Top Shopify Agencies For Clothing And Apparel Brands
Daria Pohrebniak
Marketing Director - Reverb
02.07.2026
Developing for clothing and apparel brands takes more than general Shopify knowledge.
Such stores should reflect the fashion brand’s style and have product pages with size-by-size availability, model height and worn size, fabric composition, and more.
Overall, building an apparel store means understanding how people actually shop for clothing online. The experience should match the journey from the first search to checkout: how shoppers discover brands, compare styles, choose a size, and decide whether to make a purchase.
That’s why we searched for companies that know the Shopify platform but also have real experience with the apparel industry, from launches and migrations to conversion, retention, and growth. And here’s the result of our research: the top Shopify agencies for clothing brands.
Realm provides Shopify development for clothing brands, covering web development and design, custom Shopify theme development, custom app development, store migration, and ongoing support. They have more than 14 years of experience building online stores that are made to work, sell, and grow. An official Shopify Partner since 2012, the company has supported both early-stage startups and Fortune 500 organizations. To date, Realm has completed more than 250 projects across different industries.
The team also assists with search engine optimization and logo branding, ensuring that the solutions they deliver are not only polished and high-performing but also easy for clients’ target audiences to find and remember. Clients often appreciate that Realm takes the time to understand the businesses behind a store, and they frequently mention the team’s excellent communication and problem-solving skills.
Services and expertise: Shopify web development, web design, custom theme development, store migration, SEO
Team size: Up to 49 experts
Location: Duluth, MN, US
Portfolio: SYLTBAR, zkano, Lash & Wax OC, and others
Avex is a New York City-based Shopify design agency for apparel that has already designed, built, and optimized Shopify Plus stores for names including KITH, O’Neill, Marchesa, Hugo Boss, Brandon Blackwood, and Kit and Ace. The company focuses on the demands of fashion retail, working with large product catalogs and creating mobile-friendly shopping journeys with intuitive navigation.
The team also assists brands with selling internationally by setting up tools such as Shopify Markets Pro and Global-E to manage duties, taxes, currencies, and languages for cross-border orders. In addition, Avex handles enterprise migrations to Shopify Plus. After a store goes live, the agency helps its clients improve sales and customer retention through SEO, conversion rate optimization, and retention marketing.
Services and expertise: Shopify UX design & development, Shopify Plus platform migration, international expansion, business integrations
Team size: Up to 49 experts
Location: New York, NY, US
Portfolio: KITH, Hugo Boss, Brandon Blackwood, and others
Swanky is a Shopify Plus agency for fashion brands founded in 2010, with offices in the UK, Australia, and France. The team builds and grows luxury fashion stores and has partnered with international companies such as loungewear retailer Olivia von Halle, occasionwear label Needle & Thread, and swimwear brand Bond-Eye. As an official Shopify Plus Partner, Swanky handles large and complex projects for both established enterprise brands and fast-growing fashion businesses.
The team offers migrations to Shopify Plus from other platforms, data-driven UX design, tech stack consultancy, website health audits, and development. After launch, they continue to work with clients through Swanky’s Growth Accelerator Program, which focuses on improving store performance and has generated millions in additional revenue for participating brands.
Services and expertise: Shopify website development, website design, integrations, internationalization, branding, conversion rate optimization, ecommerce digital marketing
Team size: Up to 249 experts
Location: Exeter, UK; Brisbane, Australia; Montpellier, France
Portfolio: Cefinn, Needle & Thread, Olivia von Halle, and others
WeCanFly is a Shopify-exclusive agency based in Wrocław, Poland, and part of the Netguru group. It’s a Shopify Premier Partner and a certified B Corp. Its team of more than 50 experts helps brands move to Shopify from platforms such as Magento, BigCommerce, WooCommerce, and Salesforce Commerce Cloud. So far, WeCanFly has completed more than 200 migrations, and most projects take around 8 to 16 weeks.
The agency has also built more than 30 Shopify stores for fashion brands. Its clients include The Odder Side, which moved to Shopify Plus, and God Save Queens, a lingerie and swimwear brand that recorded a 50% increase in sales after migrating and adding custom features such as a size calculator.
Services and expertise: Shopify Plus development, theme development, speed optimization, headless ecommerce, UX/UI design, store migration, SEO
Team size: Up to 249 experts
Location: Wrocław, Poland
Portfolio: Coco de Mer, God Save Queens, The Odder Side, and others
Cake Agency is a UK-based ecommerce agency and Shopify Partner. It’s also a partner of Google, Meta, and TikTok Shop, which allows the team to provide both store development and digital marketing. Its services include Shopify development, ecommerce marketing across Meta, Google, TikTok, Snapchat, and Pinterest, branding and design, custom app development, and ongoing support.
The agency has worked with several fashion and lifestyle brands, including P&Co, a lifestyle clothing brand Cake Agency has supported since 2019; &Sons, a workwear label they migrated from Magento to Shopify; and High Dive Apparel, a street-lifestyle brand. Cake Agency’s work has led to measurable results for clients. One brand saw a 31% increase in conversion rate after moving from Squarespace to Shopify, while another recorded a 22% increase in website sessions and a 150% increase in revenue.
Services and expertise: Shopify website development, brand strategy, UX/UI design, performance marketing, SEO
Team size: Up to 49 experts
Location: Birmingham, UK
Portfolio: High Dive Apparel, Bad Monday, GymPro Apparel, and others
Thails is a Shopify Plus agency and certified Shopify Expert team that develops and improves ecommerce websites for fashion brands. The team is based in Amsterdam and New York, and they work with clients worldwide and bring more than seven years of Shopify development experience. Overall, Thails has completed over 500 projects.
The company has cooperated with fashion brands such as Deeply, a surf fashion label, Empress, a luxury swimwear brand, and Gooseberry Intimates, a lingerie brand. The agency’s services include Shopify development, migrations to Shopify, UX growth audits, conversion rate optimization, and ongoing support and maintenance. Thails also assists with global expansion and loyalty and retention and creates custom landing pages for collection launches and paid social campaigns.
Services and expertise: Shopify store development, custom development, migration, UX audit, AI automation, conversion rate optimization
Team size: Up to 9 experts
Location: Amsterdam, Netherlands; New York, NY, US
Portfolio: Empress, Gooseberry Intimates, Deeply, and others
Blubolt is a Shopify ecommerce agency that serves “brands that refuse to compromise on either form or function”. It was established in 2006 and has already worked on over 400 ecommerce projects. The blubolt team consists of 100% certified Shopify Plus partners.
The company’s fashion portfolio includes Bella Freud, Lazy Oaf, Jasmine Silk, Raging Bull, Derek Rose, Johnstons of Elgin, and Never Fully Dressed. Bella Freud migrated from Magento to Shopify Plus, and the result was 13% more new users, a 10% lower bounce rate, and a 20% lift in conversions. To build quickly, Blubolt relies on Volt, its own accelerator framework based on component libraries.
Eastside Co supports Shopify store design for clothing brands, along with store builds, redesigns, migrations, theme customization, and conversion rate optimization. They were established in 2012 and are based in London, New York, and Dubai. The agency has a team of more than 70 designers, developers, marketers, and project managers.
Eastside Co works with apparel brands from startups through to enterprise businesses. Along with the core Shopify development services, the team also provides marketing services once a store is live. They have specialists across SEO, PPC, social media management, email marketing, and other marketing channels.
Services and expertise: Shopify web design, web development, migration, app development, discovery & audit, SEO, PPC
Team size: Up to 49 experts
Location: London, UK; New York, NY, US; Dubai, UAE
Portfolio: TrendyGolf, Raging Bull, Mimi & Lula, and others
Charle positions itself as a search-first Shopify Agency, which means it builds Shopify stores based on how customers discover products today. The team combines SEO, AI visibility optimization, Shopify development, conversion rate optimization, and testing so the store is easier to find across search, AI tools, and other shopping channels. Charle can already boast 31% average organic traffic increase, 44% average conversion uplift, and 29% average increase in customer lifetime value.
The agency has worked with clothing and apparel brands such as Billionaire Boys Club, a streetwear label; The Cambridge Satchel Company, known for satchels and other leather goods; and Joel & Son, a supplier of fabrics, ribbons, lace, and accessories for custom clothing. Its services are grouped around the main stages of ecommerce growth: Search, which covers SEO and GEO; Launch, which includes migrations, development, and integrations; and Retain, which focuses on email and SMS marketing.
Services and expertise: Shopify store development, migration, integration, support & maintenance, internationalization, SEO, GEO, email & SMS marketing
Team size: Up to 49 experts
Location: London, UK
Portfolio: Billionaire Boys Club, The Cambridge Satchel Company, Joel & Son, and others
BlueSwitch is a Shopify Platinum Partner agency that serves D2C and B2B organizations. It has worked in ecommerce for more than two decades and offers services such as Shopify Plus development, design, migrations, integrations, and marketing. BlueSwitch has also built its own Unified Commerce Suite, a set of modular solutions that extend Shopify functionality across onboarding, ordering, checkout, and inventory, based on its real-world client implementations.
The company is proud to have a 100% in-house team of Shopify experts for apparel ecommerce and other sectors. It has partnered with well-known brands such as Panasonic and L’Oréal, and when it comes to apparel and fashion, its clients include Perry Ellis, one of the most recognized American clothing and lifestyle brands; British lifestyle label Ted Baker; swim brand TYR; and New York footwear maker To Boot New York.
Services and expertise: Shopify development & UX design, migration & replatforming, integrations, site optimization, B2B design & development, B2B ERP solutions
Team size: Up to 49 experts
Location: New York, NY, US
Portfolio: Perry Ellis, Ted Baker, To Boot New York, and others
Conclusion
What connects the best Shopify agencies for fashion on this list is their attention to the day-to-day details that matter to clothing brands. To get started with your own Shopify development project, look at the projects each company has already delivered, and see whose stores feel closest to the direction you want for your own.
If you want to feature your top Shopify agency for clothing and apparel brands 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.
