Migrating to Shopify Plus can be a game-changer for growing eCommerce businesses, but making the switch smoothly requires the right expertise. In this article, we’ve curated a list of the top Shopify migration to Plus experts who specialize in handling complex replatforming projects.
These agencies not only manage the technical lift but also help optimize performance, preserve SEO value, and tailor the experience to meet the demands of high-growth brands. Whether you’re moving from Magento, WooCommerce, BigCommerce, or a custom platform, these experts know how to make the transition efficient and scalable.
Realm is a full-service Shopify agency started by one of Shopify’s first experts. Since 2012, they have built successful stores for Fortune 500s, start-ups and Shopify Plus. They’re known for their Shopify expertise, pixel perfect aesthetics and an in-depth understanding of visitor’s shopping experience. Because of their proven track record of increasing sales, ROAS and delivering the best ROI for their clients, they are one of the most sought-after Shopify agencies.
Realm has worked with over 250+ brands and has established an impressive reputation with countless 5-star reviews. When you work with Realm, you can expect top-notch service and a dedication to the success of your brand backed by support for the years to come.
Services and expertise: Shopify store set‑up & migrations, Shopify POS, custom theme design, app development, Shopify SEO, content writing, digital marketing (Facebook, Instagram, Email/SMS, Google), Shopify Plus enterprise, conversion optimization and ongoing support
Location: headquartered in the United States, operating globally
Team size: 2-10 employees
Portfolio: SYLTBAR, Byers’ Choice LTD, Lash & Wax OC, Freewaters, zkano, CoolSnowGlobes, Sunrise Flour Mill and more
Absolute Web is a digital commerce agency that helps brands build and scale their online presence through strategy, design, and development. With strong capabilities across multiple platforms, the agency has established deep expertise in Shopify Plus, supporting businesses through complex builds and optimization projects. Their work emphasizes performance, user experience, and long-term growth.
As one of the top Shopify migration to Plus experts, Absolute Web handles replatforming from Magento, WooCommerce, and other systems with a focus on data integrity, SEO continuity, and minimal disruption. The agency’s process blends technical precision with business strategy to deliver Shopify Plus experiences that are both robust and conversion-focused.
Services and expertise: Shopify Plus migrations, eCommerce development, UX/UI design, digital strategy, performance optimization
Location: Miami, FL (with offices in Los Angeles and Lisbon)
Tekglide is a U.S.-based eCommerce development agency with over a decade of experience delivering tailored online solutions for businesses in industries like fashion, beauty, and consumer goods. The agency specializes in building scalable, high-performing websites and supports clients throughout the development cycle, from planning to post-launch support. Known for its technical depth and flexible approach, Tekglide focuses on clean, responsive design and robust backend architecture.
The agency is well-positioned to support businesses undergoing a Shopify to Shopify Plus upgrade, helping clients unlock advanced features, automation tools, and multi-channel capabilities offered by the Plus platform. Tekglide handles migrations with an emphasis on data accuracy, performance optimization, and SEO continuity.
Services and expertise: Shopify to Shopify Plus upgrades, custom Shopify development, Magento to Shopify migrations, UX/UI design, maintenance
Swanky is a global eCommerce agency that has worked exclusively with Shopify since 2012. Founded in 2010, the agency was among the first in Europe to receive the ‘Shopify Plus Expert’ designation and was later named a ‘Shopify Platinum Partner’ in 2025. Known for its strategic and technical depth, Swanky serves mid-market and enterprise clients across the UK, US, Europe, and APAC.
Recognized as one of the best Shopify Plus migration experts, Swanky handles complex replatforming projects with a focus on performance, data integrity, and commercial impact. Their international team supports high-growth brands, especially in subscription-based models and industries like food & drink, pet care, and health & wellness. Swanky offers a full range of services, from custom development and UX design to data-driven strategy and international expansion.
Services and expertise: Shopify Plus migrations, subscription commerce, custom development, eCommerce strategy, internationalization
Location: the UK, Australia
Team size: 50-249 employees
Portfolio: FutureYou Cambridge, Initio Parfums Privés, Huel, Daysoft
CSSChopper is a web development company that offers custom eCommerce solutions, with expertise in Shopify and other leading platforms. Founded in 2009, the agency serves clients globally across industries like fashion, retail, automotive, and technology. Their services include Shopify theme development, migration, custom app integration, API development, and performance optimization. The team focuses on building secure, scalable, and feature-rich online stores tailored to specific business requirements.
As certified Shopify Plus partners, CSSChopper supports businesses looking to leverage the advanced features of Shopify Plus. Their Shopify services are geared toward both new store development and replatforming projects, with an emphasis on responsive design, clean code, and cross-platform compatibility.
Services and expertise: Shopify Plus development, theme customization, custom apps, headless commerce, API integration
OrangeMantra is a digital transformation and eCommerce development company that provides end-to-end technology solutions for businesses across various industries. The agency offers services ranging from web and mobile app development to enterprise solutions and digital commerce. Their Shopify practice includes theme customization, app integration, and platform migrations, aimed at helping businesses build flexible and scalable online storefronts.
Businesses looking to scale their operations can hire Shopify migration to Plus experts from OrangeMantra to support complex replatforming needs. The agency assists in moving stores from platforms like Magento, WooCommerce, or standard Shopify to Shopify Plus, with a focus on performance, security, and data integrity.
Services and expertise: Shopify Plus migrations, theme development, custom integrations, mobile commerce, enterprise solutions
Diff is a Canada-based eCommerce agency that focuses on the Shopify platform, offering end-to-end services for design, development, and optimization. Founded in 2011, Diff has worked with a wide range of brands to build high-performing, scalable online stores. The agency provides tailored solutions for both DTC and B2B merchants, with capabilities spanning UX/UI design, custom development, and post-launch optimization.
With deep platform knowledge, Diff supports brands undergoing a Shopify to Shopify Plus upgrade, helping them take advantage of advanced features like automation, internationalization, and improved checkout customization. The agency works closely with enterprise clients to align their eCommerce infrastructure with business goals.
Services and expertise: Shopify to Shopify Plus upgrades, custom theme and app development, UX/UI design, performance optimization, B2B and DTC eCommerce
Avex Designs is a New York-based eCommerce agency that works with fashion, beauty, lifestyle, and luxury brands to design and develop Shopify stores. The team focuses on combining creative design with performance-driven solutions, offering services that include UX/UI design, platform migration, custom development, CRO, and email marketing. With a strong emphasis on strategy and branding, Avex helps clients improve customer experience and drive revenue across digital channels.
As certified Shopify Plus partners, Avex supports high-growth brands with tailored solutions for the Plus platform. They handle complex builds and replatforming projects, helping clients take advantage of Shopify Plus features like automation, international storefronts, and advanced customization.
Services and expertise: Shopify Plus development, UX/UI design, custom apps, CRO, Klaviyo email marketing
Location: New York, NY
Team size: 20-50 employees
Portfolio: Arizona Beverages, Kit and Ace, Quip, Fila
We Make Websites is a global eCommerce agency specializing in the design, development, and optimization of Shopify Plus stores. The agency partners with high-growth and enterprise brands to deliver scalable, conversion-focused online experiences. Their team combines creative direction with technical precision, offering services that span strategy, UX/UI design, custom development, and performance enhancement.
Brands looking to scale can hire Shopify migration to Plus experts from We Make Websites to manage complex replatforming projects. The agency helps merchants move from platforms like Magento, Salesforce Commerce Cloud, and WooCommerce to Shopify Plus, ensuring smooth transitions while preserving performance and functionality.
Services and expertise: Shopify Plus migrations, UX/UI design, custom development, performance optimization, internationalization
Velstar is a UK-based eCommerce agency that helps brands build, grow, and optimize their online stores using Shopify and Shopify Plus. The agency offers services that cover strategy, UX/UI design, custom development, CRO, and performance marketing. Velstar works with DTC and B2B merchants across industries like fashion, health, home, and lifestyle, focusing on delivering measurable commercial results.
As one of the best Shopify Plus migration experts, Velstar supports brands transitioning from platforms such as Magento, WooCommerce, and BigCommerce. Their team manages the entire replatforming process, from data migration to frontend rebuilds, while aligning the solution with business goals.
Services and expertise: Shopify Plus migrations, eCommerce strategy, custom development, UX/UI design, CRO, performance marketing
Location: Liverpool, UK
Team size: 50-100 employees
Portfolio: Castore, French Connection, AVON, and Linda Farrow
Conclusion
Upgrading to Shopify Plus is a strategic move for growing brands, but getting there requires the right technical partner. The agencies featured in this list represent some of the best Shopify migration to Plus experts, each with a proven ability to handle complex replatforming, preserve performance and SEO, and tailor the Plus experience to business needs.
Whether you’re moving from another platform or upgrading within Shopify, these experts can help you unlock the advanced capabilities of Shopify Plus with minimal disruption and long-term scalability in mind.
If you’re a Shopify migration to Plus expert and want to feature your 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.
