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
3 Companies-Rankings updated: September 03, 2026
DesignRush assesses agencies using expertise standards and verified client experiences to help you make better decisions. Certain agencies have paid placements.
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 levelFrom 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 developmentCommunicates clearly and consistentlyThinks strategically, not just technicallyDelivers high-quality, scalable workI 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 View All Reviews
eCommerce development experts and Certified Magento Agency with offices in Orange County, Austin and Los Angeles. Brandastic helps ecommerce platform businesses growth with a full spectrum of services from SEO, PPC to web design and development. Also, featured in media outlets such as Yahoo Finance, USA Today...
Top Services:
Web Design
WordPress Website Design
eCommerce Development
Web Development
UI/UX Design
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Location
Orange County, California
Number of Employees
Under 49
Average Hourly Rate
$180/hr
Minimal Budget
$50,000 & Up
Portfolios Count
3 Projects Listed
Brandastic Services
Web Design
WordPress Website Design
eCommerce Development
Web Development
UI/UX Design
Branding
Video Production
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Kingston Technology
Hampton Inn
Girls Scouts
Pioneer Electronics
USC
Data sourced from the agency's DesignRush profile
Brandastic Reviews & Testimonials
Jordan Nassie President at 1Billion.org
5.0★
eCommerce Development Review from Jordan Nassie
Brandastic.com and their team have done an exceptional job on my various websites projects and other marketing campaigns I have launched. Every person on their team is skilled, professional and has great communication. They helped me do a Photoshoot for my e-commerce products. When I needed custom development for a new feature on my non-profit website they did everything I envisioned. I will continue to work with Brandastic in the future.
David Lee Review from Google
5.0★
David Lee's Review Sourced from Google
Working with Brandastic to build our businesses website was a seamless experience. As a legal professional, I needed a site that was not only visually impressive but also technically sound for SEO.Their team excels at WordPress development and truly understands how to translate complex service offerings into a user-friendly interface.Since launching, we’ve seen a noticeable improvement in our digital presence. If you’re looking for a top-tier digital marketing agency in Orange County, I highly recommend Justin / Sandy and the rest of the Brandastic team
Austin Hunter Review from Google
5.0★
Austin Hunter's Review Sourced from Google
Justin and the Brandastic team are great to work with. Communication and planning is A tier. Looking forward to working with them for a long time
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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 View All Reviews