Best E-Commerce Web Design Agencies For Growing Online Stores
Daria Pohrebniak
Marketing Director - Reverb
23.01.2026
Launching an online store is easier than ever. Growing it is not.
Design plays a major role in how customers find your brand, trust your store, and decide to buy. A slow, confusing, or outdated website can stop growth before it begins.
That’s why many founders turn to the best e-commerce web design agencies for startups. These teams help young businesses build stores that look credible, load fast, and scale as demand grows. They understand limited budgets, tight timelines, and the need to test ideas quickly.
In this guide, we’ve selected agencies that specialize in designing e-commerce websites for early-stage and growing brands. Each company offers experience with conversion-focused layouts, modern platforms, and flexible solutions built to support long-term growth.
Realm Web Design is a U.S.-based agency that focuses on Shopify development and store optimization. The team has more than ten years of experience working with the platform. Its work includes building new stores, redesigning existing ones, and improving site performance. The agency supports both standard Shopify and Shopify Plus projects and works with brands at different growth stages.
Realm Web Design works primarily with product-based businesses across retail e-commerce. Its portfolio includes brands such as Baetyl Jewelry, Freewaters, CoolSnowGlobes, Reeves, and HFWC. Projects range from full store builds to design updates and custom functionality. The company’s approach centers on practical improvements that support usability, performance, and long-term store maintenance.
Services and expertise: Shopify store setup, custom theme development, Shopify Plus development, app development, store migrations, SEO, marketing support, content writing
Location: Duluth, Minnesota, USA
Team size: 2-10 experts
Industries: Jewelry, food and beverage, apparel, beauty and skincare, B2B, consumer goods
Superside is a global design partner that operates on a subscription model. It is often listed among the best e-commerce web design companies for teams that need ongoing design support. The company provides scalable creative services that help businesses manage large volumes of digital work. Its model is built around fast delivery, consistent quality, and flexible access to design talent.
Superside works with enterprise brands and fast-growing companies across multiple markets. Its projects often support website design, UX and UI improvements, and visual updates tied to marketing campaigns. The team collaborates closely with in-house departments and adapts quickly to changing priorities. This structure makes it suitable for organizations that require continuous design output rather than one-time projects.
Services and expertise: E-commerce web design, UX/UI design, landing page design, brand design, motion graphics, illustration, digital marketing creative, video and content design
Location: Wilmington, Delaware, United States (headquarters); remote global team
Duck.Design is a subscription-based design agency that works with startups and growing businesses. It is often mentioned among the best e-commerce web design agencies for startups due to its flexible delivery model. The company provides ongoing design support without long-term contracts. Its services are structured to help teams manage design tasks quickly and at predictable costs.
The agency supports clients across different markets and handles projects of varying scope. These include website design, UI and UX work, and brand-related materials. Duck.Design focuses on fast turnaround and clear communication, which suits early-stage teams with changing priorities. Its workflow is built for continuous design needs rather than one-off engagements.
Thrive Internet Marketing Agency is a full-service digital firm that provides website design and online marketing services. It is often listed among the best e-commerce web designers for companies that want design and marketing handled together. The agency builds custom websites with a focus on usability, performance, and conversion goals. It has operated since 2005 and works with businesses of different sizes across the United States.
Thrive supports projects that combine web design with long-term digital strategy. Its team delivers responsive websites, e-commerce stores, and platform-specific solutions tailored to business needs. Design work is closely tied to SEO and marketing efforts, which helps companies align visual structure with traffic and lead generation goals.
Services and expertise: E-commerce web design, custom website design, WordPress development, SEO, PPC management, social media marketing, content marketing, conversion rate optimization
Location: Arlington, Texas, United States
Team size: 100-250 experts
Industries: E-commerce, B2B, B2C, professional services, local and national brands
Portfolio: Nationwide Construction, Ready Seal, PCI Group, and Sharp Innovations
Verndale is a digital experience agency that focuses on building and improving customer-facing platforms. Many companies hire e-commerce web designers for growing online stores through Verndale when they need both strategy and delivery support. The agency works on complex digital environments that connect design, technology, and data. Its projects often extend beyond basic storefronts and involve long-term platform development.
The team supports businesses that want to improve digital performance and customer engagement. Verndale delivers work across experience design, commerce platforms, and system integration. Its projects are typically tied to measurable business goals and ongoing optimization rather than one-time launches.
Services and expertise: Digital strategy, e-commerce implementation, experience design, website and mobile development, digital marketing, CRM and Salesforce solutions
Location: Boston, Massachusetts, United States, with offices in Los Angeles, Montreal, and Quito
Team size: 300+ experts
Industries: Retail, financial services, healthcare, higher education, manufacturing and distribution, sports and entertainment, technology
Portfolio: Southeast Toyota Finance, IEWC, Fortessa, GE Healthcare, CDMV, Quinnipiac University, MarineMax, Washington Nationals
Unified Infotech is a digital solutions company that works with businesses at different stages of growth. It is often included among the top e-commerce web design agencies for startups thanks to its focus on custom-built platforms. The team brings design and engineering together to create online stores and digital products shaped around real business needs. Its work usually goes beyond visual layout and includes performance, scalability, and system integration.
The team supports startups and established companies with end-to-end project delivery. Unified Infotech works on responsive websites, e-commerce platforms, and custom functionality built around real business requirements. Its approach emphasizes long-term usability and structured development rather than template-based solutions.
Services and expertise: Custom web design and development, e-commerce development (Shopify, WooCommerce, Magento), UX/UI design, mobile commerce, platform migration, B2B e-commerce solutions, optimization and security
Location: New York, United States, with delivery centers in India
Team size: 51-200 experts
Industries: Startups, small and mid-sized businesses, enterprise clients across multiple sectors
Portfolio: United Nations, Sotheby’s International Realty, CNBC TV18, Tata Housing, Edelweiss Financial Services
WebFX is a full-service digital marketing and web design agency with long-standing experience in online growth projects. It is often included among the best e-commerce web design companies due to its combined focus on design, technology, and performance. The agency builds custom e-commerce websites and responsive digital experiences that support visibility and conversion goals. Its work serves businesses ranging from small companies to large organizations.
The team approaches web design as part of a broader digital strategy. Projects typically connect site structure with SEO, analytics, and user behavior insights. WebFX emphasizes measurable outcomes and ongoing optimization rather than one-time launches.
Services and expertise: E-commerce web design and development, responsive website design, Magento and WooCommerce solutions, SEO, content marketing, conversion rate optimization, CMS development, analytics and tracking
Location: Harrisburg, Pennsylvania, United States, with additional offices across the U.S.
Team size: 500+ experts
Industries: E-commerce, retail, B2B services, manufacturing, hospitality, professional services
Portfolio: KOA Holiday, Cleveland Brothers, Thompson Tractor, All Pro Trailer Superstore, Shearer Landscaping
Major Tom is a full-service digital agency that provides strategy, design, development, and marketing services. It is often mentioned among the best e-commerce web designers for brands that want design aligned with business growth. The agency works across web, user experience, and digital strategy projects. Its focus is on building structured solutions tied to long-term goals rather than short-term campaigns.
The team supports companies across different industries and project sizes. Major Tom combines planning, creative work, and technical execution within one delivery model. Its projects often involve website design, e-commerce platforms, and digital performance optimization guided by data and audience insights.
Services and expertise: E-commerce strategy and development, web design, UX/UI design, digital strategy, SEO, paid media, content marketing, social media, custom web development
Location: Vancouver, British Columbia, Canada, with offices in New York and Toronto
Team size: 51-200 experts
Industries: E-commerce and retail, B2B, technology, professional services, hospitality, education
Portfolio: COBS Bread, Roller Rabbit, Layfield, Motion Picture Association of America
Groove Commerce is a digital agency that focuses on helping businesses grow their online sales. The company specializes in scalable e-commerce web design built to support long-term expansion. Its work combines design, development, and performance strategy to improve how online stores function and convert. Groove Commerce has worked with brands that need flexible platforms capable of handling increasing traffic and product volume.
The team delivers custom commerce solutions that connect site structure with business goals. Projects often include store builds, platform migrations, and ongoing optimization. Groove Commerce places strong emphasis on usability, data-driven decisions, and technical stability as stores grow.
Services and expertise: E-commerce web design and development, UX/UI design, front-end and back-end development, platform migration, SEO, analytics, performance optimization
Location: Baltimore, Maryland, United States
Team size: 11-50 experts
Industries: E-commerce retail, consumer products, manufacturing, B2B and DTC brands
Portfolio: Dippin’ Dots, The US Open Shop, Cutter & Buck, LA Police Gear, Collins Flags
Eastmont Digital is a digital commerce agency that works with brands focused on online growth. The team supports e-commerce businesses through store design, development, and optimization. Its projects often involve platform upgrades, redesigns, and performance improvements aimed at better customer experience and stronger conversion rates.
The agency works with both B2C and B2B companies and supports direct-to-consumer operations. Eastmont Digital combines technical development with user experience and retention-focused strategy. Its approach centers on practical execution and measurable results rather than one-time design updates.
Services and expertise: E-commerce design and development, UX/UI design, conversion rate optimization, platform migration, digital marketing, retention marketing
Choosing the right partner plays a major role in how an online store grows. Design affects trust, navigation, performance, and how easily customers complete a purchase. As business needs change, a flexible and experienced team becomes even more important.
If you plan to hire e-commerce web designers for growing online stores, focus on agencies that understand scalability, platform limitations, and real user behavior. The companies featured in this guide offer different strengths, from startup-friendly design models to enterprise-level development. By aligning your goals, budget, and growth stage with the right agency, you can build a store that supports long-term expansion rather than short-term fixes.
If you want to feature your E-Commerce Web Design Agency 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.
