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
9 Companies-Rankings updated: September 05, 2026
All agencies on DesignRush undergo evaluation based on professional expertise and verified client reviews. Please note that certain placements are paid partnerships.
Delve is a physical and digital product innovation firm...
Top Services:
Product Design
Wearables
UI/UX Design
IoT
Design Services
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Location
San Francisco, California
Number of Employees
100 - 249
Minimal Budget
$50,000 & Up
Portfolios Count
6 Projects Listed
DELVE Services
Product Design
Wearables
UI/UX Design
IoT
Design Services
eCommerce Development
Mobile App Development
Digital Strategy
Branding
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Amazon
Audio Technica
Charbroil
Google
Jarden
Pella
Penumbra
Spectrum Brands
Weber
Dexcom
Data sourced from the agency's DesignRush profile
DELVE Reviews & Testimonials
Jim Uphoff
Global Procurement Entertainment Fixture Product Manager at ETC
5.0★
Industrial Design Review from Jim Uphoff
With resources being tight and timelines being even tighter, we partnered with Delve to see if we could get the product to market faster. We were very happy with the communication throughout the process, as well as the final output. Their professionalism and work speak for themselves. We learned a lot while working with Delve and look forward to future projects.
J. O'Neill
Senior Director at Spectrum Brands
5.0★
Industrial Design Review from J. O'Neill
This work with Delve far exceeded our expectations and today is the catalyst for defining our forward looking product road maps.
Dan Kaiser
President at SafetyNet
5.0★
Industrial Design Review from Dan Kaiser
Delve helped deepen our knowledge about design thinking and prototyping the customer’s needs/preferences, which is paying high dividends in quickly building our customer base.
Reviews verified by DesignRush and sourced from the agency's profile
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Tepia is a software company founded in 2012 with over 30 years of experience in web and mobile app development. We are a passionate and agile team of developers, designers, and strategists who are consistently pushing the boundaries of technology...
Top Services:
Mobile App Development
eCommerce Development
Software Testing
Software Development
UI/UX Design
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Location
Costa Mesa, California
Number of Employees
Under 49
Average Hourly Rate
$100/hr
Minimal Budget
$50,000 & Up
Portfolios Count
2 Projects Listed
Tepia Services
Mobile App Development
eCommerce Development
Software Testing
Software Development
UI/UX Design
Web Design
Web Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Marugame Udon
MicroVention
Henry Schein
Meta
Irvine Company
Participant Media
Pujol's Foundation
MoodMe
RELI Solutions Inc.
SleepCenter of Nevada
Data sourced from the agency's DesignRush profile
Tepia Reviews & Testimonials
Dr. Lesley Kirkpatrick, MD
Founder at mindcomb
5.0★
Mobile App Development Review from Dr. Lesley Kirkpatrick, MD
I had a great experience working with Tepia. Abraham, the Founder and CEO, was available, helpful, and actively involved throughout every stage of the process. Kimmy, my assigned project manager, was organized, responsive, and clear in her communication from start to finish.
They anticipated potential obstacles before they became issues and approached everything with a thoughtful, solutions-oriented mindset. The team was consistently proactive, professional, and transparent. I truly appreciated their structure and ability to keep things moving smoothly. I would highly recommend working with Tepia.
Robert Beknazarian
President at RELI - Windows & Doors
5.0★
Mobile App Development Review from Robert Beknazarian
Working with Tepia Co has been an exceptional experience from start to finish. They played a critical role in developing our mobile app for RELI, and I can confidently say they exceeded our expectations on every level
From day one, Tepia demonstrated a deep understanding of both the technical and business sides of app development. They didnt just execute tasks they asked the right questions, challenged assumptions when needed, and helped us think through complex workflows in a way that improved the final product. Their team truly operates as a strategic partner, not just a development vendor The communication was excellent throughout the entire process. We always knew where things stood, timelines were clear, and any issues or changes were handled proactively and transparently. For a project as complex as ours involving pricing logic, user flows, financing options, compliance considerations, and scalability this level of clarity and responsiveness made a huge difference.
What really stood out was Tepias attention to detail and commitment to quality. The app they helped build is stable, clean, intuitive, and built with long-term growth in mind. They were thoughtful about architecture, performance, and future enhancements, which is critical for a company like ours that plans to scale aggressively.
They were also extremely flexible and patient as our requirements evolved (which happens in real-world startups). Instead of pushing back, they collaborated with us to find smart, efficient solutions that aligned with our vision and budget.
If youre a founder or business owner looking for a team that:
Truly understands mobile app development
Communicates clearly and consistently
Thinks strategically, not just technically
Delivers high-quality, scalable work
I highly recommend Tepia Co without hesitation. They have been a trusted partner in bringing RELI to life, and we look forward to continuing to work with them as we grow
Ara Agopian
CEO at Solar Insure
5.0★
Mobile App Development Review from Ara Agopian
I had a great experience with Tepia on our mobile app development. The project was managed very well and finished on time. Thank you Tepia!
Reviews verified by DesignRush and sourced from the agency's profile
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We are a product development studio for innovators, specializing in B2B SaaS platforms for productivity, analytics, marketing, sales, and engineering. We work with serial entrepreneurs, startup founders, and CTOs at industrial enterprises to create time through innovative products...
Top Services:
Web Development
Mobile App Development
CRM Consulting
ECM Consulting
IT Services
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Location
San Francisco, California
Number of Employees
Under 49
Average Hourly Rate
$60/hr
Minimal Budget
$50,000 & Up
Portfolios Count
14 Projects Listed
Gearheart IO Services
Web Development
Mobile App Development
CRM Consulting
ECM Consulting
IT Services
DevOps Consulting
eCommerce Development
Software Development
AI Development
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Appstem Designs and Develops Custom Software To Help Our Clients Solve Complex Business Problems.
Appstem is a full-service mobile strategy, design and development agency, Based in San Francisco, Appstem has delivered over 200 apps with a team of experts specializing in strategy, QA, development and UI/UX design...
Top Services:
Web Design
eCommerce Development
IoT
Mobile App Development
Software Development
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Location
San Francisco, California
Number of Employees
50 - 99
Average Hourly Rate
$150/hr
Minimal Budget
$50,000 & Up
Portfolios Count
5 Projects Listed
Appstem Services
Web Design
eCommerce Development
IoT
Mobile App Development
Software Development
DevOps Consulting
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Tesla
Johnson & Johnson
Zendesk
Kaiser
Monster
Byton
Geisinger
Cambia
Data sourced from the agency's DesignRush profile
Appstem Reviews & Testimonials
Nate Sroor
Review from Google
5.0★
Nate Sroor's Review Sourced from Google
From my initial consultation to the completion of the development process, the entire team at AppStem has been a pleasure to work with. With so many Mobile App Development companies to choose from, it's important to chose one who is willing to understand your needs and clearly outline a game plan before getting into development. If you're looking for more of a partner than just an agency, you're in good hands with AppStem.
Zachary Zimmerman
Review from Google
5.0★
Zachary Zimmerman's Review Sourced from Google
Not sure I would have been able to find a better development team. My app was built to spec and is running great! I would highly recommend them
Ryan Ricketts
Review from Google
5.0★
Ryan Ricketts's Review Sourced from Google
AppStem was able to answer all my questions in regards to designing a mobile app. They brought original ideas and professional aspect to their project for us. My team was extremely happy with the final results. I know I will be going back to them for my mobile app development needs.
Reviews verified by DesignRush and sourced from the agency's profile
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VerifiedVerified by the DesignRush team for authenticity and credibility.Award WinnerRecipient of a Best Design Award for outstanding work.
Digital Evolution For Business
Leading brands turn to us at pivotal moments of digital evolution. Our global creative team fuses story, technology, and design to make experiences that captivate and convert. Our web design agency helps enterprise brands and market leaders navigate digital, evolve profitably, and launch unforgettable...
Top Services:
Product Design
UI/UX Design
Web Development
Web Design
Digital Marketing
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Location
Manhattan Beach, California
Number of Employees
Under 49
Average Hourly Rate
$165/hr
Minimal Budget
$50,000 & Up
Portfolios Count
2 Projects Listed
Isadora Digital Agency Services
Product Design
UI/UX Design
Web Development
Web Design
Digital Marketing
Branding
eCommerce Development
PPC
WordPress Website Design
Digital Strategy
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
News Corp
Razor USA
The Honest Company
Gartner
Logitech
Texas State Technical College
Live Nation
Kelley Blue Book
TravelStore
Brookfield Residential
Data sourced from the agency's DesignRush profile
Isadora Digital Agency Reviews & Testimonials
Michele DiRocco
Review from Google
5.0★
Michele DiRocco's Review Sourced from Google
The team at Isadora Agency is phenomenal to work with. They listened to our needs, addressed any questions quickly yet thoroughly, and made great recommendations throughout each phase of the project. They are incredibly transparent, responsive, and organized, which kept all deliverables of the project on-time and within budget. We felt the success of our project was a top priority for the team at Isadora Agency, which was woven throughout every deliverable.
Aimee Brierly
Review from Google
5.0★
Aimee Brierly's Review Sourced from Google
I have worked with Isadora Digital Agency across multiple projects including a full website redesign to providing ongoing support to for various digital projects. In each capacity I have found the entire team to be responsive, collaborative, and professional. They come prepared with new ideas and are always willing to try to find ways to advance our digital needs. I highly recommend.
Roberto Aponte
Review from Google
5.0★
Roberto Aponte's Review Sourced from Google
I am thoroughly pleased with your companies ability to deliver an exceptional working relationship that has lead to an eloquently executed client experience. Isadora Digital Agency took a much-needed concierge approach to our relationship and helped us define our goals as well as align the expectations of the officers of our company. Our needs and vision were sophisticated but you helped us to achieve our vision through a multitude of legal and compliance challenges while still creating a warm and textured environment for our clients to engage with us. There have been multiple occasions the agency has gone exceptionally above and beyond to make this project a success – had we partnered with some of the other 9 design companies we were engaged with, I don’t feel confident that they would have provided the white glove service that we received from your firm. Let me summarize: Isadora delivers enterprise style service and results with the client engagement and human interaction of a boutique firm.
Reviews verified by DesignRush and sourced from the agency's profile
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Award-Winning Mobile Design & Development Agency with AI Expertise
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...
Top Services:
Mobile App Development
Software Development
AI Development
UI/UX Design
Digital Services
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Location
Los Angeles, California
Number of Employees
100 - 249
Average Hourly Rate
$149/hr
Minimal Budget
$50,000 & Up
Portfolios Count
1 Project Listed
Utility Services
Mobile App Development
Software Development
AI Development
UI/UX Design
Digital Services
Web Development
Digital Strategy
eCommerce Development
Web Design
WordPress Website Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Our Creative Portfolio Smarter Results Across the Web.
Design Sketchers is a comprehensive digital marketing service provider, dedicated to transforming your vision of online presence into a remarkable reality. Our emphasis lies in cultivating robust customer engagement strategies, ensuring an impactful and immersive online experience for your audience...
Top Services:
Web Development
Graphic Design
Logo Design
Digital Marketing
Content Marketing
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Location
Modesto, California
Number of Employees
50 - 99
Average Hourly Rate
$1000/hr
Minimal Budget
$50,000 & Up
Portfolios Count
2 Projects Listed
Design Sketchers Services
Web Development
Graphic Design
Logo Design
Digital Marketing
Content Marketing
eCommerce Development
Social Media Marketing
Web Design
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
iDeal IT TrendLLC
Your Logo Here
Q Cycle Works, LLC
Data sourced from the agency's DesignRush profile
Design Sketchers Reviews & Testimonials
Veronica
Review from Google
1.0★
Veronica's Review Sourced from Google
I agree with the other review. This company claims that they can build websites and that they are located in Modesto, California which is not true. I have been calling them for weeks and so far no response. When I told them that I wanted a refund, they quiclky put some items on the website. They are very dishonest
Aristides
Review from Google
1.0★
Aristides's Review Sourced from Google
Been waiting for my refund I’m happy to see that you don’t really care for clients. Anyone looking to work with you will disappointed and the quality of humans you are thanks for understanding. Thanks for replying to all my emails and text messages. I’ll make sure everybody knows.
Reviews verified by DesignRush and sourced from the agency's profile
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VerifiedVerified by the DesignRush team for authenticity and credibility.
Build it. Run it. Own it.
We embed development teams to build the right AI-enabled custom software, and equip your team to run it...
Top Services:
Software Development
Cloud Consulting
UI/UX Design
eCommerce Development
DevOps Consulting
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Location
San Francisco, California
Number of Employees
Under 49
Minimal Budget
$50,000 & Up
Sketch Development Services Services
Software Development
Cloud Consulting
UI/UX Design
eCommerce Development
DevOps Consulting
Staff Augmentation
AI Development
Software Testing
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
U.S. Bank
Centene Corporation
Maritz
Change Healthcare
Stifel
Reinsurance Group of America (RGA)
bioMerieux
CareSource
CENTEGIX
Purina
Data sourced from the agency's DesignRush profile
Sketch Development Services Reviews & Testimonials
Monica
Review from Google
5.0★
Monica's Review Sourced from Google
Amazing and talented people. I’ve worked for both client and agency side and can can say their partnership is amazing. They truly care about ongoing operations and not just ending it at a project level. Highly recommend! Message me if you want specifics.
John Andesilich
Review from Google
5.0★
John Andesilich's Review Sourced from Google
I own a marketing firm in Troy MO and I recently met with Calvin at Sketch Development Services to discuss a software development project I have been thinking about pursuing. He was very nice, easy to speak to and even though his field is a bit out of my knowledge base, he was able to explain things in a way that made perfect sense. I look forward to working with him and his team in the future and recommend anyone looking for a software or app development company to give them a try.
Reviews verified by DesignRush and sourced from the agency's profile
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