ensured a smooth onboarding process.Simforms communication and project management were strong throughout the engagement. They were proactive in addressing feedback and remained flexible in adapting to our needs. While there is some room for improvement in developer vetting and quality assurance, their overall service was excellent.For companies looking to scale their development teams efficiently, Simform is a reliable partner. Their structured approach, responsiveness, and commitment to client satisfaction make them a great choice. We would recommend them without hesitation.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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

    Wunderdogs Services

    • Branding
    • Web Development
    • Web Design
    • eCommerce Development
    • WordPress Website Design
    • Digital Services
    • Mobile App Development
    • Logo Design
    • Digital Strategy
    • SEO
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Shell
    • Aza (BitPesa)
    • Zeitgold
    • IBM
    • UrbanUs
    • Kraken
    • LucidLink
    • AIGA WILD
    • Sophos Productions
    Data sourced from the agency's DesignRush profile

    Wunderdogs Reviews & Testimonials

    • Denis BĂ©langer
      Denis Bélanger Review from Google
      1.0

      Denis Bélanger's Review Sourced from Google

      Be careful, this site always asks you for more money to be able to release funds. Stay away and do not put any money in. This company is fraudulent.

    • Roman Sobachevskiy
      Roman Sobachevskiy Review from Google
      5.0

      Roman Sobachevskiy's Review Sourced from Google

      Wunderdogs created Mindrock’s visual identity, collateral templates, and our website. We loved working with them and would highly recommend their services — not only they are a great team of creative professionals, but also they know how to work with innovative, high-tech industries, which is a unique focus that served us very well.

    • Alisa Ellie
      Alisa Ellie Review from Google
      5.0

      Alisa Ellie's Review Sourced from Google

      Wunderdogs built our website from scratch, set up marketing strategy and helped us break even in the first three months since launch.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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

    Roboto Studio Services

    • Web Development
    • Web Design
    • UI/UX Design
    • eCommerce Development
    • AI Development
    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Tabby.ai
    • Tray.ai
    • Global Cycling Network
    • Teckro
    Data sourced from the agency's DesignRush profile

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