841 agencies indexed·Latest entry: 13 July 2026
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Industry · 38 agencies

E-commerce agencies.

Ecommerce marketing is the discipline of acquiring, converting and retaining customers for brands selling direct through Shopify, WooCommerce, Magento, BigCommerce or custom storefronts. It is distinct because LTV-to-CAC maths drive every decision, the post-iOS attribution gap forced a measurement rebuild, and the DMCC Act now polices drip pricing and was-now claims with fines of up to 10% of global turnover.

At a glance
  • 38 UK agencies with e-commerce experience
  • Across 17 UK locations
  • Reviewed 18 May 2026
Showing 1-24 of 38 e-commerce agenciesView in full archive
STRINGERSEO Limited logo
STRINGERSEO Limited
Independent·Brighton·2-10 Employees·Verified

We help businesses grow online without the digital jargon. Working alongside business owners and their teams, we build websites and digital experiences that actually work for real users. Our focus? Creating SEO and content approaches that connect UK brands and small to medium businesses with the people they're trying to reach. The online world is crowded and complex. We cut through that noise with

Mass Reach logo
Mass Reach
Independent·London·2-10 Employees·Verified

At Mass Reach, we help ambitious eCommerce and B2B companies turn ad spend into predictable growth. We've partnered with leading global brands to accelerate revenue through Google Ads, Meta Ads and LinkedIn Ads, supported by conversion rate optimisation to maximise ROI. Our work goes beyond campaign management, we build full-funnel growth systems that deliver measurable results, from lower custome

pjm:digital logo
pjm:digital
Independent·Leeds·2-10 Employees·Verified

With a quarter-century of expertise, pjm:digital is a Bradford-based digital agency specialising in eCommerce. As a renowned digital agency in West Yorkshire, our forte is creating effective eCommerce strategies, crafting engaging web designs, and implementing impactful digital marketing techniques. We're proud to be a certified Shopify Partner, bringing unique solutions tailored to UK businesses

5RV Digital logo
5RV Digital
Independent·Birmingham·201-500 Employees·Verified

5RV Digital is a full-service digital marketing firm that focuses on SEO strategies that bring lasting visibility and lead generation. We work with small to medium businesses across sectors to optimise online presence through structured SEO planning, content enhancement, and local visibility improvement. Our team understands what it takes to stand out in Birmingham's competitive digital space. As

Launch Digital logo
Launch Digital
Independent·Glasgow·2-10 Employees·Verified

Launch, a dynamic marketing agency, operates from strategic locations in Glasgow, London, and Ayrshire. What distinguishes Launch is its distinctive blend of imaginative creativity and digital expertise, generating progressive communication strategies whilst proudly maintaining its status as a family-owned enterprise offering a bespoke touch. Providing an extensive array of services, Launch specia

Invanity logo
Invanity
Independent·Oxford·11-50 Employees·Verified

Invanity is the revenue-first marketing agency. That means we refuse to separate marketing from commercial outcomes. Everything we do is built to create desire, capture demand, and bring the repeatable revenue that fuels growth. An ambitious, agile team, we back brands who want more momentum and more return and we go after it with them - curious, driven, and commercially awake.

This is Undefined logo
This is Undefined
Independent·London·2-10 Employees·Verified

We are a London-based digital product studio specialising in building and growing performant websites and digital products.

LION+MASON logo
LION+MASON
Independent·London·2-10 Employees·Verified

LION+MASON is a top-rated, strictly senior-led UK Digital Product Consultancy, specialising exclusively in the design, modernisation, and scaling of complex enterprise products and high-transaction platforms. Operating at the intersection of human-centred design and commercial strategy, the agency partners with global brands such as Johnson & Johnson, Best Western, and Cambridge University Press to drive scalable product growth and measurable business performance. Rejecting the traditional agency pyramid, LION+MASON connects clients directly with seasoned industry veterans and operates a unique, tech-agnostic "Architect Model"—remaining independent of the software engineering build phase to provide completely objective, best-fit technical partnerships without vendor lock-in. Consistently ranked by Clutch as one of the top UX Agencies in the UK and a leading global research firm, LION+MASON eschews traditional sales pitches in favour of a zero-barrier, free "Light Briefing," offering enterprise leaders immediate, expert perspective on how to bridge internal skill gaps, build competitive advantage, and architect market-leading digital products.

Mayfly Internet Marketing logo
Mayfly Internet Marketing
Independent·Liverpool·2-10 Employees·Verified

Established in 2008, Mayfly is a leading digital marketing agency situated in the heart of Liverpool. As a distinguished Google Partner Agency, Mayfly specialises in delivering extensive digital marketing solutions, ranging from tailor-made SEO services, proficient social media management, targeted PPC campaigns, to innovative web design. Our team at Mayfly takes immense pride in ensuring high-quality leads that bring real value to our clients' businesses.

Zinc Digital logo
Zinc Digital
Independent·Northampton·11-50 Employees·Verified

Zinc Digital of Northampton, UK, is a leading full-range digital agency renowned for its distinctive, collaborative method. Their strategic partnership with clients cultivates bespoke designs and plans that amplify each business's unique selling points (USPs), ensuring standout design and potent marketing. Their dedication to providing premium digital solutions is apparent in their extensive servi

BeeBrilliant Marketing logo
BeeBrilliant Marketing
Independent·Chester·2-10 Employees·Verified

BeeBrilliant! is a digital marketing agency dedicated to helping small businesses across the UK strengthen their online presence and grow with confidence. We bring big-business marketing thinking to ambitious SMEs-focused on generating more leads, driving sales, and delivering real, measurable results. With over two decades of combined industry experience, we offer a full suite of digital marketin

Growthack logo
Growthack
Independent·Nottingham·2-10 Employees·Verified

Growthack is an Organic growth agency for eCommerce, SaaS and B2B brands. They help ambitious companies go Beyond SEO® with technical SEO, strategic content, brand authority and integrated paid media designed to win in the AI Search era.

I-COM logo
I-COM
Independent·Manchester·11-50 Employees·Verified

Situated in the bustling centre of Manchester, I-COM is a leading full-service digital marketing agency. Renowned as one of the biggest independent, employee-owned agencies in the area, I-COM sets itself apart by delivering customised and wide-ranging digital marketing strategies in various industries such as B2C and B2B e-commerce, legal, recruitment, among others. Our unique approach amalgamates

Impact Media logo
Impact Media
Independent·Essex·2-10 Employees·Verified

Impact Media® is a leading WordPress agency situated in the UK, delivering tailor-made web design, development, and support specifically for corporate clients. Drawing on more than two decades of industry expertise and a steadfast dedication to WordPress, the agency develops bespoke, user-centric websites that prioritise creative freedom, robust security, SEO optimisation, and scalability.

Blaze Media logo
Blaze Media
Independent·Liverpool·11-50 Employees·Verified

We’re a professional marketing agency built for ambitious businesses across the UK, based in the creative heart of Liverpool’s Baltic Triangle. Whether you’re an e-commerce brand, a SaaS company, or a B2B business looking to dominate search, our team of SEO, PPC, web, design and social media experts turn organic traffic into real, measurable growth.

GA Agency logo
GA Agency
Independent·London·51-200 Employees·Verified

GA Agency is an award-winning digital marketing agency helping brands all over the world grow their business and revenue in the online space. Our strategy and data-driven approach allow us to build an effective tailor-made digital marketing strategy to take your business to the next level.

Distinctly logo
Distinctly
Independent·London·11-50 Employees·Verified

Distinctly, a leading digital marketing agency based in Old Street, London, boasting more than a decade of industry experience. This agency sets itself apart by integrating creative ingenuity with data-driven analysis, fuelling significant growth for brands with ambition.

Assisted logo
Assisted
Independent·Leicester·11-50 Employees·Verified

An award-winning digital marketing agency based in Leicester, we have received multiple accolades and operate branch offices in Leamington Spa and Hemel Hempstead. We pride ourselves on our bespoke, data-informed, and ROI-centric strategies that span across SEO, PPC, social media management, content, digital PR and website development.

The SEO Works logo
The SEO Works
Independent·Sheffield·51-200 Employees·Verified

The SEO Works is a highly respected authority in search marketing, web development, and pay-per-click social services for distinguished brands and thriving SMEs in the UK. With a fifteen-year long track record, this agency remains committed to a single objective: boosting businesses' online customer base. Averse to superficial metrics and irrelevant jargon, The SEO Works takes satisfaction in deli

OmniFound logo
OmniFound
Independent·London·2-10 Employees·Verified

OmniFound is a forward-thinking SEO agency built for the evolving world of digital discovery. Based in London, we specialise in helping brands grow across traditional search, AI-driven engines, and social platforms. Our services cover traditional SEO, AI SEO (GEO), Local SEO and SEO driven web design

Auxano Digital UK logo
Auxano Digital UK
Specialist·Liverpool·2-10 Employees·Verified

Leading SEO and Digital Marketing Agency in United Kingdom.

Colne Digital logo
Colne Digital
Independent·Essex·2-10 Employees·Verified

Colne Digital is a specialist Google Ads and PPC agency based in Colchester, Essex, helping businesses across the UK generate more leads, increase sales and maximise their return on advertising investment.

DeqVision logo
DeqVision
Independent·London·11-50 Employees·Verified

Scale your home ecom brand to £150k a month - and beyond. DeqVision is the all-in-one growth partner built for home & garden online stores. Website, paid ads, email marketing, all with the goal of getting you more revenue.

Digital Landscope logo
Digital Landscope
Independent·Glasgow·2-10 Employees·Verified

Search Engine optimisation, organic search, PPC and project management in the heart of Scotland. We are based in Paisley, just outside Glasgow. We also offer Answer Engine Optimisation (AEO/GEO) services for ChatGPT Search and Google AI Mode! As an SEO consultancy, we have clients of all scales across multiple industries. We specialise in tailored SEO solutions that are reliable and affordable. If

SEO·B2BE-commerceEnergy+4 more industries
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Editor's note
AgencyIndex lists 16 UK agencies positioning themselves as core ecommerce, alongside a much larger pool that takes on ecommerce work as part of broader retail, DTC or performance briefs (see also the Fashion-Retail and Health-Beauty industries). The 16 split into four working shapes: Shopify Plus partners and headless-commerce build-and-grow shops, conversion and CRO specialists, performance-media-only teams running Meta, Google and TikTok at scale, and full-stack ecommerce growth agencies that hold acquisition, lifecycle and analytics on a single retainer. The sector is distinct for four reasons. The LTV-to-CAC ratio is the religion: Shopify itself flags 3:1 as the working floor for a sustainable book, with premium DTC brands targeting 4:1 to 6:1, and most decisions about media mix and creative cadence come back to that number. The post-iOS 14.5 attribution gap forced a rebuild of measurement: browser-pixel coverage collapsed, Meta CAPI and server-side tracking became table stakes, and high-volume brands shifted from platform-reported ROAS to Marketing Efficiency Ratio (total revenue divided by total ad spend) to read truth out of the noise. The Digital Markets, Competition and Consumers Act 2024 came into force on 6 April 2025, banning drip pricing and tightening was-now claims, with the CMA opening its first eight investigations and issuing advisory letters to a further 100 businesses on 18 November 2025. And the maths behind ROAS only works once returns are priced in: fashion ecommerce return rates of 25-40% can turn a 4.0 gross ROAS into a 2.8 net ROAS, before reverse-logistics costs. What is shifting in 2026 is the demand side as well as the measurement side. Retail media networks (Tesco Media, Nectar360, Boots Media Group, Amazon Ads) grew 22.7% year-on-year in 2024 and are forecast above £4bn of UK spend in 2025, drawing budget out of paid social. Google AI Overviews now appear on roughly a quarter of all searches and have cut organic CTR on affected queries by around 60%, pushing GEO and AEO into the SEO scope of work even for transactional product queries. Shopify Plus headless builds are reshaping the stack, with all-in costs landing in the £7,500-£15,000 a month range for a brand at £2m revenue once apps, agency retainer and observability are stacked. Subscription and replenishment mechanics, retention CRM and zero-party data capture are doing more of the work that Meta retargeting used to do.
Common briefs
DTC launch and acquisition build on Shopify Plus or headlessCRO and LTV optimisation programme with a running test calendarPerformance media across Meta, Google and TikTok with CAPI and server-side trackingEmail and SMS lifecycle on Klaviyo, Attentive or equivalentSubscription-commerce growth and replenishment-mechanic designMarketplace and DTC balance across Amazon, eBay and own-siteRetail media network entry across Tesco Media, Nectar360, Boots Media Group and Amazon Ads
Regulatory landscape
CMA · ASA · DMCC Act · ICO
drip pricing and was-now rules now govern every product page

The Digital Markets, Competition and Consumers Act 2024 came into force on 6 April 2025 and rewired the rules. Drip pricing is now banned: total cost including all mandatory fees must be shown at the earliest stage pricing is displayed, with shared liability extending to marketplaces, price-comparison sites and influencers, not just the seller. The CMA can fine up to 10% of global turnover for the most serious breaches and has powers to enforce against overseas traders that target UK consumers. On 18 November 2025 the CMA published its final price transparency guidance, opened its first eight DMCC Act investigations into drip pricing, time-limited offers and default opt-ins, and issued advisory letters to 100 further businesses across sectors including fashion, homeware, and online vouchers. The ASA polices ad-claim accuracy under the CAP Code, with active 2025 rulings against inflated was-now percentages, mystery-box discount maths, and crossed-out reference prices not actually available at booking. The ICO enforces UK GDPR and PECR over data capture, consent and electronic marketing, which sits over every email and SMS lifecycle programme. Fake-review rules under CAP 3.44-3.46 require labelling of incentivised reviews and prohibit suppression of negative ones.

Specialist signals
5 signals
of real ecommerce experience
  • · Platform fluency on Shopify Plus, Magento, BigCommerce or headless, with named launches and a working view on apps, observability and the all-in monthly cost of ownership
  • · Contribution-margin and LTV-to-CAC discipline baked into reporting, not just platform-reported ROAS, with Marketing Efficiency Ratio (MER) as a standard read for high-volume accounts
  • · Post-iOS attribution literacy: Meta CAPI deployed with deduped pixel pairing, server-side GA4, first-party identifiers in events, and an honest view on what platform data can and cannot show
  • · DMCC-Act-aware pricing copy and product-page audit workflow, with a documented process for total-cost display, was-now substantiation and CAP-compliant review handling
  • · CRO discipline with a running test calendar, evidence on hypothesis-to-win rate, and a returns-and-margin-aware ROAS framework that does not pretend a 4.0 gross is a 4.0 net
Sector watch-outs
5 to watch
in any ecommerce pitch
  • · ROAS reported without contribution-margin maths, no returns adjustment, and no MER alongside the platform numbers, especially in fashion and beauty where return rates routinely sit above 25%
  • · Was-now and time-limited-offer copy in the work samples that will not clear the DMCC Act or the CAP Code, with no mention of the 18 November 2025 CMA guidance or the eight live investigations
  • · Drip-pricing patterns left on the product page or in checkout (delivery, booking or service fees only shown at the final step) and no answer on how the team handles total-cost display under the new rules
  • · No post-iOS attribution stack on offer: pixel-only tracking, no CAPI, no server-side, and no view on how to read platform numbers against MER or contribution margin
  • · Weak CRO discipline (no test calendar, no win-rate evidence, no segmentation across mobile and desktop) and no working knowledge of the return-rate impact on net ROAS for the brand's category
Frequently asked

What brands ask about agencies for e-commerce.

5 questions our editors get most often, answered honestly. No agency-marketing speak.

Curated by humans

UK ecommerce retainers cluster in three bands. Boutique CRO and Shopify-build specialists run £3,000-8,000 a month for a focused brief such as conversion optimisation, lifecycle CRM or a single paid channel. Mid-market growth agencies sit at £8,000-15,000 a month for integrated programmes covering paid media, email, CRO and analytics. Full-stack Shopify Plus partners and performance shops working £2m-plus revenue brands land at £7,500-15,000 a month all-in once apps, retainer and observability tooling are stacked, and rise from there as media spend scales. Project work like a Shopify Plus migration, headless rebuild or DTC brand launch is usually scoped separately at £25,000-250,000. Media spend on Meta, Google, TikTok and the retail media networks sits outside the retainer and is almost always the largest line on the plan.