Let’s Connect
Get Your Custom WooCommerce Store
20+
Years delivering eCommerce
16
Countries served
400+
Engineers and specialists
ISO
27001 & 9001 Certified
What We Deliver
Custom WooCommerce Development for Chicago Businesses
Chicago is the commercial backbone of the Midwest. Manufacturing, distribution, and wholesale trade define the economy. B2B eCommerce in the US is projected to hit $36 trillion by 2026. WooCommerce gives Midwest businesses full control without SaaS fees that eat into tight margins.
Sigma operates from Irvine, CA. US-hours support. Every build scoped, priced, and supported past go-live.
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Full-stack delivery: store setup, theme, plugins, integrations, migration -
Dedicated teams and retainer support -
Transparent pricing agreed upfront
Our Services
Everything Your WooCommerce Store Needs. One Team. No Handoffs.
From the first design conversation to post-launch performance work, here’s what Sigma delivers for Chicago businesses.
WooCommerce Theme Development and UI Enhancements
Wholesale buyers at 6am and consumers at lunch need different experiences. Sigma builds WooCommerce storefronts that serve both audiences properly.
Custom WooCommerce Development for Business-Specific Commerce
Chicago food manufacturer launching DTC alongside wholesale. Midwest distributor with 10,000 SKUs. Michigan Avenue retailer. Sigma extends WooCommerce with custom code for each.
WooCommerce Plugin Development That Solves Real Problems
Standard plugins don’t handle industrial B2B. Sigma builds custom WooCommerce plugins for quoting, freight calculations, customer-specific catalogues, and bulk ordering.
WooCommerce Integrations That Eliminate Manual Work
A manufacturer selling through reps, distributors, and online needs all channels reflecting the same data. Sigma connects WooCommerce to NetSuite, SAP, QuickBooks, and warehouse systems.
WooCommerce Migration Without Downtime or Data Loss
Chicago businesses on legacy ordering systems can move to WooCommerce. Data comes across clean. SEO stays intact.
PSD to Responsive WooCommerce Conversion
Design files converted into responsive WooCommerce storefronts with B2B and B2C functionality.
WooCommerce Maintenance and Support for Ongoing Reliability
US-hours support. WordPress updates, security, and performance managed.
WooCommerce PWA Development for App-Like Shopping
For Chicago’s mobile shoppers, a PWA adds app-like speed to your WooCommerce store.
Sigma Edge
The Sigma WooCommerce Edge for Chicago
Lower Risk, Higher Trust
ISO 9001:2015 and ISO 27001:2022
certified delivery
No Platform Lock-In
Open-source WordPress gives you full
ownership and control
Faster Time to Market
Dedicated WooCommerce teams and
agile delivery
Predictable Costs
Transparent pricing. No surprise
invoices
Scalable Architecture
Built for traffic growth without costly rebuilds
One Partner, End-to-End
Strategy through maintenance,
everything under one roof
Consistent Quality
International coding standards and
proactive support
Proven ROI
20+ years of delivery with 82% repeat business
Our Stack
Shopify Technologies We Build With
Focused on Shopify-native tools. Nothing added for padding.
WordPress
WooCommerce
PHP / Laravel
WooCommerce REST API
JavaScript / React
Tailwind / Custom CSS
How We Work
Our WooCommerce Development Process
Strategise and Define
Goals, scope, features, and customer flows aligned before any code
Design and Architect
UX journeys, and information architecture.
Build and Optimise
Custom WooCommerce development with speed, security, and SEO
Launch and Evolve
Deploy, monitor, validate, continuously improve
Why Sigma
Why Chicago Businesses Choose Sigma for WooCommerce
01
Built for revenue, not just for launch
Sigma builds WooCommerce stores that handle Midwest manufacturing and distribution complexity.
02
A commerce partner, not just a dev shop
Every recommendation ties to revenue. We match WooCommerce with how Chicago businesses actually sell.
03
Fast stores. Fewer lost sales.
Fast stores for procurement managers and mobile consumers. Speed is revenue in every channel.
04
Security and compliance built in
ISO 27001:2022 certified. Enterprise security for manufacturing and distribution commerce.
Trusted by Brands Across 16 Countries
From Chicago, businesses to global enterprise retailers, Sigma has delivered commerce outcomes that hold.
In Production
WooCommerce Work That Shipped
Real projects. Verified outcomes. Full case studies on Sigma’s website.
iReliev (Healthcare)
+62% sales via subscriptions, upsells, A/B testing, and ERP/POS integration.
+62% sales via subscriptions, upsells, A/B testing, and ERP/POS integration.
PlayMakar (Fitness)
+405% revenue with autoship, reseller workflows, and conversion-led UX.
+405% revenue with autoship, reseller workflows, and conversion-led UX.
EduTech (US)
Scaled WooCommerce with ERP, POS, and analytics for faster fulfilment.
Scaled WooCommerce with ERP, POS, and analytics for faster fulfilment.
Frequently Asked Questions
How can WooCommerce help grow my Chicago online store?
WooCommerce is open-source. Full ownership, no platform fees, 55,000+ plugins. Your store, your code, your customer data.
WooCommerce migration services?
Yes. Shopify, Magento, legacy platforms. Full data protection and SEO preservation.
WooCommerce for large stores?
Yes. With proper architecture and hosting, WooCommerce handles thousands of SKUs and high traffic.
Does WooCommerce handle large B2B catalogues?
Yes. Thousands of SKUs, complex pricing, customer-specific catalogues, bulk ordering. Sigma builds it when the architecture is right.
Cost in Chicago?
Depends on scope. Clear number before work starts.
US compliance?
US data privacy practices and PCI-compliant payment processing standard.
API integrations?
Yes. REST APIs for ERP, CRM, OMS, accounting. Custom API layers when needed
Why Sigma?
Structured delivery, ISO security, dedicated QA, 400+ engineers.