Email Marketing agencies in London.
Email Marketing is the discipline of earning revenue from owned audience data through lifecycle automation, segmentation, and CRM-driven campaigns. In 2026 it sits closer to retention and CRM than to broadcast newsletters, and the make-or-break metric is deliverability: SPF, DKIM, DMARC, and BIMI now decide whether a message reaches the inbox at all. This page shows every agency on AgencyIndex offering email marketing in London.
- 75 UK agencies offering email marketing in London
- Part of the Email Marketing service set
- Indexed in London
- Reviewed 17 May 2026

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

Situated in the heart of Shoreditch, London, Blazon Agency is a distinguished campaign specialist agency. What truly differentiates Blazon is its comprehensive, full-stack methodology, seamlessly incorporating public relations, marketing, and personalised advertising strategy. This unique approach guarantees our clients' products achieve maximum visibility in an increasingly congested market. In a

Established in 1999, Underscore is a cohesive collective of strategic thinkers, collaborating intensively with international partners and clients. We aim to craft engaging brand and digital strategies that captivate attention and achieve critical objectives. Our proficiency lies in attentive listening, strategic planning, and an unswerving focus on putting the "audience first" to ensure brands res

SAGE Marketing provides global B2B marketing and brand management services to global startup companies. We are your CMO as a Service. From converting customer needs into business opportunities to engaging people on-line, off-line, and face-to-face, SAGE tailors the right marketing mix to your stage, budget, and needs. We will scale your brand and business to the next level. SAGE is home to experienced team of marketers, strategists, creatives, and tech enthusiasts who are leading startups to business success! Additionally, we are a HubSpot Diamond Partner, we help many startup and established companies to maximize their marketing & sales impact with HubSpot CRM.

Situated in the heart of London, KOTA is a distinguished creative web design and branding agency. Our steadfast dedication to delivering visually impressive digital experiences sets us apart. We seamlessly integrate aesthetic appeal with a focus on return on investment, ensuring each project we undertake not only enthralls but also generates revenue. Specialising in strategic brand development and

Deep and Unique Services at ELITEHUB Luxury Digital Agency ELITEHUB is a premier luxury digital agency specializing in a wide range of services tailored for high-end brands and affluent individuals. Our offerings encompass various facets of digital marketing and personal services, ensuring that our clients receive comprehensive support in achieving their goals.

The digital results agency with a complete focus on making your online activity work harder than ever before. If the name rings a bell, that's because we're the sibling of creative agency J2. We were born in a world of big ideas but have evolved an unshakeable focus on digital results. From growing brands to driving sales, every campaign is geared to improve the bottom line. We optimise PPC, Paid

Mintense UK is a London-based performance marketing agency with over a decade of experience in multilingual SEO, Google Ads, PPC and social media advertising. Their native-speaker teams cover 16+ languages, delivering tailored digital campaigns that drive visibility, leads and international growth across the UK, Europe and the US.

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.

Launch Studio is a commercially led creative agency using design to make a difference. We work directly with founders, sales and marketing leads to understand your priorities, applying strategic thinking and creative execution so every investment in brand supports clear commercial goals. Our work spans identity systems, websites and campaigns, through to sales enablement, branded materials, print,

Simplicity Media is an award winning advertising agency that specialises in data driven digital marketing. Our aim is to be your competitive advantage; maximising budgets to provide full funnel success, driving awareness, consideration and purchasing intent across (but not limited too) all digital led mediums. Social Media (TikTok, Instagram, Snapchat, Facebook, Reddit, YouTube et al) Paid Search

YellowInk is an SEO and digital marketing agency based in the United Kingdom (UK), dedicated to helping startups and small businesses grow online. We offer tailored services including SEO, content marketing, PPC, email marketing, social media management, social media advertising, website design & development, and LinkedIn marketing. Our focus is on delivering affordable, effective strategies that

HYSCULPT is a forward-thinking marketing agency specialising in the contour industry, setting us apart with our emphasis on crafting clear, unified branding via targeted PR and marketing campaigns. Our core mission is to disrupt the market landscape, capturing the attention of our intended audience. What makes HYSCULPT unique is our cooperative team of innovative thinkers and visionaries who prior

Digital Media Ads, a premier Digital Marketing Agency, is strategically located in the heart of London. Our unique selling proposition is our dedication to levelling the digital playing field by offering top-tier digital marketing solutions, usually exclusive to large tech firms, to small and medium-sized enterprises. We have a proven history of boosting sales and return on investment (ROI) for ou

Doogheno, an esteemed marketing firm operating from London, has earned a reputation for its award-winning services. Currently, Doogheno is broadening its horizons beyond conventional B2B marketing, aiming to provide all-encompassing business support for SMEs. This is achieved by harnessing our internal proficiency and extensive partner network. Our innovative model incorporates playing the role of

Based in the heart of London, Sciart Marketing Limited operates as an ethically-focused, data-led marketing agency. Our unique blend of scientific precision and artistic creativity allows us to deliver a competitive edge to our clients through a tightly integrated ecosystem, underpinned by constant insights and enhancements. Our dedication to swiftly addressing crucial digital infrastructure chall

Sonat Co., a London-based digital marketing agency, is renowned for its customised digital strategies and data-driven proficiency, purposefully crafted to amplify brands' online visibility and deliver extraordinary outcomes. Concentrating on digital media marketing, along with web design and development, Sonat Co. provides innovative solutions to uplift brands and propel businesses towards success

Kas Andz Marketing Group, a distinguished eCommerce agency, holds a prominent position in London, UK, renowned for its award-winning services. Boasting a rich experience of over three decades, our agency is recognised for its unwavering transparency, forward-thinking strategies, and a client-centric approach. We specialise in offering services such as SEO, email marketing, and PPC, all while ensur

Fat Fish Marketing, a Northern Ireland-based digital marketing agency, thrives on its data-driven approach. Renowned for its dedication to not only enhancing organic traffic but also boosting client sales, this brand shines in its speciality services such as search engine optimisation and the creation of SEO-friendly websites. Named among the Top 10 SEO Companies in the UK, Fat Fish Marketing stan

Rozee Digital, a highly-ranked London-based digital marketing agency, excels in delivering bespoke strategies that maximise advertising budgets and reduce customer acquisition expenses, thereby facilitating steady annual business expansion. Our holistic method at Rozee Digital incorporates proficient analytics, precision-targeted ad promotions on various digital platforms, and ongoing optimisation

Kinsman & Co, a London-based all-inclusive marketing agency, is renowned for its extensive range of digital marketing solutions. With specialisation in pioneering video production, strategic social media planning, and effective PPC campaigns, they are the go-to agency for an integrated approach to bolstering your marketing visibility and delivering measurable outcomes. Their proficiency in devisin

Caliston, a leading digital marketing agency situated in the heart of London, champions a unique approach to business growth hacking and website user monetisation. With an impressive track record spanning over 17 years, Caliston has honed its expertise in marketing, design, and development across diverse business sectors in the UK. This top-tier agency stands out, not just for its creative flair a

Studiomade, a London-based strategic design and digital agency, excels in assisting businesses to thrive and launch innovative ventures through their expertise in branding, technology, and digital solutions. The agency's distinct mission sets it apart, demonstrating its ability to pivot and excel in a variety of industries. With a unique approach towards developing trailblazing projects such as us

Design Culture, a renowned digital agency in London, excels in crafting customised web platforms, e-commerce solutions and digital services for organisations with a noble cause. Our unique selling proposition lies in our unwavering dedication towards elevating brand comprehension and simplicity, whilst fuelling conversions. We ensure that digital journeys undertaken by users not only impact their
AgencyIndex tracks 75 email marketing agencies in London. The list above is filtered to that intersection and ordered with verified and featured listings first.
For the wider editor's view on email marketing agencies in the UK, see the email marketing service brief. For context on London's marketing cluster, see the London location brief. The pricing, timeline and red-flag notes below apply to email marketing as a discipline; they do not change materially in London.
Boutique / freelance £300-1,500 · Mid-market £1,500-4,000 · Senior / enterprise £4,000-15,000+. Platform fees (Klaviyo, Braze, ActiveCampaign, HubSpot, Salesforce Marketing Cloud) usually passed through at cost. One-off audits £1,000-5,000.
1-2wk audit and deliverability fixes · 2-4wk first campaigns live · 4-8wk basic automation (welcome, abandoned cart, post-purchase) · 3-6mo credible ROI readout · 6-12mo mature lifecycle programme.
- · Offers to buy, rent, or scrape lists, or to 'warm up' purchased data
- · Treats UK GDPR as 'just add an unsubscribe link' or dismisses PECR for B2B
- · No mention of SPF, DKIM, DMARC, or a deliverability monitoring stack
- · Strategy reduces to 'send more emails' or 'volume fixes deliverability'
- · Reports only on opens and clicks, ignores complaint and bounce rates
- · Cannot show consent logs, suppression workflow, or a data processing agreement
Email Marketing agencies in other cities.
Other services in London.
What brands ask about email marketing agencies.
The 5 questions our editors get most often, answered honestly. These apply to email marketing as a discipline regardless of city.