Shopify Plus Development Agency
Custom theme builds, private app development, and migrations from WooCommerce, Magento, and BigCommerce — then ongoing optimization across ads, email, CRO, and analytics. A Shopify partner accountable for the store’s performance long after launch.
End-to-end e-commerce: storefront, integrations, and ongoing revenue growth
Shopify Plus Build
Custom theme development, Shopify Plus configuration, Checkout Extensibility for the new Checkout, B2B price lists and account hierarchies. Built to your brand from a blank canvas.
Custom Shopify Apps
Public or private apps when off-the-shelf doesn’t cut it. Hosted on our infrastructure, integrated with your ERP, 3PL, or loyalty stack — written against Shopify’s current app framework with OAuth, webhooks, and GraphQL Admin API.
Platform Migrations
WooCommerce, Magento 1/2, BigCommerce, custom Laravel or Django commerce. Product import, customer migration, order history, SEO redirect map. Zero-downtime cutover.
Performance & Core Web Vitals
Theme performance optimization, image and asset tuning. LCP under 2s, INP under 200ms, CLS under 0.1. Every store we ship meets Core Web Vitals targets.
ERP / 3PL / Loyalty Integrations
NetSuite, SAP, Brightpearl, ShipBob, Recharge, and your email and loyalty platforms. Deep integrations with custom data flows and error handling, fully tested against your production environment.
Ongoing Optimization Retainer
Weekly conversion experiments, monthly merchandising reviews, ad creative refresh, email flow iteration. The store improves continuously, every sprint after launch.
From brief to live store
Discovery & Architecture
We map your current platform, data model, integration requirements, and migration risks. Scope agreed in writing before development starts.
Build & Migrate
Theme development, custom apps, data migration in parallel. Staging environment mirrors production so testing reflects live conditions.
Cutover & Optimize
Zero-downtime cutover, SEO redirects verified, tracking confirmed. Then ongoing retainer: CRO, email, ads, analytics — one team on the whole revenue stack.
The Brooklyn-office tax, removed
The well-known Shopify Plus partner agencies all do good work and all charge a premium for their brand reputation. Theme and app builds often start north of €30,000 before the retainer kicks in. Their retainers focus narrowly on CRO — you pay separately for email, ads, and analytics.
Our Shopify Plus builds start at a published price. The ongoing retainer covers the full revenue stack: optimization, email flows, ad creative, analytics, conversion tests — one team, one bill, one written report per week.
Frequently asked questions
How much does a Shopify Plus build cost?
Custom Shopify Plus theme builds start at €15,000 for mid-complexity stores. Highly customized builds with B2B, bundles, or complex product logic range from €15,000–€35,000. Full pricing is published on our pricing page.
Can you migrate our WooCommerce store to Shopify?
Yes. We handle the full migration: products, customers, order history, blog posts, SEO redirect map, and integration re-wiring. Zero-downtime cutover with a staging environment tested against your live data. Magento 1, Magento 2, BigCommerce, and custom platforms are also common migration sources.
Do you build custom Shopify apps?
Yes. Private apps for internal tooling (ERP sync, fulfillment workflows, custom pricing logic) and public apps for wider distribution. Written against Shopify’s current app patterns — OAuth, webhooks, GraphQL Admin API.
What’s included in the ongoing retainer?
Conversion experiments, email flow management and optimization, ad creative refresh, analytics dashboards, and monthly merchandising reviews. One retainer covers the whole revenue stack, from ads to checkout optimization.
How long does a Shopify Plus build take?
Mid-complexity custom themes: 6–10 weeks. Migrations with complex data: 8–14 weeks. We provide a project timeline at scope sign-off, with milestones and a staging launch date before production goes live.
Do you support Shopify’s new Checkout Extensibility?
Yes. We build Checkout UI Extensions, Functions (for custom discounting and delivery logic), and Checkout Blocks. Shopify deprecated the old checkout.liquid for Plus merchants — if you’re still on the old checkout, we can migrate you forward.
Explore Specific Shopify Plus Services
A Shopify partner that owns the whole revenue stack
Tell us about your store today — what platform, what AOV, what’s working, what isn’t.
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