Top 12 Shopify Plus Development Agencies List in USA 2026
In 2026, most Shopify Plus stores don’t fail because of bad products or weak marketing. They fail quietly, because the store itself can’t keep up with the business, often due to poor architecture and decisions made during the initial Shopify Plus development.
Too often, enterprise brands invest in Shopify plus development agencies only to end up with stores that feel like upgraded theme builds, slow load times, fragile customizations, limited checkout flexibility, and technical debt that compounds with every update. These problems are especially common when conversion rate optimization are treated as afterthoughts instead of core requirements.
The reality is simple: a high-performing Shopify Plus store is engineered, not assembled. It requires deep platform expertise, custom development, performance optimization, and a clear long-term growth strategy. The best Shopify Plus agencies don’t just “build stores.” They design scalable systems, handle complex integrations, optimize for conversion at scale, and future-proof the entire commerce stack.
That’s why choosing the right Shopify Plus development agency in 2026 matters more than ever.
This guide highlights the Top 12 Shopify Plus Development Agencies in the USA for 2026, teams with proven enterprise experience, technical depth, and a track record of delivering measurable results for high-growth brands.
Among them, Ecomx Agency stands out for its strategic, performance-first approach to Shopify Plus development. Ecomx specializes in building custom, conversion-focused, and scalable Shopify Plus solutions for brands that are serious about growth, not shortcuts.
If you’re planning a Shopify Plus build or re-platform and want a partner that thinks beyond launch day, contact Ecomx Agency to discuss how we can help you build a store designed to scale in 2026 and beyond.
How to choose a Shopify agency?
Choosing a Shopify Plus development agency in 2026 goes far beyond design. The right partner should build a store that’s fast, scalable, and engineered for long-term growth, not just launch day.
You need to look for agencies with proven Shopify Plus case studies, especially projects involving custom builds, high traffic, B2B functionality, or complex integrations. Real-world results and long-term client relationships matter more than visuals alone.
An important thing to note is that a strong Shopify Plus agency specializes in the Shopify platform, not general web development services. They understand everything about Shopify optimization from development to growth.
Conversion-focused UX is also critical. The best agencies design with CRO and performance in mind from day one, ensuring fast load times, intuitive navigation, and higher revenue at scale.
And finally, prioritize clear communication and structured project management. A reliable Shopify Plus partner plans beyond launch, supports growth, and evolves your store as your business expands.
Top Shopify Plus Development Agencies 2026
1. Ecomx Agency
Rating: 4.9/5
Ecomx Agency has established itself as one of the leading Shopify Plus development agencies in the USA, having launched over 250 Shopify stores and earned 150+ five-star reviews. Their team specializes in Shopify custom themes development, store migrations, conversion rate optimization, app integrations, and Shopify seo backed by award-winning design and growth strategies. Their approach combines deep Shopify expertise with a focus on scalable solutions, ensuring every store is built to drive revenue and long-term growth.
What makes them stand out: A singular focus on Shopify Plus. Ecomx Agency isn’t a generalist, they live and breathe Shopify, providing end-to-end solutions that include design, development, optimization, and ongoing support. Every project is crafted to enhance user experience, boost sales, and scale with your brand.
Industries or clients they serve: Ecomx Agency collaborates with brands across various sectors, including fashion, beauty, electronics, home decor, food, and wellness. From startups to established enterprises, their clients include high-growth brands that need performance-driven Shopify Plus solutions. Some notable clients are Alo Yoga, Tentree, Kith, and Pangaia.
You can explore Ecomx Agency’s Shopify Plus development case studies for Tentree and Cowboy to see how they build fast, scalable, and conversion-focused stores.
2. Swanky Agency
Rating: 4.6/5
Swanky is a full-service Shopify Plus agency operating across the UK, Australia, and France. With over 15 years of ecommerce experience, the team helps international brands replatform to Shopify Plus and scale through long-term, commercially driven support. Their expertise spans complex Shopify Plus builds, global ecommerce strategy, and ongoing growth optimisation for ambitious brands.
What makes them stand out: A deep focus on crafting compelling digital experiences designed to scale globally. As a Shopify Platinum Partner, Swanky blends strategic thinking, technical excellence, and award-winning CRO and marketing capabilities to deliver measurable growth.
Industries or clients they serve: Swanky works with international and enterprise-level ecommerce brands across retail, DTC subscription businesses, and multi-market merchants, partnering with fast-growing and established brands that value innovation, performance, and long-term scalability.
3. DigitalSuits
Rating: 4.8/5
DigitalSuits is a growth-focused ecommerce and AI development agency with over 9 years of experience delivering full-cycle digital solutions. With strong operations serving the U.S. market, the agency specializes in Shopify and Shopify Plus development, helping brands build, migrate, and scale high-performance ecommerce stores. Their work combines deep technical execution with AI-driven innovation to support long-term business growth.
What makes them stand out: A unique blend of Shopify Plus expertise and advanced AI development under one roof. DigitalSuits focuses on measurable outcomes—improving site performance, increasing conversion rates, and driving revenue growth—while maintaining transparency, high coding standards, and dedicated long-term support.
Industries or clients they serve: DigitalSuits partners with growth-driven DTC and ecommerce brands in the USA and globally, including Shopify Plus merchants in fashion, beauty, home goods, and consumer products. Brands like KOIO, Pattern Brands, Wicked Cushions, and Yepoda have trusted DigitalSuits to optimize and scale their Shopify Plus ecosystems.
4. Superco
Rating: 4.3/5
Superco is a Shopify Plus Premier Partner specialising in customer experience-led ecommerce for high-growth brands. The agency focuses on designing and building custom Shopify Plus stores that prioritise usability, performance, and long-term brand value. With a refined, expert-led process, Superco helps ambitious brands transition, optimise, and scale on Shopify Plus.
What makes them stand out:
A strong emphasis on customer experience strategy combined with high-end Shopify Plus design and development. Superco’s “content-first” and experience-driven approach ensures every Shopify Plus build is not just visually compelling, but strategically aligned to drive retention, lifetime value, and sustainable growth.
Industries or clients they serve:
Superco works with premium DTC and retail brands, including wellness, fashion, beauty, and lifestyle companies. Their Shopify Plus portfolio includes well-known brands such as Allbirds, Ursa Major, Puresport, Tileflair, and Myomaster, supporting growth-focused merchants operating at scale.
5. Uncap Agency
Rating: 4.7/5
Uncap is a Chicago-based Shopify Platinum Partner with over 12 years of Shopify expertise, trusted by 350+ brands. The agency specializes in Shopify Plus and B2B ecommerce development, helping manufacturers, distributors, and hybrid brands unify B2B, B2C, and retail commerce on a single Shopify Plus platform. Their approach focuses on simplifying complexity, lowering total cost of ownership, and delivering measurable growth.
What makes them stand out: Radical transparency and deep Shopify Plus B2B architecture expertise. Uncap is known for cutting through technical noise to design scalable, data-driven Shopify Plus solutions.
Industries or clients they serve: Uncap works extensively with U.S.-based manufacturers, distributors, and enterprise brands across industrial equipment, tools, parts, and consumer goods. Clients include ULE Group, Canon, Vermont Woods Studios, Shirley’s Popcorn, Kalorik, and other high-SKU Shopify Plus merchants operating at scale.
6. Shero Commerce
Rating: 4.6/5
Shero Commerce is a Shopify Premier Partner specializing in complex B2B and B2C ecommerce builds for growth-focused brands. With more than a decade of experience, the agency helps U.S.-based and international companies migrate to, optimize, and scale on Shopify Plus, removing technical debt, improving performance, and increasing conversions through clean architecture and data-driven development.
What makes them stand out: A strong emphasis on performance, stability, and long-term scalability. Shero Commerce is known for fixing inherited Shopify issues such as bloated themes and inefficient custom code, rebuilding Shopify Plus stores that support both DTC and B2B growth without unnecessary complexity. Their approach combines Shopify Plus development with CRO, SEO, and digital marketing for measurable business impact.
Industries or clients they serve:
Shero Commerce works with mid-market and enterprise brands across B2B ecommerce, manufacturing, fashion, food & beverage, beauty, and health & wellness. Their Shopify Plus portfolio includes brands like Benchmade, STX, Regal, Alto Music, Vienna Beef, and Justrite.
7. Ambaum
Rating: 4.5/5
Ambaum is a U.S.-based Shopify Plus Partner agency built by former merchants, focused on helping complex, high-growth brands scale on Shopify. Since 2016, they’ve worked with hundreds of Shopify and Shopify Plus merchants, combining real-world ecommerce experience with senior-level technical execution to build, optimize, and future-proof businesses, not just launch stores.
What makes them stand out: A true merchant-first approach delivered through a Fractional CTO model. Ambaum goes beyond development by acting as a strategic technical partner, prioritizing scalability, performance, and long-term growth while minimizing development debt. Their strength lies in solving complex Shopify Plus challenges for B2B, wholesale, and high-SKU brands that have outgrown traditional agency support.
Industries or clients they serve: Ambaum works primarily with U.S.-based Shopify Plus brands in automotive & parts, manufacturing, B2B & wholesale, retail & home goods, and food & beverage. Their clients include well-known brands such as Munchkin, Westinghouse, RAM Mounts, Dewey Crush, DmaxStore, and Curio Home Goods—many operating highly complex Shopify Plus ecosystems.
8. Lounge Lizard
Rating: 4.8/5
Lounge Lizard is a U.S.-based digital agency with decades of experience delivering custom ecommerce solutions for enterprise and high-growth brands. As part of their Shopify development services, their team designs and builds custom Shopify and Shopify Plus stores with a strong emphasis on UX, performance, scalability, and brand storytelling. Their work spans complex integrations, custom APIs, and responsive, conversion-focused storefronts.
What makes them stand out: A rare blend of enterprise-level design thinking and deep technical execution. Lounge Lizard combines Shopify Plus development with integrated SEO, marketing, and analytics, making them well-suited for brands that want more than just a build, they want measurable growth. Their long-standing reputation, extensive U.S. presence, and process-driven approach make them a reliable partner for large-scale Shopify Plus projects.
Industries or clients they serve: Lounge Lizard works with complex B2B and B2C brands across retail, manufacturing, wellness, luxury, and consumer goods. Notable clients include Dylan’s Candy Bar, GENLED Brands, LOOP-LOC, MIND GAMES Fragrance, Whelen Engineering, and Underlined by Penguin Random House, many of which require enterprise-grade Shopify Plus solutions in the U.S. market.
9. Avex Agency
Rating: 4.4/5
Avex is a U.S.-based Shopify Plus agency trusted by enterprise and high-growth brands to unify DTC, B2B, and in-store commerce into one scalable ecosystem. With over a decade of Shopify Plus experience, Avex delivers strategy-led builds, replatforming, and optimization designed to convert, retain, and scale without compromising performance or brand integrity.
What makes them stand out: A true unified commerce approach that blends strategy, UX, engineering, CRO, and retention under one roof. Avex doesn’t just migrate brands to Shopify Plus, they modernize entire commerce systems, focusing on long-term scalability, lifecycle growth, and measurable ROI. Their strength lies in combining deep technical execution with data-driven experimentation and retention-first thinking.
Industries or clients they serve: Avex works with complex B2C, B2B, and omnichannel brands across fashion, CPG, wellness, fitness, and lifestyle. Notable Shopify Plus clients include AriZona Beverages, FILA, Equinox, KHAITE, O’Neill, quip, Bonafide Health, and The J. Peterman Company, making them a strong choice for enterprise Shopify Plus projects in the U.S. market.
10. Wildnet Edge
Rating: 4.2
Wildnet Edge is a full-service Shopify development company helping brands build, modernize, and scale high-performing eCommerce stores. With nearly two decades of digital engineering experience behind them, their team delivers custom Shopify solutions designed for performance, scalability, and long-term growth—serving businesses across the U.S., Canada, and global markets.
What makes them stand out: Wildnet Edge combines deep Shopify expertise with enterprise-grade engineering and cloud-native development. From custom Shopify builds and migrations to private app development, CRO, and technical SEO, they focus on creating conversion-ready stores backed by clean architecture and scalable infrastructure. Their strength lies in handling complex requirements while maintaining speed, security, and flexibility.
Industries or clients they serve: Wildnet Edge works with brands across retail, fashion, health & beauty, electronics, food & beverage, and home goods. With experience supporting businesses of all sizes—from fast-growing startups to large enterprises—their Shopify services are well-suited for companies looking for a technically strong, globally experienced Shopify development partner.
11. Teplin Agency
Rating: 4.3
Teplin is a Shopify-focused design and development agency offering a full senior team on a simple monthly retainer. Built for fast-growing and Shopify Plus brands, Teplin handles everything from UX/UI and custom theme development to CRO, integrations, and ongoing optimization.
What makes them stand out: Teplin’s retainer-first model is designed for speed, consistency, and accountability. Brands get on-demand access to designers, developers, CRO specialists, and a dedicated project manager, with most non-urgent requests delivered within 48 hours. Their approach prioritizes conversion-focused design, clean code, and continuous improvement rather than one-off redesigns.
Industries or clients they serve: Teplin works with DTC and Shopify Plus brands across fashion, beauty, wellness, food & beverage, fitness, and consumer products. Their portfolio includes brands like Kinder Beauty, Nordik, Flying Embers, Ovrload, Bonz, Urth, and Beatbox making them a strong fit for brands that want ongoing Shopify growth support instead of traditional agency engagements.
12. Fyresite
Rating: 4.2
Fyresite is a full-service Shopify Plus agency and digital partner with 15+ years of experience designing, developing, and optimizing websites, apps, and eCommerce solutions. Headquartered in Tempe, Arizona, they blend creative design with technical excellence to deliver custom Shopify Plus experiences that drive growth, improve performance, and maximize ROI.
What makes them stand out: Fyresite focuses on end-to-end eCommerce solutions—from discovery and strategy to UI/UX design, web and app development, and AWS-powered infrastructure. Their approach emphasizes collaboration, problem-solving, and scalable solutions. Known for reducing load times, improving conversions, and streamlining operations, they bring both creativity and technical rigor to every project.
Industries or clients they serve: Fyresite works with Shopify Plus brands across automotive, fashion, home goods, food & beverage, and toys & games. Key clients include Corbeau, Clé Tile, Chassis Unlimited, Billiards, and DMAK Productions, making them ideal for businesses looking for enterprise-level Shopify Plus development, migrations, customizations, and ongoing optimization.
What to Look for in Top Shopify Plus Development Agencies 2026
Not all Shopify Plus agencies are created equal. The top ones offer more than coding, they bring strategy, design expertise, and the ability to scale with your business. Here are the key factors to consider when choosing a partner:
1. Experience with Custom Shopify Solutions
Seek an agency that builds tailor-made Shopify Plus stores, not just off-the-shelf templates. Custom solutions reflect your brand identity, streamline operations, and grow with your business.
2. A Proven Development Process
The right Shopify Plus partner follows a structured process, from discovery and planning to launch and ongoing optimization. This ensures every project is delivered efficiently, with consistent quality and performance.
3. Expertise in UX/UI, CRO, and Integrations
High-performing stores don’t happen by chance. Look for a team skilled in user experience, conversion rate optimization, and seamless third-party integrations, ensuring your store drives sales while delighting customers.
4. Ability to Scale with Advanced Functionality
As your business grows, your store should evolve. Leading Shopify Plus developers can implement complex features, custom apps, and advanced integrations that support long-term expansion and operational efficiency.
5. Reliable Ongoing Support
A Shopify store isn’t finished at launch. Choose an agency that provides continuous support, updates, and optimization to keep your store secure, fast, and conversion-focused.
There’s no shortage of agencies offering Shopify Plus development, but only a few consistently deliver stores that are scalable, efficient, and built for growth. The agencies highlighted here combine technical skill with strategic insight, making them a solid starting point for your next Shopify Plus project.
Why Ecomx Agency Stands Out
What sets Ecomx apart is their singular focus on Shopify Plus. They’re not generalists, they live and breathe Shopify, providing end-to-end solutions that help brands improve user experience, increase sales, and grow sustainably. This includes performance-driven development paired with Shopify SEO services designed to increase organic visibility and long-term traffic at scale.
Their clients range across fashion, beauty, electronics, home decor, food, and wellness, from ambitious startups to established enterprises, including names like Alo Yoga, Tentree, Kith, and Pangaia.
If you’re looking for a Shopify Plus partner who blends technical expertise with a practical, growth-focused approach, Ecomx Agency consistently delivers results while making the process smooth and collaborative.
Final Thoughts About Top 12 Shopify Plus Development Agencies List in the USA 2026
Choosing the right Shopify Plus development agency can directly impact how well your store scales, performs, and converts over time. The agencies listed above have proven experience building Shopify Plus stores for growing and enterprise brands, each with different strengths and approaches.
If long-term scalability, performance, and platform expertise are priorities, working with a specialized Shopify Plus agency is no longer optional, it’s a strategic decision that can define your growth in 2026 and beyond.
Serious about Shopify Plus growth? Work with Ecomx Agency to build a faster, smarter, conversion-focused Shopify Plus store.
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