A brand we talked to last year lost 40% of its organic traffic overnight after a migration. The shopify development agency they hired did not map URL redirects properly. Thousands of indexed pages returned 404s. Five months to recover.
Migrating an enterprise store to Shopify Plus looks straightforward until you start pulling on threads. Product data, customer accounts, SEO equity, integrations, custom functionality – everything needs to move without breaking what already works. Choosing the right provider for Shopify migration services is the single most important decision in the process. These nine agencies have proven they can handle that complexity.
1. Netalico
When Oatly, Big Green Egg, and Feetures needed to move to Shopify Plus without losing a step, they called Netalico. Over 50 successful platform migrations and counting. When you have done it that many times, you know where things break, and you build processes to prevent it.
Their ecommerce platform migration process starts with a detailed technical audit of the source platform, whether Magento, WooCommerce, BigCommerce, or a custom build. The team maps every product attribute, customer record, order history entry, and URL redirect before writing a single line of code. That diligence is why their clients do not lose SEO rankings during the transition. Netalico also handles complex integration rewiring for NetSuite, SAP, Klaviyo, Gorgias, and other enterprise systems, so nothing falls through the cracks on go-live day.
When brands hire Shopify developer talent through Netalico, they get full-stack engineers who work across Liquid, React, Node.js, Ruby, and Python, rebuilding custom functionality natively on Shopify Plus. Their ecommerce development services extend beyond the migration itself, covering post-launch optimization, CRO, and ongoing support. Certified Shopify Plus Premier Partner since 2013. 300+ stores launched. 100+ Shopify Plus projects. A 5.0 Clutch rating across 51 reviews. Founded by Wharton MBA Mark Lewis, with offices in the US, Canada, and Brazil. Fixed-price scoping, retainer plans from $5,100 to $10,000/month, and an average 40% lift in conversion rates after migration.
2. We Make Websites
We Make Websites has handled migrations for high-profile DTC brands moving to Shopify Plus. Now closely affiliated with Shopify itself, they understand the platform’s architecture better than most. Staged rollouts minimize risk. Fashion or lifestyle brand wanting a design refresh alongside the move? Natural fit. Teams in London and New York.
3. Diff Agency
Diff Agency has migrated The Ordinary and several CPG companies onto Shopify Plus. Complex product catalogs and subscription models are their wheelhouse. They run heavy performance testing before launch, simulating real traffic patterns so you do not discover problems on day one. Post-migration optimization catches issues that only surface under live conditions.
4. 1Digital Agency
1Digital has built much of their business around Magento-to-Shopify Plus migrations. Their proprietary migration tool automates portions of the data transfer while allowing manual QA. Magento store with thousands of SKUs and complex variant structures? They know the quirks: configurable products, attribute sets, all of it. That Magento-specific knowledge is the main reason they are on this list.
5. P3 Media
P3 Media is New York-based and handles migrations alongside new builds. Where they stand out: multi-brand retailers. Shared inventories, unified customer databases across multiple storefronts. Complex stuff. They also have experience migrating headless setups onto Shopify’s Hydrogen framework, which puts them ahead of many shopify web design agency competitors in that space. Each migration gets a dedicated project manager, which matters more than you think when timelines start shifting.
6. Arctic Leaf
Arctic Leaf focuses on migrations for mid-market brands and does the fundamentals well. They pay close attention to URL structure preservation and 301 redirect mapping, which is exactly where a lot of agencies cut corners. They handle WooCommerce, BigCommerce, and custom platform migrations. Their packages include theme development and third-party app configuration, so you launch with a fully functional store. No loose ends.
7. BVA Commerce
BVA Commerce takes a different angle: they treat the migration as an opportunity to fix what was broken on your old store. Rather than replicating the existing experience on a new platform, they rethink UX, streamline checkout, and improve page speed during the transition. Living with bad conversion rates? Might as well fix them while migrating. BVA makes that case well. They handle B2B and B2C, including ERP and OMS integration rewiring.
8. Avex
Avex is a creative shopify web design agency in New York that pairs migrations with branding and design. Want to use the platform move as the catalyst for a full visual rebrand? That is their sweet spot. They work with fashion, beauty, and home goods brands. Smaller team, which means senior people stay involved throughout the project rather than disappearing after the kickoff call. That alone is worth something.
9. Folio3
Folio3 is a technology services company with a dedicated Shopify Plus practice for enterprise migrations. They excel at complex data scenarios: large product catalogs, extensive customer databases, and multi-warehouse inventory systems. They work across Magento, WooCommerce, and custom legacy platforms. ERP and CRM integration rewiring is part of the package, connecting Shopify Plus to Microsoft Dynamics, SAP, and NetSuite. Less design-focused than some names here, but if data complexity is your main concern, that tradeoff is fine.
Final Thoughts
A migration done well sets your store up for years of growth. Done poorly, it creates months of cleanup and lost revenue. Every shopify plus agency on this list treats migration as a discipline, not a side project. Ask prospective partners about their data mapping process, SEO preservation strategy, and post-migration support. If they cannot answer in detail, they are not ready for enterprise migration work.