Klaviyo Platinum Master Partner
email marketing agency for D2C brands

Boost your email performance by 175%

As a Klaviyo Platinum Master Partner, we've spent more than a decade helping D2C brands transform email, SMS and customer data into fully connected retention and revenue channels.

LET’S GET STARTED

Full CRM Audit

Uncover key insights into your performance, strategy, setup, and industry benchmarks to refine your strategy for maximum impact.

Email Marketing Segmentation

Precise email marketing segmentation to help you attract high-quality subscribers and send more relevant messages.

Lifecycle Marketing

We create a data-led lifecycle strategy around real customer behaviour that drives engagement, retention, and lifetime value.

Email Marketing Flows

High-converting email flows that guide every customer through their lifecycle, from welcome series and abandoned carts to post-purchase and winback.

Email Marketing Analytics

We’ll help you move beyond surface-level reporting and build an ever-improving email programme that’s informed by your own data.

Email Marketing Management

We plan, create, and execute retention-focused email strategies aligned with your audiences, brand calendar, and commercial goals.

ESP Set up & Account Management

From ESP setup and migration to CRM integrations, flows, campaigns and reporting, we manage your account so you can focus on your store.

SMS & WhatsApp Marketing

We build a connected mobile strategy around your business and retention goals, from segmentation and automation to ongoing optimisation.

From revenue to retention

We work across the full retention setup through email, SMS, WhatsApp, and loyalty, bringing strategy, campaigns, flows, segmentation, and reporting together to build customer journeys that improve repeat purchase rates.

Results that speak

Our Klaviyo retention strategies have helped leading ecommerce brands generate significant growth through lifecycle automation, campaign management and customer segmentation.

Average account growth

175%

Revenue generated last year

£33.4M

350%

ROI

Klaviyo Platinum Partner trusted by leading D2C brands

REFY

“Melusine Studio have supported us from both a creative and technical perspective, to help to bring our CRM strategy to life. The team are incredibly professional, knowledgeable, proactive in approach and a pleasure to work with. Together we have delivered on a number of key projects, contributing to channel performance and overall growth. We look forward to continuing to improve and optimise alongside Melusine and the team.''

Faye Lindfield, Senior CRM/CX Manager | REFY
ninepine

“Melusine Studio has completely transformed our email game. Not only by creating great newsletters and flows but in being a business partner that genuinely cares about how we perform. We brainstorm ideas with the team and tailor our approach together to best plan for our particular business model and drive the best possible results. For us, they aren't just an agency - we consider them part of our team!”
Kousha Torabi, Co-founder | ninepine
Daniel Wellington

"We started working with Melusine Studio after their audit of our Klaviyo account. They came with smart, data-driven ideas to improve our CRM — based on analytics and experience with other brands, and we quickly decided to bring them on board. The team is responsive, always on time, and great at adapting to our specific setup. From journey strategy to copy and visuals for emails and SMS, they consistently deliver quality work. I’d recommend Melusine Studio to any brand looking for a reliable and strategic Klaviyo partner who brings both structure and creativity to the table."
Julia Shamsutdinova, CRM Manager | Daniel Wellington
Grown Alchemist

"We got Melusine Studio on board with a clear objective and in a matter of months, they helped us achieve it. Our CRM channel has significantly improved most of it's metrics during this time. From a technical point of view, the team is very strong and didn’t just meet expectations with existing challenges and asks, but brought new opportunities to the table. We also partnered with them on a creative and strategic point of view and they showed up as experts in the field. It's a pleasure to work with Melusine and their team, I see them as partners and would thoroughly recommend working with them."
Maddy Booker-Price, Global Digital Director | Grown Alchemist
Real Science Athletics

"Melusine Studio are a breath of fresh air. They’ve helped us increase turnover by +45% in the last year by building out a number of automated flows and 8 campaigns per month. They’re true professionals and great to work with. It’s been a very hands off process which is extremely helpful as my team and I are busy working on other areas of the business. Every month they find new ways of optimising the emails, pop-ups and other areas of our Klaviyo account. I feel confident they’re always squeezing everything they can from this side of the business. Thank you Mélusine and the rest of the team for all of your help."
Sean Nalewanyj, Founder | Real Science Athletics
Gigi & Olive

“Working with Melusine Studio has been an absolute pleasure. Their team is not only incredibly professional but also approachable and easy to collaborate with, making the entire process seamless and stress-free. They truly understand the nuances of email marketing, delivering creative and effective campaigns tailored to our brand. The results speak for themselves, and we couldn't be happier with their expertise and support.”
Georgie Le Roux, Founder | Gigi & Olive
Foresso

“Melusine Studio worked with us to create flows and email campaigns, and I would recommend them highly. The work is of a very high standard and took into account our brand and tone of voice to become an extension of our company while being very responsive and supportive.”
Conor Taylor, Director | Foresso
Detail Library

“Melusine Studio were fantastic to work with on our Klaviyo project.
They quickly understood our goals and helped us streamline our email marketing setup with clarity and care. Organised, proactive, and a genuine pleasure to work with, they made the whole process simple and effective. We couldn’t recommend them enough!”

Axelle Fox, Digital Marketer | Detail Library
Fable & Mane

“We have been working with Melusine Studio for over a year and we couldn’t be happier. The Studio has not only transformed the look and design of our emails to fully translate our brand identity, they have supported us from a technical perspective to fully maximise the potential of our CRM strategy. KPIs across the board have improved significantly and we look forward to working with them as a key partner for long-term business growth.”
Alice Frost, Global Digital Director | Fable & Mane
Fitizen

“Melusine Studio has been one of the best partners I’ve ever worked with. Their planning and management of our account is ultra professional. They are constantly measuring, improving, and optimising our Klaviyo account. It’s rare to work with people who do great work on time and are awesome to work with. I would wholeheartedly recommend them to anyone trying to make the most of their emails.”
Tom Eastman, Founder | Fitizen
Global Tea Hut

"It has been a wonderful experience working with Mélusine Studio to improve our email marketing and create a more meaningful experience for our customers, fostering a sense of community and connection with each email. There is a collaborative spirit to working with Mélusine Studio that aligns well with our mission and goals. I would highly recommend them to anyone who is looking for more than just another email marketing agency, but something that will become an integrated part of what is offered to your customers and community."
Connor Goss, Marketing Director | Global Tea Hut