Shopify Plus
Agency 
ECS® is a leading London Shopify agency delivering exceptional e-commerce solutions. As Shopify experts in London, we specialise in custom design, development and optimisation for ambitious UK brands.
Our proven track record of success and deep technical expertise makes us the trusted Shopify partner for businesses seeking growth.
WHY CHOOSE ECS®
Shopify Experts
As a leading London Shopify agency and across the UK, we bring together world-class designers, developers and strategists focused exclusively on Shopify excellence. Our team of Shopify experts London delivers custom solutions that drive real business growth through strategic planning, technical implementation, and ongoing optimisation.
With over 50+ successful Shopify projects completed, we understand the unique challenges facing e-commerce businesses in competitive markets. Our comprehensive approach includes conversion rate optimisation, performance enhancement, custom app development, and seamless third-party integrations that scale with your business needs.
Looking to join London's top Shopify development team? We're Hiring
The ECS® Difference
What sets us apart as your Shopify development partner is our laser focus on e-commerce success. Whether you're looking to launch, migrate, or optimise your Shopify store, our proven expertise delivers measurable results. We've helped businesses increase their conversion rates by up to 40% and reduce page load times by 60% through our comprehensive optimisation strategies.
Our methodology combines technical excellence with strategic thinking, ensuring every project delivers both immediate impact and long-term scalability. From initial consultation to post-launch support, we provide end-to-end solutions that grow with your business.
01
Technical Excellence
Expert Shopify development with custom liquid templating, advanced theme customisation, headless commerce solutions, and seamless API integrations. We specialise in complex migrations, multi-store setups, and enterprise-level customisations.02
Strategic Growth
Data-driven conversion rate optimisation using advanced analytics, A/B testing, user behaviour analysis, and performance monitoring. Our strategies have consistently delivered 25-40% improvements in key metrics.03
Creative Innovation
Award-winning UX/UI design that balances aesthetic appeal with conversion optimisation. We create mobile-first, accessible designs that perform across all devices and user journeys.04
Dedicated Support
Comprehensive ongoing support including security updates, performance monitoring, feature enhancements, and strategic consultation to ensure your store continues to evolve with market demands.
SHOPIFY Plus Agency
Shopify Plus Agency Partner in London
As Shopify experts in London, we've spent years perfecting the art of e-commerce excellence. Our deep understanding of the platform, combined with extensive experience across diverse industries, enables us to deliver solutions that drive measurable business growth and competitive advantage.
Our London-based team has successfully launched over 200+ Shopify stores, ranging from startup ventures to enterprise-level implementations. We understand the unique challenges of the UK market that are crucial for success.
Whether you're looking for Shopify design, development, migration, or optimisation services, our comprehensive approach combines technical mastery with creative innovation. From custom Shopify Plus development and advanced automation to ongoing performance monitoring and strategic consultation, we're the agency partner that ambitious brands trust for long-term success.
“Excellent experience with ECS®, helping to build and maintain our site along with various custom apps. Especially good at comms and helping to solve and problems if and when they arise.”
“Its been amazing working with you, I can honestly say you are one of the best developers I've worked with.”
“The work that they produced was to a really high standard and I would absolutely recommend them.”
“Thank you for all your support during Black Friday, we have seen some amazing results!”
“Our main objectives were conversions, site speed and mobile UX. These priorities were executed. I would highly recommend to any brand looking to improve their Shopify Plus site.”
“The new site looks fantastic. Orders coming through and everything is running smoothly.”
“I can say with complete confidence that you are placed amongst those individuals who know that there is no finish line. You have done yourself proud, and you have excelled at your chosen craft.”
“A dream to work with, you completely understood the direction we wanted for our new website and delivered quickly and to the highest quality”
“Amazing! You guys will be doing all our future Shopify developments.”
“I was really blown away by the work that ECS® did. Very high quality, with a real focus on flexibility... I would wholeheartedly recommend them.”
“After deploying and with the support of Algolia and partner ECS®, the company saw the benefits 'straight away'”
ECS, it is totally appreciated you are there as others would not be ”
“Very helpful, and quick to respond and deal with the issue I was having. Fantastic. Will be using again!”
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