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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 San Francisco Businesses
San Francisco doesn’t just buy technology, it builds it. Bay Area brands expect WooCommerce stores as well-architected as their products. Headless WordPress, REST APIs, composable architecture. WooCommerce’s open-source codebase gives SF businesses the engineering control that SaaS platforms restrict.
Sigma is in Irvine, CA. Same state, hour flight. Engineering-first delivery. Builds scoped, priced, and supported.
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.
WooCommerce Theme Development and UI Enhancements
SF expects modern engineering. Sigma builds WooCommerce storefronts with clean PHP, modern JavaScript, or headless React frontends. Whatever fits. Fast, clean, technically sound.
Custom WooCommerce Development for Business-Specific Commerce
SaaS company adding commerce. Mission District DTC brand. Tech hardware company selling direct. Standard plugins won’t cut it. Sigma writes the custom code.
WooCommerce Plugin Development That Solves Real Problems
Bay Area businesses expect clean APIs and documentation. Sigma builds WooCommerce plugins with rigour that your own engineers can extend.
WooCommerce Integrations That Eliminate Manual Work
SF stacks are complex. Sigma connects WooCommerce to Stripe, Segment, HubSpot, headless CMS, and whatever else your stack includes. API-first, composable.
WooCommerce Migration Without Downtime or Data Loss
SF brands move to properly-architected WooCommerce with engineering-grade quality checks and full SEO preservation.
PSD to Responsive WooCommerce Conversion
Design files converted into modern WooCommerce storefronts. Headless or standard, whichever fits.
WooCommerce Maintenance and Support for Ongoing Reliability
California-based support from Irvine. WordPress, security, and dependency management.
WooCommerce PWA Development for App-Like Shopping
For SF’s tech-savvy shoppers, a PWA adds modern app-like performance.
Sigma Edge
The Sigma WooCommerce Edge for San Francisco
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 to handle traffic growth without
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. 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, customer flows aligned before code
Design and Architect
UX, journeys, information architecture for conversion
Build and Optimise
Custom development with speed, security, and SEO
Launch and Evolve
Deploy, monitor, validate, continuously improve
Why Sigma
Why San Francisco Businesses Choose Sigma for WooCommerce
01
Built for revenue, not just for launch
Sigma builds WooCommerce stores with engineering depth that meets Bay Area standards.
02
A commerce partner, not just a dev shop
Every decision is commercial. We match WooCommerce’s power with how your SF business generates revenue.
03
Fast stores. Fewer lost sales.
Clean architecture and fast performance. Well-built code, not just working code.
04
Security and compliance built in
ISO 27001:2022. CCPA compliance built into every California engagement from day one.
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.
Trusted by Brands Across 16 Countries
From Melbourne, businesses to global enterprise retailers, Sigma has delivered commerce outcomes that hold.
Frequently Asked Questions
How can WooCommerce help grow my San Francisco 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.
Headless WooCommerce?
Yes. Headless WordPress with React, Next.js, and the REST API. Sigma assesses fit before recommending it.
Cost in SF?
Headless costs more than standard. Sigma scopes with engineering precision.
CCPA compliance?
CCPA built into every California engagement: opt-out mechanisms, data handling, privacy architecture.
API integrations?
Yes. REST APIs for ERP, CRM, OMS, accounting. Custom API layers when needed.
Why Sigma over SF agencies?
Engineering depth, ISO security, structured delivery, post-launch support. Sigma is in California.