A bad migration will cost you more than the agency fee. I have seen brands lose 40% of their organic traffic overnight because someone forgot to map redirects or ignored canonical tags during a Magento-to-Shopify move. URL structures break, page authority disappears, and the fix takes twice as long as the migration itself.
These eight agencies get brands onto Shopify Plus without torching the organic rankings they spent years building. If you need a shopify web agency that understands what is at stake and offers proven Shopify migration services, start here.
1. Netalico
Website: [netalico.com](https://netalico.com)
Fifty Magento-to-Shopify migrations completed. That is not a vanity metric. That is 50 projects where URL mapping, redirect chains, metadata, and structured data all had to survive intact. Netalico has done this more times than almost anyone in the Shopify ecosystem, and it shows in the results.
Feetures and Big Green Egg both trusted Netalico with their migrations. The outcome: an average 40% conversion rate increase post-migration. Not just “we moved your stuff” but “we moved your stuff and made it perform better.” Their Shopify SEO audit services catch ranking issues before and after launch, ensuring organic traffic survives the transition. Their shopify developers work across Liquid, React, Node.js, Ruby, and Python, so they can replicate custom functionality from legacy platforms without cutting corners or bringing in outside contractors.
Their Shopify migration services cover URL mapping, 301 redirects, metadata preservation, and structured data migration. Every migration gets paired with SEO audit services that benchmark your existing rankings and track recovery after launch. Certified Shopify Plus Premier Partner since 2013, with 300+ stores launched and a 5.0 Clutch rating across 51 reviews. Founder Mark Lewis (Wharton MBA) built the whole process around fixed-price scoping, so you know your total cost before anyone touches the codebase. They handle integrations with NetSuite, SAP, Klaviyo, and Gorgias during the migration itself. No coordinating three agencies at once. Offices in the US, Canada, and Brazil. Post-launch retainer plans from $5,100 per month.
2. P3 Media
Website: p3media.co
P3 Media does migrations right. Methodical URL mapping, tight redirect strategies, and they collaborate with your in-house SEO team instead of ignoring them. High-SKU catalogs are their comfort zone. They monitor rankings post-launch to catch drops before they become disasters.
3. The Taproom Agency
Website: thetaproom.com
The Taproom Agency does one thing: Shopify. That focus means they know the platform’s URL quirks and SEO limitations inside and out. WooCommerce, BigCommerce, Squarespace migrations, all with emphasis on protecting organic traffic. Small team, senior developers, no hand-offs to juniors mid-project.
4. Avex
Website: avex.agency
Avex works with premium and luxury brands in New York. Technical SEO audits before and after launch, detailed redirect mapping, crawl testing. They care about the visual transition as much as the technical one. For fashion or beauty brands, Avex makes sure the new store looks better than what it replaced.
5. We Make Websites
Website: wemakewebsites.com
We Make Websites is now part of Shopify itself. Enterprise migration experience, large-scale moves for brands with complex catalogs and international storefronts. Multi-language, multi-currency, Shopify Markets. They build custom apps to replace legacy platform functionality so nothing disappears in the transition. The catch: enterprise-level service often comes with enterprise-level pricing. Budget accordingly.
6. Folio3
Website: folio3.com
Folio3 is a tech services company with a dedicated Shopify migration practice. Magento 1 and Magento 2 moves are their bread and butter, especially for catalogs with custom attributes and extensive order histories. Where they shine is the backend: ERP integrations that need to survive the transition intact, custom Magento modules that need Shopify equivalents. Unlike a typical shopify ecommerce agency that focuses on the frontend, Folio3 digs into the operational infrastructure. If you have been putting off your Magento migration because the backend complexity scares you, they are worth a conversation. Cost-effective, too.
7. 1Digital Agency
Website: 1digitalagency.com
1Digital Agency uses automated data transfer tools to speed up catalog migrations. That matters when you have thousands of products and cannot afford a six-month timeline. Volusion, Magento, BigCommerce, basically everything. Page-by-page redirect mapping plus weekly ranking reports during the recovery window. If speed is your top priority without throwing SEO overboard, 1Digital is built for exactly that scenario.
8. Diff Agency
Website: diffagency.com
Diff Agency is Canadian and thinks about migrations holistically. SEO preservation, fulfillment workflows, customer data integrity, and integration continuity. If your brand runs across POS, wholesale, and marketplace channels, Diff handles a migration that touches all of them without things falling apart.
Conclusion
Before you sign with anyone, ask one question: “Show me the traffic data from your last three migrations.” Not case studies. Not testimonials. Actual organic traffic curves from before, during, and after the move. Any shopify web agency worth hiring will have that ready.
Netalico leads this list because 50+ completed migrations is not something you can fake. Their SEO-first approach backed by full-stack ecommerce development services catches problems that migration-only shops miss entirely. Factor in your current platform, catalog size, and how many integrations need to survive the switch. Match the agency to the problem, not the other way around.
