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Shopify Agency & Shopify Plus Experts
in Barcelona & London
Certified Shopify Plus Partner Agency in Barcelona & London. We help ambitious brands design custom Shopify themes, migrate from any platform, and scale high-converting e-commerce stores worldwide. Partner with experienced Shopify developers and migration specialists trusted by leading European brands.
Why Choose Our Shopify Agency?
We work as long-term partners with ambitious e-commerce brands, offering:
- Strategic Shopify launches—from planning to live store delivery
- Advanced Shopify Plus & custom theme architecture
- Platform migrations with zero downtime and full SEO preservation
- Ongoing optimization, support, and proactive store performance reviews
Our collaborative process, direct developer access, and results-driven approach ensure your store grows with measurable success. Learn more about our Shopify agency
Serving Shopify Clients in the UK, Spain, Europe & Beyond
We support startups and established brands—delivering high-quality Shopify stores, ongoing optimization, and expert support wherever you are.
Shopify Case Studies & Client Results
Explore real-world Shopify case studies from brands we’ve supported as a Shopify agency partner. Each success story highlights a unique e-commerce challenge and how our team’s strategic solutions powered growth and results.
Nude Project
Nude Project is recognized as one of Europe’s fastest-growing fashion brands, with a dedicated global community and a unique, brand-first philosophy.
We’ve been their Shopify agency partner since the very beginning, back when it was just founders Alex and Bruno. Over the years, we’ve supported their journey from a small startup to a team of over 150 employees, providing theme development, e-commerce growth strategies, and ongoing technical support.
Today, we’re developing a new version of their store, implementing the latest Shopify technology and enhanced features to power their next phase of expansion.
Hunza G
Hunza G is a renowned British brand, celebrated worldwide and featured in iconic Hollywood productions.
We supported Hunza G’s migration to Shopify and have continued as their trusted Shopify agency ever since. Our team has implemented multiple theme enhancements and user experience improvements, and we’re currently working on a major store update to take their online presence to the next level.
Marfa Stance
Marfa Stance is a contemporary fashion brand known for its innovative, modular outerwear and modern design sensibility.
We led a full custom redesign of their online store, migrating Marfa Stance from a headless architecture to Shopify. This transformation delivered a seamless user experience, streamlined operations, and set the foundation for their next phase of digital growth.
We developed a fully tailor-made custom Shopify theme with advanced features and attention to detail,
We developed a fully custom theme for The One Glove, featuring complex functionalities and a
We migrated the store to Shopify, configured a Shopify 2.0 ultimate template, and developed custom
Shopify Template Configuration: Setup of a premium 2.0 theme with custom development sections for the
We customized the theme extensively, collaborating closely with Nude Project to enhance their user experience
This Shopify Store was founded in 2022. Fabric of Society is the e-commerce that brings
For enterprise client Sabyasachi, we meticulously crafted a bespoke theme over three months, and, buoyed
Efficiently developed a custom store template for MOU in just 3 months, offering user-friendly design
Shopify Agency Services to Accelerate Your Growth
We focus on four core Shopify services: custom themes, theme tweaks, store setups, and migrations. By specializing, we deliver exceptional quality through direct collaboration and Shopify Plus expertise.
Experience with Advanced Shopify Builds & Optimizations
Our team is trusted by ambitious brands for complex Shopify Plus builds, performance optimization, and custom integrations. We go beyond standard setups—delivering robust theme architecture, advanced app integrations, and technical solutions that help your store scale faster and convert more customers.
Custom Shopify Theme Design
Recommended for Medium-to large-sized businesses.
Design and Development of a tailor-made Shopify theme.
Bespoke theme design matched to your brand.
UX/UI prototypes before development.
Fast, responsive, and scalable code.
Cross-browser and mobile optimized.
Open Service Page
Shopify Theme Customization
Recommended for small-to-medium-sized businesses.
Modifications and improvements of an existing Shopify theme.
Custom edits to any Shopify theme.
UX improvements and new feature integrations.
Detailed documentation and video tutorials.
Thorough QA and ongoing support.
Open Service Page
Shopify Store Setup
Recommended for startups and small businesses.
E-commerce set up with a theme for new businesses and startups.
Full store setup, branding, and domain connection.
Theme installation and essential app setup.
Payment, shipping, and tax configuration.
Post-launch training and support.
Open Service Page
Platform migration to Shopify
For any business not in Shopify
CMS migrations from other platforms to Shopify.
Migrate from WooCommerce, Magento, and more.
Full data and SEO transfer.
Seamless redirects and zero downtime.
Training and post-launch QA.
Open Service Page
Ongoing Support for Your Shopify Growth
Enjoy peace of mind with direct access to our Shopify experts for maintenance, upgrades, and growth strategies. No ticket queues or slow responses, just personal, proactive support tailored to your store’s evolving needs.
We go beyond one-off projects and become your ongoing Shopify Agency partner. Our continuous support includes:
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Regular theme edits and store improvements
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Priority troubleshooting and technical support
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Direct contact with our experts—no tickets, no intermediaries, just fast and personal support whenever you need it
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Performance reviews and strategic planning
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Access to our exclusive network of top-tier Shopify experts who have worked with some of the leading e-commerce brands on the platform
As your trusted Shopify Agency, we’re dedicated to helping your brand scale and adapt to every market shift. Our long-term partnerships are built on transparency, expertise, and real results.
Trusted by World-Class E-commerce Brands on Shopify
Read genuine reviews and success stories from brands who partnered with our Shopify agency for development, migration, and long-term e-commerce growth.
Why Choose Shopify for Your E-commerce Store?
Trusted by over 2 million businesses worldwide, Shopify empowers your brand with a secure, easy-to-use, and fully customizable platform.
From fast setup to global selling, built-in SEO to powerful analytics, Shopify helps you grow—supported by thousands of apps and a world-class community.
Top Shopify benefits:
Quick store launch & easy management
Powerful built-in SEO tools
Scalable for any business size
Secure hosting and payments
Global selling & multi-language support
Official Shopify Plus Partner Agency
As an official Shopify Plus Partner agency, we’re recognized among the world’s leading Shopify experts.
Our Plus Partner status gives your brand direct access to exclusive Shopify features, priority support, and early platform updates—helping you stay ahead in a fast-changing ecommerce world.
We’re proud to be part of a global network of top agencies, always up-to-date with the latest platform best practices and industry insights.
Shopify Insights & Expert Tips
Stay up-to-date with the latest Shopify features, e-commerce trends, and actionable guides, handpicked by our Shopify agency experts to help you launch, optimize, and grow your online store.
Explore resources created by our team to make your Shopify journey smarter and more successful.
Visit our Shopify Blog for more insights.
Frequently Asked Questions About Shopify Agencies
What is a Shopify Agency?
A Shopify Agency is a certified team of experts that help brands build, customise, migrate, and grow online stores on Shopify and Shopify Plus. As an official Shopify Plus Partner agency, MM Shopy Devs handles everything from custom theme design to performance optimisation. Learn more about our Shopify Agency.
Why choose a certified Plus experts?
A certified Shopify Plus Expert gives you access to advanced tools, priority Shopify support, and a team with proven results for high-growth brands. Learn more about our Shopify Plus Partner certification.
Can you work with Shopify 1.0 and 2.0 themes?
Of course! Whether it’s Shopify 1.0 or 2.0, our team of Shopify developers is highly experienced. The only exception would be if the theme was previously modified by someone inexperienced, leading to bugs and issues. However, rest assured that we will still offer you a solution. Check our Shopify theme customisation page for more details.
Can we use our own designers for the UX?
Yes, we don’t have in-house UX designers for this reason. Most of our clients prefer to choose a designer based on their style, so we don’t want to limit them. Our team will work together with your designer, ensuring everything follows Shopify standards and that, as a store owner, you’ll be able to manage everything easily.
How long does it take to launch a Shopify store?
Most standard Shopify store builds take 3–5 weeks from kickoff to launch. More complex or custom projects can vary. We’ll always provide a detailed timeline before starting.
Does your Shopify agency have a minimum project size requirement?
Simply put, we don’t. We understand that not all stores need the same amount of work every month and that sometimes urgent issues arise that can’t wait. The only thing we ask of our clients is to group tasks together during the month to avoid fragmenting the work.
How much does a Shopify project cost?
To provide a quote, we need all the details and a full understanding of the project, whether big or small. This approach reflects our commitment to trustworthiness, as we want to ensure we offer the correct solution to your problem. A few years ago, we wrote an interesting article on this topic, which we suggest you check out here.
Do you charge retainers?
We typically don’t ask for retainer contracts unless that’s what you need.
Do you work with Shopify Plus?
Yes, our team is highly experienced in Shopify Plus development.
Do you provide ongoing support after launch?
Yes, our agency offers ongoing support and maintenance plans. You’ll have direct access to our expert team for continuous improvements, troubleshooting, and growth advice, no ticket queues.
Do you offer marketing or SEO services?
We don’t, and for a good reason. Our agency focuses solely on “Shopify Development.” We firmly believe that specialization leads to better results, and that all-in-one solutions are often less effective. However, we do have a network of highly specialized experts we can recommend!
What regions do you serve?
We are based in Barcelona and London, but we work remotely with brands across Europe, the UK, and internationally.
Where we work
Based in Barcelona and London, MM Shopy Devs partners with brands locally and remotely throughout the UK, Spain, Europe, and worldwide. Whether you’re down the street or across the globe, our team is ready to help your Shopify store grow.
