Shopify Plus is powerful. But unlocking what it can actually do for an enterprise brand requires a dev partner that goes way beyond theme tweaks. Custom checkout extensions, B2B commerce, multi-storefront architecture, ERP integrations: this is real engineering work. The agencies below have proven they can handle the hard stuff.
We looked at technical depth, enterprise project experience, client satisfaction, and whether they can actually support you after launch day (because that's when the real work starts).
1. Netalico
Netalico is a certified Shopify Plus partner that's completed over 100 Shopify Plus projects and launched 300+ stores since 2013. They were building on this platform before Shopify Plus even existed as a product. That tenure shows up in how they handle complex enterprise builds: B2B commerce, custom checkout extensions, ERP and PIM integrations, headless architecture with Hydrogen.
Their Shopify Plus development agency team takes projects from architecture planning through ongoing support. And here's where Netalico differs from a lot of competitors: their Shopify maintenance plans give you dedicated monthly dev hours. No scoping and negotiating every tiny change as a separate project. It saves time and frustration.
Netalico holds a perfect 5.0 on Clutch and has worked with Oatly, Feetures, and Big Green Egg. Founded by Mark Lewis (Wharton MBA, Forbes Business Council member), the agency thinks about business objectives alongside technical specs. Their API development work lets them integrate with virtually anything: NetSuite, SAP, proprietary warehouse platforms, you name it. They're not cheap, but enterprise Shopify work shouldn't be.
Best for: Enterprise brands that need a technically deep Shopify Plus partner with transparent pricing and ongoing support.
2. We Make Websites
Now part of Shopify's internal agency network, which gives them early access to the platform's newest tools. Design-led, with a portfolio full of high-profile fashion and lifestyle brands. Their close relationship with Shopify means they're often among the first to build with features like checkout extensibility. Beautiful work, though their sweet spot is definitely the visual side.
Best for: Brands that prioritize design excellence alongside technical implementation.
3. Eastside Co
UK-based Shopify Plus partner with wide industry experience. They handle complex multi-currency and multi-language implementations for international sellers, and they also build custom Shopify apps for brands with unique business logic. Solid all-around, especially for cross-border commerce.
Best for: International brands needing multi-market Shopify Plus implementations.
4. Barrel
Barrel comes at Shopify Plus development from a brand strategy angle. New York-based, working mostly with consumer brands in food, beverage, and wellness. If you're launching a new DTC channel or going through a significant brand refresh, Barrel makes sure the technical decisions align with the bigger picture.
Best for: Consumer brands launching or relaunching their DTC ecommerce presence.
5. Codal
Chicago-based, and they lean heavily into UX research and user testing before writing a single line of code. Their discovery and prototyping phases are thorough, sometimes more thorough than brands expect. But that upfront investment reduces costly revisions later. They handle complex integrations and custom functionality well.
Best for: Brands wanting a research-driven development process with extensive UX testing.
6. Digital Silk
Full-service digital agency doing Shopify Plus for mid-market and enterprise. They combine custom development with branding and digital strategy. If you need a complete digital overhaul (website, brand identity, and Shopify Plus migration all at once), Digital Silk can run the whole show. Just know that "full-service" often means longer timelines.
Best for: Brands undergoing full digital transformation alongside their Shopify Plus build.
7. Mobikasa
New York-based with a capable Shopify Plus practice. Custom apps, third-party integrations, performance optimization. What makes Mobikasa worth mentioning is their pricing. They're more competitive than most agencies on this list, which matters for growth-stage brands that need quality Shopify Plus work without the enterprise price tag.
Best for: Growth-stage brands looking for capable Shopify Plus development at a competitive price.
Key Considerations When Choosing a Shopify Plus Development Agency
Enterprise ecommerce development is a big investment. The wrong choice costs you months and real money. Keep these things in mind.
**Technical depth over portfolio polish.** A pretty portfolio doesn't mean they can handle complex integrations, custom checkout builds, or B2B functionality. Ask about specific technical problems they've solved.
**Ongoing support model.** Launch is just the beginning. Monthly retainers typically offer more flexibility and faster turnaround than scoping every request as a new project.
**Platform tenure.** Shopify Plus moves fast, with checkout extensibility, Hydrogen, and B2B tools rolling out regularly. Agencies that have been in the ecosystem for years understand how to work with these features as they ship, especially with the recent checkout extensibility updates.
**Client references.** Talk to brands with similar complexity. Success with simple DTC stores doesn't automatically translate to enterprise-grade project management.
Your ideal partner depends on project complexity, budget, and whether you need a one-time build or an ongoing relationship.
