Ecommerce Experts

Ecommerce Development Company in St Louis

We build scalable B2B ecommerce solutions that connect your storefront, ERP, CRM, and business systems, helping you streamline operations, simplify ordering, and grow faster.
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See Our Work

CERTIFIED PARTNERS

Shopify
bigcommerce
Celigo
Zoho
Years of Expertise
1 +
Stores Launched
1 +
Brands Served
1 +
Clutch Rating
1

The Right Platform Makes All the Difference

As an Ecommerce Development Agency, we help you evaluate, choose, and build with the platform that best drives your business growth.
Built for businesses that want modern commerce capabilities without the complexity of managing infrastructure.
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Built for businesses that need complete flexibility to support complex commerce operations.
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Enterprise-ready commerce with built-in support for B2B, multi-storefront, and multi-channel selling.
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A flexible commerce platform for businesses that want to build on the WordPress ecosystem.
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One Partner. Every Ecommerce Capability You Need.

Ecommerce Website Development

Ecommerce Migration

Ecommerce Modernization

Systems Integration

Payment Gateway Integration

Omnichannel Commerce Operations

Custom Checkout Development

Ecommerce Website Development

We understand your business goals and build high-performing digital storefronts designed specifically for your target audience. We combine clean code with conversion-focused design to establish a scalable online presence.

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What We Do
  • Business Discovery
  • UX & UI Design
  • Custom Store Development
  • Mobile-First Optimization
  • Performance & SEO Foundation
What You Get
  • Conversion-focused storefront design
  • Fast, secure online store
  • Device-optimized shopping experience
  • Strong SEO and performance base
  • Growth-ready, flexible platform

Ecommerce Migration

We help you move from platforms like Magento, WooCommerce, or BigCommerce to your preferred modern eCommerce platform while preserving customer data, order history, and operational workflows throughout the transition.

What We Do
  • Migration Assessment
  • Data Migration
  • Platform Configuration
  • Integration Migration
  • Testing & Go-Live
What You Get
  • Secure platform transition
  • Preserved customer and order history
  • Minimal downtime, low disruption
  • Fully integrated ecommerce ecosystem
  • Smooth post-launch user adoption

Ecommerce Modernization

Outdated storefronts, app overload, and disconnected systems quietly cap your growth. We rebuild your platform, integrations, and business workflows so pages load faster, your stack is easier to manage, and your team stops working around the tools instead of with them.

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What We Do
  • Platform Assessment
  • Storefront Modernization
  • Integration Optimization
  • Workflow Automation
  • Performance & Scalability
What You Get
  • Faster storefront load times
  • Simplified, leaner tool stack
  • Unified business workflows
  • Lower manual operational effort
  • Long-term platform maintenance

Systems Integration

Connect your eCommerce store with platforms like NetSuite, HubSpot, Salesforce, and warehouse systems to keep orders, inventory, customer data, and operational workflows moving seamlessly across your entire business.

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What We Build
  • ERP & CRM integrations
  • Warehouse & inventory connections
  • Order & customer data synchronization
  • API & middleware integrations
  • Custom business workflows
What You Get
  • Automatic cross-system data sync
  • Fewer manual handoffs between teams
  • End-to-end operational visibility
  • Consistent data across platforms
  • Integration-ready foundation for growth

Payment Gateway Integration

Slow or clunky payments are silent revenue leaks. We integrate platforms like Stripe, PayPal, and ACH to support faster payments, to support faster transactions, reduce checkout friction, and help customers complete purchases without interruptions.

What We Build
  • Payment gateway integrations
  • ACH & invoice payment workflows
  • Multi-payment method support
  • Checkout payment logic
  • Payment testing & validation
What You Get
  • More payment choices for customers
  • Faster, simpler checkout flow
  • Safe & secure transaction handling
  • Fewer failed payment attempts
  • More completed purchases at checkout

Omnichannel Commerce Operations

A customer who buys online should be able to return in-store, and your inventory should remain aligned across all channels. We connect storefronts, POS systems, fulfillment workflows, and multi-location inventory into one connected commerce experience.

What We Build
  • Multi-channel commerce integrations
  • Inventory synchronization
  • Fulfillment workflows
  • POS & warehouse connectivity
  • Order routing automation
What You Get
  • Unified inventory across channels
  • Consistent fulfillment processes
  • Fewer order exceptions and errors
  • Single view of orders and inventory
  • Cross-channel customer experience

Custom Checkout Development

Generic checkouts lose customers at the final step. We build custom checkout flows tailored to your business model – whether that’s B2B bulk ordering, or multi-location retail – helping reduce abandonment and increase completed purchases.

What We Build
  • Custom checkout experiences
  • B2B purchasing workflows
  • Quote & approval processes
  • Payment & shipping logic
  • ERP & payment integrations
What You Get
  • Checkout built for your workflow
  • Quotes, approvals, and account pricing
  • Smart discovery and product bundling
  • Checkout optimized for large orders
  • Faster repeat purchases for buyers

See What We've Built for Brands Like Yours 

With years of experience as an Ecommerce Development Company, we’ve delivered hundreds of successful projects. Let’s build your next success story together.
Expect More Ag

Expect More Ag

Rebuilding Order Operations with ZIP-Based Fulfillment and ACH Payments

  • Agriculture
  • Shopify

3× Faster Order- to-Fulfillment

90% Reduction in Transaction Fees

100% Elimination of Manual Location Checks

Refined By Roots

How We Redesigned Refined By Roots' Shopify Store to Cut Bounce Rates by 70% 

  • Beauty & Wellness
  • Shopify

35% Faster Product Discovery

70% Lower Bounce Rate

95% Automated Shipping Process

Hobby1

MT Racing

Unified B2B and B2C Commerce on a Single Magento Platform

  • Collectibles & RC
  • Magento

2× Faster Repeat Ordering

60% Faster Bulk Ordering

40% Fewer Ordering Errors

Let's Turn Your Ecommerce Store Into Your Strongest Sales Channel

Talk to an Ecommerce Expert

How We Work

No long consulting cycles or confusing handoffs. We keep things simple, a clear process, honest timelines, and a team that stays with you from first call to post-launch growth.
01

Discovery Call

We understand your business, current setup, and blockers to recommend what you actually need.
02

Audit & Scoping

We review your systems and data and provide a fixed-price roadmap upfront.
03

Build & Integrate

We build in sprints with regular updates, keeping you informed at every stage
04

Grow Together

We stay on after launch with same-time-zone support and ongoing improvements.

Who We Help For

Manufacturers

Distributors

Wholesalers

Growing Businesses

AgTech

Manufacturers

Keep dealer sales, product data, and day-to-day operations connected through a single commerce workflow.

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  • Complex Product Catalogs
  • Dealer & Customer Portals
  • Product Configuration
  • ERP Integration
  • Account-Based Pricing

Distributors

Make it easier for buyers to find products, check stock, and place orders across your distribution network.

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  • Multi-Warehouse Inventory
  • Bulk & Quick Ordering
  • Customer-Specific Pricing
  • WMS Integration
  • Fulfillment Workflows

Wholesalers

Give wholesale customers a practical way to handle larger orders, repeat purchases, and account-based buying.

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  • Tiered Pricing
  • Purchase Order Workflows
  • Quick Reordering
  • Customer Accounts
  • Large Catalog Management

Growing Businesses

As your operation expands, make room for new products, customers, channels, and integrations without starting over.

  • Scalable Magento Architecture
  • Multi-Store Commerce
  • Custom Integrations
  • New Sales Channels
  • Store Modernization
agriculture

AgTech

Bring specialized products, dealer relationships, and detailed product information into an easier digital buying experience.

  • Technical Product Data
  • Dealer Ordering Portals
  • Product & Catalog Management
  • ERP Integration
  • Custom Commerce Workflows

Why Businesses Choose Digital Radium?

Business-specific commerce

Most developers build stores, whether that’s complex B2B pricing, dealer portals, account-based purchasing, or omnichannel commerce.  We learn your sales process first, then engineer around it

Complex B2B commerce expertise

Custom ERP integrations, ACH payment workflows, location-based inventory logic, multi-store B2B and B2C architecture — we’ve built it all. If your requirements are complex, that’s exactly where we do our best work.

Growth-ready architecture

Scale isn’t an afterthought in how we build. Every system we architect is designed to grow with your catalog, your team, and your customer base — so you don’t have to rebuild again in two years.

Local Partner. Long-Term Commitment.

Local presence means faster communication, better project alignment, and a team that’s invested in your success long after launch. We don’t disappear after go-live.
Talk to an Ecommerce Expert

Ranked #1 Ecommerce Development Company in St. Louis

★
★
★
★
★
(6 verified reviews)

Digital Radium has been recognized by The Manifest as one of the top ecommerce development companies in St. Louis based on verified client reviews, service quality, and successful project delivery.

Verified by The Manifest
goodfirms

Top Rated Ecommerce Development Company in St. Louis

★
★
★
★
★
(6 verified reviews)

Digital Radium is recognized by GoodFirms for delivering reliable ecommerce development services, technical expertise, and consistent client satisfaction across Shopify, Magento, and custom B2B ecommerce projects.

Verified by GoodFirms

Frequently Asked Questions

How long does an ecommerce project typically take?
Most ecommerce projects take between 6 to 16 weeks depending on the platform, integrations, custom functionality, and operational complexity involved. Smaller storefront projects can move faster, while enterprise builds with custom workflows or ERP integrations typically require more planning and development.
It depends on how you sell. Shopify works well for high-volume retail. Magento suits manufacturers and enterprises with complex catalogs. WooCommerce fits businesses already on WordPress. BigCommerce is strong for omnichannel growth. We help you evaluate the right fit before recommending anything.
Yes — this is one of our core strengths. We integrate ecommerce platforms with ERP systems, CRMs, inventory tools, warehouse systems, and payment platforms to keep orders, inventory, and customer data connected across your business.
Many businesses don’t need a full rebuild. We audit your current storefront, identify operational and performance issues, and improve the areas creating friction without disrupting the parts already working well.
Yes. We’ve built unified commerce systems that serve wholesale buyers and retail customers from a single platform, with separate pricing, workflows, and experiences for each.
Project costs depend on the platform, custom functionality, integrations, and overall complexity. Smaller storefront builds typically cost less than enterprise commerce projects involving ERP integrations, automation, or multi-store operations. We provide clear project scoping and pricing before development begins.
If your store is slow to load, difficult to manage, losing customers at checkout, or struggling to sync, it likely needs modernization. We audit your current setup, identify what’s holding performance back, and upgrade without unnecessary rebuilds.
Yes. We build ecommerce stores with technical SEO best practices including clean URL structures, mobile optimization, fast page performance, schema markup, and redirect planning during migrations. Because only a strong technical foundations can help improve the search visibility from the start.
We build ecommerce stores with security and compliance in mind, including SSL encryption, PCI-compliant payment processing, secure integrations, access controls, and ongoing security best practices designed to protect customer and transaction data.
Digital Radium helps growing businesses in St. Louis build ecommerce solutions that fit their needs and support their growth. From custom ecommerce websites to platform integrations, we help businesses connect their online stores with the systems they use to manage orders, inventory, and customer data. Whether you’re a manufacturer, distributor, or retailer, we work with you to build solutions that fit your business and can grow with it. We also provide ongoing support and ecommerce SEO to help you improve your online store over time.
Yes. Digital Radium builds custom ecommerce websites for manufacturers and distributors based on how their businesses operate. This can include B2B portals, bulk ordering, customer-specific pricing, dealer portals, and quote request features. We can also integrate ecommerce platforms with ERP, CRM, and inventory systems to help manage orders, stock, and customer information more efficiently. Each solution is tailored to the business’s requirements and existing systems.

Let's Talk About Your Ecommerce Goals

No sales pitch. No generic proposal. Just a focused conversation about your ecommerce
Email
info@digitalradium.com
Phone
+1 314 949 1238
Response time
Within one business day