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 04, 2026
DesignRush evaluates each agency using expert assessment and client feedback to inform your choices. Some featured agencies have paid placements.
SynergyTop is a custom software development company
SynergyTop is a healthcare-focused custom software development company offering healthcare platforms, EHR and FHIR integrations, patient portals, telehealth solutions, AI automation, web development, mobile apps and product engineering services...
Top Services:
Web Design
eCommerce Development
UI/UX Design
Web Development
Mobile App Development
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Location
San Diego, California
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
7 Projects Listed
SynergyTop Services
Web Design
eCommerce Development
UI/UX Design
Web Development
Mobile App Development
Software Development
Digital Marketing
ERP Consulting
SEO
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Trimark
Stark
BizCity
Schoolicious
Angel Shave Club
Data sourced from the agency's DesignRush profile
SynergyTop Reviews & Testimonials
Sam Grote
Founder and Chief Executive Officer at Centerpiece Software
5.0★
UI/UX Design Review from Sam Grote
We were developing the next-generation of our key product and wanted to re-envision the UI/UX to be more modern, focused and intuitive. We were pleased with the deliverables, and we admired how the team took the challenge of handling a high-tech application they weren't previously familiar with. A communicative team, SynergyTop was transparent about their process, and their expertise in design resulted in an efficient workflow.
Susan Avarde
Strategic Advisor at Presciant
5.0★
Mobile App Development Review from Susan Avarde
We have partnered with SynergyTop for mobile development projects. We have some bandwidth on this area, but for larger scopes of work which needed to be executed in a short period, SynergyTop supplied a much larger team. SynergyTop offered expertise across many complicated technical specifications, and they skillfully handled large-scale, intensive projects. We appreciates how many resources SynergyTop is willing and able to dedicate at a time, which shows their commitment to the work.
Dudley Gould
VP at Circit
5.0★
Mobile App Development Review from Dudley Gould
SynergyTop successfully launched our app and met our expectations. The team fixed bugs and provided a testing team with impressive skills. SynergyTop had impressive communication skills and was responsive via daily emails and Zoom meetings.
Reviews verified by DesignRush and sourced from the agency's profile
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We provide a full range of services as a full-service mobile app development company, including mobile strategy, design, integration, migration, and upgrade, as well as 24 hour support and maintenance...
Top Services:
eCommerce Development
Mobile App Development
Software Development
Web Development
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Location
Altadena, California
Number of Employees
100 - 249
Average Hourly Rate
$49/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
7 Projects Listed
EbizON Digital Services
eCommerce Development
Mobile App Development
Software Development
Web Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
IT Industry
Fintech Industry
Standard Technology
Data sourced from the agency's DesignRush profile
EbizON Digital Reviews & Testimonials
Derek Ching
Owner at Hawaii's Choice
5.0★
eCommerce Development Review from Derek Ching
I had the pleasure of working with the Ebizon Digital team on our Klaviyo email marketing, Meta (Facebook) campaigns, and Google Ads and I can honestly say they've been outstanding.
They are incredibly responsive, proactive, and reliable, keeping our project on schedule while delivering wonderful ad creatives for our Hawaiis Choice brand. After working with many digital marketers over the years, Ebizon truly stands out with their great communication and consistency.
As someone who isnt very web or tech savvy, I especially appreciated how they took on the heavy lifting with programming, patiently explained their process, and followed through on every promise. The results in email and paid media performance speak for themselves.
I look forward to a long-lasting partnership with Ebizon as we continue building our marketing and sales for Yick Lung Hawaiis Choice, sharing our snacks with customers around the world.
Hannah Khalaf
Marketing Manager at SurfPrep Sanding
5.0★
Shopify Plus eCommerce Review from Hannah Khalaf
Working with Ebizon has been an excellent experience from the start. We brought them on to help with our email and SMS campaigns, including setting up key flowsand within the first month, we've already seen great success. Their team is knowledgeable, fast to respond, and really easy to work with. They've helped us build strong automations and flows that are already making a difference in our customer engagement and sales. Were excited to keep growing with their support!
Daniella Park
owner at Doing It Sober
5.0★
B2B eCommerce Review from Daniella Park
I've been working with Ebizon for several years now, and they continue to exceed my expectations. From SEO to digital email marketing and beyond, their team is knowledgeable, responsive, and genuinely invested in my success. It's rare to find a partner this consistent and dependable highly recommend them to anyone looking to grow their digital presence.
Nitin, Shahin, Prishita and Prerana are excellent communicators and I enjoy working with them all.
Reviews verified by DesignRush and sourced from the agency's profile
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Software, mobile and SaaS application development since 2004.
We are located in beautiful Phoenix, Arizona, and we can meet you in person anywhere in Arizona or Southern California. We have clients coast to coast and we have a long and proud history as a technology advocate for small business. To learn more, call us at 623-845-2747 or visit datatitan.com...
Top Services:
Mobile App Development
Software Development
IT Services
Digital Services
Digital Strategy
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Location
Los Angeles, California
Number of Employees
Under 49
Average Hourly Rate
$100/hr
Minimal Budget
$1,000 - $10,000
Data Titan Services
Mobile App Development
Software Development
IT Services
Digital Services
Digital Strategy
UI/UX Design
eCommerce Development
Web Development
Business Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
United States Air Force
Fidelity National Financial
The University of Texas at San Antonio
Continental Floral Greens
International Insurance Group
Cupid Nation
Blue Sky Communications
Nitti Builders
Edvance Research
Vilore Foods Internationa
Data sourced from the agency's DesignRush profile
Data Titan Reviews & Testimonials
Emma Bowers
Founder, CEO at LabPair, Inc.
5.0★
Software Development Review from Emma Bowers
John Tomblin has served as the software architect and Chief Technology Officer for our software startup, LabPair, for the past two years. During this time John has played an essential role in developing the LabPair software, helping us hone our business model, and plan our launch strategy. I have been delighted with John's services and look forward to our continued partnership.
John enjoys a high degree of success as a developer because he is able to engineer software solutions for a variety of marketplaces, no matter how complex or niched. In additional, he has a highly orchestrated, efficient, time- tested process that he uses to scope software projects and get them programmed to clients' specifications. I have been especially appreciative of how John and his team have been both forthright and accurate in estimating the time and cost associated with project development. By far, my favorite part about working with John is his jovial personality, can-do attitude, and excellent communication skills.
Thomas Canale
Founder at Truppraisal. LLC
5.0★
Software Development Review from Thomas Canale
In 2022, I realized that I needed to find a software development firm capable of designing and developing a SaaS application that would serve the real estate community's need to create reliable, usable, Competitive Market Analysis (CMA) reports, but do so in such a way that also reduced the creation time by as much as 95%. After meeting John and his team, and talking for several weeks about my project, I knew instantly that Data Titan was the right company. Not only were they attentive to every detail of the project, but they also remained vigilant with communications, managing change orders, and keeping to the exact time schedules set for the two-year project, and its numerous phases. Additionally, John's company used 'Scope Atlas', their company's software development application system, to design every screen before any programming work. Having now been through a two-year development process, I realize this project would have never launched without 'Scope Atlas', John's leadership, his senior team, and most importantly, his considerable expertise and insight in the software development sector. I wholeheartedly recommend John and his company for any software or mobile app development project you may be considering. Thank you.
Kara Peterson
Founder at Epic Publisher
5.0★
Software Development Review from Kara Peterson
Have you ever had a dream? Have you envisioned greatness? This is who I am, I had the idea, but it was just out of my grasp. John Tomblin is in the business of making your creativity and genius a reality. When I first reached out to John, I thought I was on one track. I have a habit of seeing the end, but all of the details are distractions and I had not given them any thought. I was completely unaware of the scope of my project. John did a year long scope and sequence with me, that turned into consulting. He showed me that there is so much more than the end product. I have worked with technology companies in the past and they do one thing really well, they develop technology. John looks at the project holistically. From when the consumer/customer first engages with your product, to how they will actually purchase the product, to the ease of use of the technology, to the performance of your product, to the marketing - how will you first find these customers, and so much more. John is detail oriented and very organized. Nothing slips past him because of his methodology with his wireframes. He holds weekly meetings to make sure the client (me) and he have both done our "homework" to move the project forward. The meetings also ascertain that we are both on the same page about the project. Working with John is a pleasure; I look forward to our weekly talks. I am certain that he is "on my side" and is looking out for my best interests. The world has gotten very small and it is easy to find someone to build your product. However, it is not easy to find someone who will listen to your dream, help you reach it, look out for your best interests and whom you can put complete faith in.
Reviews verified by DesignRush and sourced from the agency's profile
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Software & Mobile Application Development Company.
Rushkar Technology Pvt. Ltd. is a premier software development company based in India, renowned for its commitment to delivering high-quality, timely, and cost-effective offshore software and mobile application solutions. At Rushkar, we prioritize long-term relationships and client satisfaction, ensuring that...
Top Services:
Software Development
Mobile App Development
Staff Augmentation
eCommerce Development
Web Development
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Location
Anaheim, California
Number of Employees
100 - 249
Average Hourly Rate
$12/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
2 Projects Listed
Rushkar Technology Pvt. Ltd. Services
Software Development
Mobile App Development
Staff Augmentation
eCommerce Development
Web Development
Software Testing
AI Development
CRM Consulting
IoT
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Our software development project has received exceptional outcomes from Rushkar Technologies. Their devotion to deadlines, strong code quality, and agile technique have proven essential. We at New Icon value their successful use of Scrum methods and integration of CI/CD pipelines. Strongly advised for any purposes pertaining to advanced growth.
Aravind Kumar Thakur
Deputy Manager at KEI INDUSTRIES LIMITED
5.0★
Web Development Review from Aravind Kumar Thakur
I am grateful for the chance this service has given me. I received good, friendly service from Rushkar Technology. They made sure that my specifications were satisfied by providing a multitude of design and formatting possibilities. They also gave access to all the data required to maintain the site's functionality. An amazing team offering a priceless service to the manufacturing of electrical and electronic.
Daniel Ari Feldmar
Chief Operating Officer at Felbro Food Products, Inc
5.0★
Mobile App Development Review from Daniel Ari Feldmar
For our project on food manufacturing, we hired Rushkar. This was made possible by the agency's outstanding support throughout the project, which included proactive problem-solving, innovative solutions, and meticulous attention to detail. At first, reaching a consensus on project objectives was the biggest obstacle, but Rushkar swiftly made plan adjustments and engaged in open communication to address problems. Our business was greatly enhanced by its solution, which also improved consumer involvement. Rushkar continues to be a reliable partner for our upcoming initiatives, even though it might further improve its excellent work with faster reaction times and more service options.
Reviews verified by DesignRush and sourced from the agency's profile
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LevelShift is a Summit-tier Salesforce consulting partner headquartered in Irvine, California, with offices in Asia and the UAE. It offers scalable, on-demand Salesforce services including advisory, implementation, customization, integration, and admin support through a flexible Pay-As-You-Use model. Rated...
Top Services:
Software Development
eCommerce Development
CRM Consulting
Cloud Consulting
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Location
Irvine, California
Number of Employees
100 - 249
Average Hourly Rate
$99/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
4 Projects Listed
LevelShift Services
Software Development
eCommerce Development
CRM Consulting
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Santa Clara University
Jamboree Housing
American Technologies, Inc.
Business Credit Report, Inc.
Solect Energy
Geographic Farming
Gain Capital
HME
Radiological Society of North America
Data sourced from the agency's DesignRush profile
LevelShift Reviews & Testimonials
Krishna chandra
Review from Google
5.0★
Krishna chandra's Review Sourced from Google
Guess my earlier posting didnt make it through. Here it is.
Worked with DemandBlue team and was very happy with their knowledge and execution methodology. They advised us after understanding our needs completely and provided an holistic solution. Their costing plans were nominal and didn't stretch our budgets. Very happy with the deliverables and support after go live. Our next endeavor will still be with them.
Certainly a company that can be trusted for their depth of business domain knowledge and complimenting technical skills.
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Capital Numbers are an award-winning Digital Transformation and Engineering Firm offering end-to-end software development solutions to Enterprises, SMEs, Digital Agencies, and Startups worldwide. Pricing starts at $25/hour...
Top Services:
Web Development
Software Development
Mobile App Development
AI Development
Software Testing
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Location
San Francisco, California
Number of Employees
500 - 999
Average Hourly Rate
$25/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
15 Projects Listed
Capital Numbers Services
Web Development
Software Development
Mobile App Development
AI Development
Software Testing
Staff Augmentation
Cloud Consulting
eCommerce Development
WordPress Website Design
DevOps Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Blac Flag is a full-service creative, development, and growth partner for brands that need more than pretty pictures. We design and build high-performing sites, apps, and automations, then back them with SEO, email, and paid media that actually drive revenue...
Top Services:
Branding
Web Development
WordPress Website Design
Mobile App Development
eCommerce Development
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Location
Los Angeles, California
Number of Employees
Under 49
Average Hourly Rate
$100/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
6 Projects Listed
Blac Flag Services
Branding
Web Development
WordPress Website Design
Mobile App Development
eCommerce Development
Package Design
Web Design
SEO
UI/UX Design
PPC
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Enormac Digital is a San Francisco Bay Areabased digital marketing and web technology agency founded in 2012. Serving startups and SMBs, the team delivers end-to-end servicesfrom responsive WordPress and e-commerce site builds to PPC, SEO, email-marketing platforms, cloud hosting, and ongoing...
Top Services:
Branding
Design Services
Web Design
eCommerce Development
Web Development
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Location
Palo Alto, California
Number of Employees
Under 49
Average Hourly Rate
$33/hr
Minimal Budget
$1,000 - $10,000
Enormac Digital Services
Branding
Design Services
Web Design
eCommerce Development
Web Development
Digital Marketing
SEO
PPC
Email Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
At AlphaSquad Technologies, we transcend mere development to craft transformative digital experiences. With unmatched proficiency in Web Development and Mobile Application Development, we pave the way toward an innovative, digitally evolved landscape. Our specialization lies in pioneering Website Design...
Top Services:
Mobile App Development
Digital Services
Product Design
Web Design
UI/UX Design
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Location
San Francisco, California
Number of Employees
Under 49
Average Hourly Rate
$25/hr
Minimal Budget
$1,000 - $10,000
AlphaSquad Technologies Services
Mobile App Development
Digital Services
Product Design
Web Design
UI/UX Design
Web Development
eCommerce Development
Software Development
Digital Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
A modern digital studio building high-performance websites, SEO systems, and growth platforms for brands that want real results not just visuals...
Top Services:
SEO
Web Design
Email Marketing
Mobile App Development
Digital Marketing
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Location
Roseville, California
Number of Employees
Under 49
Average Hourly Rate
$55/hr
Minimal Budget
$1,000 - $10,000
WebVello Services
SEO
Web Design
Email Marketing
Mobile App Development
Digital Marketing
Web Development
AI Development
eCommerce Development
UI/UX Design
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
GutterFX
Lifetime
Visit Auburn
Fagan Painting
Data sourced from the agency's DesignRush profile
WebVello Reviews & Testimonials
Dima Songrov
Review from Google
5.0★
Dima Songrov's Review Sourced from Google
WebVello did an excellent job building a professional website for my roofing business. The site not only looks great, but it’s structured in a way that actually helps people find me locally on Google. I’m already able to showcase my past work clearly, which has made it much easier to earn trust with new customers. Mark and the team really understand local search, visibility, and how to turn a website into a real business asset. I highly recommend WebVello to any contractor or service business looking to grow online.
Karina Gedarevych
Review from Google
5.0★
Karina Gedarevych's Review Sourced from Google
Working with them was straightforward and stress-free. I didn’t have to chase updates or worry about things falling through the cracks. They handled the design and setup professionally and kept me informed throughout the process. The final website looks modern, loads fast, and fits my business perfectly. I’m very satisfied with the results.
Mark Gedarevych
Review from Google
5.0★
Mark Gedarevych's Review Sourced from Google
Webvello built my website and I’m really happy with how it turned out. They were easy to work with, explained things clearly, and delivered exactly what they promised. The site looks great and runs smoothly. I’d definitely recommend them.
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Esclatech is a leading software development and digital transformation company specializing in Mobile App Development, Web App Development, SaaS Solutions, and AI Automation Services...
Top Services:
Digital Services
IT Services
Mobile App Development
Software Development
CRM Consulting
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Location
California City, California
Number of Employees
Under 49
Average Hourly Rate
$100/hr
Minimal Budget
$1,000 - $10,000
Esclatech Services
Digital Services
IT Services
Mobile App Development
Software Development
CRM Consulting
eCommerce Development
Web Development
UI/UX Design
Web Design
Digital Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
The Hammer Factory
Legacy Roofing Pros
Belladi Remodeling
Data sourced from the agency's DesignRush profile
Esclatech Reviews & Testimonials
Tom Damiano
Owner at Damiano
1.0★
Digital Services Review from Tom Damiano
i hired this company for three months to do some SEO work. About two weeks in I realized how poorly things were worded and just corny and sales-y the language was. I told them to change it over and over and they couldnt do it.
I told them I wanted to cancel and go our separate ways. Now they are currently holding my money and will not give it back.
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