Your eCommerce store,
built to sell.
We build, optimize and grow online stores for US and international businesses — with AI tools that actually move the needle.
What we do
From first store to full automation — we cover the entire eCommerce stack.
🛍️ Store Launch
Full eCommerce store setup on Shopify or WooCommerce. From zero to live in 4–6 weeks.
📈 Growth Audit + Sprint
Deep conversion audit + 4-week sprint implementing the top 5 improvements.
🔗 Platform Integrations
Connect your store with ERP, CRM, MercadoLibre, QuickBooks, or any third-party tool.
🤖 AI Add-ons
Chatbots, smart search, AI product content, personalization — built for your store.
📊 Monthly Retainers
SEO, ads management, maintenance and CRO sprints — ongoing growth after every project.
🚀 Platform Migrations
Move to Shopify or WooCommerce with zero downtime and full SEO redirect mapping.
Why Sigma Reef
Senior quality, not agency overhead.
Sidney Rees personally leads every engagement — 22 years of eCommerce and technology project experience. You talk to the expert, not an account manager.
Full-stack team.
One agency for strategy, build, marketing, and AI. No hand-offs, no gaps, no surprise invoices.
Proven track record.
We’ve built and grown eCommerce stores across Argentina and international markets on Shopify, WooCommerce, Tiendanube, and MercadoLibre.
AI-native.
We don’t bolt AI on at the end. Chatbots, smart search, and personalization are built into every store we launch.
Ready to build something that sells?
Whether you’re launching your first store or optimizing an existing one, we’ll tell you exactly what to do — and then do it.