Your competitors aren't sending better emails.
They just know where their revenue is hiding.Do you?
Your next growth stage probably isn't more traffic.
It's the customers you already have.
Growth Vault uncovers why customers don't return, then builds the system that brings them back.
P.S. We work in English and French.
You and your top competitor get the same visitors.
The difference is what happens after the click.
Most brands measure what they acquire. Few measure what they keep.
First-time buyers who never order again. Flows built once and never revisited. Campaigns sent to the whole list because segmentation was never set up. None of it shows up as an error. It shows up as growth that costs more than it should.
How we work.
Strategy and implementation stay in the same hands, so nothing is lost between the plan and the build.
Full retention audit
A fixed-scope, one-week review of your Klaviyo account and Shopify order data.
- Klaviyo account audit
- Market and competitor review
- Customer journey analysis
- Prioritized 60–90 day roadmap
Deliverability
If emails don't reach the inbox, nothing else matters. We check this first.
- Domain authentication
- Sender reputation check
- List health and cleanup
Lifecycle flows
Automations built around how your customers actually buy, not a generic template.
- 01Welcome seriesAfter sign-up
- 02Abandoned cartCheckout started, no order
- 03Post-purchaseAfter the first order
- 04Win-backWhen buyers go quiet
+ 4 more, tailored to your brand
- 8+ flows, built and launched
- Pop-up & sign-up form integration
- Copywriting and design
- KPI tracking setup
Campaign management
Campaigns planned around your calendar and your segments, without wearing out your list.
- Monthly campaign calendar
- Copywriting and design
- Segmented sends
- Launch and seasonal campaigns
Segmentation
The right message for each type of customer, from first-time buyers to your most loyal.
- Segmentation framework
- Behavior-based audiences
Ongoing optimization
We run your email program month after month, so it keeps improving instead of going stale.
- 01PlanCalendar
- 02SendSegmented
- 03TestFlows & campaigns
- 04ReviewWhat moved
- Campaign performance tracking
- Ongoing A/B tests on flows and campaigns
- Deliverability monitoring
- Monthly performance review: what moved, why, and what's next
Want to go further?
Once your email engine is running, we can extend it to SMS and loyalty.
Available to retainer clients only, so every channel runs on the same data.
SMS marketing
Loyalty & rewards program
We build retention systems.
Then we prove they work.
Engineered, not templated
Flows are built with clear logic, clean data and tracking from day one, so you can see what's working and why.
Root cause, not symptoms
Low open rates can mean a deliverability problem, list decay or the wrong segment. We find out which before changing anything.
Honest measurement
Klaviyo's dashboard tends to overstate email's impact. We set a baseline before we build and report against it, so you know what actually moved.
You've already paid to acquire these customers.
Retention is how you earn that money back.
Higher order rate from flows than from campaigns.
Klaviyo, 2026 benchmarksHigher revenue per recipient from automated flows than from campaigns.
Klaviyo, 2026 benchmarksOf email revenue comes from flows, which are just 5.3% of sends.
Klaviyo, 2026 benchmarksOf flow revenue comes from first-time buyers, vs 16% for campaigns.
Klaviyo, 2026 benchmarks
Industry benchmarks create context.
Your data reveals the opportunity.
Before you book.
We already have email flows. Is this still useful?
Usually, yes. Most brands have flows. The question is whether they reflect how customers actually buy today, and whether anyone has measured them since launch.
Not on Klaviyo or Shopify?
We can still talk. We also work with other platforms, such as Omnisend. Whether it's a fit depends on your setup, and we'll look at it together on the call.
What happens during the free audit?
Before we talk, we go through your brand as a customer would and record what happens over the following days. On a 30-minute call, we show you what we found and where we'd look first. No account access needed, and no commitment.
We've worked with agencies before. Why is this different?
We start with your customer economics, not a content calendar. Every recommendation comes with the reason it matters and how we'll measure it.
How long before I see results?
Full retention audit: one week. Core flow build: typically four to six weeks after that. How quickly results show depends on your traffic, order volume and starting point. We set the baseline at the start so progress is visible.
Do you handle marketing consent and compliance?
Yes. Signup forms are set up with correct consent language and links to your privacy policy, in line with GDPR and the rules in your markets. As we process customer data on your behalf, we work under a data processing agreement.
WHO'S BEHIND GROWTH VAULT
Data & software engineer. Klaviyo & Shopify certified.
I started Growth Vault because most retention programs are built as marketing activity rather than as systems. I build them the way an engineer would: start from the data, make the logic explicit, and measure everything.
Find out what your customer journey looks like from the outside.
We go through your brand as a customer would, then walk you through what we found on a 30-minute call.