Best Ecommerce Agencies in the UK
Selling online well needs more than a general web designer - platform choice, checkout flow, product data and marketplace strategy all shape whether people actually buy. Ecommerce agencies specialise in Shopify, Magento, WooCommerce and similar platforms, building stores that handle payments, stock and shipping properly, and often run the ongoing marketing (paid, SEO, email) needed to drive sales once the store is live.
Showing 50 Ecommerce agencies across the UK
TSG Search & Consulting
Dorset
TSG Search & Consulting is a Dorset-based ecommerce SEO consultancy working directly with Shopify and WooCommerce brands on organic search growth, technical SEO and AI search visibility.
GrowWeb
Belfast
GrowWeb is a Belfast performance marketing agency driving growth through Paid AI Advertising (ChatGPT Ads), Google Ads, Paid Social, YouTube and Programmatic across Northern Ireland and the UK. We plan, run and optimise high-converting digital marketing campaigns across Search, Social, Display, Demand Gen, Performance Max (PMax), AI Max, Video, Programmatic and ChatGPT Ads. Every decision is driven by data and focused on one thing: growing your return on ad spend (ROAS).
Stormy Studios
Pelynt
Independent web design studio in Cornwall creating bespoke websites, custom CMS platforms and brand identities for businesses across Cornwall, Devon and the UK.
Castlegate IT
York
Castlegate IT is a web design and development company based at the Bonding Warehouse in York, building and maintaining WordPress sites and bespoke web applications. It supports over 300 websites for clients spanning national charities, academic networks, cultural institutions, manufacturers and public sector organisations.
O'Brien Media
Swindon
O'Brien Media is a website design and support company founded in 2006 and based in Old Town, Swindon. It builds and maintains WordPress and ecommerce websites for small and medium-sized businesses, alongside hosting, support and SEO services.
The PPC People
Colchester
The PPC People is a Colchester-based Google Partner agency specialising purely in paid search (Google Ads, Shopping, Performance Max and Microsoft Ads), with no long-term contracts.
Versantus
Oxford
Versantus is an Oxford digital agency specialising in Drupal, building websites, web applications and digital products for universities, charities, care providers and membership organisations.
Dundee Web Design
Dundee
Dundee Web Design is the trading name of Ossian Media Ltd, operating since 2012 from Wellgrove Street in Dundee. It builds WordPress, Shopify, Squarespace and bespoke websites, backed by SEO, eCommerce development and UK-based managed hosting.
Strawberry
Hull
Strawberry (We Are Strawberry Ltd) is an ecommerce consultancy and agency founded in 1993, operating from Cherry Tree Court, 36 Ferensway in Hull. A Shopify and BigCommerce partner and certified Google Partner, it advises on platform strategy, delivers migrations and builds, and runs growth programmes spanning SEO, paid media, CRO and email.
UQ Web Design
Wrexham
UQ Web Design Ltd is a web design and development company founded in 2005, based at Mynydd Isa between Mold and Wrexham. It has built more than 400 websites, from brochure sites to content-managed and ecommerce stores, alongside graphic design, print, hosting, photography and video services.
Urban River
Sunderland
Urban River is a fully integrated creative and digital agency established in 2002, based at the Quadrus Centre in Boldon on the edge of Sunderland. It creates goal-driven websites, ecommerce stores, branding and digital marketing campaigns for clients across Wearside and the North East.
AYKO
Leeds
AYKO is a Leeds-based eCommerce agency working with Silverfish, CPL Distribution and Wynnstay Group.
All 50 Ecommerce Agencies
What is Ecommerce?
Ecommerce agencies focus specifically on online stores rather than general websites, covering platform selection and build (Shopify and Shopify Plus, Magento/Adobe Commerce, WooCommerce, BigCommerce), product catalogue structure, checkout and payment gateway setup (Stripe, PayPal, Klarna), and integrations with stock, fulfilment and accounting systems. Many also run marketplace strategy - listing and optimising products on Amazon, eBay or Etsy, managing Amazon Advertising, and handling the different rules each marketplace imposes. Beyond the build, ecommerce agencies often run conversion-focused work unique to online retail: cart abandonment recovery, product page optimisation, merchandising and cross-sell logic, and channel marketing (Google Shopping, paid social) aimed specifically at driving transactions rather than general brand awareness.
Why Hire a Ecommerce Agency?
- Platform expertise in Shopify Plus, Magento/Adobe Commerce or WooCommerce, not a generic CMS build
- Checkout and payment gateway setup handled properly, including Klarna, Apple Pay and multi-currency where relevant
- Marketplace strategy and listing optimisation for Amazon, eBay or Etsy alongside your own store
- Product catalogue and merchandising structure built for browsing and cross-sell, not just a product list
- Integration with stock, fulfilment, ERP or accounting systems so the store isn't a manual data silo
- Ecommerce-specific marketing (Google Shopping feeds, cart abandonment flows, product-level SEO)
Frequently Asked Questions
How much does an ecommerce website cost in the UK?
A straightforward Shopify store build typically costs £3,000-£10,000. More complex builds with custom functionality, third-party integrations or Shopify Plus start around £15,000 and can reach £50,000+ for large catalogues or bespoke checkout requirements. Magento/Adobe Commerce builds tend to start higher, from £20,000, given the platform's complexity. Ongoing ecommerce marketing retainers (Google Shopping, paid social, CRO) typically run £1,500-£6,000 a month on top of the build.
Should I choose Shopify, Magento or WooCommerce?
Shopify suits most small-to-mid sized retailers wanting a fast, reliable build with lower ongoing maintenance. WooCommerce is a reasonable budget option if you're already invested in WordPress. Magento (Adobe Commerce) generally makes sense for larger, more complex catalogues or B2B/B2C hybrid stores needing deep customisation, but it costs more to build and maintain. A good ecommerce agency should ask about catalogue size, growth plans and integrations before recommending a platform, not push whichever one they're set up to build.
How long does an ecommerce build take?
A standard Shopify store typically takes 6-10 weeks from kick-off to launch. More complex builds with custom integrations, large product catalogues or marketplace connections can run 3-6 months. Migrating from an existing platform (say WooCommerce to Shopify Plus) usually adds time for data migration and testing, so build in extra weeks for stock, order history and SEO redirects to be handled properly.
Do I need a separate agency for Amazon and my own website?
Not necessarily - many ecommerce agencies handle both, but marketplace work (Amazon SEO, Amazon Advertising, listing compliance) is a genuinely different skillset from running your own store, so check the agency has specific marketplace experience rather than treating it as an afterthought. Some businesses do use a specialist Amazon agency alongside a separate one for their own site, particularly once Amazon becomes a significant revenue channel.
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