Top E-commerce Agencies and Service Providers in 2026
Compare e-commerce agencies and specialist service providers using structured company profiles, platform expertise, industry experience, commercial details, case studies and approved client reviews.
Domaine is a global Shopify agency formed from the merger of Tomorrow and Half Helix and later expanded through acquisitions. It provides strategy, creative, technology and marketing for large-scale Shopify migrations, unified commerce, enterprise storefronts, optimization and international growth.
Services
API DevelopmentCustom Ecommerce DevelopmentData MigrationEcommerce Consulting and Strategy
Uncap is a Shopify Platinum Partner focused on B2B, manufacturing, distribution and unified commerce. The company works with ecommerce brands that need complex B2B catalogs, ERP-connected commerce and enterprise Shopify migration, with official project material showing hands-on delivery rather than...
Sleepless Media is a Santa Cruz-founded branding and ecommerce agency working with Shopify Plus merchants and growth-stage brands. It combines brand strategy, UI and UX design, custom development, conversion optimization and post-launch growth support, with a focus on consumer products,...
Avex is a New York ecommerce agency that helps established brands modernize technology and improve customer experience. Its Shopify services span strategy, UX and UI, engineering, migration, system integration, conversion optimization, analytics, retention, loyalty and international expansion.
Services
Analytics and TrackingAPI DevelopmentConversion Rate OptimizationCustom Ecommerce Development
Barrel is a New York ecommerce and brand agency specializing in consumer packaged goods. Its Shopify work covers strategy, UX, design, development, new builds, redesigns, migration, conversion optimization, retention marketing and ongoing support for growing brands.
Services
Conversion Rate OptimizationCustom Ecommerce DevelopmentEcommerce Consulting and StrategyEcommerce UX/UI Design
Vervaunt is a London ecommerce consultancy and agency working with established retail and direct-to-consumer brands. Its capabilities include ecommerce strategy, Shopify Plus and Magento delivery, platform migration, UX, development, paid media, analytics and ongoing optimization.
Services
Analytics and TrackingConversion Rate OptimizationCustom Ecommerce DevelopmentEcommerce Consulting and Strategy
Whole Design Studios is an ecommerce agency or consultancy based in London, United Kingdom. It focuses on Shopify marketing, conversion optimization, email, paid social and growth support for fashion and luxury brands. Its active public website and service positioning were...
Services
Analytics and TrackingConversion Rate OptimizationEcommerce Consulting and StrategyEcommerce Marketing Strategy
Blue Horizons is a UK Shopify agency and marketing partner serving growing consumer businesses. The company works with ecommerce brands that need smaller merchants that need practical Shopify migration, setup and ongoing ecommerce support, with official project material showing hands-on...
Kubix is a UK Shopify agency combining development, omnichannel retail, migration and growth marketing. The company works with ecommerce brands that need retailers that need Shopify to connect ecommerce, stores, fulfillment and retention, with official project material showing hands-on delivery...
Services
Analytics and TrackingConversion Rate OptimizationCustom Ecommerce DevelopmentEcommerce Consulting and Strategy
Liquify is a Shopify-focused ecommerce design and development agency with experience across Shopify and Shopify Plus. The agency has worked within the Shopify ecosystem since 2014 and focuses on custom storefront design, theme development, migrations and complex commerce functionality. Its...
Services
Custom Ecommerce DevelopmentEcommerce BrandingEcommerce UX/UI DesignMaintenance and Support
Unified is a UK ecommerce agency delivering Shopify, Magento and multichannel digital commerce programs. The company works with ecommerce brands that need retailers that need replatforming, B2B workflows and design-led digital transformation, with official project material showing hands-on delivery rather...
Services
Analytics and TrackingAPI DevelopmentB2B Ecommerce DevelopmentConversion Rate Optimization
Fostr is an ecommerce agency or consultancy based in Newcastle upon Tyne, United Kingdom. It focuses on Shopify Plus strategy, design and technology for luxury, fashion, beauty and wellness brands. Its active public website and service positioning were reviewed for...
Services
Analytics and TrackingConversion Rate OptimizationCustom Ecommerce DevelopmentEcommerce Consulting and Strategy
wecanfly is a Shopify Plus agency with migration, B2B and custom development expertise for European brands. The company works with ecommerce brands that need complex platform moves, international stores and wholesale functionality on Shopify, with official project material showing hands-on...
Services
Analytics and TrackingAPI DevelopmentB2B Ecommerce DevelopmentConversion Rate Optimization
G & Co. is a retail and ecommerce consulting agency focused on strategy, customer experience, digital product and design. The firm works with established consumer brands where the ecommerce challenge is often broader than selecting or implementing a platform, encompassing...
Services
Analytics and TrackingAPI DevelopmentConversion Rate OptimizationCustom Ecommerce Development
Cake Agency is a UK ecommerce agency combining Shopify development, branding, consultancy and performance growth. The company works with ecommerce brands that need consumer brands that need a Shopify build connected to conversion, merchandising and brand strategy, with official project...
Services
Conversion Rate OptimizationCustom Ecommerce DevelopmentEcommerce BrandingEcommerce Consulting and Strategy
