Top Shopify Agencies in the UK

Choosing the right Shopify Agency can make or break the growth trajectory for your ecommerce business.

With ecommerce continuing to grow at pace, more brands are turning to Shopify to power their online stores. Shopify offers flexibility, scalability and an ever-expanding ecosystem, making it easy to launch. However, building a high-performing store that actually drives revenue is a different challenge entirely.

This is where choosing the right Shopify agency comes in. A great Shopify agency doesn't just build your store, they help you scale it, whether that's through design, development, optimisation or ecommerce growth strategies.

What is a Shopify Agency?

A Shopify Agency is a specialised team of Shopify experts — including designers, developers, and ecommerce marketing experts — who build, customise, manage and scale online stores specifically on the Shopify platform.

If you see an agency referring to themselves as a Shopify Agency, that likely means that they're a registered Shopify Partner, meaning they are vetted to ensure they can provide high-quality services, such as store set up, theme customisation, and app development.

Many Shopify agencies operate as a full ecommerce services agency, going beyond just building a site to include design, ecommerce marketing, and conversion rate optimisation, enabling long-term success.

What are the Tiers of Shopify agencies?

In December of 2024, Shopify expanded their partner ecosystem to four distinct partner tiers - recognising that different Shopify partners were delivering different levels of service to ecommerce businesses around the world.

The four tiers of Shopify Partner are:

Shopify Select Partner: These are partners who have demonstrated expertise with small and medium sized businesses.

Shopify Plus Partner: These are partners who have demonstrated expertise with medium and large sized businesses. If you're searching for a Shopify Plus agency, this tier and above is your starting point.

Shopify Premier Partner: This is an exclusive tier for high-performing Shopify Partners, who have demonstrated expertise with medium, large, and enterprise level businesses.

Shopify Platinum Partner: This is the top tier of Shopify Partners, who are reserved for global enterprise level businesses and receive global recognition.

The tier of Shopify Agency partner should not be a major driver for you making your decision, as it does not foretell whether a partner will be the best fit for your business. For example, if you are a medium sized business, a platinum partner may be outside of your price range. Equally, an enterprise level business would not be best positioned to partner with a Shopify Select Partner, as they likely don't have the resource to deliver the scale of project.

In this guide, we'll look at the top Shopify agencies in the UK — from Shopify website builders to full-service ecommerce digital marketing agencies — based on their services, capabilities, and expertise.

#1 Cake Agency

Location: Birmingham, United Kingdom

Partner Tier: Shopify Premier Partner

Overview

Cake Agency is the ecommerce agency with retail thinking baked in. Cake Agency is a full-service ecommerce agency specialising in Shopify development and ecommerce business consultancy. With a deep understanding of the challenges ecommerce businesses face, Cake Agency takes an integrated approach to drive growth and empower brands online. Cake Agency is a Shopify Premier Partner, so they work closely with mid-market and large businesses to build scalable, high-performing online stores.

Equally, they're recognised as a Google, Meta, TikTok Shop, and Meta partner — making them a well-rounded ecommerce advertising agency as well as a Shopify development specialist. This dual focus on Shopify development and performance marketing lets Cake Agency work with brands over the long term and incrementally increase their value.

Expertise Highlights

• Have managed complex Shopify migration projects for brands on Magento, BigCommerce, and even custom-built ecommerce platforms.
• Helped Killstar grow its presence in the EU through performance marketing
• Have built Shopify Sites for fashion industry icons like P&Co, Luke 1977, &Sons and more.
• Built bespoke web functionalities for brands like SNUZ and Thomas Farthing

Core Services

• Shopify Plus Store Development & Customisation
• Ecommerce Strategy & Analytics
• Mobile Apps
• Site Performance Optimisation
• SEO & Performance Marketing
• Conversion Rate Optimisation

USPs

• Ecommerce consultancy with bespoke reporting tools to empower merchants
• Founded by retailers. Cake Agency was founded by the former owner of Cloggs.com and one of the co-founders of Harper and Lewis, meaning the team has loads of experience working with successful ecommerce brands.
• Have been in business since 2016 and have been a Shopify partner since 2021, so we have a lot of experience serving Shopify businesses.

#2 WIRO

Location: Fully remote agency

Partner Tier: Shopify Premier Partner

Overview

WIRO is a multi-award-winning ecommerce digital agency specialising in Shopify Plus for ambitious home and lifestyle brands. With over a decade of experience and a track record of empowering 500+ DTC brands, they specialise in performance optimisations, custom functionality, and internationalisation for Shopify Plus Stores.

Expertise Highlights

• Rebuilt DripModa's Shopify architecture from the ground up, fixing bundle logic, removing technical debt, and improving overall performance to enable scalable growth.
• Elevated WatchHouse's Shopify Plus store with award-winning navigation, enhanced subscriptions, a personalised coffee builder, and an improved quiz experience for their customers.
• Rebuilt Kick Game's Shopify Plus store with faster UX, modular design, smart navigation, and CRO-driven features, positioning the sneaker resale brand for scalable long-term growth.

Core Services

• Auditing + Discovery
• Ecommerce Growth + CRO
• Shopify Development
• Replatforms + Migrations
• Technical Integrations

USPs

• Wiro aims to demystify the complexities of online selling, making it accessible and efficient for brands of all sizes.
• Their Shopify specialists ensure that brands get the best out of Shopify.
• Driven by data-led decisions, they ensure brands grow based on insights and not just instincts.

#3 By Association Only (BAO)

Location: Cambridge, United Kingdom 

Partner Tier: Shopify Platinum Partner

Overview

By Association Only is a specialist e commerce agency focused on delivering high-impact, high-value Shopify experiences for ambitious online merchants working in premium sectors. The agency has built a strong reputation working at the intersection of creativity and ecommerce, producing award-winning work for some of the most recognisable brands in the fashion, luxury, and lifestyle sectors.

Expertise Highlights

• Delivered an award-winning design overhaul for luxury sneaker brand P448, which went on to win the 2025 Shopify Build Award and earn a nomination for Awwwards Ecommerce Site of the Year.
• Partnered with Vogue to consolidate eight separate Shopify stores into one unified global Shopify Plus store, managing the full complexity of a large-scale international consolidation project.
• Completed Magento to Shopify 2.0 migrations for a string of premium fashion brands, including Sunspel, Self-Portrait, and Astrid & Miyu, handling both the technical migration and UX redesign for each.

Core Services

• UI/UX Design
• Web Development
• Replatforming
• Data Migration
• Ecommerce Strategy
• CRO
• SEO

USPs

• The world's most design-led Shopify Plus Platinum Agency
• By Association Only specialise in luxury and premium brands that are designer-conscious
• They pride themselves on their team's development skills, with extensive back-end experience

#4 Rainy City Agency

Location: Manchester, United Kingdom 

Partner Tier: Shopify Platinum Partner

Overview

Rainy City Agency is a full-service Shopify agency and a well-regarded ecommerce agency option for brands looking to launch, replatform, and scale on Shopify. They've built a strong reputation for delivering results across a wide range of sectors and brand sizes, from fast-growing DTC startups through to established retail names looking to level up their digital presence.

Expertise Highlights

• Partnered with BargainMax, Decalys, and MyCubeSafe to migrate their stores to Shopify, managing the full replatforming process from discovery through to launch for each brand.
• Migrated La Fromagerie from Squarespace to Shopify, successfully uploading 1,000+ products and building out a complex shipping setup alongside subscriptions, reviews, and a loyalty programme.
• Redesigned and rebuilt stores for brands including The Good Wine Shop, Fushi Wellbeing, and South Beach, with a focus on improving navigation, brand identity, and conversion across each project.

Core Services

• Bespoke Shopify design & development
• Shopify migrations
• Meta ad management
• Conversion rate optimisation

USPs

• They provide end-to-end strategies covering design, development, CRO, and paid media — the kind of data-driven, full-funnel approach you'd expect from a leading ecommerce marketing agency.
• Rainy City is a big believer in honest communication and partnership culture.
• The first female-founded Shopify agency in Europe.

#5 Underwaterpistol

Location: London, United Kingdom ‍

Partner Tier: Shopify Premier Partner

Overview

Underwaterpistol is an ecommerce marketing agency that has a notably long history, in 2006 they built the 90th Shopify store in the world, making them one of the earliest Shopify agencies. Over 20 years, they've been designing, building and optimising ecommerce brands, completing 200+ projects for industry-leading clients from luxury fashion to food and drink.

Expertise Highlights

• Migrated BrewDog from Magento to Shopify Plus, supercharging their online presence and unlocking the conversion-driving features their previous setup couldn't support.
• Built Yimbly, Reach PLC's ambitious multi-vendor marketplace from the ground up, pioneering a cutting-edge integration between Mirakl and Shopify, as well as developing the brand from scratch.
• Designed and built Omaze's UK Shopify Plus store, pushing the boundaries of the platform to integrate complex prize-draw mechanics, a dynamic queuing system, and a legally-compliant database infrastructure to support their charitable prize draws.

Core Services

• Shopify Development
• Design
• Shopify Plus Migrations
• UX
• Conversion rate optimisation
• Branding
• SEO

USPs

• 100% in-house team, everything from design and development to SEO and content is handled internally, with no outsourcing.
• Data-driven and passion-fuelled, they combine creative vision with technical expertise to create Shopify Plus stores that convert.
• Underwaterpistol combines data-led CRO, UX research, and SEO alongside design and development, positioning themselves as a growth partner rather than just a Shopify development agency.

#6 Juno Ecommerce

Location: London, United Kingdom

Partner Tier: Shopify Premier Partner

Overview

Juno Ecommerce is an award-winning, insight-driven Shopify ecommerce marketing agency, specialising in bespoke website builds and design-centric solutions. They've helped ambitious brands around the world turn their vision into reality, offering expert support, strategy, and insights to fuel ongoing growth.

Expertise Highlights

• Partnered with Remi Cachet to build a bespoke B2B Shopify Plus platform, complete with trade login, tiered pricing, and personalised content for professional stylists, resulting in a significant uplift in total sales.
• Redesigned core web pages for ICONIC London, implementing a new customer journey to improve the overall shopping experience for the vegan makeup brand's growing customer base.
• Built Herman Miller's ten brand new international Shopify Plus gaming stores across the UK, France, Germany, Netherlands, Spain, Italy, Belgium, Japan, China, and South Korea - launching a full global commerce operation from scratch.

Core Services

• UI/UX Design
• Ongoing Support
• Shopify Development
• Marketing Support

USPs

• Juno's mission is to support and build fruitful relationships based on trust and growth. They strive to deliver excellence and exceed expectations with tailored and profitable ecommerce solutions.
• Founded in 2006, Juno became an official Magento partner in 2009 and then a Shopify Plus partner in 2016, meaning they bring a unique cross-platform migration experience.
• They offer a dedicated CommerceOps service covering security and compliance to appeal to more regulated clients.

#7 EcomOne

Location: Lincoln, United Kingdom 

Partner Tier: Shopify Plus Partner

Overview

EcomOne is an ecommerce agency that builds brand visibility across every searchable platform, across Shopify, Magento, Commerce, and custom builds. The agency exists to reduce the uncertainty and stress of business owners, ecommerce and digital marketing managers across the UK. As a dedicated digital marketing agency ecommerce businesses rely on, they specialise in pay-per-click campaigns, search engine optimisation, email marketing, and digital PR.

Expertise Highlights

• Have driven significant growth through a combination of Google Ads, Shopping campaigns, and SEO for brands like Bushwear, Heinnie Haynes, and Rimmer Bros.
• Supported Splash About through a complex multi-site migration from Magento across their UK, EU and US stores to Shopify.
• Have delivered Creative Digital PR campaigns for brands like Locks Direct, using data-led storytelling.

Core Services

• PPC
• SEO
• Email marketing
• Digital PR

USPs

• EcomOne provide support for a multitude of platforms including Shopify, Magento, and custom ecommerce builds.
• They build brand visibility across every searchable platform, including optimising for AI-powered search.

#8 Radiant

Location: Birmingham, United Kingdom & Dubai, United Arab Emirates

‍Partner Tier: Shopify Plus Partner

Overview

Radiant is a Shopify Plus partner and ecommerce agency that specialises in designing, developing, and optimising Shopify stores for affordable luxury brands. Their services cover UX/UI design, custom theme development, and app development through to replatforming, data migration, SEO, site speed optimisation, and ongoing support.

Expertise Highlights

• Built and developed Shopify Plus stores for well-known beauty and skincare brands, including Tropic Skincare, Pai Skincare, KAYALI fragrances, and Soho Skin.
• Migrated Muru Jewellery from Visualsoft to Shopify, and have built stores for jewellery brands including Edge of Ember and Rocksbox.
• Built the Shopify store for Lando Norris' official merch brand, and have worked with globally recognised consumer names including Godiva Chocolates, VOSS Water, BOL Foods, and FIGS.

Core Services

• Website design + build
• Development Support
• Ongoing Success Support

USPs

• Radiant offer their own custom Shopify app development.
• Beyond project work, Radiant offers a dedicated retained partnership service focused on continuous growth, optimisation and strategy.
• They run the DTC Journey podcast, featuring thought leaders from some of the world's leading DTC brands, including New Era Cap.

#9 Unified

Location: London, United Kingdom ‍

Partner Tier: Shopify Premier Partner

Overview

Unified is an ecommerce agency specialising in Shopify, Adobe Commerce, and customer solutions for premium DTC and B2B brands. At the end of 2022, two agencies, LogicSpot and Diligent Commerce, combined to form Unified, bringing together two groups of experts with experience spanning strategy, design, tech, marketing, and growth, together under one roof.

Expertise Highlights

• Migrated The Conran Shop and House of Hackney from legacy platforms to Shopify Plus, with both projects winning Best Ecommerce Re-platform at industry awards in consecutive years.
• Built a complex B2B Magento platform with Hyvä for Fixfast, a technical fixings brand, including a bespoke product calculator to reduce order complexities for trade customers.
• Have worked with premium British brands including Boodles jewellers, Tom Dixon, Johnstons of Elgin, Ally Capellino, Charbonnel et Walker, and Partridge Jewellers across Shopify Plus and Adobe Commerce builds.

Core Services

• Design + UX
• Strategy + Support
• Development + Migration
• Consultancy + Digital Marketing

USPs

• Unified has a breadth of experience across multiple platforms, including Shopify, Adobe Commerce, BigCommerce, Hyvä, and others — a genuine advantage in the agency ecommerce space, allowing them to advise on the platform best suited to each brand.
• Client retention is one of their key agency metrics; they value a long-term partnership model over project-based work.
• Unified has extensive experience delivering B2B ecommerce for brands like Fixfast and Tom Dixon, including complex product calculators, trade login systems, and Akeneo PIM integrations.

#10 Superco

Location: London, United Kingdom & Birmingham, United Kingdom

Partner Tier: Shopify Platinum Partner

Overview

Superco is an ecommerce marketing agency that is focused on delivering exceptional customer experiences for high-growth brands. They position themselves as customer experience specialists for Shopify Plus brands, with services spanning UX design, Shopify development, growth and optimisation, CRM, and full ecommerce management.

Expertise Highlights

• Migrated Allbirds' Canadian and South Korean stores from a headless setup to native Shopify 2.0, delivering localised design and setting both territories up with Shopify POS to support retail operations.
• Rebuilt Puresport's entire Shopify Plus store, including a dedicated community section - combining content, events, and membership.
• Partnered with skincare brand Ursa Major to improve customer retention. This was achieved by migrating them to Recharge and using subscription, subscription cancellation, and cohort data to drive an increase in active subscribers.

Core Services

• UX Design and Creative
• Website Development
• Customer Experience Strategy
• Growth Services
• Ecommerce Management

USPs

• Superco positions itself specifically as a team of customer experience specialists - working across strategy, CRO, retention, and CRM.
• They host their own events, including Grow Beauty and Grow Wellness, building a community around the wellness and beauty brands they serve.

How Do I Choose the Right Shopify Agency for My Business?

Choosing the right Shopify agency isn't just about who has the best portfolio - although that is important. You need to find a partner who aligns with your brand. Here are the key factors to consider while making your decision.

Start With Your Business Stage

Not all agencies are built for the same type of client. Whether you're searching for the best ecommerce marketing agency for growth or a niche Shopify specialist, if you're a startup, your needs will drastically differ from those of an established brand. Choosing an agency that regularly works with businesses at your stage will lead to better outcomes from the outset.

Define your Primary Goal

Before approaching an ecommerce agency, be clear on what success looks like for you. Are you looking to:

• Launch a new Shopify store?
• Migrate from another platform?
• Improve conversion rates?
• Scale through performance marketing?
• Expand internationally?

Different agencies have different strengths and specialisms. The clearer your goal, the easier it'll be to find the right fit.

Check that the Agency has Relevant Experience

A strong portfolio is important, but so is relevance. When comparing your shortlist, spending time on each ecommerce agency website will give you a strong sense of their design sensibility and areas of expertise.

Look for agencies that have experience with:

• Businesses of a similar size
• Comparable project types
• Your industry

Case studies should clearly demonstrate what was delivered, but also the impact the work had. The best agencies can show measurable results and attractive designs.

Check the Agency’s Platform Expertise and Certifications

Shopify Partner tiers (such as Plus, Premier, or Platinum) can be a useful indicator of an agency's experience and relationship with Shopify.

While they shouldn't be the only deciding factor, these certifications often reflect access to additional platform support and a deeper understanding of Shopify's capabilities.

Location

It may seem like a minor point, especially in our remote-working-friendly world, but the location of your Shopify agency, can be a major factor in your final decision. 

If communication is majorly important to you, and you plan on having a close-knit working, then choosing a Shopify  agency close to you is key too. In the UK, most Shopify agencies are based in major cities, and will often work with the businesses in those cities too. For example, the Birmingham-based Cake Agency works with fashion brand P&Co, who are also based in birmingham’s Jewellery Quarter.

Conclusion

Ultimately, there isn't a one-size-fits-all 'best' Shopify agency, only the one that's right for you. Taking the time to evaluate your options will pay off not just in the quality of your store but in your ability to scale it over time.

If you'd be interested in working with an ecommerce agency that can give you the best of both creative and strategy, contact us - we'd love to hear from you.

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