Best Shopify Migration Agencies in the USA for 2026

The best Shopify migration agency is not automatically the company with the highest partner tier, the most reviews, or the largest client logos. A retailer moving a small WooCommerce catalog has a different risk profile from an enterprise migrating Magento data, subscriptions, B2B pricing, international stores, and ERP integrations to Shopify Plus.

This guide compares eight Shopify migration agencies serving US merchants. They are listed alphabetically rather than ranked from best to worst:

1. Absolute Web
2. Arctic Grey
3. Fyresite
4. Lucent Innovation
5. Netalico
6. Optimum7
7. Ruby Digital Agency
8. StoreFix

The shortlist is based on public Shopify ecosystem evidence reviewed in September 2026. Use it to identify agencies worth interviewing—not to skip technical discovery, reference checks, or commercial due diligence.

Editorial disclosure: Lucent Innovation is included in this guide, and I have a professional connection to the company. It received no guaranteed position and was assessed using the same criteria and profile structure as every other agency. Its inclusion should be independently verified against your requirements and references.

If your project involves broader storefront development rather than a platform move, use the Shopify development company comparison. This article is specifically about migration risk and delivery.

Quick Comparison of Shopify Migration Agencies

How These Agencies Were Selected

The initial research pool was broader than eight companies. An agency qualified only when public evidence supported a useful migration-specific profile.

The selection criteria were:

1. A current record in Shopify's Partner Directory.
2. Store migration listed as a service.
3. A primary US location or clear evidence of serving US merchants.
4. Named migration work, migration-specific merchant feedback, or a sufficiently detailed migration process.
5. Enough information to identify both a potential fit and an evidence limitation.
6. Capabilities beyond copying products, such as redirects, integrations, custom functionality, testing, or post-launch support.

Partner tier and review count were treated as supporting evidence, not a score. Shopify describes its tiers as serving different merchant scales, but the right team still depends on the source platform, data condition, business model, integrations, timeline, and budget.

The list also avoids declaring one universal winner. Before signing an agency, ask it to respond to the same migration brief as every other candidate.

What a Shopify Migration Agency Should Actually Handle

A migration is successful only when the new store works as an operating business. Moving product rows is one part of the job.

A complete scope may need to address:

• Products, variants, collections, inventory, media, and metafields
• Customer records and the effect of encrypted-password limitations
• Historical orders, returns, gift cards, store credit, and loyalty data
• Pages, blog posts, policies, metadata, and downloadable files
• Reviews, subscriptions, memberships, and customer-account behavior
• ERP, CRM, PIM, OMS, warehouse, shipping, tax, support, and analytics systems
• Payment, checkout, fraud, fulfillment, and notification workflows
• Existing URLs, redirect rules, canonical tags, structured data, and sitemaps
• Test orders, refunds, cancellations, taxes, shipping, discounts, and emails
• Data reconciliation, cutover sequencing, rollback conditions, and stabilization

Ask the agency to distinguish what will be migrated, rebuilt, replaced, archived, or intentionally removed. “Everything will be transferred” is not an acceptance criterion.

1. Absolute Web — Potential Fit for Larger Shopify Plus Migrations

Absolute Web is a Miami-based Shopify partner whose public profile emphasizes Shopify and Shopify Plus migrations, custom applications, integrations, storefront development, UX, and continuing optimization.

Its featured work covers several migration patterns relevant to larger merchants. These include moving a legacy proprietary commerce system to Shopify Plus, consolidating Magento into Shopify Plus for B2C and professional B2B customers, migrating WooCommerce stores, and moving headless storefronts back to Shopify's native frontend. That range is useful when architecture decisions are part of the migration rather than already settled.

Potential fit: A mid-market or enterprise merchant with custom integrations, B2B requirements, multiple storefront concerns, or a migration connected to a larger redesign and optimization program.

What to verify: Ask for a project involving your source platform and comparable data volume. Confirm who owns data mapping, redirect validation, integration testing, analytics continuity, launch approval, and post-launch incident response.

Important limitation: Its directory profile shows substantial starting prices for migration and development work. Those figures signal delivery positioning but do not establish a final project cost. Smaller merchants should confirm whether the proposed team and commercial model are proportionate to their needs.

2. Arctic Grey — Potential Fit for D2C, B2B, Wholesale, and POS

Arctic Grey has a long record in Shopify's partner ecosystem and serves D2C, B2B, wholesale, and point-of-sale requirements. Its public material includes migrations from platforms such as BigCommerce and WordPress, complex B2B catalogs, ERP integrations, and large consumer storefronts.

Its directory profile also has a comparatively large merchant-review sample. That provides more operational context than a portfolio alone, including comments about migration management, communication, custom requirements, and continuing support.

Potential fit: A merchant that needs migration work coordinated with B2B or wholesale workflows, POS, accessibility, custom storefront functionality, or ongoing technical improvements.

What to verify: Request a reference with similar catalog and integration complexity. Ask which work is performed by the proposed team, how data reconciliation is documented, and whether post-launch support is part of the project or a separate engagement.

Important limitation: Featured work includes strong conversion, traffic, and performance results. Treat these as provider-supplied case-study claims that require reference checks, measurement context, and confirmation of other changes made during the same period.

3. Fyresite — Potential Fit for Complex Shopify Plus Replatforming

Fyresite is a Tempe-based Shopify Premier Partner whose migration record includes BigCommerce, Magento, WooCommerce, Drupal, custom platforms, and Shopify Plus.

The featured work demonstrates migration requirements beyond a basic catalog import. Public examples include custom automotive product selection, B2B, rewards, preorders, NetSuite integration, product calculators, complex variants, and legacy order data. This makes the agency particularly relevant when source-store functionality must be redesigned rather than copied directly.

Potential fit: A Shopify Plus project involving automotive or B2B commerce, product configuration, ERP integration, complex variants, or a legacy platform with custom behavior.

What to verify: Ask for the data model, custom-function inventory, integration ownership, reconciliation procedure, performance baseline, cutover plan, and the people assigned to each workstream.

Important limitation: Fyresite's directory profile has fewer reviews than several agencies in this shortlist. The named projects provide useful evidence, but buyers should still request current references for the exact migration pattern involved.

4. Lucent Innovation — Potential Fit for Custom Platforms and Integrations

Lucent Innovation has participated in Shopify's partner ecosystem since 2013 and is listed as a Shopify Plus Partner. Its public Shopify record combines storefront development, migration, custom applications, systems integration, analytics, and conversion work.

Migration evidence includes merchant feedback about moving from a custom ecommerce platform to Shopify and featured work involving Magento migration, external integrations, custom themes, and React storefront development. Lucent also maintains public Shopify applications, providing additional evidence of engineering work inside the ecosystem. App experience does not prove migration quality by itself, but it can matter when a migration requires functionality that standard applications cannot provide.

Potential fit: A merchant moving from a custom platform or Magento while also needing custom applications, operational integrations, analytics, or broader commerce data work.

What to verify: Request a comparable migration reference and meet the proposed delivery leads. Confirm the exact source-platform experience, reconciliation plan, redirect ownership, application dependencies, security responsibilities, rollback conditions, and post-launch support.

Important limitation: I have a professional connection to Lucent Innovation. Buyers should not treat its inclusion as an endorsement or rely on this profile alone. Evaluate its proposal and references under the same requirements used for every other agency.

5. Netalico — Potential Fit for Mid-Market DTC Migrations

Netalico is a Miami-based Shopify Premier Partner that describes an in-house US team and a focus on mid-market and enterprise direct-to-consumer brands. Its public work includes migrations from Magento and custom platforms, Shopify Plus storefronts, custom product experiences, and ongoing development retainers.

Named migration examples include Big Green Egg, Audio Advice, Crossrope, and Limitless Walls. Directory reviews also discuss store migration, compressed timelines, organization, communication, and ongoing work. This combination is relevant to merchants that want the migration team to remain involved after launch.

Potential fit: A mid-market DTC business migrating from Magento or a custom storefront and looking for continuing UX, development, or conversion support.

What to verify: Ask for a migration involving comparable data and integrations. Confirm the assigned US team, migration tooling, redirect and analytics plan, launch support, retainer capacity, and how post-launch priorities are selected.

Important limitation: Some featured outcomes are agency-supplied, and continuing optimization can blur which results came from migration, design, paid media, merchandising, or later CRO work. Ask for measurement boundaries.

6. Optimum7 — Potential Fit for B2B and Custom Commerce Requirements

Optimum7 is a Florida-based Shopify Plus Partner whose public migration scope includes data mapping, URL redirects, inventory, custom functionality, SEO continuity, and integrations with systems such as ERP and CRM platforms.

Its featured work covers several distinct migration problems. Examples describe moving a large historical order and customer dataset, handling product customization, supporting dealer access and digital products, and migrating from platforms including Volusion and Miva. These projects are relevant when data volume and business rules matter as much as storefront design.

Potential fit: A B2B, automotive, industrial, or catalog-heavy merchant that needs custom features and system integrations during a Shopify migration.

What to verify: Ask for record counts and reconciliation tolerances from a comparable project. Review the URL inventory, integration failure handling, permissions, data-retention policy, acceptance tests, and post-launch support terms.

Important limitation: The directory displays starting prices for some services, but a starting price is not a migration estimate. Public performance figures are also provider-reported and should be checked against references and analytics context.

7. Ruby Digital Agency — Potential Fit for Defined Small and Mid-Sized Migrations

Ruby Digital Agency is based in West Jordan, Utah. Its public migration description covers Shopify and Shopify Plus moves from WooCommerce, BigCommerce, Magento, OpenCart, and other legacy platforms.

The stated process includes product and customer data, SEO preservation, payment setup, integrations, pre-migration audits, staging tests, and post-launch monitoring. That scope provides a useful starting point for buyers who want a smaller engagement with clearly described migration responsibilities.

Potential fit: A small or mid-sized merchant whose requirements are broader than an automated import but do not necessarily require a large enterprise delivery organization.

What to verify: Ask for named references from the same source platform, precise data exclusions, redirect validation, testing evidence, issue-response times, and the technical seniority of the assigned people.

Important limitation: The reviewed public record contains less evidence of very large enterprise or multi-market migrations. Merchants with complex ERP, B2B, international, subscription, or high-volume requirements should require stronger comparable proof.

8. StoreFix — Potential Fit for Lower-Complexity and Budget-Conscious Moves

StoreFix is a Torrance-based Shopify service partner focused on store migration, builds, redesigns, and related implementation work. Its public profile lists a comparatively accessible migration price range and a large merchant-review sample.

The agency describes migrations from Magento, WooCommerce, BigCommerce, Etsy, Volusion, Wix, Squarespace, and other platforms. This breadth may suit merchants whose priority is a structured move to Shopify without a large custom engineering program.

Potential fit: A smaller catalog or lower-complexity migration where budget transparency, a repeatable process, and merchant-review volume matter.

What to verify: Provide the full record and integration inventory before accepting a price. Confirm whether customer history, orders, redirects, blog content, reviews, subscriptions, custom features, taxes, shipping, analytics, and launch support are included.

Important limitation: High job-volume claims and a broad list of source platforms do not prove fit for complex enterprise migrations. Buyers should verify the people assigned, data limits, customization boundaries, and escalation process.

Which Agency Fits Your Migration Scenario?

The following groupings are starting points, not universal rankings.

Enterprise Magento or Legacy-Platform Migration

Start by investigating Absolute Web, Fyresite, Arctic Grey, Netalico, Lucent Innovation, and Optimum7. Each publishes evidence relevant to complex migration, custom functionality, or systems integration.

The deciding factor should be comparable scale. Ask about SKU count, order history, customer records, storefront count, markets, integrations, B2B requirements, subscription logic, and the source platform version.

B2B or ERP-Heavy Migration

Investigate Arctic Grey, Fyresite, Optimum7, Absolute Web, and Lucent Innovation. Their public profiles discuss B2B, ERP, custom applications, or broader integration work.

Do not accept “ERP integration included” as sufficient detail. The proposal should identify the system of record for products, inventory, customers, pricing, orders, tax, and fulfillment, together with sync direction and failure handling.

Mid-Market DTC Migration with Continuing Support

Netalico, Arctic Grey, Fyresite, Absolute Web, and Lucent Innovation may warrant investigation where migration is followed by continuing storefront development, analytics, or conversion work.

Separate launch acceptance from future optimization. Otherwise, unresolved migration defects can disappear into a continuing retainer.

Smaller or More Defined Migration

Ruby Digital Agency and StoreFix may be useful starting points when the source store has a manageable catalog, few custom integrations, and a clearly bounded scope.

Lower complexity does not eliminate the need for backups, redirects, test orders, data reconciliation, analytics checks, and a rollback decision.

Shopify Migration Complexity Matrix

How to Compare Agency Proposals

Give each shortlisted agency the same written brief. At minimum, require proposals to cover:

1. Discovery: Existing platform, catalog, traffic-critical pages, applications, integrations, reports, and business workflows.
2. Data scope: Records and fields included, excluded, transformed, archived, or recreated.
3. Architecture: Shopify plan, storefront approach, applications, custom code, integrations, and systems of record.
4. SEO continuity: URL inventory, redirect ownership, content and metadata decisions, canonical handling, and monitoring.
5. Testing: Data reconciliation, functional QA, test orders, payments, refunds, taxes, shipping, email, analytics, accessibility, and performance.
6. Cutover: Data-freeze timing, final delta import, DNS sequence, stakeholder roles, go/no-go authority, and communication.
7. Rollback: Measurable triggers, decision owner, recoverable systems, data treatment, and associated cost.
8. Stabilization: Support period, severity levels, response times, monitoring, defect ownership, and knowledge transfer.
9. Commercial scope: Assumptions, exclusions, third-party fees, change control, payment milestones, and warranty terms.

The cheapest proposal may simply exclude work included by another agency. Normalize the scope before comparing price.

Migration Acceptance Checklist

Before approving launch, agree on measurable acceptance conditions such as:

• Expected records reconcile against migrated records and documented exclusions.
• Product variants, inventory, collections, media, and metafields pass sampled field-level checks.
• Customer and order relationships remain usable for the approved business workflows.
• Subscriptions, gift cards, loyalty, reviews, and returns follow the agreed migration path.
• All critical integrations pass success and failure tests.
• Priority URLs return the intended page or one direct redirect to the closest equivalent.
• Canonical tags, metadata, structured data, robots directives, and sitemaps match the approved design.
• Payment, shipping, taxes, discounts, refunds, notifications, and analytics pass test scenarios.
• Permissions, secrets, logging, backups, incident ownership, and rollback conditions are documented.
• Staff receive operating documentation and know who owns each system after launch.

Warning Signs When Interviewing an Agency

Be cautious when an agency:

• Guarantees zero ranking loss, zero downtime, or zero data loss without defining measurement and exclusions.
• Quotes a complex migration before reviewing the source data and integrations.
• Cannot explain reconciliation beyond comparing total row counts.
• Treats redirects as an activity to complete after launch.
• Recommends copying every application without reviewing whether it is still needed.
• Avoids naming the delivery team or relies on credentials belonging to people not assigned to the project.
• Has no rollback trigger or says rollback will be decided if something goes wrong.
• Leaves analytics, email, tax, shipping, refunds, or post-launch monitoring outside the test plan.
• Uses partner tier or client logos as a substitute for comparable references.

Final Selection Guidance

Begin with project similarity rather than reputation alone. A useful migration reference matches several of your conditions: source platform, catalog scale, customer and order history, integration landscape, industry, business model, and launch constraints.

Shortlist two or three agencies and ask each to respond to the same requirements. Interview the people who will actually perform the work. Then compare evidence, assumptions, exclusions, acceptance criteria, rollback planning, and stabilization—not just presentation quality or price.

No article can identify the best agency for every merchant. It can help you ask better questions and reject proposals that leave critical migration risks undefined.

For broader development requirements beyond migration, compare the Shopify development companies serving US merchants. You can also review the site's technology-provider guides and editorial standards for the methodology used in these shortlists.