Platform migrations carry significant risk. A poorly executed Shopify migration can erase years of SEO equity, corrupt customer data, break integrations with ERP and CRM systems, and disrupt revenue for weeks. Choosing the best Shopify migration agency requires evaluating technical depth, proven process, and specialization match, not just portfolio quality and hourly rates.
We evaluated agencies using a weighted algorithm across seven factors: migration expertise (25%), services offered (20%), enterprise/B2B focus (15%), years in business (10%), location & support (10%), price range (10%), and specialty (10%). The table below presents six agencies ranked by total weighted score. Each agency was assessed using publicly available data, client reviews, and service documentation. In-depth summaries follow the comparison table.
Best Shopify Migration Agency of 2026
| Rank | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Agency | Atwix | scandiweb | The Commerce Shop | Arctic Grey | Fyresite | Swanky |
| Migration Expertise | Platform migrations (Magento, WooCommerce, BigCommerce) | Multi-platform migrations (Magento, Adobe Commerce, Commercetools) | Multi-platform migrations (Magento, WooCommerce, BigCommerce, Shopify) | Platform migrations | Shopify Plus & B2B migrations | International Shopify Plus migrations |
| Years in Business | 20+ years (since 2006) | 23+ years (since 2003) | 16+ years (since 2009) | 10+ years (since 2015) | 15+ years | 15+ years |
| Services Offered | Full-service (development, migration, ERP integration, design, support) | Full-service (development, migration, CRO, SEO, PPC, email marketing) | Migration, development, theme customization, integrations, SEO, support | Development, migration, UX/UI, ERP/POS integration | Shopify Plus development, migrations, B2B solutions, custom apps | Replatforming, design, development, CRO, digital marketing |
| Enterprise/B2B Focus | Strong B2B & enterprise expertise | Enterprise & multi-market rollouts | DTC & retail focus | D2C, B2B, omnichannel | B2B & wholesale focus | International brands & DTC |
| Location & Support | US (Chicago) + Europe (Slovakia); 24/7 support | US (New York) + 6 global offices; 24/7 support | US-based | US-based | US (Arizona) | UK, Australia, France |
| Price Range | $$$$ | Not publicly available | Not publicly available | Not publicly available | $$$ | Not publicly available |
| Specialty | Enterprise ERP integration & complex migrations | Enterprise multi-platform migrations | Multi-platform migration specialists | Zero-downtime migrations | B2B Shopify Plus solutions | International expansion |
Atwix: Enterprise ERP Integration & Complex Migrations
Atwix is a Chicago-based Shopify migration agency that focuses on enterprise clients requiring ERP system integrations. The company has operated since 2006 and holds 200+ technical certifications across its development team. Atwix specializes in connecting eCommerce stores with Infor, NetSuite, Epicor, and SAP systems for real-time inventory sync and automated order processing. The agency’s 11-step Shopify migration process includes feature mapping, data transfer, custom app development, and post-launch maintenance. Project pricing ranges from $35,000 to over $100,000 based on catalog size and integration requirements. Client reviews rate the agency 4.9/5.0, with frequent mentions of technical depth and ERP expertise, though some clients note higher costs compared to agencies without enterprise specialization.
Key Stats:
- 15+ years
- 4.9/5.0 reviews
- Chicago + Europe
- $$$$
| Summary of Online Reviews |
|---|
| Clients consistently describe Atwix as a long-term partner rather than a vendor, with reviewers highlighting technical depth, ERP expertise, and zero-downtime migration execution. One client noted: “Going with a less expensive option actually cost us much more than simply starting with Atwix,” though some reviewers requested more frequent project status updates. Clutch |
scandiweb: Enterprise Multi-Platform Migration Specialists
scandiweb operates seven global offices (New York, London, Riga, Stockholm, Montreal, Dubai, Tbilisi) with a 600-person team serving enterprise ecommerce clients. Founded in 2003, the agency has 23 years of experience across Magento, Adobe Commerce, Shopify, and headless commerce platforms. Notable migration projects include The New York Times, which replatformed from Adobe Commerce to Shopify in 60 days. scandiweb has developed proprietary tools, including Satoshi (a Shopify theme) and AnswerRank (AI search optimization). Services span development, CRO, SEO, PPC, and email marketing. Client reviews average 4.8/5.0, highlighting technical capabilities and successful high-stakes migrations, with some noting premium pricing. Pricing information is not publicly available.
Key Stats:
- 23+ years
- 4.8/5.0 reviews
- 7 global offices
- Enterprise pricing
| Summary of Online Reviews |
|---|
| Reviewers across enterprise retail, nonprofits, and manufacturing cite scandiweb’s technical preparation and proactive communication as standout qualities, with the CIO of West Marine noting: “What stood out most was their level of preparation and technical depth.” Recurring constructive feedback includes occasional timeline delays and knowledge transfer gaps between project managers. Clutch |
The Commerce Shop: Multi-Platform Migration Specialists
The Commerce Shop provides migration services across multiple ecommerce platforms, including Magento, WooCommerce, BigCommerce, and Shopify. Founded in 2009, the agency has 16+ years of experience serving DTC and retail brands. Services include migration planning, custom theme development, third-party app integration, and SEO preservation strategies. The agency works with brands across multiple industries, including automotive, fashion, consumer electronics, and health & fitness. The agency also offers ongoing maintenance and optimization after launch. The Commerce Shop has scaled over 1,000 ecommerce stores. Pricing information is not publicly available.
Key Stats:
- 16+ years
- 4.8/5.0 reviews
- US-based
- Contact for pricing
| Summary of Online Reviews |
|---|
| Clients frequently praise strong development skills, responsiveness, and good value for cost, with one retail client reporting a 22% year-over-year sales increase following an engagement. Project management is the most commonly cited area for improvement, with some reviewers noting they needed to take on client-side coordination and experienced timeline pushbacks. Clutch |
Arctic Grey: Zero-Downtime Migration Guarantee
Arctic Grey is a US-based Shopify Platinum Partner that has built 1,000+ stores since 2015. The agency serves D2C, B2B, wholesale, and omnichannel brands with migration services, custom development, ERP/POS integration, and UX/UI optimization. Clients consistently praise their project management, communication, and timely delivery. Client reviews average 4.9/5.0 on Clutch. Pricing information is not publicly available.
Key Stats:
- 11+ years
- 4.9/5.0 reviews
- US-based (NY, CA) + UK office
- Contact for pricing
| Summary of Online Reviews |
|---|
| Arctic Grey has the most substantive verified review pool in this comparison, with recurring themes of organization, communication, and measurable post-migration results; one client reported 47% sales growth, 52% order growth, and 57% new customer growth following a WooCommerce-to-Shopify migration. A small number of reviewers noted early-stage friction with project manager assignments before finding the right fit. Clutch |
Fyresite: B2B & Wholesale Shopify Plus Migrations
Fyresite is a Tempe, Arizona-based agency specializing in B2B and wholesale ecommerce on Shopify Plus. The agency has 15+ years of experience building custom solutions for businesses requiring advanced B2B features and complex pricing structures. Fyresite’s migration services focus on B2B-specific challenges and custom functionality that extends native Shopify capabilities. The agency develops custom apps when standard features don’t meet business requirements. Project budgets typically range from $25,000 to $30,000, depending on catalog complexity and integration needs. Additional services include AWS integration, UI/UX design, and CRO. Client reviews average 5.0/5.0 on Clutch, highlighting B2B expertise and custom development capabilities, with some noting that complex customizations can extend timelines.
Key Stats:
- 15+ years
- 5.0/5.0 reviews
- Arizona
- $$$
| Summary of Online Reviews |
|---|
| Fyresite holds a perfect score across all review dimensions on Clutch, with clients consistently highlighting the combination of technical execution and design quality; one migration client noted the agency “delivered functional sites with little to no impact on sales” across a complex three-site Shopify migration. The most common constructive feedback across reviews is a request for stronger backend documentation and post-launch analytics support. Clutch |
Swanky: International Multi-Market Migrations
Swanky operates as a Shopify Platinum Partner with offices in the United Kingdom, Australia, and France. Founded in 2010, the agency has 15+ years of ecommerce experience and specializes in multi-market rollouts and international expansion on Shopify Plus. Swanky’s migration approach includes multi-currency support, localized checkout experiences, and region-specific payment gateway integration. The agency has particular experience with subscription-based business models and recurring revenue optimization. Services extend beyond migration to include CRO, digital marketing (SEO, paid ads, email, SMS), and strategic growth consulting. A single Clutch review rates the agency 5.0/5.0, noting its international expertise and subscription optimization. Pricing information is not publicly available.
Key Stats:
- 15+ years
- 5.0/5.0 reviews (only 1 review)
- UK/Australia/France
- Contact for pricing
| Summary of Online Reviews |
|---|
| The single Clutch reviewer reported on-time, on-budget delivery and praised Swanky’s attention to detail, stating the agency “over delivered on everything they promised.” Due to very limited review data, prospective clients should request references directly from Swanky before engaging. Clutch |
Best Shopify Migration Agency by Specialty
We reorganized the six agencies into specialty categories based on their primary service focus and documented expertise.
Best for Enterprise & ERP Integration: Atwix, scandiweb, Arctic Grey
Best for B2B & Wholesale: Atwix, Fyresite, scandiweb
Best for Multi-Platform Migrations: The Commerce Shop, Atwix, scandiweb
Best for International Expansion: scandiweb, Swanky, Atwix
Best for Strong Project Management: Arctic Grey, Atwix, scandiweb
How to Choose a Shopify Migration Agency
Migration projects require evaluating agencies on factors beyond portfolio and pricing. Consider these five criteria when comparing the best Shopify migration agency options:
- Platform-specific experience: Request client references who migrated from your current platform (Magento, WooCommerce, BigCommerce, custom) and ask for organic traffic data from 90 days post-launch
- Integration capabilities: Ask which specific ERP, CRM, PIM, or WMS systems the agency has connected to Shopify, including system versions and who owns the integration development
- SEO preservation process: Request documentation of their URL mapping methodology, redirect implementation strategy, and organic traffic performance from recent migrations
- Post-launch support structure: Clarify response time guarantees, what services are included versus billable, and when the official project handoff occurs
- Total project cost: Evaluate beyond base pricing to include data accuracy guarantees, SEO protection measures, integration quality, and business disruption minimization
The Bottom Line
The best Shopify migration agency for a given business depends on platform origin, integration requirements, business model, and geographic scope. Atwix ranks highest for enterprise ERP integration, scandiweb for multi-platform expertise, The Commerce Shop for multi-platform migrations, Arctic Grey for project management and custom development, Fyresite for B2B workflows, and Swanky for international expansion.
Migration success requires matching an agency’s documented strengths to your specific technical requirements. Evaluate agencies using concrete evidence: named client migrations from your platform, traffic preservation data, integration case studies with system names, and transparent post-launch support terms. The best Shopify migration agency will protect revenue during the transition, maintain search rankings, and establish a foundation for scalable growth.
Contact Atwix to discuss enterprise Shopify migration requirements, ERP integration projects, and complex ecommerce platform transitions