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
7 Companies-Rankings updated: September 05, 2026
DesignRush evaluates each agency using expert assessment and client feedback to inform your choices. Some featured agencies have paid placements.
VerifiedVerified by the DesignRush team for authenticity and credibility.
Build Intelligent Apps for Web, Mobile, Data, AI and Cloud
When organizations need intelligent eCommerce platforms that scale, Azumo builds web and mobile applications using React, Next.js, Node.js, and AWS or Azure infrastructure. Based in San Francisco with a decade of AI development expertise, the firm serves global clients including Facebook, Omnicom, and United...
Top Services:
AI Development
Software Development
Staff Augmentation
Mobile App Development
Big Data Analytics
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Location
San Francisco, California
Number of Employees
100 - 249
Average Hourly Rate
$55/hr
Minimal Budget
$50,000 & Up
Portfolios Count
9 Projects Listed
Azumo Services
AI Development
Software Development
Staff Augmentation
Mobile App Development
Big Data Analytics
DevOps Consulting
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Discovery Channel
Meta
Zynga
Jostens
Assembled Brands
NGL
NCSoft
Twitter
Horoscope.com
Bento
Data sourced from the agency's DesignRush profile
Azumo Reviews & Testimonials
Michael S.
Director at Software Development Company
5.0★
Software Development Review from Michael S.
We selected Azumo to develop our software. We transitioned from another development company, so Azumo was initially responsible for migrating our existing code and environments. We are currently still working with Azumo as our nearshore software development team on adding new items to our software.
Anonymous
CTO at Healthcare Company
5.0★
UI/UX Design Review from Anonymous
Azumo helped us migrate our existing UIs into a new framework, creating reusable components and the infrastructure needed for future development. The developer they assigned became a seamless part of our team, always punctual, responsive, and a great fit overall.
Anonymous
VP Product & Engineering at Sales & Mktg Software Company
5.0★
Software Development Review from Anonymous
Thanks to Azumo’s work, our product is now more scalable, optimized, and ready for a growing user base. Their team has managed the engagement effectively, keeping us updated and addressing any challenges along the way. We’ve appreciated their constant availability and proactive communication.
Reviews verified by DesignRush and sourced from the agency's profile
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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
We Build Technology for Brand Marketers and Agencies
Oshyn partners with some of the world's best brands and creative agencies to create exceptional digital marketing solutions. By providing services, technology, and platforms, we enable creative talent to focus on what they do best: create amazing work...
Top Services:
Web Development
eCommerce Development
DevOps Consulting
Software Development
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Location
Cypress, California
Number of Employees
50 - 99
Minimal Budget
$50,000 & Up
Portfolios Count
5 Projects Listed
Oshyn Services
Web Development
eCommerce Development
DevOps Consulting
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
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
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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