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s360 & ZERV: Marketing automation increased e-mail revenue by 252%

We transformed the e-mail marketing setup for ZERV's 14 online shops, resulting in a 252% revenue growth for Padelshoppen and a fivefold increase in e-mail subscribers

The challenge

Unifying 14 shops in one single platform


ZERV is a large retailer and brand within racket sports that operates more than 14 shops across the world selling equipment within tennis, badminton and padel tennis. Before attending the Danish version of the business reality program Sharks Tank, they wanted our help in taking the e-mail marketing setup to the next level and turning e-mail marketing into a revenue driver for their business.

Client

ZERV

Industry

E-commerce retail

252
%
e-mail revenue growth
5
x
increase in e-mail subscribers
20
%
higher e-mail open rate

The Solution

Tailored marketing automation for 14 shops


To scale ZERV’s e-mail marketing, we migrated all 14 shops to Klaviyo, unifying their operations on a single platform. Starting with Badmintonshoppen.dk, we analysed customer journeys to optimise upselling opportunities across key product categories like rackets, clothing, bags, and shoes.

We built a fully automated e-mail setup to guide customers through every stage of their journey, including welcome flows, onboarding, re-engagement, and advanced category-specific recommendations. Collaborating with Raptor, we introduced personalised product suggestions, significantly boosting engagement—such as a fourfold increase in click rates for abandoned product emails on Padelshoppen.

Additionally, we launched the "Padel Bat Advisor" flow, which used customer input from a short form to deliver tailored product recommendations, achieving exceptional performance and inspiring similar flows across ZERV’s other shops.
"I'm the type who always aims for the best, and s360 is the best in their field. The collaboration has exceeded all expectations, and we've seen significant growth in the KPIs we set. I'm looking forward to many more months of working with s360."
Mikkel Normann, Partner/CMO, ZERV

The Results

Record-breaking growth in revenue and e-mail subscribers


The new e-mail marketing setup delivered exceptional results within months:
  • 252% e-mail revenue growth for Padelshoppen and significant increases in total e-mail revenue across multiple shops
  • 20% higher open rate for Badmintonshoppen, even with nearly 30.000 additional newsletters sent
  • A more than fivefold increase in Padelshoppen’s Danish subscriber list
Building on this momentum, we’re expanding into new markets and refining the setup to establish ZERV as Europe’s leading brand for tennis, padel, and badminton. Together, we’re ready to ace the next challenge.

The Client

ZERV


ZERV is a leading brand and retailer in racket sports, dedicated to providing specialised gear for badminton, padel, tennis, and more. Operating 14 shops worldwide - including Badmintonshoppen, Padelshoppen, Tennisshoppen, and their own brand ZERV.dk - ZERV serves a global audience with high-quality products tailored to athletes at every level.

www.zerv.dk

Contact
Casper Ackermann
Senior Director & Head of Marketing Automation
[email protected]

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