Finding the right Shopify Plus agency feels a bit like choosing a business partner.
You're trusting someone with your online storefront, your customer experience, and ultimately, your revenue.
The wrong choice means missed deadlines, budget overruns, and a site that doesn't convert.
The right choice? A team that becomes an extension of your business and helps you scale faster than you could alone.
Shopify Plus powers over 4.5 million stores globally, contributing $319 billion to e-commerce.
But the platform's enterprise features, B2B capabilities, and advanced customization options require specialized expertise to unlock fully.
That's where certified Shopify Plus agencies come in.
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What is a Shopify Plus agency?
A Shopify Plus agency is a certified partner that specializes in building, migrating, and optimizing stores on Shopify's enterprise platform.
Unlike general Shopify developers, these agencies have direct relationships with Shopify, proven track records with high-volume merchants, and deep expertise in the platform's most advanced features.
There are three tiers of partnership to know about:
- Shopify Partners can build on standard Shopify plans
- Shopify Plus Partners are certified for enterprise-level work and have demonstrated success with high-volume merchants
- Shopify Premier Partners represent the top tier, with extensive experience and direct Shopify support channels
These agencies typically offer services ranging from full store builds and migrations to ongoing optimization, B2B commerce setup, headless implementations, and complex ERP integrations.
Most work on either project-based pricing or monthly retainers, with costs varying widely based on scope and complexity.
How we evaluated these Shopify Plus agencies
To create this list, we looked at several factors that actually matter when choosing a partner:
- Certification status: All agencies listed are certified Shopify Plus Partners at minimum
- Track record: Years of experience and number of successful implementations
- Specialization: Specific expertise that differentiates them (B2B, headless, migrations, etc.)
- Client portfolio: Notable brands they've worked with and case study results
- Geographic coverage: Where they're based and who they can effectively serve
- Review scores: Aggregated ratings from Clutch, Google, and industry platforms
Let's break down the top options.
Top Shopify Plus agencies compared
1. Atwix
Best for: Enterprise B2B commerce transformations
Atwix has been in the B2B e-commerce game since 2006, giving them nearly two decades of experience that shows in their work.
They've completed over 180 enterprise B2B implementations with a 96% client retention rate, numbers that speak to both their technical capabilities and their client relationships.
What sets Atwix apart is their proprietary Sirius integration platform.
While most agencies struggle with basic ERP connections, Sirius offers pre-built connectors for major systems like P21, Salesforce, Expertek, Kodaris, and Infor.
The platform handles field-level caching, dynamic schema mapping, and real-time data synchronization across multiple enterprise systems.
Their client reviews consistently mention "elegant solutions to complex problems" and "fair and accurate" project estimates.
If you're a manufacturer or distributor dealing with complex wholesale workflows, custom pricing tiers, and intricate order management, Atwix has the receipts to back up their claims.
Pros:
- Deep B2B commerce expertise with nearly 20 years of experience
- Proprietary Sirius ERP integration platform
- Industry-leading 96% client retention rate
- Complex wholesale workflow automation capabilities
Cons:
- Premium pricing that reflects their specialization
- Best suited for larger enterprises with complex needs
- May be overkill for smaller DTC brands without B2B requirements
2. Barrel
Best for: CPG and omnichannel brands
Barrel has been helping brands win on Shopify since 2009 and became a Shopify Premier Partner in 2017. That longevity matters.
They've seen the platform evolve and have adapted their approach accordingly.
Their sweet spot is consumer packaged goods and food and beverage brands. Notable work includes McCormick & Company, OneSkin, and Bobo's.
Barrel's approach emphasizes omnichannel commerce, helping brands expand beyond pure e-commerce into retail (Shopify POS), B2B wholesale, and subscription models.
One area where Barrel stands out is subscription growth and retention marketing.
For CPG brands looking to build recurring revenue, their expertise in customer journey optimization and retention automation can be the difference between one-time buyers and loyal subscribers.
Pros:
- Longstanding Shopify partnership with deep platform knowledge
- Strong CPG and food/beverage industry expertise
- Subscription commerce specialization
- Omnichannel approach covering POS, B2B, and DTC
Cons:
- NYC-based location may impact timezone coordination for West Coast clients
- Focus on specific verticals means less experience outside CPG
3. BlueSwitch
Best for: Fashion and beauty brands
BlueSwitch brings decades of combined B2B and DTC experience to their Shopify Plus work.
Their portfolio reads like a who's who of fashion and beauty: L'Oréal, Ted Baker, Perry Ellis, Mario Badescu, and European Wax Center.
What makes BlueSwitch particularly valuable is their integration capabilities.
They connect Shopify Plus with the tools that power modern e-commerce: Google, Amazon, Klaviyo, Yotpo, CRM systems, and fulfillment channels.
For fashion brands juggling multiple sales channels and marketing platforms, this integration expertise streamlines operations significantly.
Their B2B on Shopify offering is particularly robust, with custom pricing logic, wholesale portals, and ERP integrations that handle the complexity fashion brands face when selling to retailers alongside their direct-to-consumer business.
Pros:
- Deep fashion and beauty industry knowledge
- Comprehensive service offering from design to marketing
- Strong migration expertise from platforms like Magento
- Marketing integration capabilities with major platforms
Cons:
- Broad focus across many services may lack niche specialization
- Pricing requires consultation, no transparent tiers
4. Netalico
Best for: High-growth DTC brands
Netalico positions itself as a conversion-focused Shopify Plus partner, and their results back that up.
One client saw conversion rates jump from 1.75% to 2.4% after working with them. That kind of improvement translates directly to revenue.
With 10+ years of experience and 100+ successful implementations, Netalico has developed a reputation for listening to clients and building long-term solutions rather than quick fixes.
Their client testimonials consistently highlight responsiveness and the ability to turn ideas into scalable implementations.
Migration is a particular strength. They've successfully moved merchants from Magento, BigCommerce, and WooCommerce to Shopify Plus while protecting SEO rankings and improving site performance.
For DTC brands hitting the limits of their current platform, Netalico offers a proven migration path.
Pros:
- Proven conversion rate improvements with measurable results
- Strong technical development team with Shopify Plus expertise
- Client-focused approach with responsive communication
- Migration expertise from all major e-commerce platforms
Cons:
- Smaller team than some enterprise-focused competitors
- Less emphasis on B2B compared to DTC specialization
5. We Make Websites
Best for: UK and European headless commerce
Based in London, We Make Websites has carved out a niche as the go-to agency for headless Shopify Plus implementations.
Their focus on performance optimization and Core Web Vitals makes them ideal for brands where site speed directly impacts conversion.
Headless commerce decouples the frontend presentation layer from Shopify's backend, allowing for custom experiences while maintaining the platform's robust commerce capabilities.
We Make Websites specializes in modern JavaScript frameworks and API integrations that make this architecture work.
Their 4.8/5 average review score reflects technical excellence, though their UK-centric approach means they're best suited for European businesses or US brands with significant European operations.
Pros:
- Headless architecture expertise with modern frameworks
- Performance optimization and Core Web Vitals focus
- UK and European market knowledge
- Strong technical capabilities for complex builds
Cons:
- UK-centric location creates coordination challenges for US-based brands
- Headless focus may not suit businesses needing simpler solutions
6. Ecomx Agency
Best for: Fast-launch Shopify Plus stores
Ecomx Agency has launched over 250 Shopify stores and earned 150+ five-star reviews.
Based in New York City, they've worked with brands ranging from Tentree and Kith to Alo Yoga. Their focus is on getting stores live quickly without sacrificing quality.
Their process emphasizes speed and simplicity. They claim most clients come from word-of-mouth and Shopify referrals, which suggests satisfied customers.
The agency handles everything from custom theme development to app integration, positioning themselves as a one-stop shop for brands looking to move fast.
For brands with tight launch timelines or those looking to quickly upgrade from standard Shopify to Plus, Ecomx offers a streamlined approach that prioritizes time-to-market.
Pros:
- High volume of completed projects demonstrates efficiency
- Fast setup and launch capabilities
- Strong review ratings across 150+ reviews
- Comprehensive service offering from design to growth
Cons:
- Speed-focused approach may prioritize launch over customization
- Less enterprise-focused than some competitors
7. Guidance
Best for: Enterprise migrations and complex builds
Guidance is an award-winning Shopify Plus partner that emphasizes reliability and uptime.
Their 99.99% average uptime focus matters for enterprise merchants where even minutes of downtime translate to significant revenue loss.
Their client list includes major brands like K-Swiss, Herschel Supply Co., and Sony.
Guidance offers comprehensive platform expertise spanning B2B and B2C commerce, making them suitable for complex businesses with multiple sales channels and customer types.
For enterprise merchants migrating from legacy platforms or requiring complex customizations, Guidance's emphasis on stability and their proven track record with major brands provides confidence.
Pros:
- Enterprise-grade reliability with 99.99% uptime focus
- Award-winning work recognized by industry
- Strong brand portfolio including major retailers
- Comprehensive B2B and B2C platform expertise
Cons:
- Enterprise focus may not suit smaller merchants
- Premium pricing expected for their level of service
How to choose the right Shopify Plus agency for your store
With seven solid options, how do you pick? Here's the short version: match the agency's specialty to your biggest need.
If you're a B2B manufacturer with complex ERP requirements, Atwix is the clear choice.
Running a CPG brand with subscription ambitions? Barrel's your team. Need headless commerce for a European market? We Make Websites has the expertise.
Beyond specialty, consider these factors:
Define your project scope first. Are you migrating from another platform? Building from scratch? Adding B2B capabilities? The scope determines which agency capabilities matter most.
Evaluate communication style. You'll be working closely with this team for months. Do they respond quickly? Do they explain technical concepts clearly? The best technical agency is worthless if you can't communicate with them.
Check relevant case studies. An agency's work with fashion brands may not translate to your industrial B2B business. Look for case studies in your industry or with similar challenges.
Red flags to watch for:
- Lack of Shopify Plus certification
- Vague pricing with no range provided
- No case studies or client references
- Promises that sound too good to be true
What to expect when working with a Shopify Plus agency
Most full store builds take 3-6 months from kickoff to launch. Here's how that typically breaks down:
Discovery and planning (2-4 weeks): The agency learns your business, goals, and requirements. This phase sets the foundation for everything that follows.
Design (4-6 weeks): Wireframes, visual design, and user experience planning. You'll review and approve before development begins.
Development (8-12 weeks): The actual build, including any custom features, integrations, and migrations. This is where the bulk of the work happens.
Testing and launch (2-3 weeks): Quality assurance, performance testing, and the actual go-live.
Post-launch support: Most agencies offer ongoing retainer relationships for optimization, support, and incremental improvements.
Pricing varies dramatically based on scope. A simple theme customization might start around $10,000-$25,000, while complex migrations with custom integrations can run $100,000+.
Most agencies work on fixed-price projects for defined scopes or monthly retainers for ongoing work.
Automating customer support for your Shopify Plus store
While your agency handles the technical build, there's another piece of the e-commerce puzzle worth considering: customer support.
As your store scales, support volume scales with it. Hiring agents for every channel gets expensive fast.
That's where AI phone support comes in. Ringly.io offers Seth, an AI phone agent that handles inbound calls 24/7. It answers questions, looks up orders, processes returns, and only escalates when necessary.
For Shopify Plus stores already investing in their platform, automating phone support can resolve around 73% of calls without human intervention.
The best part? You can set it up in minutes, not months. While your agency builds your store, Seth can be handling customer calls.
Frequently Asked Questions
What does a Shopify Plus agency do?
A Shopify Plus agency specializes in building, migrating, and optimizing stores on Shopify's enterprise platform. They handle everything from custom development and B2B setup to ERP integrations and ongoing optimization.
How much does a Shopify Plus agency cost?
Costs vary widely based on scope. Simple projects might start at $10,000-$25,000, while complex enterprise builds can exceed $100,000. Most agencies offer both project-based pricing and monthly retainers.
What's the difference between a Shopify Partner and Shopify Plus Partner?
Shopify Partners can build on standard Shopify plans. Shopify Plus Partners are certified for enterprise-level work, have demonstrated success with high-volume merchants, and receive direct support from Shopify.
How long does a Shopify Plus migration take?
Most full store builds or migrations take 3-6 months. Simple theme customizations might take 4-8 weeks, while complex builds with custom integrations can extend to 6+ months.
Should I hire a Shopify Plus agency or build in-house?
Hire an agency if you need specialized expertise (B2B, headless, complex integrations), have a tight timeline, or want to minimize risk. Build in-house if you have technical expertise, simpler requirements, and want ongoing control.
What should I look for when choosing a Shopify Plus agency?
Look for Shopify Plus certification, relevant case studies in your industry, clear communication, transparent pricing ranges, and expertise in your specific needs (B2B, migrations, headless, etc.).
Can a Shopify Plus agency help with B2B commerce?
Yes, many Shopify Plus agencies specialize in B2B implementations. Atwix and BlueSwitch are particularly strong in this area, offering custom pricing, wholesale portals, and ERP integrations for B2B workflows.
