Best E-commerce Website Development Companies in the USA - SIIT

Selling online isn’t just about having a website anymore. You’ve got to think about user experience, mobile checkout, SEO, backend tools, and how it all plays with your inventory and shipping. That’s a lot to get right. Thankfully, there are companies out there that do this stuff every day. Whether you’re launching your first online store or upgrading to something that can actually scale with your business, finding the right e-commerce development partner makes all the difference.

In this article, we’re digging into the teams across the USA that know how to build e-commerce sites that aren’t just pretty, but actually perform. These aren’t one-size-fits-all shops. They work with different platforms, different industries, and bring in the kind of practical experience that helps stores grow, not stall. Let’s get into it.

1. A-listware

At A-listware we help businesses build digital products, strengthen internal systems, and scale teams with experienced engineers. Our core work involves building custom applications and e-commerce website development, along with providing ongoing infrastructure support and consulting. Most of our clients come to us when they need dedicated developers, not just freelancers, who can join their team full-time and handle everything from backend architecture to frontend UI to QA testing.

Our teams work from various parts of Europe, but we operate globally, with offices in the UK and the US. We don’t take a one-size-fits-all approach – each project is scoped and structured around the client’s goals, whether it’s a short proof-of-concept, a full product build, or a long-term partnership. In the ecommerce space, we’ve worked with brands to build customer-facing online stores, back-office tools, and product management systems. We’re comfortable working with both B2B and B2C setups and can step in at any stage, from planning to launch to scaling.

Key Highlights:

Offices in the UK and US with teams across Europe
Offers full-cycle software development and support
Strong experience in ecommerce and retail platforms
Provides dedicated engineering teams with flexible engagement models
Supports multiple industries including fintech, healthcare, real estate, and manufacturing

Services:

Custom ecommerce software development
UI/UX design for web and mobile
Legacy software modernization
Web and mobile application development
Cloud infrastructure and DevOps services
Software product development
QA and testing services
Data analytics and business intelligence
IT consulting and project scoping
Cybersecurity and system protection
Dedicated team hiring and team augmentation
ERP, CRM, and HR software solutions
eLearning and collaboration platforms
IT support and help desk services

Contact Information:

Website: a-listware.com
Phone: +1 (888) 337 93 73
Email: info@a-listware.com
Address: North Bergen, NJ 07047, USA
LinkedIn: www.linkedin.com/company/a-listware
Facebook: www.facebook.com/alistware

2. Spiral Scout

Spiral Scout is a US-based software development company with offices in San Francisco and Charlotte, working across a range of digital projects, including e-commerce website development. Their approach to building e-commerce platforms focuses on technical precision, conversion-focused design, and long-term maintainability. Rather than pushing one platform, they offer tailored development using Shopify, Magento, WooCommerce, or custom setups depending on what fits best. They’re also comfortable working with headless architectures and multi-channel integrations when the project calls for more flexibility.

What stands out in their work is the mix of full-stack development and practical e-commerce know-how. They don’t just launch storefronts – they build scalable sales platforms with smooth checkout flows, clean interfaces, and backend systems that connect with inventory, fulfillment, and payment tools. On top of that, they weave AI features into the mix when needed, like automated product recommendations or smarter stock updates. Their team works with businesses of all sizes and tends to lean into projects where the technical side needs as much attention as the customer-facing side.

Key Highlights:

E-commerce development with Shopify, Magento, BigCommerce, or custom builds
Supports headless commerce and multi-channel sales
AI-enhanced features for automation and personalization
Scalable platforms designed for long-term growth
US-based leadership with global engineering support

Services:

Custom e-commerce website development
Shopify store design and customization
UX/UI design and brand adaptation
Checkout flow optimization and integrations
Progressive Web App (PWA) development
Headless architecture and API integrations
E-commerce performance tracking and ongoing support
Inventory, fulfillment, and payment system integrations
AI-powered recommendation systems and automation features
Technical consulting and post-launch training

Contact Information:

Website: spiralscout.com
E-mail: team@spiralscout.com
Facebook: www.facebook.com/SpiralScout
Twitter: x.com/spiralscout
LinkedIn: www.linkedin.com/company/spiral-scout
Phone: (415) 903-0235

3. Ziffity

Ziffity is a US-based IT services provider focused on delivering end-to-end e-commerce development across a wide range of platforms. They work with both B2B and B2C clients, offering a mix of implementation, customization, and migration support. Their team is trained in major platforms like Adobe Commerce (Magento), Salesforce Commerce Cloud, Shopify Plus, BigCommerce, and Shopware, giving them flexibility to align tech choices with business requirements. They’re especially active with brands looking to scale or shift platforms without losing key integrations or performance.

Their work tends to combine structured delivery with hands-on platform expertise. They provide tailored UI development, build Progressive Web Apps, and manage complex replatforming projects using phased approaches. For companies looking to stretch what their e-commerce platform can do, Ziffity also develops custom extensions and tweaks system logic to meet unique workflows. They don’t just build what’s needed today but prepare the setup for changes and additions later down the line. Their approach is more about getting practical results than trying to oversell tech for its own sake.

Key Highlights:

Works with Magento, Shopify Plus, BigCommerce, Shopware, and Salesforce Commerce Cloud
Offers phased migration services for minimal disruption
Strong focus on frontend customization and UI development
Provides custom development and third-party integrations
Supports both headless and traditional e-commerce builds

Services:

E-commerce platform implementation
Custom theme development and UI/UX design
Migration and replatforming
PWA development for mobile-like web experiences
Extension development and system customization
Headless commerce architecture
Integration with third-party tools and CMS
Ongoing maintenance and support for e-commerce platforms

Contact Information:

Website: www.ziffity.com
Phone: +1-915-205-4300
Email: contactus@ziffity.com
Address: 101 E.Park Blvd, Suite 600, Plano, TX 75074
LinkedIn: www.linkedin.com/company/ziffity

4. CMARIX

CMARIX is a US- and India-based development company that offers tailored e-commerce website solutions across a range of industries and platforms. They’re involved in both standard builds and more complex systems where businesses need tighter integrations, platform migrations, or custom feature development. Their team works with platforms like Magento, Shopify, WooCommerce, Drupal, and WordPress, depending on what aligns best with the business model. Whether it’s a startup building its first online store or an enterprise managing large-scale product catalogs, they approach each project with a structure that covers both design and long-term support.

In terms of how they handle e-commerce, CMARIX puts a lot of emphasis on usability, performance, and tech flexibility. Their process tends to be methodical, from early discovery through to deployment, with plenty of checkpoints along the way. They also deal with PWA builds, security protocols, and platform compliance, which is helpful for companies aiming to scale or operate across regions. Their dev teams are involved with frontend UX, backend systems, and even post-launch support, depending on what stage a client is in. They’re often brought in when businesses need more than just a store template and want a setup that actually fits into broader operations.

Key Highlights:

Offers e-commerce development on Magento, Shopify, WooCommerce, WordPress, and Drupal
Handles full rebuilds and phased migrations across platforms
Includes PWA development and support for mobile web optimization
Provides compliance-focused and security-aware development
Works with startups, SMEs, and enterprise-level e-commerce teams

Services:

Custom e-commerce website development
Platform migration and replatforming
UI/UX design and theme customization
PWA and mobile-first store development
Backend customization and API integrations
WordPress and WooCommerce development
Magento and Shopify store builds
Ongoing support, maintenance, and updates
Agile-based development with dedicated teams
Technical consulting and scope planning

Contact Information:

Website: www.cmarix.com
Phone: +1 415-704-4242
Email: biz@cmarix.com
Address: 32572 Miller Ct. Temecula, CA 92592
LinkedIn: www.linkedin.com/company/cmarix
Facebook: www.facebook.com/cmarixinfotech
Instagram: www.instagram.com/cmarixinfotech
Twitter/X: x.com/cmarixinfotech

5. Webkul

Webkul is an e-commerce development company working with a wide range of platforms and tools to build scalable online stores, marketplaces, and mobile commerce solutions. They support both B2B and B2C models, with additional flexibility for multi-vendor setups. Their work covers full platform development, backend integrations, custom theme design, and support for mobile shopping across devices. They often partner with businesses looking for technical depth in e-commerce architecture, especially those who need to connect storefronts with tools like ERP, CRM, and inventory systems.

In addition to store builds, Webkul develops and maintains a suite of open-source tools and extensions, with contributions to platforms like Odoo, Bagisto, and Magento. This focus on modular, extensible systems helps them deliver highly tailored e-commerce setups while still keeping workflows efficient. Their team also handles custom features like marketplace dashboards, payment systems, shipping tools, and performance tuning. Most of their work leans toward helping clients set up infrastructure that will grow with their business, not just something that looks good on launch day.

Key Highlights:

Works with Magento, WooCommerce, Shopify, Odoo, and other major platforms
Supports multi-vendor marketplace development for B2B and B2C use cases
Strong open-source contribution and plugin ecosystem
Handles ERP, CRM, and inventory system integrations
Offers mobile-friendly and headless commerce builds

Services:

Custom e-commerce website design and development
Marketplace development (single or multi-vendor)
Mobile commerce solutions and app development
UI/UX design and theme customization
PWA and AMP development for performance
Payment gateway and shipping system integration
SEO optimization and digital marketing support
CRM, ERP, and POS integrations
API development and backend customization
Post-launch support and maintenance

Contact Information:

Website: webkul.com
Address: Webkul Software, 1202 North Market Street, Suite 111 Wilmington, DE – 19801
LinkedIn: www.linkedin.com/company/webkul
Facebook: www.facebook.com/webkul
Instagram: www.instagram.com/lifeatwebkul
Twitter/X: x.com/intent/webkul

6. Oyova

Oyova provides e-commerce development services with a focus on Shopify and WooCommerce platforms. Their approach is less about throwing trendy features at a site and more about crafting something that actually supports how a business sells. They work with both startups and established companies, adjusting the scale and complexity based on where the client is in their growth. While they’re deeply involved in the build process, they also tend to stay in the loop post-launch with ongoing support, SEO, and system updates to keep the site running smoothly and performing well.

They lean into customization, especially when it comes to aligning storefronts with a brand’s existing website or backend setup. For B2B e-commerce projects, they focus on practical things like bulk ordering, custom pricing options, and streamlined user flows that match how people actually shop in a business context. Oyova also handles integration work, whether that means connecting inventory systems, third-party tools, or adding features like advanced analytics and custom payment terms. It’s less about flashy design and more about building something stable, usable, and built to scale.

Key Highlights:

Specializes in Shopify and WooCommerce e-commerce builds
Handles both B2C and B2B storefronts, including bulk ordering and custom pricing
Supports system integration with CRMs, ERPs, and inventory tools
Focuses on performance, mobile responsiveness, and SEO
Works on a strategy-driven development process with long-term support

Services:

Custom Shopify and WooCommerce development
E-commerce platform migration and upgrades
B2B e-commerce website development
Responsive UX/UI design for online stores
SEO optimization and performance tracking
Integration with CRMs, ERPs, and payment gateways
Custom theme and plugin development
Post-launch maintenance and feature expansion
ADA compliance and security audits
Digital marketing support for e-commerce growth

Contact Information:

Website: www.oyova.com
Phone: 904.322.8820
Email: info@oyova.com
Address: 1719 Penman Rd., Jacksonville Beach, FL. 32250
LinkedIn: www.linkedin.com/company/oyova
Facebook: www.facebook.com/oyovausa
Twitter/X: x.com/oyovausa

7. Wisitech

Wisitech is a digital solutions company that provides e-commerce development services for businesses of different sizes and across industries. Their approach combines web development, UX/UI design, and digital marketing to deliver tailored online stores that integrate with internal systems. They work with platforms like Shopify, WooCommerce, CS-Cart, and Magento, and often consult on choosing the right one based on the client’s structure and goals. Their team also supports end-to-end e-commerce setup, from store design to backend development and marketing rollout.

They place emphasis on usability, mobile responsiveness, and secure transactions, along with marketing features like SEO, social media ads, and marketplace integrations. Clients include startups and larger companies looking for support in areas like product catalog design, conversion optimization, and platform-specific SEO. The company also works on integrating tools like payment gateways, inventory management, and CRM systems into the e-commerce setup. Their projects are usually customized with a focus on real-world performance rather than visual presentation alone.

Key Highlights:

Offers development for Shopify, WooCommerce, CS-Cart, Magento, and other platforms
Supports integration with internal systems, including inventory and payment tools
Designs mobile-friendly e-commerce websites with user-focused navigation
Also covers digital marketing, SEO, and social platform ad campaigns
Experience spans multiple sectors, including retail, publishing, and electronics

Services:

E-commerce website development
Custom UX/UI design for online stores
Shopify and WooCommerce store setup
CS-Cart and Magento solutions
Product page optimization and content support
Secure payment gateway integration
Mobile app development for e-commerce
SEO and social media marketing for e-commerce growth
Marketplace support (Amazon, Etsy, Walmart, etc.)
Ongoing maintenance and performance updates

Contact Information:

Website: www.wisitech.com
E-mail: partho.m@wisitech.com
Facebook: www.facebook.com/WisitechInfoSolution
Twitter: x.com/WisitechInfo
LinkedIn: www.linkedin.com/company/wisitech
Instagram: www.instagram.com/wisitechinfosolutions
Address: 13785 Research Blvd #125 Austin, TX 78750
Phone: 888.680.0174

8. FJ Solutions

FJ Solutions works with companies that need help launching or growing their e-commerce operations. They’ve been around since the early 2000s and have gradually expanded from custom CMS work in Europe to a broader e-commerce development focus in the US. Their team now supports brands through web development, digital marketing, and ongoing support for platforms like Shopify and WordPress. Their work often involves aligning remote teams, optimizing for SEO, and building systems that tie into sales workflows and customer retention strategies.

They handle both the technical and marketing sides of e-commerce, which includes Shopify app development, migration from other platforms, and theme customization. Beyond store builds, they work on email flows like cart recovery and welcome sequences, and run launch campaigns to get stores performing right from the start. They also assist clients with SEO and CRO, making sure the site gets traffic and that traffic actually converts. Their projects have included work with both nonprofit and commercial brands, including those in beauty, education, and retail.

Key Highlights:

Active in the e-commerce space since 2004
Works with Shopify, WordPress, and custom platforms
Offers SEO-focused development and conversion rate improvements
Manages distributed teams across several countries
Has experience in both B2C and nonprofit sectors

Services:

Shopify development and migration
WordPress and WooCommerce customization
Custom Shopify app and theme development
Ongoing maintenance and store optimization
Conversion rate optimization (CRO)
E-commerce SEO setup and audits
Email marketing automation (cart abandonment, welcome flows)
Launch campaign planning and execution
Remote team setup and coordination for e-commerce projects

Contact Information:

Website: www.fjsolutions.com
Address: 1201 Brickell Ave 205 b, Miami, FL 33131, United States
LinkedIn: www.linkedin.com/company/fjsolutions
Facebook: www.facebook.com/fjinternetmarketing
Instagram: www.instagram.com/fjsolutions
Twitter/X: x.com/fjsolutions

9. Storm Brain

Storm Brain is a digital agency that builds custom e-commerce websites for businesses that want more than a basic online store. Based in California with additional offices in New York, they focus on creating digital storefronts that don’t just look good but also support marketing efforts, SEO, and conversion strategy. Their work tends to be tailored, combining e-commerce development with branding, content, and marketing under one roof.

Their e-commerce services cover both front-end and back-end development, including Shopify and WordPress builds. They handle architecture, design, and development, but also support clients with conversion rate optimization, email marketing, and ad campaigns. For companies that need content production alongside web development, Storm Brain also offers video, photography, and copywriting services. Their project list includes brands across entertainment, beauty, health, and retail.

Key Highlights:

Builds e-commerce platforms using WordPress, Shopify, and WooCommerce
Offers full-stack development plus CRO and SEO support
Combines design, marketing, and content into web projects
Has offices in San Diego, Los Angeles, and New York
Works with brands in beauty, lifestyle, and retail sectors

Services:

E-commerce website design and development
Shopify and WordPress store builds
UI and UX design
CMS implementation and support
Conversion rate optimization (CRO)
Content strategy, copywriting, and video production
SEO and paid media campaign setup
Email and social media marketing
Managed hosting and website maintenance

Contact Information:

Website: stormbrain.com
Address: 2150 W Washington St, San Diego, CA 92110, USA
LinkedIn: www.linkedin.com/company/storm-brain
Facebook: www.facebook.com/San.Diego.Web.Design.SEO
Instagram: www.instagram.com/stormbrainagency
Twitter/X: x.com/stormbrain

10. Staylime

Staylime focuses entirely on Magento-based e-commerce development, working with clients that require tailored solutions built on Adobe’s platform. Based in Redwood City, California, they support businesses at different stages of their Magento journey, from full builds and migrations to custom extensions and multi-store deployments. Their client portfolio includes both B2B and B2C companies, as well as third-party agencies that need help executing Magento projects with reliable engineering and design expertise.

Their team works across all available Magento variants, including Open Source, Magento Commerce, and Magento Commerce Cloud. Whether it’s starting from scratch or improving an existing store, they handle projects that involve custom design, theme development, API integrations, and marketplace builds. They also step in when things go off-track, offering project rescue for clients stuck with underperforming vendors. While the company doesn’t spread itself across multiple platforms, their deep focus on Magento allows them to cover everything from backend customizations to frontend UX work.

Key Highlights:

Dedicated Magento development company
Provides support for all Magento platforms, including Open Source and Commerce Cloud
Handles project rescue for underperforming or abandoned Magento builds
Works with direct clients and as a development partner for third-party vendors
Offers integration support and headless Magento development

Services:

Custom Magento website development
Magento theme design and development
Magento extension development
Migration from other platforms to Magento
Magento API and headless architecture builds
Marketplace and multi-store setup
Magento Open Source and Commerce implementations
Magento project rescue and troubleshooting
Ongoing maintenance and performance optimization

Contact Information:

Website: staylime.com
Phone: 774-421-9978
Email: hello@staylime.com
Address: Staylime Inc., 541 Jefferson Ave, Suite 100, Redwood City, CA 94063
LinkedIn: www.linkedin.com/company/staylime
Facebook: www.facebook.com/staylimedigital
Instagram: www.instagram.com/staylime

11. *instinctools

*instinctools works with companies looking to build or modernize e-commerce platforms, focusing on tailored software solutions that match specific business goals. Their team supports both custom and platform-based e-commerce builds, with options for B2B and B2C stores, multi-vendor marketplaces, and systems integrations. Their e-commerce work is part of a broader software offering that includes cloud services, enterprise automation, and AI-driven product engineering.

They design and develop websites using tools like Shopify, WordPress, Joomla, and SAP Commerce Cloud. For businesses with more complex needs, they create custom front-end and back-end systems and provide ongoing maintenance. They also help companies run technical audits and offer optimization services to boost performance, improve user experience, and align IT with business objectives. The team has a presence in the US and Europe, and they support flexible models like staff augmentation and dedicated teams for long-term collaboration.

Key Highlights:

Offers both custom and platform-based e-commerce builds
Combines software engineering with UX, data, and AI expertise
Provides flexible delivery through staff augmentation and offshore teams
Supports marketplaces, B2B portals, and customer-facing storefronts
Works across the US and Europe with distributed teams

Services:

E-commerce website design and development
Front-end and back-end engineering for online stores
Shopify, Joomla, WordPress, and SAP Commerce Cloud implementation
Custom CRM, ERP, SCM, and PIM integrations
Website audit and design optimization
Conversion rate and UX improvements
Support and maintenance for live platforms
E-commerce consulting and MVP development
Mobile-friendly and headless commerce builds

Contact Information:

Website: www.instinctools.com
Phone: +1 202 821 42 80
Address: 12430 Park Potomac Ave, Unit 122 Potomac MD 20854.
LinkedIn: www.linkedin.com/company/instinctoolscompany
Facebook: www.facebook.com/instinctoolslabs
Instagram: www.instagram.com/instinctools
Twitter/X: x.com/instinctools_EE

12. TekRevol

TekRevol operates as a digital product development company with a wide portfolio that includes mobile apps, software platforms, and e-commerce solutions. Their e-commerce web development services support businesses in designing, building, and maintaining online retail platforms using popular frameworks such as Shopify, Magento, WooCommerce, and BigCommerce. Their approach combines technical execution with a focus on user experience and scalability across both B2B and B2C channels.

Their team provides full-cycle support, from UI/UX design and backend development to platform migration and API integrations. For more complex builds, they also deliver headless commerce setups, multi-store systems, and marketplace environments. TekRevol caters to a variety of industries including retail, electronics, healthcare, and fitness. They apply different engagement models such as project-based, dedicated teams, or staff augmentation depending on client needs.

Key Highlights:

Offers platform-specific and custom-built e-commerce solutions
Supports headless commerce and modular architecture
Works with B2B, B2C, subscription-based, and multivendor models
Includes planning, design, development, QA, and support phases
Covers both front-end and back-end development

Services:

Custom e-commerce website development
Shopify, Magento, WooCommerce, and BigCommerce builds
UI/UX design for mobile and desktop shopping experiences
Backend development using modern tech stacks
Headless commerce implementation
Third-party API and payment gateway integration
Platform migration and performance optimization
Multi-store and online marketplace development
Ongoing maintenance and technical support

Contact Information:

Website: www.tekrevol.com
Phone: +1 800-362-9239
Email: info@tekrevol.com
Address: 4201 Main St Suite # 200-122, Houston, TX 77002, United States
LinkedIn: www.linkedin.com/company/tekrevol
Facebook: www.facebook.com/TekRevolOfficial
Instagram: www.instagram.com/tekrevol
Twitter/X: x.com/tekrevol

13. ClickySoft

ClickySoft is a web and software development agency based in Houston, Texas, working with clients in the US and internationally. Their team handles e-commerce projects from early-stage consulting to full platform deployment and long-term support. They’ve built solutions using platforms like Shopify, WooCommerce, and WordPress, but also offer custom development when off-the-shelf tools aren’t enough. Their work includes redesigns, content migrations, ERP integrations, and mobile-responsive layouts aimed at improving site performance and customer experience.

In terms of process, they break projects down into practical phases like strategy, research, beta testing, and maintenance. Their developers and designers work closely with clients to build or modernize digital storefronts, usually with a focus on usability, performance, and growth. Industries they serve include retail, healthcare, finance, and education, with tailored solutions for both B2B and B2C models. They also offer services like debugging, plugin development, and store audits, giving clients a fairly complete toolkit for running or scaling an e-commerce operation.

Key Highlights:

Based in Houston with a global client base
Experience with platform-based and custom e-commerce builds
Offers long-term support, audits, and upgrades
Structured project approach with testing and feedback loops
Provides consultation and strategic input early in the process

Services:

E-commerce website development
Platform migration and content transfer
Product page optimization
ERP and CRM integration
Beta testing and debugging
Mobile-responsive UI/UX design
Custom plugin development
Long-term maintenance and technical support
Store audits and performance improvements
Consulting and business analysis for e-commerce strategy

Contact Information:

Website: clickysoft.com
E-mail: info@clickysoft.com
Facebook: www.facebook.com/ClickySoft
LinkedIn: www.linkedin.com/company/clicky-soft
Instagram: www.instagram.com/clickysoft
Address: 1423 Ashen Flock CT Katy TX, 77494
Phone: +1(832)847-6000

14. ScienceSoft

ScienceSoft is a U.S.-based software development company with a long-standing track record in building digital solutions for a range of industries, including ecommerce. Their team includes a mix of developers, UX/UI designers, consultants, and system engineers who work across both frontend and backend layers of ecommerce platforms. They design solutions for new online stores, carry out platform migrations, and support existing systems with updates, performance optimization, and long-term maintenance.

The company takes on both custom and Adobe Commerce (Magento)-based ecommerce projects. Their approach covers storefront design, backend logic, third-party integrations, and scalable architecture suited to both B2C and B2B setups. They’ve handled projects involving marketplaces, subscription-based platforms, microservices, and headless commerce. Their developers also offer support in areas like order management, logistics, inventory control, and digital marketing automation, working toward building out complete ecommerce ecosystems.

Key Highlights:

Over two decades of ecommerce development experience
U.S. headquarters with global delivery teams
Uses Adobe Commerce as a primary ecommerce platform
Offers long-term support and infrastructure optimization
Capable of integrating AI, 3D modeling, AR/VR, and voice-assisted features

Services:

Custom ecommerce website development
Mobile ecommerce app development
Platform migration and reengineering
UI/UX design and frontend development
Backend development in multiple languages and frameworks
Ecommerce integrations (payment, CRM, PIM, ERP)
Marketplace and multistore architecture
Headless commerce solutions
Store audits and performance reviews
Ongoing support and evolution of ecommerce systems

Contact Information:

Website: www.scnsoft.com
Phone: +1 214 306 68 37
Email: contact@scnsoft.com
Address: 5900 S. Lake Forest Drive Suite 300, McKinney, Dallas area, TX 75070
LinkedIn: www.linkedin.com/company/sciencesoft
Facebook: www.facebook.com/sciencesoft.solutions
Twitter: x.com/ScienceSoft

15. Maximize Studio

Maximize Studio works with businesses across the U.S. to build tailored ecommerce websites, combining strategy, design, and technology. While they offer broader digital services, their ecommerce work centers on helping businesses set up user-friendly, scalable online stores. They design both B2C and B2B solutions, often building on existing platforms or setting up new infrastructure from scratch, depending on the project’s goals. Their team includes specialists in frontend and backend development, UX, integration, and mobile optimization.

Their ecommerce solutions often involve a mix of custom-built features, third-party tools, and performance-focused design. They handle everything from designing interfaces and developing platform architecture to integrating ERP systems and building AI-powered customer support features. On top of that, Maximize Studio also supports post-launch operations, offering maintenance, performance monitoring, and feature updates. Their work tends to lean toward helping brands enter new markets, improve omnichannel experiences, and personalize customer interactions with data-driven tools.

Key Highlights:

Provides end-to-end ecommerce development for U.S. businesses
Works on both B2C and B2B ecommerce systems
Supports composable commerce and platform integrations
Develops AI-powered chatbots and messaging tools
Offers ongoing support and system maintenance

Services:

Custom ecommerce website development
Frontend and backend ecommerce design
ERP, CRM, and third-party tool integration
Composable and headless commerce
Mobile ecommerce and PWA development
Omnichannel and personalization tools
AI-powered customer support features
Post-launch support and optimization

Contact Information:

Website: www.maxmizestudio.com
Phone: 866.213.2352
Email: Info@Maxmize.com
Address: 50 Harrison ST, Suite 302, Hoboken, NJ 07030 USA
LinkedIn: www.linkedin.com/company/maximize-studio
Facebook: www.facebook.com/MaximizeStudio
Twitter/X: x.com/MaximizeStudio

16. Mobikasa

Mobikasa provides ecommerce website development services out of their offices in New York, Los Angeles, and several international locations. They work with brands across a wide range of industries including fashion, home goods, beauty, and FMCG. Their approach combines frontend and backend development, design, and digital strategy to create websites that can handle both complex ecommerce functionality and everyday usability. Rather than working from a one-size-fits-all template, they tend to tailor each build based on business goals, customer experience needs, and tech requirements.

Their development process typically includes discovery, wireframing, UX design, development, QA, and post-launch support. They also handle integrations with third-party platforms, build custom APIs, and offer AI or machine learning components when relevant. On the infrastructure side, Mobikasa supports cloud architecture, CMS builds, and security setup. In addition to ecommerce site creation, they also design mobile apps, accessibility features, and digital marketing tools for growth and maintenance. Their projects often extend past the launch phase with long-term scaling and content management support.

Key Highlights:

Offices in New York and other major global locations
Works across various industries including fashion, beauty, and home goods
Supports full-cycle ecommerce website builds and redesigns
Focuses on custom frontend and backend development
Offers long-term support and maintenance options

Services:

Custom ecommerce web development
UI/UX design and wireframing
Frontend and backend engineering
CMS and cloud architecture setup
API and third-party integrations
Mobile app development
Accessibility and security implementation
AI and machine learning features
Digital marketing and content updates
Post-launch scaling and support

Contact Information:

Website: www.mobikasa.com
Phone: +1-646-880-4504
Email: info@mobikasa.com
Address: New York Office, 135 Madison Ave, 8th FL New York, NY 10016
LinkedIn: www.linkedin.com/company/mobikasa
Facebook: www.facebook.com/mobikasamobile
Instagram: www.instagram.com/_mobikasa

17. Xumulus

Xumulus works with ecommerce businesses to design, build, and manage digital storefronts using platforms like Shopify, Magento, BigCommerce, and Adobe Commerce. They focus on helping companies with large or complex product catalogs improve their site experience through custom development, search optimization, and integration. Their team handles both frontend and backend work, while also offering services like UX/UI design, email marketing automation, and ongoing tech management.

They also support businesses looking to migrate from legacy systems to newer platforms. Their approach involves setting up ecommerce strategies, handling the full site build or redesign, and making sure any necessary third-party software integrations are handled properly. Xumulus often manages post-launch operations as well, taking care of platform maintenance and marketing tech so teams can focus on other parts of the business. They work with small to midsize brands across a mix of industries and operate out of their Chicago office.

Key Highlights:

Based in Chicago with over 12 years of ecommerce experience
Supports major ecommerce platforms including Magento, Shopify, and BigCommerce
Offers full-cycle development and migration services
Manages technical operations and third-party integrations
Works with small to midsize ecommerce businesses across the US

Services:

Ecommerce website development
UX/UI design
Email and SMS marketing automation
Platform migration (Magento, Shopify, BigCommerce)
Ecommerce strategy and setup
Third-party software and extension integrations
Managed services for ongoing ecommerce operations

Contact Information:

Website: xumulus.com
Phone: (312) 321-6484
Email: sales@xumulus.com
Address: 205 North Michigan Avenue, Suite 810, Chicago, IL 60601
LinkedIn: www.linkedin.com/company/xumulus-inc
Facebook: www.facebook.com/Xumulus
Twitter/X: x.com/xumulus

18. Tempora

Tempora is a web development company based in Houston that works with businesses to build ecommerce platforms, product showcases, and membership-based websites. With experience spanning over two decades, they focus on creating digital tools that help small to midsize businesses handle online sales, streamline product displays, and improve internal workflows. Their projects typically involve custom-built ecommerce stores that align with each client’s branding, sales needs, and customer experience goals.

They also support a range of backend features including inventory management, CRM integration, and secure payment processing. Tempora builds across platforms like Magento, WooCommerce, and BigCommerce, depending on what fits the business best. Their team doesn’t just stop at launch – they continue to handle updates, monitor site health, and provide ongoing support. Whether a business is selling direct to consumers or just showcasing a catalog for B2B clients, Tempora builds tools that are designed to be easy to manage and operate day-to-day.

Key Highlights:

Works with both B2C and B2B ecommerce companies
Offers membership and subscription platform builds
Uses platforms like Magento, WooCommerce, and BigCommerce
Provides long-term support and website care services

Services:

Custom ecommerce website development
B2B product catalog and showcase websites
Payment gateway integration
Inventory management systems
CRM integrations for personalized shopping
Membership and subscription-based websites
Brochure-style brand websites
Mobile responsive development
Analytics setup and optimization
Ongoing care, support, and security maintenance

Contact Information:

Website: www.tempora.com
Phone: (832) 912-7959
Email: hello@tempora.com
Address: 5300 Hollister St, Suite 300, Houston, TX 77040
LinkedIn: www.linkedin.com/company/time4tempora
Facebook: www.facebook.com/time4tempora
Instagram: www.instagram.com/time4tempora
Twitter/X: x.com/time4tempora

Wrapping Up

Picking the right e-commerce development partner in the U.S. isn’t about grabbing the flashiest portfolio or the biggest name in the game. It’s about finding a team that gets what you’re trying to do, knows how to build something solid, and is willing to get into the weeds with you. Whether you’re launching a new product, overhauling a clunky old site, or building backend tools to keep operations moving, it helps to have folks on your side who’ve done it before – successfully, and more than once.

What’s clear from the list above is that there’s no shortage of skilled teams across the country. Some lean into specific platforms, others focus on custom builds or tight industry niches, but they all bring something practical to the table. It really comes down to figuring out what kind of setup your business needs, then matching that with a team that’s actually equipped to deliver. Don’t just go with whoever promises the most. Go with the one who asks the right questions and builds for where you’re headed, not just where you are now.