Top Shopify & Shopify Plus Agencies in US to Watch in 2025

Introduction

As eCommerce continues to reshape how America shops and sells, businesses across industries (from retail to manufacturing) are racing to establish powerful digital storefronts. Shopify and Shopify Plus have emerged as the go-to platforms for these ambitions, offering unmatched scalability, intuitive design, and a suite of tools tailored for online success. However, building a store that truly captures attention, converts customers, and grows with the business requires more than just a template. That is where top Shopify & Shopify Plus agencies in the US come in. These agencies bring technical expertise, marketing strategies, and creative execution under one roof.

Whether you are a startup preparing to launch or an enterprise brand in need of advanced customization, finding the right Shopify agency can define your business growth journey. After reviewing dozens of service partners across the country, we present the top 14 Shopify and Shopify Plus agencies in the US that are transforming online commerce.

Top Shopify & Shopify Plus agencies in US

Choosing a Shopify or Shopify Plus agency is a pivotal business decision. It is not just about building a beautiful site, but about aligning your digital presence with your operations, customer experience, and revenue goals. The following 14 Shopify Plus agencies in the US have been carefully selected for their technical expertise, proven track record, and success stories. Each agency offers a unique mix of services designed to enable sustainable growth and ecommerce success. Here is a closer look at the agencies helping brands unify online strategy, marketing, and development to stay ahead of the curve.

1. Shero Commerce

Shero Commerce is a full-service agency partner specializing in high-performance Shopify Plus stores tailored to complex B2B and DTC needs. Based in the US, Shero has been delivering Shopify development since 2010, with a reputation for custom solutions and scalable infrastructure.

• End-to-end Shopify Plus store setup and replatforming from Magento or WooCommerce.

• Performance optimization, conversion rate optimization, and SEO audits.

• Shopify Flow automation, headless commerce, and custom Shopify app development.

• Post-launch support, ongoing optimization, and international storefront expansion.

Shero Commerce has partnered with iconic names such as the Guggenheim Museum, Vienna Beef, and Regal Cinemas. They are best suited for mid-market and enterprise brands seeking a trusted Shopify Plus agency with a deep understanding of migration, marketing services, and long-term support.

2. Barrelny.com

Barrel is a top Shopify Plus agency rooted in New York that blends creative design with digital strategy to deliver seamless Shopify stores. With a strong emphasis on DTC brands, Barrel delivers ecommerce websites that prioritize conversion and customer experience.

• Shopify Plus migrations, store setup, and custom checkout flows.

• Strategic branding, Shopify design, and UI/UX development.

• Email marketing, SEO services, and digital marketing campaigns.

• Dedicated support and performance optimization post-launch.

With clients like Stanley Black & Decker and Rowing Blazers, Barrel is ideal for design-forward brands aiming to unify online aesthetics with functionality. Their work often involves complex Shopify scripts and system integrations tailored for revenue growth.

3. Lounge Lizard

Lounge Lizard is one of the most creative design-first Shopify Plus agencies in the US. Established in 1998, the agency combines branding and conversion-focused design with Shopify Plus development expertise.

• Custom Shopify theme customization and advanced UI/UX design.

• Shopify app development and API integrations.

• CRO-focused development and SEO-driven Shopify stores.

• Full-funnel digital marketing and brand strategy.

Brands like Dylan’s Candy Bar and ESPN trust Lounge Lizard for their strong creative design foundation and ecommerce development. They are best suited for businesses looking to elevate customer experience through storytelling and future-proof design.

4. Endertech

Endertech is a Shopify Plus agency based in Los Angeles that brings a balance of technology and strategy to high-growth ecommerce businesses. Their technical expertise lies in building scalable and integrated solutions.

• Enterprise resource planning (ERP) integration and Shopify scripts for automation.

• Shopify Plus migrations, custom checkout flows, and store setup.

• Conversion rate optimization, speed tuning, and headless commerce.

• B2B functionality including custom pricing and workflows.

Endertech has worked with institutions like California State University and Natural Curiosities. Ideal for operationally complex ecommerce businesses, they are a strong partner for companies needing seamless integration between Shopify and other systems.

5. MTN Haus

MTN Haus is a digital commerce partner and Shopify Plus agency focused on combining data, design, and development for high-growth brands. Their roots lie in building scalable DTC and B2B commerce experiences.

• Shopify Plus store development with multi-system integrations.

• Conversion-driven design, CRO strategies, and Shopify Flow automation.

• Global ecommerce strategies, localization, and theme customization.

• Technical expertise in API development and omnichannel syncing.

Brands like STX and Benchmade Knives trust MTN Haus. They are ideal for ambitious brands in need of robust backend infrastructure, design thinking, and post-launch optimization support.

6. Propeller.co.uk

With offices in NYC and London, Propeller is a global digital agency and certified Shopify Plus partner. They focus on building Shopify brands that lead with UX innovation and marketing effectiveness.

• Shopify Plus strategy, design, and Shopify app development.

• SEO, email marketing, and social media marketing for online sales.

• Headless commerce architecture and omnichannel integrations.

• Content management and creative services for ecommerce websites.

Working with brands like Twinings and Azzuri Group, Propeller brings global sensibilities to localized growth. A perfect fit for hospitality, food, and retail brands seeking a full-service agency.

7. Ambaum

Ambaum, based in Seattle, is a highly specialized Shopify Plus agency focused on technical development, integrations, and performance enhancement for Shopify stores.

• Custom Shopify scripts and backend architecture.

• Advanced customization and Shopify 2.0 store upgrades.

• App integrations, ERP connections, and data migration.

• Fractional CTO services and long-term technical support.

Brands like Bulletproof and Inside Weather rely on Ambaum for engineering-heavy projects. Their approach is ideal for ecommerce businesses needing system integrators and deep technical partnership.

8. Uncap

Uncap is a Chicago-based agency partner specializing in Shopify Plus ecommerce development for B2B brands and hybrid commerce models.

• B2B portal development and private Shopify Plus storefronts.

• Custom checkout logic and tailored solutions.

• Shopify Flow and automation of back-office processes.

• Advanced integrations including ERP and warehouse systems.

Uncap has supported companies like Pawstruck and Sanitaire. Their niche lies in helping manufacturers and distributors scale digitally with precision workflows and Shopify Plus architecture.

9. Zaelab

Zaelab is a digitally native Shopify Plus agency focused on commerce innovation for B2B and mid-market clients. Their approach is deeply rooted in performance and automation.

• Shopify Plus migration, store setup, and ERP integrations.

• Workflow automation via Shopify Flow and custom apps.

• CRO-led design and ongoing support packages.

• Customer data management and headless commerce deployment.

Zaelab is trusted by enterprise brands looking for a digital strategy partner. Best for B2B sellers looking for tailored solutions and comprehensive solutions that unify operations with ecommerce.

10. Plug Digital

Plug Digital is a full-service development agency focused on Shopify Plus ecommerce experiences that prioritize scalability, speed, and UX design.

• Custom app development, Shopify Flow implementation, and performance optimization.

• Store migrations, SEO tuning, and Shopify design enhancements.

• System integration with CRM, ERP, and inventory management tools.

• Ongoing support, testing, and A/B optimization.

Plug Digital has served brands like Vanguard and Uberscuuter. Ideal for fast-scaling ecommerce businesses that need advanced features without compromising agility.

11. Sleepless Media

Sleepless Media is a California-based agency specializing in lifestyle and adventure brands on Shopify Plus. Their strength lies in branding, UX design, and scalable architecture.

• Shopify Plus design and theme customization.

• Digital branding and visual strategy.

• SEO, email marketing, and performance tuning.

• Migration support and accessibility optimization.

Trusted by Levi Strauss and August, Sleepless Media excels with high-growth brands in need of a visual overhaul and long-term revenue growth planning.

12. Fyresite

Fyresite is a design-first Shopify Plus agency blending technical precision with UX storytelling. They handle everything in-house, from custom development to app integrations.

• Shopify Plus store setup, custom app development, and migration.

• Headless commerce deployments and frontend optimization.

• Branding, blockchain integrations, and mobile-first development.

• Post-launch support and CRO planning.

With clients like Modern Flames and Green Mountain Grills, Fyresite is a trusted partner for innovative brands looking to future-proof their ecommerce presence.

13. Netalico Commerce

Netalico is a boutique Shopify agency with a heavy emphasis on speed, CRO, and accessibility. Their development process is tailored, collaborative, and laser-focused on ecommerce success.

• Shopify Plus development with CRO and performance optimization.

• Shopify app development and third-party integrations.

• Email marketing and customer experience strategy.

• Accessibility audits and brand-aligned UI/UX design.

Netalico works with brands like Oatly and Crossrope. A great fit for brands looking to enhance conversion, performance, and long-term engagement.

14. Swanky Agency

Swanky is a globally recognized Shopify Plus agency with a deep focus on data-driven ecommerce transformation. Their services are tailored for brands scaling internationally and building sophisticated online operations.

• Shopify Plus subscription strategy and headless commerce builds.

• A/B testing, funnel strategy, and advanced customization.

• Full-funnel marketing strategies and digital transformation.

• Multi-region Shopify Plus store architecture.

Known for success stories across industries, Swanky is a top Shopify agency for ambitious, scaling brands aiming to leverage every facet of the Shopify Plus ecosystem.

How to choose the best Shopify agency for your business?

Finding the right Shopify agency is more than comparing price tags. It is about aligning your brand’s vision, challenges, and scale with an agency’s capabilities and culture. Consider these strategic pointers before choosing your ecommerce development agency:

• Industry Expertise: Choose a Shopify partner with experience in your industry. Familiarity with customer behavior, product complexity, and market trends can shorten development timelines and boost impact.

• Post-Launch Support: Seek agencies that offer post-launch support, ongoing optimization, and performance monitoring. Shopify stores are living ecosystems that require continuous attention.

• Customization Capability: Your agency should be able to handle Shopify app development, Shopify scripts, and ERP integration with ease. Avoid one-size-fits-all setups.

• Marketing Integration: A top Shopify agency aligns development with marketing services like CRO, email automation, and SEO.

• Scalability Planning: Shopify Plus is built for scale. Your agency should demonstrate how they future-proof your store for growth.

• Client Feedback: Check reviews, success stories, and partner tiers to validate credibility. Proven track record often speaks louder than flashy portfolios.

Conclusion: Partnering for the long run

In today’s digital-first economy, your Shopify or Shopify Plus store is not just a storefront, but your operational engine, your brand voice, and your growth driver. The best Shopify agencies understand this dynamic and design with the long game in mind. You can also integrate your logistics operations with your Shopify store using ClickPost. Whether you need advanced customization, seamless integration, or ongoing support, the agency you choose should align with your business goals and elevate your vision. As Shopify continues to innovate, your success hinges on the partners who can adapt, strategize, and deliver every step of the way.