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

Situated in the heart of London, V8 Digital has been a leading digital marketing agency since 2002, offering nearly two decades of unrivalled expertise in the digital realm. Our commitment to delivering bespoke marketing solutions that yield impressive ROI results has remained unwavering, constantly surpassing client expectations while respecting their specific needs and budgetary limitations. Pri

Rise - Growth Marketing Collective, a distinctive agency based in London, specialises in presenting a flexible and transparent substitute to conventional growth marketing agencies. Stand-out attributes include Rise's holistic strategy that merges the strategic acumen of a consultancy with the practical efficiency of an outsourced marketing team. This approach delivers customised, effective growth

As a leading marketing agency in London, Digital Aesthetics excels in amplifying brand presence within the health, aesthetics, and beauty sectors. Boasting over 17 years of industry expertise, they provide a bespoke approach to marketing strategy, enhancing both brand awareness and client bookings for aesthetic clinics. Their all-inclusive services comprise SEO, PPC, social media marketing, and we

Brandwidth, a leading digital agency, operates from two major hubs, London and New York. Expert in catapulting the digital customer journey for aspirational brands, Brandwidth offers an all-encompassing array of services. These comprise strategic consulting, experience design, technological engineering, data-driven strategies, dynamic content creation, and fostering digital skills. What makes Bran

AND THE NEW, a renowned digital marketing agency located in the heart of London, specialises in the sports, entertainment, and gaming sectors. Recognised for its proficiency in crafting campaigns that not only captivate and engage but also effectively convert, the agency adopts a holistic strategy encompassing content planning, production, social media management, and digital asset creation. Estee

Elevate Your Business with Top-Notch Digital Marketing Services from a Premier London Agency Q-Online shines as a performance-driven digital marketing firm rooted in Croydon, known for its unparalleled proficiency and experience. This agency champions professionalism, approachability, and sheer transparency in its dealings with clients. If you're in pursuit of tangible, influential, and long-last

As a distinctive creative agency, Series Eight thrives in the heart of London. Famed for its exceptional talent in crafting unique brand identities, building cutting-edge websites, and devising growth strategies, Series Eight stands in a league of its own. Its unique approach merges creativity with functionality, ensuring that its output is not only visually striking but also effectively drives co

SmallGiants, a London-based, comprehensive brand evolution and digital marketing agency, excels in crafting sturdy brand, marketing, and tech infrastructures that foster business growth and expansion. Uniquely, they offer services including full-funnel lead generation, data management frameworks, and vibrant brand identity development. Their acclaimed methodology is guided by insightful data, aimi

Known for its cutting-edge web design and digital marketing solutions, KD Web is a comprehensive digital agency headquartered in the heart of London. What truly distinguishes KD Web is its all-encompassing methodology, seamlessly merging web design, progressive development, and tactical marketing to forge powerful and effective digital journeys. With a solid track record spanning over a quarter of

The Being Group excels as a strategic consultancy and creative agency headquartered in Sydney. Distinguished by a broad spectrum of services such as strategic consultancy, video production, marketing, branding, learning and development, and web design, the brand stands out. Guided by authenticity, ethical principles, and collaborative problem-solving, it delivers these services. By merging profoun

Based in London, Byter is a digital marketing and social media agency, renowned for empowering businesses to harness the power of social media and advertising for enhanced audience reach and sales growth. Byter's unique selling proposition lies in its comprehensive, all-encompassing approach to social media marketing, offering a seamless, single-point-of-contact service for everything from content

STAXO, a London-based web design and development agency, is renowned for its inventive approach to addressing complex technical issues. As an award-winning agency, STAXO stands out with its all-encompassing digital service offering that includes branding, UX/UI design, development, hosting, and round-the-clock support. This ensures the delivery of secure, captivating digital experiences. STAXO is

Somebody Digital excels in transforming data into powerful business results. Our main focus is on boosting ROI by crafting inventive solutions combined with strategic approaches to improve revenue outcomes. Boasting a team of ex-in-house and agency experts, Somebody Digital is uniquely positioned to act as a trusted and collaborative partner for clients. From PPC and SEO to social media, PR, conte

Justified Studio, a comprehensive creative agency nestled in the heart of London, prides itself on fostering partnerships with forward-thinking, purpose-driven organisations. Their specialty lies in fuelling dynamic growth by seamlessly blending brand strategy, visual identity, and digital product design services. The distinctive edge of Justified Studio is their unwavering commitment to crafting

ConsultMyApp, a premier app marketing agency situated in the heart of London, UK, differentiates itself with an all-encompassing approach to mobile marketing. This approach takes into account the complete app user journey, encompassing App Store Optimisation (ASO), Paid Acquisition, and Customer Engagement, all underpinned by robust BI and Data Analytics, innovative Creative Design, and strategic

Complex Creative, an all-encompassing creative agency in London, excels in promoting digital sustainability and assisting clients to reduce their digital carbon emissions. Their distinguishing attributes include a genuine commitment to transparency and authenticity, eschewing industry norms of inflated promises and deficient delivery. Instead, their focus is on crafting high-performance, low-carbo

Established in 2006, Netpeak is a leading digital marketing agency in London, UK. Our broad spectrum of services, encompassing SEO, social media marketing, conversion rate optimisation, and mobile app marketing, sets us apart. We employ a data-driven methodology to substantially boost our clients' revenue. At Netpeak, we prioritise process automation and transparency, underpinned by our unique m

Situated in the heart of London, Sweans proudly positions itself as a premier web design and eCommerce agency, celebrating over 16 years of industry expertise. Specialising in WordPress, Shopify, and bespoke eCommerce solutions, Sweans is committed to elevating Direct-to-Consumer (D2C) brands. With a global portfolio of more than 3,000 fulfilled clients, Sweans takes immense pride in delivering cu

Based in the heart of London, Cremarc is a premier B2B digital marketing agency with a primary focus on the technology industry. Renowned for their distinctive blend of strategic planning, innovative thinking, and data-inspired insights, Cremarc delivers powerful marketing solutions to help tech businesses rise above their competitors and optimise their return on investment. By employing cutting-e

Cude Design, a Surrey-based strategic and creative web design agency in the UK, distinguishes itself through its UX-focused web design and development methodology. Their unique approach guarantees enhanced user conversion and engagement for clients across diverse sectors. Leveraging their expertise from launching and successfully exiting their own eCommerce business, Cude Design crafts efficient e

Catch, a London-based digital agency, is recognised for its proficiency in crafting superior digital experience platforms. This standout agency specialises in an all-encompassing range of services, including digital strategy, experience design, technology, and performance optimisation. Emphasising its dedication to accessibility and inclusion, Catch boasts team members such as Ann Pilbeam, who ard

As a leading content marketing agency, Dialogue is strategically located in Norwich and London. With an illustrious legacy of over three decades, we're celebrated for our award-winning narratives. Our speciality lies in developing engaging content strategies and solutions across both digital and print mediums. We cater to diverse sectors, including luxury, automotive, hospitality, and travel. Dial

Situated in the heart of London, Sapience Communications stands as a leading communication agency. Offering an extensive array of services such as B2B lead generation, crisis communication, and digital marketing, it caters to a broad spectrum of industries, from fintech and healthcare to sustainability. Their distinctive methodology merges strategic acumen with data-driven insights to formulate cu

Blue Train Marketing, a UK-based marketing agency, excels in the fintech and payments sector. Our distinguishing factor lies in our commitment to bolster both domestic and global clients' business growth through all-encompassing services. These include branding, content production, and lead acquisition. By integrating strategic storytelling with potent marketing strategies, Blue Train Marketing en
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.