Your Klaviyo agency for ecommerce growth
Your campaigns, automated flows and customer segments should work together. Rügamer & Steiner handles the strategy, copy, design and technical delivery of your Klaviyo email marketing, with specialist support for UK ecommerce brands from our Düsseldorf-based team.
Discuss your Klaviyo needsWhat we manage in Klaviyo
Connecting your store is just the start. A well-run email channel also needs relevant content, clear sending rules and reporting that guides the next decision. We bring those tasks together in one team.
Strategy and technical implementation
We review your existing email channel, your goals and your store integration, then set priorities for campaigns, automation and further growth. The technical work depends on your ecommerce platform and current setup.
Newsletters and campaigns
We develop themes, copy and email designs tailored to the product range, brand and occasion. This allows product launches, advice and sales promotions to form a unified campaign plan. Our Newsletter management brings together the ongoing implementation. In our Newsletter gallery shows examples of our work.
Automated Klaviyo flows
We design and manage email flows throughout the customer journey. Depending on the starting point, these may include a welcome series, a checkout-abandonment reminder or messages after a purchase. The Set-up and optimisation of Klaviyo flows combines concept, technical setup and checks. The data and exclusions needed are explained in our guide to Klaviyo flows.
Segmentation & retention
First-time buyers, returning customers and engaged prospects do not always need the same message. We use relevant segments to match your content and messaging to each group. Growing your subscriber list is also part of our service.
Copy & email design
Our copywriters and designers combine compelling product messaging with a layout that makes your brand recognisable. Clear messaging and a clear next step come first. Read our Guidance on the structure and readability of newsletters.
Analysis and optimisation
We analyse campaigns and sales cycles and compare variations through A/B testing. Klaviyo attributes revenue using a defined model; attributed revenue is not automatically additional store revenue. Our email marketing metrics guide explains this difference.
Which ecommerce brands do we work with?
We support B2C and B2B ecommerce brands, including UK businesses, particularly those with seven- or eight-figure annual revenue. Alongside scale, we consider your product range, subscriber list, available store data and your team’s capacity.
Perhaps Klaviyo is already set up, but campaigns go out irregularly, existing flows have not been reviewed in months, or copy and design get pushed aside by day-to-day work. Whether you are improving an existing channel or building from scratch, we will agree on the steps that suit your store.
We work with Shopify, Shopware, Magento, JTL and WooCommerce, among other platforms. For an abandoned checkout reminder, Klaviyo must recognise both who started a purchase and who completed it. Without the purchase event as an exclusion, reminders can reach customers who have already ordered. We check which events and product data your integration actually sends before setting up the flow.
How we get started
- Review your starting point. In your free discovery call, we discuss your store, your current email activity and the goals you want to achieve.
- Agree priorities and responsibilities. We agree which campaigns and automated flows come first and who will approve the content.
- Create and deliver. Our team develops the ideas, copy, design and technical setup. You provide the brand knowledge and feedback.
- Review the results and refine the approach. Reporting and testing help prioritise the next steps and develop your email channel.
Allow around two to three hours a month for approvals and coordination, with around three hours during the first fortnight of onboarding. We agree the scope and working arrangements around your needs.
Discover our work
In the client case studies Sabro, Seaside64 and Plugin Festivals (MAENTUM) share their experience of working with us. Each story reflects a different starting point; individual results should not be assumed to apply to every store.
Our Email designs from various sectors give you practical examples alongside these interviews. You can find the official Rügamer & Steiner Klaviyo partner profile in Klaviyo’s partner directory.
Which support should you commission first?
Choose your first project around the work that is currently being left undone. If campaigns are regularly unfinished, topic planning, copy and design provide a suitable starting point. If customers receive unsuitable automated messages, define a specific flow project. If the causes are still unclear, review the current setup before planning further content.
- For ongoing campaigns: newsletter management with planning, copy and design.
- For recurring customer moments: set up Klaviyo flows or make targeted revisions.
- For an unclear starting point: the Klaviyo audit checklist to help you prepare.
Bring a specific example to the initial consultation: your most recent newsletter, a problematic flow message or a report you are unsure how to interpret. Together, we discuss which tasks your team will retain and which support makes sense first.
How do you know which parts of the project are complete?
A clear scope describes specific deliverables: for example, the agreed campaign drafts, selected flow messages or a review of particular rules. Also record which questions remain open, what your team has approved, and whether technical preparation or publication is included.
For ongoing management, the reporting period, campaigns reviewed and next actions should be clear. This lets you distinguish a completed draft from a published message and a result measured later. Our guide to email marketing metrics helps you relate the analysis to the work actually agreed.
How much does a Klaviyo agency cost?
The costs of a Klaviyo agency are determined by the agreed scope of services and the current state of your shop. Managing an existing account with regular campaigns is a different task to setting up a new one with new templates and multiple email sequences. That is why, before providing a quote, we discuss which tasks are required and which your team will handle.
| Cost factor | What you should clarify |
|---|---|
| Technical background | Is the shop integration in place? Which data, templates and existing flows need to be checked or adapted? |
| Campaigns | How many newsletters, target audience variants and languages does the ongoing management cover? |
| Copy and design | Are the content and design created in-house at the agency, or does your team provide ready-made materials? |
| Automations | How many flows and messages will be created or revised? Is ongoing management included? |
| Coordination and evaluation | How are approvals, corrections, reports and tests organised? |
Please consider one-off set-up costs, ongoing agency services and Klaviyo software costs separately. The scope of any additional tasks should be clarified prior to implementation. A flat-rate euro amount without this information is of little help when making comparisons.
In-house or agency: Which tasks do you wish to outsource?
An in-house team can manage email marketing itself if it has the time and expertise required for planning, copywriting, design, Klaviyo set-up and analysis. An agency can bundle these tasks or fill specific gaps. What matters is actual capacity, not just the number of team members.
Make a note of who prioritises topics, who provides product information and who approves campaigns. Even with comprehensive support, your brand and product knowledge remains important. Our services for Newsletter management and to the Setting up and optimising Klaviyo flows help to define these tasks more precisely.
How can an agency’s quote be compared?
Give all providers the same starting point and the same tasks. A detailed request should describe the shop system, the current state of Klaviyo, the required campaigns or flows, and the contribution your team will make. You should then compare content, technical checks, corrections and ongoing support based on this scope.
Questions you can use in your consultation
- Which specific campaigns, flow messages and variants are included?
- Who is responsible for the text, design, set-up and checking of the finished emails?
- How are additional tasks, approvals and changes to the scope coordinated?
- Which reports are generated, and how are attribution rules explained?
- What are the one-off, ongoing and software costs involved?
Our Guide to choosing an email marketing agency adds working examples and practical checks to these questions. In our initial consultation, we discuss what scope of support suits your shop.
Which evidence answers each question when choosing an agency?
- Design: The curated original designs show structure and style. The detailed analysis of the BMS Fabric Guide explains how the reader is guided through the email. An exported image does not demonstrate an actual send or revenue.
- Working together: In the published client interviews businesses describe their starting point and experience. Check whether their challenge matches your shop's needs; individual statements do not replace a comparable performance report.
- Partner profile: You can find the directory listing directly on Klaviyo. Services, responsibilities and pricing are defined in the specific proposal.
Start your comparison with a specific challenge: an outstanding campaign, an unsuitable flow message or an unanswered reporting question. Then choose relevant work examples and the scope you need.
Klaviyo agency FAQs
How does agency support differ from a Klaviyo licence?
Klaviyo provides the software. Our agency manages the strategy, content, design, technical delivery and optimisation agreed with you. We discuss the scope and costs before you commit.
Do we need to supply the copy and design?
We create the content and design. Your product knowledge, understanding of your audience and approvals help ensure every email feels like your brand.
Can you work with our existing Klaviyo setup?
We start by reviewing what is already in place. Your existing campaigns, flows and store integrations help us identify the changes you need. Starting from scratch is not a requirement.
How do we compare quotes from different agencies?
Compare the same scope, ownership of copy and design, the approval process and how success is measured. Our practical Checklist for selecting an email marketing agency will help you prepare.
What does your email marketing need next?
Bring a specific challenge: a welcome flow that does not explain your brand, a newsletter process with too much back-and-forth, or a revenue report that offers no clear next step. We will use it to work out the support your store needs.
It helps to bring details of your ecommerce platform, your current Klaviyo setup and one or two recent emails. You do not need to prepare a full brief before the call.
Book a free discovery callKlaviyo partner profile and expertise
The official Klaviyo partner profile for Rügamer & Steiner lists Platinum Master status (as at 5 October 2026). Our Audit guide helps you determine the starting point for your shop. Publisher and sources