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.
Best California eCommerce Development Agency Rankings
12 Companies-Rankings updated: September 05, 2026
Every agency on DesignRush meets evaluation criteria around expertise and client feedback to empower informed choices. Some listings include paid partnerships.
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 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 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 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
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 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 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 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
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 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 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 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
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 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 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 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
We pride ourselves on delivering innovative, digital experiences that make an impact. Since 2012, weve proudly partnered with start-ups, SMBs, Fortune 500 companies and everyone in between to unlock value through creativity, technology, and business-minded thinking...
Top Services:
Web Design
Web Development
Branding
WordPress Website Design
eCommerce Development
Show more
Location
Los Angeles, California
Number of Employees
100 - 249
Average Hourly Rate
$125/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
4 Projects Listed
Big Drop Services
Web Design
Web Development
Branding
WordPress Website Design
eCommerce Development
SEO
PPC
Digital Marketing
Content Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Semperis
Bank of China
Altice
NYC Health + Hospitals
AMC Networks
Northwell
Moroccanoil
Dataiku
Samsung
Citi
Data sourced from the agency's DesignRush profile
Big Drop Reviews & Testimonials
Brian Yokely VP, Marketing at Strive Health
5.0★
Web Design Review from Brian Yokely
It isn't often that you find a partner like Big Drop and I cannot recommend their fantastic team highly enough. Projects like ours are no small feats and their dedication to producing a successful outcome for us is unparalleled by other agencies. In addition to superior project management, their creative and strategic teams leveraged our brand to develop an aesthetic that is absolutely first-in-class, with functionality to match, and we couldn't have done it without them. I look forward to expanding our collaboration in the future. We needed a website refresh, and Big Drop helped us produce the best possible product. The team's professionalism and expertise were evident throughout the project, resulting in a website that exceeded our expectations. Working with Big Drop was a smooth and productive experience, and we were thrilled with the outcome of our collaboration.
Michele Zappula AVP, Marketing Ops at Semperis
5.0★
Branding Review from Michele Zappula
Big Drop 100% gets who we are and what we need and we trust them completely. Their creative process is iterative and comprehensive, and have become a true extension of our team who has been fortunate to work with their top talent. We are consistently impressed by how well Big Drop brings forward concepts and ideas that have evolved our products and brand, and together, we have delivered some truly amazing items. I have been waiting to work with them, and it has easily been worth the wait. Working with Big Drop was instrumental in refining our brand identity and creating new digital properties. The agency polished our main brand and refreshed two sub-brands. It also developed four new digital assets. The team's creative vision and ability to interpret our goals were pivotal in achieving our desired outcomes. Big Drop's flexibility, knowledge, and commitment ensured it made adjustments to suit our specific needs.
Tiffany Carrell Scaled Onboarding Experience at Square
5.0★
Web Development Review from Tiffany Carrell
We engaged Big Drop to develop a new platform for our Academy community to enhance user experience. From the onset, the agency's commitment to understanding our community's needs has been evident, leading it to craft a tailored plan to address challenges faced by our sellers. Big Drop's proactive approach and dedication to delivering exceptional results guided our engagement, resulting in shared success without encountering any issues during the collaboration. We have been incredibly satisfied with Big Drop, hands down.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Pace Digital is a cutting-edge digital marketing agency offering innovative solutions for businesses. With expertise in SEO, social media marketing, web design, and more, we help clients optimize their online presence and drive targeted traffic. Our team of experts utilizers data-driven strategies to deliver...
Top Services:
Web Development
Mobile App Development
Web Design
eCommerce Development
Branding
Show more
Location
Oakland, California
Number of Employees
1000 & Up
Average Hourly Rate
$70/hr
Minimal Budget
$25,000 - $50,000
Pace Digitals Services
Web Development
Mobile App Development
Web Design
eCommerce Development
Branding
Digital Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Fantasy of Flight
Jet Edge
Bill Hansen Catering
Data sourced from the agency's DesignRush profile
Pace Digitals Reviews & Testimonials
Nancy Undisclosed at Undisclosed
5.0★
Video Production Review from Nancy
I've had the pleasure of witnessing Pace Digitals exceptional creativity and expertise in bringing ideas to life through animation. Their ability to convey complex concepts with visual storytelling is nothing short of impressive. Pace Digitals’ video animation consistently delivers engaging and visually stunning animations that captivate audiences and effectively communicate messages.
Christopher Undisclosed at Undisclosed
5.0★
SEO Review from Christopher
The impact of Pace Digital's SEO service was not only noticeable but also transformative. The surge in international website traffic, improved search engine rankings, and enhanced global customer engagement reinforced the efficacy of their approach. Beyond the numbers, their service has played an instrumental role in positioning my brand as an authority on a global scale.
Nathaiel Lai Undisclosed at Undisclosed
5.0★
Logo Design Review from Nathaiel Lai
Pace Digitals truly exceeded my expectations with their logo design services. Their creative team demonstrated a deep understanding of our brand vision and translated it into a captivating and unique logo. Communication was seamless throughout the process, and they delivered the final design promptly.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
At eQuality Software, we create digital solutions that drive real impact. With over 14 years of experience in mobile app development, our team specializes in designing and delivering scalable, intuitive, and high-performance applications tailored to your business goals...
Top Services:
Mobile App Development
Blockchain
VR/AR
eCommerce Development
IoT
Show more
Location
San Francisco, California
Number of Employees
50 - 99
Average Hourly Rate
$100/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
13 Projects Listed
Equality Software Services
Mobile App Development
Blockchain
VR/AR
eCommerce Development
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Pacaso
Health Monitor
Ivy Wallet: Money Manager
YottaChat
Plamfy: Live Stream Video Chat
Gronda - For Chefs
The Fork - Restaurant Bookings
Zalora - Online Fashion Shopping
Flexigo
InterNations
Data sourced from the agency's DesignRush profile
Equality Software Reviews & Testimonials
Clara Armani Review from Google
5.0★
Clara Armani's Review Sourced from Google
Thanks to Equality Software, our travel app now provides users with the perfect travel experience. The app is user-friendly and full of useful features that keep customers coming back.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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
At SPINX Digital, their team of innovators, digital marketers, and video editors in tech and design, bring skills above and beyond the ordinary to every project...
Top Services:
eCommerce Development
Web Design
Mobile App Development
Branding
Digital Marketing
Show more
Location
Los Angeles, California
Number of Employees
Under 49
Average Hourly Rate
$150/hr
Minimal Budget
$25,000 - $50,000
SPINX Digital Services
eCommerce Development
Web Design
Mobile App Development
Branding
Digital Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Beats Audio
Wet n Wild Beauty
Transwestern
GE Healthcare
Data sourced from the agency's DesignRush profile
SPINX Digital Reviews & Testimonials
Beverly Hills Ghost The Movie Review from Google
5.0★
Beverly Hills Ghost The Movie's Review Sourced from Google
The team at Spinx Digital exceeded our expectations. From the moment I contacted them and began discussing our company’s website design needs and possible solutions, I knew we were in excellent hands.We came to them seeking a redesign. The prior design took seven months to be completed and launched. Given our lack of prior experience with web design, we did not realize how much less arduous the process can be. Even after expending such considerable time and effort, the resulting site was clunky-looking, didn't adapt well, and was overly difficult to manage.The Spinx team not only listened carefully and were very responsive to questions and concerns throughout the redesign process, they delivered an outstanding design that is adaptive to our needs, looks great on all devices and platforms, and is very easy to manage. Not only did they do a terrific job, they had us up and running within a few weeks. I highly recommend Spinx Digital to anyone looking for a top-notch design team that is truly a pleasure to work with.- MissDirection Entertainment, LLC
JRMA Architects Engineers Review from Google
5.0★
JRMA Architects Engineers's Review Sourced from Google
There are design companies, and then there are user experience, design, consulting, interface design, brilliant, and professional. SPINX Digital, is by far all & more.When we decided to redesign our website, our vision was to bring to life our diverse portfolio that define us as a team of Architects & Engineers. We were thrilled when we found SPINX Digital Designs team. They took our portfolio and made it come to life.The level of experience, thought and care that went into our website was amazing! Not only have we been constantly amazed at the depth of understanding on many different business models, we found ourselves working with a team of friends.We highly recommend anyone looking for the best customer experience and professional designs. We feel that in this business we let the work do the talking and the portfolio and ethics of SPINX Digital clearly speaks for itself.Thanks so much for creating a website that speaks to what our company motto is – clean, clear, and concise.From your friendsJRMA Team
Tameka Flores Review from Google
5.0★
Tameka Flores's Review Sourced from Google
We were looking for a web design company that could lead the launch of three new websites to help drive our business. We selected Spinx Digital and couldn’t be happier! Spinx has truly become a trusted partner and one that we rely on to bring our visions to life, no matter how detailed they are. Their quality of work is top notch and so is their responsiveness and support. I know that I can always count on them to keep our websites looking and performing at their very best. I highly recommend Spinx Digital for any company looking to take their websites and digital marketing efforts to the next level.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
We Are Focused on Making Things Work for You and Your Business!
COFA Media uses a people-based approach to deliver exceptional branding services. Their digital marketing team focuses on each client's unique audience, which results in a high client satisfaction rate. Some of COFA Media's core services include e-commerce, website design, social media, SEO, interaction & UX...
Top Services:
eCommerce Development
WordPress Website Design
Mobile App Development
eCommerce
Branding
Show more
Location
Carlsbad, California
Number of Employees
Under 49
Average Hourly Rate
$125/hr
Minimal Budget
$25,000 - $50,000
Cofa Media Services
eCommerce Development
WordPress Website Design
Mobile App Development
eCommerce
Branding
SEO
Digital Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Dexcom
HayHouse
Toyota
Bosch
Ra Medical
Alerian
Burton
Club Med
WD-40
Bumble Bee
Data sourced from the agency's DesignRush profile
Cofa Media Reviews & Testimonials
Cody B Review from Google
5.0★
Cody B's Review Sourced from Google
Extremely professional team and talented designers. I've worked with many teams in digital marketing but Cofa Media is my first choice if the business needs a serious marketing platform and wants to grow there business online.
Chad Dannecker Review from Google
5.0★
Chad Dannecker's Review Sourced from Google
Edwin and his team did some website work for us and I highly recommend them. I got straight answers, quality work and they were accountable to delivering everything they said they would. My experience was a good one and in the digital space, I've been disappointed by many large companies. I highly recommend!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
At Hounder, we are passionate about helping our clients create meaningful digital products and experiences that deliver results. We ensure projects receive the focus they need to be done correctly and on schedule – reducing cost and risk for all stakeholders involved. Our success is measured solely by how...
Top Services:
eCommerce Development
Web Design
Web Development
Software Development
CRO
Show more
Location
Redlands, California
Number of Employees
Under 49
Average Hourly Rate
$300/hr
Minimal Budget
$25,000 - $50,000
Hounder Services
eCommerce Development
Web Design
Web Development
Software Development
CRO
SEO
Product Design
PPC
Cloud Consulting
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
We dig deep in order to fully understand the values, vision and mission of the companies we champion. From this uniquely ownable positioning, we create a design translation that conveys a distinct message destined to connect and resonate with your core audiences...
Top Services:
Creative Services
Web Design
Web Development
Branding
Digital Marketing
Show more
Location
San Diego, California
Number of Employees
Under 49
Average Hourly Rate
$150/hr
Minimal Budget
$25,000 - $50,000
RocketDog Communications Services
Creative Services
Web Design
Web Development
Branding
Digital Marketing
UI/UX Design
Social Media Marketing
Advertising
Graphic Design
eCommerce Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Microsoft
Expedia
Girls Scouts of the USA
Evergreen Healthcare
University of Washington
Concur
JeffreyM Consulting
Data sourced from the agency's DesignRush profile
RocketDog Communications Reviews & Testimonials
Ryan Stevens Review from Google
5.0★
Ryan Stevens's Review Sourced from Google
I've worked with Michael and RocketDog's San Diego location. Michael is incredibly knowledgeable on marketing, branding and building websites that produce quality leads for your business. Michael's passion for marketing and helping grow your business is evident in every conversation. You will be astonished with what he can do using the latest AI tools to build a marketing plan that is targeted for your ideal customers. Contact Michael today if you want to grow or rebrand your business!
Clayne Wheeler Review from Google
3.0★
Clayne Wheeler's Review Sourced from Google
Web service was great, but they could work on their customer service. It would take literally weeks to get back to me on some questions.I finally had to find an outside service to be able to handle simple request like adding video to my site.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews