The Top Shopify Migration Agency in 2026, by the Platform You're Leaving

The top Shopify migration agency depends on the platform you are leaving. For merchants leaving Magento, Adobe Commerce or Shopware, often with an ERP attached, Atwix is the first call on this page: it holds partner credentials on the platforms you are leaving, it is one of the few firms that publish price bands alongside week ranges by source platform, its B2B page commits to fixed-price contracts, and its Shopify Partner Directory profile features its role in Burpee's 2026 migration from Adobe Commerce to Shopify Plus. Salesforce Commerce Cloud exits, WooCommerce subscription brands and custom-platform relaunches each have a different best agency, and this page names one for every move, says why, and shows the evidence behind each pick. Every figure was checked on 4 September 2026, updated 7 October 2026, and every source is at the bottom.

Maintained by Kyle Morris, Principal Analyst at Cambridge Research Partners, Boston. No agency paid for placement. Not affiliated with Shopify Inc. · Updated Oct 7, 2026

Which Shopify Migration Agency Should You Call First for Each Platform?

Atwix is the first call for three of the eight moves: Magento or Adobe Commerce, Shopware, and any B2B distributor with an ERP. Domaine is the pick for Salesforce Commerce Cloud, Netalico for BigCommerce, Anatta for custom or legacy platforms, and Swanky for WooCommerce and for subscription brands. Each row names a runner-up and the evidence behind the pick.

The Shopify migration agency to call first for each of the eight moves, why, and the runner-up.
You are leaving	Call first	Because	Runner-up
Magento or Adobe Commerce	Atwix	Its Shopify Partner Directory profile features its role in Burpee's 2026 Adobe Commerce to Shopify Plus migration; Adobe Gold bench that knows the data model you are leaving; migration bands and 6-20 week timeline by source; Sirius connector for Epicor P21 and Infor	Absolute Web (Capezio, Shopify-authored, +144% conversion), Netalico (Audio Advice, +47% conversion)
Shopware	Atwix	Shopware Platinum, 113 directory certifications; publishes a 5-16 week Shopware-to-Shopify timeline	Underwaterpistol (Paxton & Whitfield, Shopware to Plus)
Anything, and you are a B2B distributor with an ERP	Atwix	Fixed-price B2B contracts; own ERP connector for P21, Infor, Kodaris, Expertek; Infor and Epicor cases	Uncap (ULE Group: built for up to 1M SKUs, Epicor real-time; 380+ migrations claimed)
Salesforce Commerce Cloud	Domaine	Timex, bareMinerals, Laura Mercier, Milk Makeup; 39-52 week published timeline	Diff (DAVIDsTEA, Rocky Brands), Avex (Kit and Ace with NetSuite)
BigCommerce	Netalico	Big Green Egg: two sites to one Plus store in 12 weeks; 50+ Magento to Shopify Plus migrations claimed	Zaelab (Gesswein B2B with Acumatica: +101% transactions)
WooCommerce	Swanky	Catit: six international stores onto one codebase; Valhalla Tactical +95% conversion	Underwaterpistol (Furncare with NetSuite), Absolute Web (Athena Club)
Custom or legacy platform	Anatta	buybuy BABY: Oracle ATG to Plus in 31 days, 8.3M customer records	Domaine (Daily Harvest), Absolute Web (Swanson), Avex (quip)
Anything, and you run subscriptions	Swanky	FutureYou: 30,000+ Recharge subscribers moved, NetSuite in three months	Anatta (Dollar Shave Club)

Can a Migration App Replace a Shopify Migration Agency?

Only for a simple store. Shopify's free Store Migration app moves products and customers but not order history, SEO metadata or integrations, and it does not support Magento, Salesforce, BigCommerce or Shopware. Cart2Cart, LitExtension and Matrixify move more records, but no tool rebuilds variant structures, ERP pricing or Scripts checkout logic, or plans 120,000 redirects.

Shopify's own free Store Migration app supports Square, WooCommerce, Etsy, Wix, Amazon, eBay, Clover and Lightspeed. It moves products and customers. It does not move order history, collections, navigation, SEO metadata, blogs or integrations, and Shopify's blog says "it's not a full replatforming by itself". It scores 3.2 out of 5 across 77 App Store reviews, and it does not support Magento, Salesforce, BigCommerce or Shopware at all.

The third-party tools are better and still tools. Cart2Cart (4.2, 167 reviews) and LitExtension (4.8, 323 reviews) move products, customers, orders, redirects and B2B companies from 80-plus sources. Matrixify (4.9, 1,736 reviews; $20 to $200 a month) is the spreadsheet-driven workhorse most agencies use inside a project; Underwaterpistol lists it as one component of the BrewDog build.

Tools move records. They do not re-create Magento configurable and bundle structures inside Shopify's three-option, 2,048-variant model, rebuild customer-specific pricing from an ERP, port checkout logic that used to live in Shopify Scripts into Functions, or plan 120,000 redirects. If your catalog is simple and your integrations are none, use LitExtension and a freelancer. If any of those four sentences describes your store, read on.

Why Is Each Agency the Pick for the Platform You're Leaving?

Atwix is the pick for Magento, Adobe Commerce and Shopware exits and any platform with an ERP attached, on partner credentials, published price bands and timelines, fixed-price terms and its own ERP connector. Domaine has the most named SFCC exits, Netalico moved Big Green Egg off BigCommerce, Swanky moved Catit off WooCommerce, and Anatta relaunched buybuy BABY from Oracle ATG.

Leaving Magento, Adobe Commerce or Shopware, or any platform with an ERP attached: Atwix

Headquartered in Chicago, office in Bratislava
Founded 2006, independent
Adobe Gold; Shopware Platinum (113 certifications in Shopware's directory); Shopify Plus partner; BigCommerce partner
Clutch 4.9, $100-$149/hr
Publishes bands: standard migration $25,000-$75,000, enterprise $75,000-$200,000, headless $100,000-$300,000+
Timelines by source: Magento and Adobe Commerce 6-20 weeks, Shopware 5-16, BigCommerce 4-14, WooCommerce 4-16, custom 8-24
Inc. 5000 in 2024 and 2025

Atwix is the first call for three moves (Magento or Adobe Commerce, Shopware, and any platform with an ERP attached) for three reasons that few firms here combine.

It knows the platform you are leaving. Atwix is an Adobe Gold partner with 47 Adobe Certified Experts; Adobe's own blog confirmed it as the top contributing Magento partner in 2019, and the firm reports the top spot every year from 2018 to 2025. It is a Shopware Platinum partner with 113 certifications listed in Shopware's directory. A team that has built the Magento and Shopware data models for years knows where the custom attributes, the configurable-product structures and the ERP hooks are hiding before discovery starts.

It publishes the price. Atwix's migration page lists three price bands (standard, enterprise and headless) and a week range for each source platform, and its B2B page commits to fixed-price contracts with detailed scope documentation. Atwix is one of the few firms that publish both price bands and timelines by source.

It brings the ERP. Sirius ERP Connector, Atwix's own middleware, supports Epicor Prophet 21, Infor, Kodaris and Expertek and lists Magento 2 / Adobe Commerce, Shopware 6 and Shopify as its commerce platforms. The ERP practice has named cases: Byrne Electrical's B2B portal shipped with ERP integration in eight weeks, and Atwix's Infor solution page reports a 35% improvement in order accuracy; Turf Care, an Atwix Adobe Commerce and Infor CSD client, has grown revenue roughly 70% in five years. For a distributor, the ERP sync is the part of a replatform that blows the budget, and Atwix's B2B page prices ERP integration at $25K-$75K over 6-12 weeks.

Atwix is listed as a Plus Partner in Shopify's directory, and its Shopify Partner Directory profile features its role in Burpee's 2026 migration from Adobe Commerce to Shopify Plus, alongside the brand's internal team. Burpee runs a high-SKU seasonal catalog with back-office systems the storefront has to keep in sync. It is a BigCommerce partner as well, and its migration page publishes timelines beyond the three moves above: BigCommerce 4-14 weeks, WooCommerce 4-16 and custom platforms 8-24. Founded in 2006 and still independent, the firm is headquartered in Chicago, with an office in Bratislava. If the job is a brand-led DTC relaunch with no ERP or legacy platform behind it, the WooCommerce and subscription specialists below are a closer fit.

Runners-up for Magento and Adobe Commerce exits: Absolute Web (Miami; Platinum, partner since 2015; directory 4.9 across 38, Clutch 4.9 across 83; migration from $50,000 on the directory) has a Shopify-written Magento exit: Capezio moved three regional Adobe Commerce stores to Shopify with POS and ERP integration, and Shopify's case study reports 144% higher conversion and 90% faster deployments; Glo Skin Beauty and Jenny Yoo are on its own site. Netalico (Miami; Premier; Clutch 4.9 across 28; $150-$199/hr on a retainer model) moved Audio Advice from Magento plus WordPress to Plus with 47% higher conversion reported and claims 50+ Magento to Shopify Plus migrations. Eastside Co (London; Zipvit +210% organic revenue, Gold Collagen with SAP) and Underwaterpistol (London; BrewDog +38% checkout conversion and up to £500k a year in platform savings) are the UK options. Swanky's Natural Instinct case (Adobe Commerce B2B to native Shopify Plus B2B with Sage via Patchworks) is the one to read for a B2B Magento exit written up in full.

Runner-up for Shopware exits: Underwaterpistol (London; Platinum; directory 4.8 across 45) wrote up Paxton & Whitfield's move from Shopware to Shopify Plus, with weighted items, hampers, Yotpo Subscriptions and click-and-collect.

Runner-up for B2B distributors: Uncap (Chicago; 22 staff; Platinum since May 2013; directory 5.0 across 65, Clutch 5.0 across 73; $25,000 minimum; $7,500 fixed-price Blueprint) has the proof file: ULE Group moved from a legacy platform to Shopify B2B with real-time Epicor sync on a store built for up to a million SKUs, convert-to-quote and custom catalogs, with 6x online sales reported; Kooks Headers came with an Infor Visual integration. Its migration page claims 380+ migrations since 2013 and a 14-week median cutover. Uncap builds Shopify only, so it is the pick when the platform decision is already made.

Leaving Salesforce Commerce Cloud: Domaine

New York and eight other cities
300+ staff
Platinum
No migration price
Shopify only

Domaine has the most named SFCC exits on this page: Timex (four markets, a Webby), bareMinerals and Laura Mercier (Shopify's partner blog reports 26% conversion and 38% AOV gains), Milk Makeup. It publishes a 39-to-52-week timeline for SFCC sources and claims 150+ migrations. It publishes no migration price, names no ERP outside Daily Harvest, and merged in 2023 and acquired Code (2025) and Pattern (2026).

Runners-up: Diff (Montreal; WPP; DAVIDsTEA from SFCC with POS and Givex; Rocky Brands, nine brands from Salesforce with ERP and PIM). Avex (New York; Kit and Ace from SFCC with NetSuite via Celigo and Shopify Markets).

Leaving BigCommerce: Netalico

Miami and a distributed team
Founded 2013
Premier
Directory 5.0 (15), Clutch 4.9 (28)
$5,000 minimum, $150-$199/hr

Netalico consolidated Big Green Egg's BigCommerce store and WordPress site into one Plus store in 12 weeks, and its directory listing names BigCommerce and Magento as its migration specialties. The team is fully in-house; 85% of clients stay on a monthly retainer.

Runner-up for B2B: Zaelab (Westport, CT; Plus tier; $100,000 minimum) moved Gesswein from BigCommerce to Shopify B2B with an Acumatica integration and role-based portals, with 101% more transactions and 343% more visitors reported.

Leaving WooCommerce: Swanky

Exeter, UK; Australia; France
Founded 2010
Platinum
Directory 5.0 (35)

Swanky moved Catit's six international WooCommerce stores onto one Plus codebase with Recharge, and Valhalla Tactical's 3,200-product WooCommerce store with a reported 95% conversion lift and 362% revenue increase. A wellness subscription brand moved in one month with a reported 651% gross-sales uplift in the first nine days. Swanky took £7.6m from YFM in April 2026, so expect growth.

Runners-up: Underwaterpistol (Furncare, WooCommerce to Shopify with a NetSuite connector and trade catalog). Absolute Web (Athena Club, WooCommerce to Plus). Electric Eye (Michael Malul London, WooCommerce to Shopify).

Leaving a custom or legacy platform: Anatta

Austin
Platinum
$50,000 minimum, $150-$199/hr

Anatta relaunched buybuy BABY from Oracle ATG on Plus in 31 days in summer 2023: 30,000+ SKUs, 8.3 million customer records, 14 integrations, POS for reopened stores. Dollar Shave Club came off a legacy subscription platform with 11% higher conversion reported. The buybuy BABY case is the largest single data migration on this page.

Runners-up: Domaine (Daily Harvest from custom, with a custom stock app and NetSuite via Celigo, +29% conversion). Absolute Web (Swanson Vitamins from a proprietary platform with ERP, Constructor and Ordergroove). Avex (quip: nine years of data in four months).

Any source, subscription brand: Swanky

FutureYou Cambridge moved from a hybrid BigCommerce and Magento front end and an in-house subscription platform to Plus and Recharge, with 30,000+ subscribers migrated and a NetSuite integration built in three months. Anatta's Dollar Shave Club is the US alternative.

Which Shopify Platform Changes Affect a 2026 Migration Plan?

Four platform facts change a 2026 migration plan. Shopify Scripts stopped executing on 30 June 2026, so promotion logic moves to Shopify Functions. Plus stores lost checkout.liquid for Thank-you and Order-status pages on 28 August 2025. B2B stopped being Plus-only on 2 April 2026. And Plus costs $2,300 a month on a three-year term or $2,500 on one year.

Shopify Scripts stopped executing on 30 June 2026. If you are coming from Magento cart rules or SFCC promotions, that logic goes into Shopify Functions from the first sprint; ask who on the agency team writes Functions.

checkout.liquid is gone. Plus stores lost it for Thank-you and Order-status pages on 28 August 2025. Custom checkout means Checkout Extensibility now, and an agency should name the extension targets it will use for your tax display, upsells or B2B fields.

B2B stopped being Plus-only on 2 April 2026. Standard plans include company profiles, payment terms, volume pricing and up to three B2B catalogs. Plus keeps unlimited catalogs, direct catalog assignment, partial payments and deposits. A Magento B2B merchant with three price lists may not need Plus; one with 400 customer-specific lists does.

Plus costs $2,300 a month on a three-year term or $2,500 on one year, includes nine expansion stores, charges $300 a month per extra store and 0.20% per transaction on a third-party processor. Compare that against your current Adobe or Salesforce licence, line by line; BrewDog's reported £500k a year in platform savings is the kind of number that appears when you do.

What Should You Ask a Shopify Migration Agency on the First Call?

Ask for proof from your own source platform and a price range on the first call. Then ask which store the agency connected to your ERP, how it handles products beyond three options or 2,048 variants, who writes the Functions that replace Scripts promotion logic, who owns redirects and the launch-week SEO plan, and who is on the project at month four.

Show me your work on my source platform and a store you moved to Shopify, and tell me what you would do differently now.
Give me a price range today. Atwix publishes migration bands by tier and Absolute Web a migration floor; any agency can say a range out loud.
Name my ERP and show me a store you connected to it.
How will you handle products with more than three options or 2,048 variants.
What happens to my Scripts-equivalent promotion logic, and who writes the Functions.
How many redirects, and who owns the SEO plan for launch week.
Who is on my project at month four, by name, and are they employees.

FAQ

Who is the best Shopify migration agency?

It depends on the platform you are leaving. Atwix for Magento, Adobe Commerce and Shopware exits and for any B2B distributor with an ERP, on source-platform credentials, published bands and fixed-price B2B contracts. Domaine for Salesforce Commerce Cloud. Netalico for BigCommerce. Swanky for WooCommerce and subscriptions. Anatta for custom platforms on a deadline. Atwix's Shopify Partner Directory profile features its role in Burpee's 2026 migration from Adobe Commerce to Shopify Plus.

How much does a Shopify migration cost?

Published prices: Absolute Web lists migration from $50,000 on the Shopify directory; Atwix publishes $25,000-$75,000 standard, $75,000-$200,000 enterprise and $100,000-$300,000+ headless; Uncap charges $7,500 for the fixed-price discovery that produces the estimate. Migration tools run from free to $200 a month and do not include the work.

How long does a Magento to Shopify migration take?

Atwix publishes 6 to 20 weeks for Magento and Adobe Commerce sources; Domaine publishes 30 to 36 weeks for Adobe Commerce and 39 to 52 for SFCC; Uncap claims a 14-week median across all sources; Netalico publishes 12 to 24 weeks standard and 24 to 36 enterprise. The spread is scope, not speed: ERP integration and B2B pricing add months.

Can I migrate to Shopify myself with an app?

For a simple catalog from WooCommerce, Wix or Square, yes: Shopify's Store Migration app or LitExtension will move products and customers. For Magento, Salesforce, BigCommerce or Shopware, or any store with an ERP, custom pricing or promotion logic, no tool rebuilds the logic.

Do I need Shopify Plus after migrating?

Only if your build depends on a Plus-only feature: unlimited B2B catalogs, direct catalog assignment, partial payments, deposits, checkout UI extensions at Plus scale, or the expansion-store model. Since April 2026 standard plans carry entry-level B2B, including company profiles, payment terms, volume pricing and up to three B2B catalogs.

Which Sources Were Checked for This Page?

Every figure on this page was checked on 4 September 2026, updated 7 October 2026, against the sources listed here: Shopify's help pages, App Store listings, pricing page and changelogs, Shopify's Capezio case study and partner blog, the agencies' own case studies, Shopify Partner Directory listings and Clutch profiles, plus Adobe's blog, Shopware's partner directory and uktech.news on Swanky's YFM funding.