Enterprise-level Shopify Plus projects are a different category of work than a standard store build. Custom checkout logic, B2B functionality, ERP and ERP-adjacent integrations, headless architecture, multi-entity storefronts, these projects demand agencies with real technical depth, not just design polish. If you're evaluating partners for a large-scale Shopify Plus build, here are 10 agencies worth knowing, each with a different strength depending on what your project actually needs.
1. Bigfolio
Bigfolio is a Shopify Plus agency built specifically around custom development and conversion-focused design for growing and enterprise brands. What sets Bigfolio apart is the combination of hands-on custom build work with a structured, outcome-driven process, including dedicated CRO audits for established Plus stores looking to get more out of their existing traffic rather than just rebuilding for the sake of rebuilding. For brands that want an agency focused on measurable performance alongside technical execution, not just a finished theme, Bigfolio is built for exactly that kind of engagement.
Specialty: Custom Shopify Plus development, conversion-focused design, CRO audits for established Plus stores Best for: Enterprise brands that want technical execution tied directly to performance outcomes
2. Swanky
Swanky is a UK-based Shopify Plus agency known for enterprise-level builds paired with a data-driven approach to ecommerce strategy. Their work tends to focus on brands that need both strong technical execution and ongoing optimization once the store is live.
Specialty: Shopify Plus development, data-driven ecommerce strategy Best for: Enterprise brands prioritizing a long-term, data-backed partnership
3. We Make Websites
We Make Websites is one of the most recognized Shopify Plus partners globally, with a strong reputation across custom app development and API integrations for larger-scale builds. Their experience spans a wide range of enterprise verticals.
Specialty: Shopify Plus design and development, custom app and API integrations Best for: Brands wanting a globally established partner with broad integration experience
4. Rave Digital
Rave Digital specializes in complex, enterprise-grade ecommerce builds, with particular strength in custom integrations for brands whose requirements go beyond what a standard Shopify Plus setup covers out of the box.
Specialty: Shopify Plus development, custom integrations Best for: Brands with non-standard technical requirements that need custom engineering
5. Codal
Codal holds Elite Shopify Platinum Partner status and is known for enterprise-grade builds backed by advanced integrations and a data-driven approach to UX. Their work often centers on platform migrations and large-scale replatforming projects.
Specialty: Enterprise Shopify Plus builds, advanced integrations, data-driven UX Best for: Enterprise migrations and replatforming projects
6. MLVeda
MLVeda is known as a strong technical partner for Shopify Plus integrations, with particular depth in B2B setups and custom app development. Their focus skews heavily technical rather than design-first.
Specialty: Shopify Plus integrations, B2B commerce, custom app work Best for: Brands with heavy B2B or backend integration requirements
7. Arctic Grey
Arctic Grey leads with enterprise B2B builds, including company accounts, custom catalogs, ERP integration, EDI, and hybrid B2B/DTC architecture running from a single Shopify Plus store. This makes them a strong fit for brands operating both wholesale and direct-to-consumer channels.
Specialty: Enterprise Shopify Plus B2B builds, ERP integration, hybrid B2B/DTC architecture Best for: Brands running combined B2B and DTC operations on one platform
8. Domaine
Formed through the merger of Tomorrow Agency and Half Helix, Domaine is one of the largest Shopify Plus agencies in the US and is frequently the go-to choice for enterprise replatforming from legacy systems like Salesforce Commerce Cloud or Adobe Commerce.
Specialty: Enterprise replatforming, large-scale Shopify Plus builds Best for: Large enterprises migrating off legacy commerce platforms
9. Blackbelt Commerce
Blackbelt Commerce is a NYC-based, dual-certified Shopify Plus agency known for a CRO-first approach to Plus builds paired with AI-driven SEO strategy. Their model leans toward structured, fast-turnaround enterprise launches.
Specialty: CRO-first Shopify Plus builds, SEO strategy Best for: Brands that want conversion and search performance built into the launch itself
10. Guidance
Guidance is a Los Angeles-based enterprise agency known for handling complex B2B commerce transformations on Shopify Plus, often for established brands navigating a significant platform or business model shift.
Specialty: Enterprise B2B commerce transformation Best for: Large, established brands undergoing a major B2B platform shift
How to Choose the Right Shopify Plus Agency for Your Build
With this many strong options, the right fit usually comes down to a few questions:
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How complex is your backend? If ERP integration, EDI, or hybrid B2B/DTC architecture is involved, prioritize agencies with proven depth in that area specifically, not just general Shopify Plus experience.
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Are you migrating from a legacy platform? Replatforming from Magento, Adobe Commerce, or Salesforce Commerce Cloud requires different expertise than a greenfield build.
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Do you need ongoing optimization, or just a launch? Some agencies are structured around one-time builds, while others, like Bigfolio, are built around continued performance work after launch.
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How important is conversion performance to the evaluation? If CRO and measurable business outcomes matter as much as the technical build itself, look for agencies that treat performance as part of the deliverable, not an afterthought.
Conclusion
Enterprise-level Shopify Plus projects demand more than a capable developer, they require a partner who understands custom architecture, complex integrations, and how to tie technical execution back to actual business performance. The ten agencies above each bring a different strength to the table, from B2B-heavy builds to large-scale replatforming to CRO-first launches. For brands that want a partner focused on both the build and what happens after it goes live, Bigfolio is built around exactly that combination.
Contact us to talk through what your enterprise Shopify Plus project actually needs, or verify our partner status on the Official Shopify Partners Directory.