Top 5 Shopify Plus Development Agencies in 2026

Enterprise and fast-growing brands now turn to Shopify Plus development for its scalability and built‑in B2B/wholesale features. In fact, industry analysts note that by 2026 Shopify Plus “remains the dominant force” for high‑revenue merchants. With support for 10,000+ checkouts per minute and ~99.99% uptime, Plus can power large fashion, lifestyle and enterprise stores smoothly. It also offers native wholesale tools – e.g., password‑protected B2B storefronts, corporate account hierarchies, custom price lists and bulk‑order flows – so brands in fashion retail, B2B, and D2C markets can all run on one platform. These advantages make picking the right Shopify Plus agency critically important for success.

When choosing a Shopify Plus development partner, businesses should look for certified Shopify Plus Partners (ideally Platinum/Premier) with a proven track record in custom apps, UX/UI design, and headless integrations. Leading agencies today specialize in:

• Enterprise-scale builds: Custom Shopify Plus themes and stores that are “lightning-fast” and mobile‑optimized. These agencies design brand-aligned UX/UI that drives conversions (as Swanky notes, “great design is the key to engaging shopping experiences”)
• Custom app & integrations: Many partners develop bespoke Shopify apps and complex integrations (ERP, CRM, fulfillment, etc.). For example, BSS Commerce explicitly offers “Custom Shopify Plus App Development” for tailored solutions that connect smoothly to third‑party systems.
• B2B/Wholesale functionality: Experts configure Plus’s B2B features (company accounts, tiered pricing, bulk checkout). A 2026 guide highlights firms like Uncap and Netalico that handle “complex wholesale requirements” (corporate hierarchies, localized pricing, bulk SKUs) on Plus. Agencies like Digisoft Solution likewise build password‑protected wholesale channels and bulk‑order flows into stores.
• Advanced technologies: Top agencies stay on the cutting edge of Headless/Hydrogen development and AI commerce. As one analysis notes, 2026 partners need “Headless Commerce & Hydrogen” expertise for sub‑second sites and even “Agentic Adapters” for LLM‑driven shopping.

Benefits of Shopify Plus Development

Shopify Plus is built for high-growth and enterprise eCommerce brands that need scalability, flexibility, and performance beyond standard platforms. When combined with professional Shopify Plus development, it becomes a powerful engine for long-term growth.

1. Scalable & High-Performance Platform: Shopify Plus is designed to handle high traffic, large catalogs, and flash sales without slowing down. It automatically scales during peak demand, making it ideal for fast-growing brands, fashion drops, and enterprise stores.

2. Advanced Customization & Flexibility: Unlike standard Shopify plans, Shopify Plus allows deep customization of themes, checkout experiences, and business logic. With custom development, brands can build tailored shopping experiences, complex pricing rules, and unique user journeys.

3. Built-In B2B & Wholesale Capabilities: Shopify Plus supports B2B and D2C commerce on a single platform, offering features like company accounts, custom pricing, bulk ordering, and wholesale storefronts—perfect for manufacturers and enterprise clients.

4. Faster Time to Market: Shopify Plus enables brands to launch and scale faster than traditional enterprise platforms. Development cycles are shorter, updates are easier, and new features can be rolled out quickly without heavy infrastructure management.

5. Global & Multi-Store Selling: With multi-currency, multi-language, and region-specific storefronts, Shopify Plus makes international expansion seamless. Brands can manage multiple stores from one dashboard while delivering localized experiences.

6. Automation & Operational Efficiency: Shopify Plus includes powerful automation tools that reduce manual work, streamline operations, and improve accuracy, allowing businesses to focus more on growth and less on day-to-day management.

7. Better UX/UI & Higher Conversions: Custom Shopify Plus UX/UI design improves navigation, mobile experience, and checkout flow, leading to higher conversion rates, better engagement, and increased average order value.

8. Secure, Reliable & Low Maintenance: Shopify Plus offers enterprise-grade security, compliance, and reliability. Hosting, updates, and security are managed by Shopify, reducing technical risk and maintenance overhead.

5 Best Shopify Plus Development Agencies in 2026

1. Digisoft Solution

Specialties: Custom Plus stores, UI/UX design, B2B wholesale, migrations, custom apps,  Full-stack Plus development.

Digisoft Solution bills itself as a “leading Shopify Plus development agency” with certified experts who “build custom Shopify Plus stores optimized for high traffic and conversion”. Its USA‑based team emphasizes enterprise‑grade performance – they highlight that Plus can handle “large traffic spikes (over 10K checkouts per minute)” with nearly 100% uptime. The firm designs lightning‑fast, mobile‑optimized Shopify Plus themes and sites, ensuring “intuitive navigation” and SEO‑friendly layouts to boost sales. In practice, Digisoft builds stores with advanced features (personalized product recommendations, responsive design, etc.) and conducts full migrations from Magento/WooCommerce while preserving data.

Key services Digisoft offers include:

• Custom Plus theme & store development: Building high‑performance storefronts using Shopify’s Liquid framework, fully tailored to the brand. (“We transform your business vision… building high-performance eCommerce websites,” as one partner agency notes.
• UX/UI design & CRO: Digisoft’s UI/UX designers craft conversion‑focused layouts and calls‑to‑action. They integrate A/B testing and optimize checkout flows – several clients see double‑digit revenue lifts after Digisoft redesigns
• Headless & Custom Apps: They develop bespoke Shopify apps and scripts (for inventory, subscriptions, headless storefronts, etc.). This includes advanced automation (Shopify Flow/Functions) and integrations with ERP/CRM systems.
• B2B/Wholesale setups: Digisoft configures Shopify Plus’s native B2B tools – e.g. password‑protected wholesale sites, company accounts, custom price lists, and bulk ordering, enabling both D2C and wholesale channels on one platform.
• Ongoing support: Post‑launch, they offer 24/7 monitoring, performance tuning, and continuous optimizations. Digisoft stresses long‑term partnerships and agile processes, assigning dedicated teams so clients have reliable support.

Why Digisoft?

Their site emphasizes deep Shopify expertise and a USA‑focused approach. As they note, their team “works seamlessly with clients nationwide, providing both local support and global expertise”. With strong eCommerce credentials, Digisoft aims to serve a range of clients (from startups to large retailers) by covering development, design, and strategy all under one roof.

2. Mobikasa

Website: https://www.mobikasa.com/
Specialties: Full-stack Plus development, custom apps, CRO, strategy

Mobikasa is a New York–based digital agency known for Shopify Plus and custom app development. Their 2026 guide touts 14+ years of experience and over 1,000 clients, emphasizing that Mobikasa doesn’t just build stores; they “build growth engines”. They offer true full-stack Shopify services: from initial store setup and theme customization to bespoke Shopify apps and advanced integrations. This means Mobikasa can handle everything from simple Plus migrations to complex marketplace functionalities and multichannel architectures.

Key points about Mobikasa:

• Full-stack services: “From store setup and theme customization to custom Shopify apps and integrations, they handle it all”. They develop everything in-house – including mobile apps, branding, SEO and CRO – so Plus projects stay cohesive.
• Data-driven strategy: Their approach blends design, analytics and optimization. Mobikasa highlights a “data-driven strategy” where UX/UI design, CRO, and SEO are integrated for higher conversion rates.
• U.S. market focus: As a “New York‑based, American” agency, Mobikasa stresses its deep understanding of U.S. eCommerce needs. They note this local focus ensures they meet the unique demands of American brands.
• Proven track record: They emphasize successful outcomes: higher sales, faster performance, and better experiences. Mobikasa positions itself among “the top Shopify Plus agencies”.

They handle both B2C and B2B projects, often integrating custom functionality or loyalty programs. Their team frequently appears on partner lists for Shopify Plus development thanks to this breadth of service.

3. BSS Commerce

Website: https://bsscommerce.com/
Specialties: End-to-end Plus development, custom apps, migrations, UX/UI

BSS Commerce is a globally recognized eCommerce agency (headquartered in Vietnam with US offices) and a certified Shopify Plus Partner. With 13+ years’ experience and 100,000+ clients worldwide, BSS specializes in delivering scalable Shopify Plus solutions to enterprise and mid‑market brands. Their services cover everything from initial build to post-launch optimization. As BSS puts it, they provide “end-to-end solutions across Shopify… offering custom app development, theme design, and full-scale Shopify Plus website development”.

Notable BSS offerings:

• Shopify Plus development & migration: They transform a business vision into a high‑performance Shopify Plus site. Their builds are SEO‑optimized, mobile‑friendly and built within tight timelines (as their marketing emphasizes). They also specialize in migrating complex stores from Magento, WooCommerce, etc., with zero data loss.
• Custom apps & integrations: BSS has deep expertise in system integration – connecting Shopify Plus to ERPs (NetSuite, SAP, etc.), payment gateways, and other tools. They explicitly advertise “Custom Shopify Plus App Development” for unique store needs.
• Theme & UX/UI design: They excel in theme development. BSS notes their “deep expertise in Shopify UX/UI design” to create unique, brand‑aligned themes that enhance user experience and conversions.
• B2B and multi-channel: Their work often includes B2B features (e.g. tiered pricing and wholesale logins) and multi-currency setups for global brands. BSS frequently serves retail and fashion clients – in fact, they list “Clothing & Accessories” as a core industry, indicating experience with apparel/electronics stores.
• Ongoing support: BSS provides dedicated Plus maintenance, training and optimization after launch, similar to Digisoft’s model.

Because BSS positions itself as both a global enterprise partner and a cost-effective solution, it appeals to brands seeking a proven Shopify Plus team with extensive technical breadth.

4. eHouse Studio

Website: https://www.ehousestudio.com/
Specialties: Full-service Plus solutions, CRO/retention, POS integration

eHouse Studio markets itself as “the first all-in-one Shopify Plus commerce agency in North America”, serving as a holistic partner with a full suite of services. Based in the US, eHouse covers strategy, design, development, integrations and marketing under one roof. They emphasize a growth‑focused vision, leveraging real customer data for continuous optimization. As their site says, “we leverage advanced Shopify Plus technologies to transform your site from transactional to engaging”.

Key strengths of eHouse Studio:

• Strategy & UX: eHouse combines strategy with high-concept UX design. They view an online store as a “physical space” and use digital storytelling to weave brand narrative into every interaction. This focus on brand experience and customer retention sets them apart.
• Design & Development: Their team (including Shopify Plus & Klaviyo specialists) delivers top-tier UI/UX design and front-end development. They handle headless storefronts, custom apps and theme builds that align with brand identity. eHouse is known for projects boosting engagement and UX (for example, their case studies include lifestyle and wellness brands with heavy design needs).
• Integrations & Operations: eHouse offers backend integrations (ERP, inventory, POS) and omnichannel support (e.g. retail POS integration) to streamline operations. They automate workflows and ensure multi-channel sales run smoothly.
• Marketing & CRO: Unlike some dev‑only shops, eHouse also handles marketing. They implement CRO tactics, A/B testing, SEO, and email/sms campaigns. In fact, Swanky and eHouse often pair: while Swanky is CRO‑focused, eHouse emphasizes loyalty and retention (eHouse’s “Retain Shopify Plan” focuses on driving repeat business).
• Full suite service: By branding themselves as “all-in-one,” eHouse promises clients that they won’t need to juggle multiple agencies. This appeals to brands that want a single point of contact for design, dev, and growth.

eHouse’s holistic approach (strategy through ongoing optimization) and North American focus make them a top pick for brands wanting end-to-end Shopify Plus support. They’re especially noted for UX/branding work – indeed, listings credit them

5. Swanky 

Website: https://swankyagency.com/
Specialties: CRO, subscription DTC, design, internationalization

Swanky is a UK‑based Shopify Plus agency (Shopify Platinum Partner) famous for conversion optimization and subscription commerce. Many retailer lists cite Swanky as a top Plus partner for ambitious DTC brands. They explicitly call themselves the “go-to Shopify Plus agency for DTC subscription brands”. This specialization reflects in their services: Swanky’s “award‑winning CRO team designs, implements and monitors data-driven optimization and experimentation programs”. They excel at improving key metrics like cart abandonment and lifetime value.

Highlights of Swanky’s approach:

• CRO & growth sprints: Swanky uses proprietary data science to identify friction points and run A/B tests. They offer lifecycle marketing and retention initiatives (Swanky even has dedicated “Growth Sprints” to boost subscription revenue).
• UX/UI & design: Strong branding and visuals are Swanky’s forte. They state “great design is the key to engaging shopping experiences,” using creative redesigns to increase conversion. Their designers and Klaviyo specialists rework sites and email flows to reinforce brand identity and engagement.
• Subscription & DTC: For brands built on recurring revenue, Swanky implements and optimizes subscription platforms (Recharge, Bold, etc.) to create seamless recurring-buying experiences.
• International expansion: Swanky also helps brands go global, handling migrations to Shopify Plus and implementing multi-currency, multi-language storefronts where needed. (Swanky’s site highlights migration, internationalization and replatforming success stories.)
• Full funnel marketing: In addition to dev, Swanky provides SEO, PPC and content marketing, delivering ROI at every funnel stage. They often manage post-launch advertising and analytics for clients.

Swanky’s track record includes fashion, beauty and accessory brands (e.g., Saddleback, BOUNCE Bands). Their multi‑disciplinary team of designers, Shopify developers and marketers makes them a one-stop agency for brands focused on rapid growth. As one guide put it, Swanky is “synonymous with Conversion Rate Optimization (CRO)”, underlining their core strength.

Choosing the Right Partner

All five agencies above are Shopify‑certified and have solid Plus portfolios. When selecting among them (or others), consider:

• Partner level: Ensure the agency is a Shopify Plus Partner (Platinum/Premier status is ideal) so they have direct Shopify support.
• Technical depth: Ask about headless commerce, React frameworks (Hydrogen), and cutting‑edge tools. If they can’t discuss state management (Redux, Recoil, etc.) in Hydrogen, they may not be ready.
• Vertical expertise: Check industry fit – e.g. many Plus agencies excel in fashion/apparel (Clothing & Accessories), electronics, or B2B. You want a team that knows your market.
• Range of services: Confirm they cover your needs (custom apps, UX/UI, marketing). All listed agencies above do app dev, theming, and CRO, but smaller firms might not.
• Portfolio & reviews: Look at case studies and client feedback on Clutch/GoodFirms. Top agencies will show examples of high-volume Plus stores and outcomes (sales lifts, traffic gains, etc.).
• Communication & process: A good agency will assign a dedicated team or project manager and provide a clear development process (agile sprints, staging sites, etc.).

Shopify vs Shopify Plus

While both Shopify and Shopify Plus are built on the same core platform, Shopify Plus is designed specifically for high-growth, enterprise, and B2B businesses that require advanced features, scalability, and customization.

Summary

• Digisoft Solution (USA/Global) – Expert in high‑performance Plus builds, B2B/wholesale stores, and end‑to‑end support.
• Mobikasa (USA/Global) – Full‑stack Plus and app development, with a data‑driven, American market focus.
• BSS Commerce (Global) – End‑to‑end certified partner for large Shopify Plus migrations, custom apps and integrations.
• eHouse Studio (USA) – All‑in‑one North American partner specializing in UX/branding, omnichannel integration and retention strategies.
• Swanky (UK/Aus) – Conversion and subscription experts with award‑winning CRO services and strong design/UI capabilities.

Each agency above has proven capabilities in custom app development, UI/UX design, B2B eCommerce, and the retail/fashion verticals, helping businesses from startups to enterprises thrive on Shopify Plus. Their deep partner status and specialized teams ensure that your Plus store will be robust, flexible and ready for future growth.

For the latest on Shopify Plus development Cost, see our dedicated guide.