Top Shopify Migration Services For BigCommerce And Magento Stores In 2026

A BigCommerce to Shopify migration looks simple on paper, since both are hosted SaaS platforms, but the details decide whether the move pays off. Product options, customer groups and price lists, B2B logic, custom fields and years of order history all have to be mapped to Shopify equivalents, and every category and product URL needs a redirect. Brands leaving BigCommerce often cite total cost of ownership, app and partner ecosystem depth and the pace of Shopify’s checkout and B2B features.

Magento and Adobe Commerce stores face a different kind of pressure. Upgrades, extension conflicts, hosting and security patching consume developer budgets, and many brands that built on Magento years ago now want a platform where the team can launch pages and campaigns without a release cycle. When a business runs one brand on BigCommerce and another on Magento, moving both to Shopify also means one admin, one app stack and one set of skills to hire for.

Many of the merchants making that switch are also consolidating older Magento or Adobe Commerce stores, or running both platforms across different brands and regions. This guide focuses on Shopify migration services that publish a BigCommerce offer on their own sites, and on enterprise replatforming partners that handle BigCommerce and Magento in the same program. Each entry was checked against its own website for the source platforms it names, how it runs the project and where it is based.

If Magento is your only source platform, our dedicated guide to the top Magento to Shopify migration companies covers specialists in that single move, and WooCommerce merchants should see the top Shopify migration services for WooCommerce stores.

BigCommerce And Magento To Shopify Migration Services At A Glance

Company	Based In	Best For	Standout
Realm	Duluth, Minnesota	BigCommerce and Magento stores wanting a Shopify-only team	Has migrated hundreds of stores
Human After All	Montreal, with offices in Miami and Paris	Mid-market B2B manufacturers and distributors	Shopify Select Partner, former BigCommerce B2B agency
ECommerce Partners	Tenafly, New Jersey	Enterprise brands on Magento, Adobe Commerce, BigCommerce or SFCC	100+ stores migrated to Shopify Plus
Web Ecommerce Pros	Cheyenne, Wyoming	BigCommerce stores wanting a structured cutover	13-step process, BigCommerce Certified Partner
Fourmeta	London, UK	UK brands wanting published starting prices	Migration packages from £9,000
OptiExperts	London, UK	Rankings-sensitive replatforms	Post-migration SEO monitoring built in
Onilab	San Francisco and Warsaw	Magento-heavy catalogs	Old store stays live throughout the move
dekstech	United States	Eight and nine figure brands	250+ clients served
Cyblance	Ahmedabad, India	Cost-conscious BigCommerce migrations	Free 15-day post-migration support
Naturaily	Poland	Magento stores considering headless Shopify	Hydrogen and Next.js storefront builds

Best BigCommerce To Shopify Migration Services In 2026

1. Realm — Minnesota Shopify Plus Agency That Has Migrated Hundreds Of Stores

Realm is a Minnesota-based Shopify agency with a mailing address in Duluth. It has built websites since 2007 and has worked only on Shopify since 2012, and it holds a Shopify Plus Experts badge. Its site reports 259 shops helped, 78,962 clocked hours and 122 five-star reviews.

Both BigCommerce and Magento are named on Realm’s migrations page, along with WooCommerce, Volusion, Wix, Squarespace, Etsy and CubeCart. The agency moves products with variants and photos, customers, orders and pages, builds the URL redirects and replaces the apps and extensions the old store depended on. It says it has migrated hundreds of stores.

Its five-step process is easy to follow: access the existing store, build a Shopify development store, transfer the data, perfect it before launch, then go live with redirects. For larger switchers, Realm’s Shopify Plus work covers custom checkouts, Plus-only apps and ERP integrations, and its Plus clients include Sunrise Flour Mill and GTFOverland. Build pricing is published, starting at $20k for “Start-up right” and $40k for “Grow”, with enterprise work quoted separately.

Realm also offers B2B wholesale setup, customer groups and custom filters through its theme development service, which matters for BigCommerce merchants who relied on customer groups and price lists. Crust Busters, a Monticello, Minnesota B2B food business, runs B2B memberships on a Realm-built store. After launch, the same team can take on SEO, from Basic on-site packages at $4k, and email and SMS marketing, so the migration partner does not have to be replaced once the store is live.

Services and expertise: BigCommerce, Magento, WooCommerce, Volusion, Wix, Squarespace, Etsy and CubeCart migrations; data transfer; URL redirects; app replacement; B2B wholesale setup; Shopify Plus custom checkouts and ERP integrations; SEO and marketing after launch.

2. Human After All — Shopify Select Partner And Former BigCommerce B2B Specialized Agency

Human After All is headquartered in Montreal, with offices in Miami and Paris. It is a Shopify Select Partner and an Akeneo partner, and it was previously a BigCommerce B2B Specialized Agency, which gives it unusual insight into what a BigCommerce B2B store actually does before it is moved.

Its BigCommerce to Shopify Plus service targets mid-market manufacturers, distributors and retailers. The page is candid that BigCommerce remains capable for many use cases, and frames the switch around total cost of ownership, B2B feature gaps and a thinning partner ecosystem.

Projects typically run 12 to 20 weeks in five phases: discovery and readiness assessment, build and integration, data migration and QA, soft launch, then full launch. It cites its own BigCommerce build for Atelier du Chef, a Quebec commercial kitchen equipment distributor with SAP ERP integration, thousands of SKUs, customer-specific pricing and real-time inventory sync, as the kind of complexity it plans for. For BigCommerce B2B merchants with a live ERP, that phased soft launch is a meaningful safeguard, because integrations can be proven on real orders before all traffic moves.

Services and expertise: BigCommerce to Shopify Plus replatforming; B2B price lists and customer-specific pricing; ERP and PIM integration including Akeneo; phased soft launch and full launch.

3. ECommerce Partners — Shopify Plus Partner Migrating Magento, BigCommerce And SFCC Stores

ECommerce Partners, known as ECP, is a certified Shopify Plus development partner based in Tenafly, New Jersey, with more than 25 years of ecommerce experience. Its platform migrations page names Magento, Adobe Commerce, BigCommerce, WooCommerce and Salesforce Commerce Cloud, which makes it a natural fit for groups consolidating several platforms onto Shopify Plus.

The six-phase method runs from discovery and audit through architecture planning, data migration, theme and feature build, QA and testing, and launch and support. ECP gives honest timelines by source: 8 to 12 weeks for straightforward migrations and 12 to 24 weeks for complex Magento and Adobe Commerce projects with large catalogs, custom extensions and B2B logic.

The site reports more than 100 stores migrated, and its client list includes Chantecaille, QC Supply and KOL Foods. The QC Supply case study reports PageSpeed scores of 77 on mobile and 94 on desktop after the move. ECP also publishes a cost comparison that estimates three-year savings from leaving the current platform, a useful starting point for building an internal business case, though the figure depends on each store’s current costs.

Services and expertise: Magento, Adobe Commerce, BigCommerce, WooCommerce and Salesforce Commerce Cloud migration to Shopify Plus; architecture planning; theme and feature builds; B2B logic; launch support.

4. Web Ecommerce Pros — Shopify Expert And BigCommerce Certified Partner With A 13-Step Cutover

Web Ecommerce Pros is the trading name of Vistabit Technologies LLC, based in Cheyenne, Wyoming. It is both a Shopify Expert partner and a BigCommerce Certified Partner, so its team knows the source platform as well as the destination, and it says it works across more than 50 shopping carts including Magento, WooCommerce, Volusion, OpenCart, Shift4Shop and Zen Cart.

Its BigCommerce to Shopify service uses a semi-automated process that pairs migration tooling with human checks. Products, collections, pages, blogs, orders and customers are all in scope.

The 13-step process is the most granular on this list. It includes a change freeze on the old store, an initial migration and test pass, an agreed launch date, then separate pre-launch and post-launch passes for orders and customers so nothing placed during the cutover is lost. Each project ends with 30 days of complimentary post-launch support.

Services and expertise: BigCommerce to Shopify migration; Magento, WooCommerce, Volusion and Shift4Shop migrations; staged order and customer transfers; backup and contingency planning; 30-day post-launch support.

5. Fourmeta — London Shopify Partner With Published Migration Packages

Fourmeta is a London ecommerce agency based in Mayfair and an accredited Shopify Partner. Its migration service names Magento and Adobe Commerce, BigCommerce, WooCommerce, Wix, PrestaShop and custom-built platforms, and it reports more than 50 completed migrations.

Unusually for this category, Fourmeta publishes pricing: a Standard migration from £9,000, Premium from £15,000, and custom quotes for enterprise and Shopify Plus projects. Timelines run from 3 to 12 weeks depending on complexity.

The six phases cover consultation and audit, an SEO and data protection strategy, design replication or redesign, app mapping and integrations, testing and QA, then launch with post-launch support. Its portfolio includes Crep Protect, Josh Wood Colour and Krispy Kreme. The published package prices make Fourmeta a useful benchmark even for merchants who end up choosing a different partner, since they show roughly where a UK agency migration starts before custom work is added.

Services and expertise: Magento, Adobe Commerce, BigCommerce, WooCommerce, Wix and PrestaShop migrations; 301 redirects and SEO protection; redesign or design replication; app mapping and integrations.

6. OptiExperts — London Shopify Partner Focused On SEO-Safe Replatforming

OptiExperts is a London Shopify migration and optimization agency and a certified Shopify Partner. Its migration page names Magento, WooCommerce, BigCommerce, WordPress, Wix and Squarespace as source platforms, with Shopify or Shopify Plus as the destination.

The pitch is search protection. Scope covers product data transfer, customer and order migration, 301 redirect mapping, SEO preservation, app integration and full technical validation, with metadata and structured data carried across.

The six-step process runs from technical audit and discovery through data mapping, an SEO and redirect strategy, the Shopify build, QA and go-live validation, then post-migration monitoring and optimization. It quotes 3 to 6 weeks for a standard migration, depending on store size and custom functionality.

Services and expertise: BigCommerce, Magento, WooCommerce, Wix and Squarespace migrations; redirect mapping; structured data retention; technical validation; post-migration monitoring and conversion optimization.

7. Onilab — San Francisco And Warsaw Team That Keeps The Old Store Live

Onilab is an ecommerce development agency with offices in San Francisco and Warsaw and more than 10 years of experience. Its Shopify migration service names Magento, WooCommerce, BigCommerce, PrestaShop and Squarespace, and with Magento listed first among its source platforms, it is a practical option for groups leaving Magento and BigCommerce in the same program.

The scope covers product data with SKUs, prices, attributes and categories, customer information, complete order history, pages and content, images, SEO metadata and URL structures, and reviews. Onilab also offers theme redesign, payment gateway integration, app migration and conversion work within the same project.

The process has four stages: research into the current architecture, planning of scope and timeline, migration of data and integrations, and go-live with QA. Onilab stresses that the old store keeps running throughout, so sales continue until the cutover.

Services and expertise: Magento, BigCommerce, WooCommerce, PrestaShop and Squarespace to Shopify migration; custom development; theme redesign; app and payment gateway migration; SEO metadata and URL structure transfer.

8. dekstech — US Shopify Partner Serving Eight And Nine Figure Brands

dekstech is a US-based Shopify development agency and Shopify Partner whose team holds Shopify Academy development credentials. Its site reports more than 250 clients served and over $100 million in supported revenue, and it focuses on eight and nine figure brands.

Its BigCommerce to Shopify service transfers products with names, descriptions, prices, SKUs, weights and inventory details, along with images, categories, customer profiles, order histories, blog posts, pages, reviews and SEO settings. It also publishes a separate Magento to Shopify migration service.

The eight-step process runs from initial consultation and mapping through CSV-based data preparation and import, store setup and theme configuration, testing, a launch with minimal downtime and ongoing support. Speed optimization, conversion work and technical SEO are available once the store is live, which lets a growing brand keep the same developers after the migration rather than onboarding a new agency.

Services and expertise: BigCommerce, Magento, WooCommerce and Squarespace to Shopify migration; Shopify Plus development; speed optimization; conversion rate optimization; technical SEO.

9. Cyblance — Ahmedabad Development Firm With Free 15-Day Post-Migration Support

Cyblance Technologies is headquartered in Ahmedabad, India, and also serves US clients with a US phone line. Its BigCommerce to Shopify service page is dedicated to this single move rather than a generic multi-platform offer.

The data list is thorough: products, categories, images, CMS pages, customers, pricing and inventory rules, billing information, SEO settings, manufacturers, taxes, orders, coupons, reviews and blogs. Custom features can be built where the new store needs functionality BigCommerce provided natively.

Its four-stage method runs through analysis of migration methods, a step-by-step strategy, migration and development, then QA and go-live. Each project includes 15 days of free post-migration support, which suits smaller BigCommerce stores looking for an affordable, focused migration partner.

Services and expertise: BigCommerce to Shopify migration; pricing, tax and inventory rule transfer; custom feature development; QA testing; 15-day post-migration support.

10. Naturaily — Polish Shopify Developer Moving Magento Stores To Standard Or Headless Shopify

Naturaily is a Polish web development agency that builds, redesigns and migrates Shopify stores. Its migration service names Magento, WooCommerce, Shopware, PrestaShop and custom ecommerce builds as source platforms, moving to Shopify or Shopify Plus, and it also publishes a detailed BigCommerce to Shopify migration guide.

Migrations cover products and SKU data, customer records, order history, content and URLs, and integration configuration, with SEO preservation through URL mapping, 301 redirects and canonical cleanup. The five-stage model runs from discovery and scoping through design and architecture, build, testing and launch, and post-launch support.

Its Magento to Shopify case study for Bronson Labs reports 70% less development time and three times lower maintenance costs after the move. Naturaily also builds headless Shopify storefronts with Hydrogen and Next.js, while saying plainly that it will advise against headless when a brand does not need it.

Services and expertise: Magento, WooCommerce, Shopware and PrestaShop to Shopify migration; Shopify Plus; headless Hydrogen and Next.js storefronts; custom apps and integrations; SEO preservation.

How To Choose A BigCommerce To Shopify Migration Partner

A BigCommerce to Shopify migration and a Magento to Shopify migration share the same risks, but in different proportions. BigCommerce projects usually hinge on product options, customer groups and B2B pricing, while Magento projects add custom extensions and heavier integrations. These questions help you judge a partner on the parts that matter for your store.

Has The Partner Worked On Your Source Platform, Not Just Shopify?

Ask for BigCommerce or Magento projects specifically, and ask how the partner maps modifiers, option sets, customer groups and custom fields into Shopify variants, metafields and B2B catalogs. Partners with experience on the source side, such as former BigCommerce agencies or teams with Magento backgrounds, tend to spot hidden logic earlier.

How Will B2B Pricing And Customer Groups Be Rebuilt?

Customer-specific pricing and group discounts are the most common gap in a BigCommerce to Shopify move. Confirm whether the plan uses native Shopify B2B on Plus, apps or custom work, and see our guide to the top Shopify agencies for B2B and wholesale ecommerce if trade customers are a large share of revenue.

What Happens To Integrations With ERP, PIM And 3PL Systems?

Enterprise stores leaving BigCommerce or Magento rarely stand alone. List every system that reads or writes store data, and ask the partner to show where each integration is rebuilt, replaced or retired, and who tests the sync before launch. Phased approaches with a soft launch reduce risk here.

How Are Rankings And Order Continuity Protected At Cutover?

Ask for a redirect map covering products, categories, brand pages and blog posts, and ask how orders and customers placed during the final days on the old platform are captured. Staged pre-launch and post-launch data passes and a change freeze on the old store are good signs.

How Long Will It Take, And What Should It Cost?

Published timelines on this list range from 3 to 6 weeks for a standard migration to 12 to 24 weeks for complex Magento and Adobe Commerce programs with custom extensions and B2B logic. BigCommerce stores with clean catalogs usually sit at the shorter end, while multi-store, multi-currency or ERP-connected setups sit at the longer end. Ask for quotes that separate data migration, design and build, integrations and SEO, and be wary of a single low figure that does not say what is included. Where a partner publishes starting prices, use them to sanity-check the rest of your shortlist.

Should We Move To Shopify Plus?

Brands with high order volume, several storefronts, B2B catalogs or checkout customization needs usually land on Shopify Plus. Ask each partner to explain the case for Plus against standard Shopify for your store, and compare with the top Shopify Plus agencies for high-volume merchants if a full build is on the table.

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Moving A Magento Store To Shopify

A Magento or Adobe Commerce move usually carries more risk than a BigCommerce move. Magento stores often rely on many extensions, custom B2B pricing and customer groups, and deep category and URL structures that all need a plan before launch.

Most partners on this list state Magento experience. Realm names both BigCommerce and Magento on its migrations page and replaces the apps and extensions the old store depended on. ECommerce Partners names Magento and Adobe Commerce and gives 12 to 24 weeks for complex Magento and Adobe Commerce projects with large catalogs. Fourmeta and OptiExperts both list Magento with SEO and redirect strategies, Onilab lists Magento first among its source platforms and transfers SEO metadata and URL structures, dekstech publishes a separate Magento to Shopify service, and Naturaily covers URL mapping, 301 redirects and canonical cleanup. Web Ecommerce Pros also names Magento among the carts it works with.

When comparing quotes, ask how each partner will replace key extensions, rebuild B2B pricing and map every old URL to its new Shopify address.

Frequently Asked Questions

How long does a BigCommerce to Shopify migration take?

It depends on catalog size, integrations and custom features. On this list, OptiExperts quotes 3 to 6 weeks for a standard migration, Fourmeta 3 to 12 weeks depending on complexity, and ECommerce Partners 8 to 12 weeks for straightforward migrations. Human After All says its BigCommerce to Shopify Plus projects typically run 12 to 20 weeks, so B2B stores with ERP integrations should plan for the longer end.

Will I lose SEO rankings when migrating to Shopify?

Some short-term movement is common, but a careful migration limits the risk. The main safeguards are 301 redirects from every old URL, carrying over page titles and meta descriptions, and checking for broken links after launch. Partners such as OptiExperts, Onilab and Naturaily list redirect mapping and SEO preservation in their migration scope.

Can I migrate from Magento to Shopify without losing customer and order data?

Yes, customer records and order history can be moved, and several partners on this list include them in scope, including Realm, Onilab, dekstech and Naturaily. Web Ecommerce Pros runs separate pre-launch and post-launch passes for orders and customers so recent activity is not missed. Customer passwords usually cannot be transferred, so plan how customers will reset their accounts after launch.

Related on ReVerb: Volusion Development And Integration Companies

Conclusion

A BigCommerce to Shopify migration is a chance to reduce platform cost and complexity, but only if product logic, pricing rules, integrations and SEO move with it. The partners above all publish Shopify migration services on their own sites that name BigCommerce, Magento or both, and they range from focused migration specialists to enterprise replatforming teams.

Shortlist two or three partners whose experience matches your source platform, B2B needs and integration stack, and compare written scopes line by line. If your move is Magento to Shopify migration alone, the Magento-specific companion guide is the better starting point, while merchants moving from BigCommerce to Shopify, or both platforms at once, should start with the partners here.

If you want to feature your Shopify migration company on this list, email us or submit a form in the Top Choices section. After a thorough assessment, we’ll decide whether it’s a valuable addition.