Specialised email and SMS systems that compound repeat purchase and LTV — built from your customer data.
5 minutes with the founder Jack Shaw — how Retention Engineering works.
Trusted by 75+ brands
At $1M+/month, your retention problem doesn’t look like a problem. Email runs. Campaigns go out. Revenue comes in. But somewhere underneath, the numbers tell a different story.
Repeat purchase rate is flat. LTV isn’t moving. Cross-sell is reactive instead of designed. Every customer is being spoken to the same way — one campaign, one welcome flow, one strategy broadcast to the entire list.
That works at $200k/month. At your scale, it’s leaking serious money. Every customer not retained is a customer being re-acquired.
This is not a revenue problem. It’s a retention architecture problem. And no amount of email volume fixes it.
Retention Engineering starts at the data layer. We map which customers buy Product B after Product A. We learn who converts to a second order in 30 days versus 90 — and why. We identify which segments will reorder, which will lapse, which become VIPs, which need reactivating — and we build the entire system around that intelligence.
Every customer segment gets a distinct strategic approach every month.
01
A customer who places a second order within 30 days is significantly more likely to become a long-term repeat buyer. Compress that window and you compound LTV.
02
Customers brought back through behaviour-triggered reactivation flows spend meaningfully more over the following 12 months than those reactivated through generic campaigns.
03
LTV moves on small structural changes — a few percentage points of repeat purchase rate at $1M+/month is seven figures of additional revenue per year.
WITH IN-HOUSE CREATIVE
If you have your own creative team in house, you do NOT need to use ours.
You direct.
We engineer.
We own the strategy
Segment map, send calendar, messaging priorities — all defined by us.
Your team executes
Campaigns and flows built under our direction. Your brand voice, intact.
Zero disruption to workflow
We plug into how you already work. No restructuring required.
without in-house creative team
If you have your own creative team in house, you do NOT need to use ours.
We handle everything.
You approve.
End-to-end delivery
Strategy, copy, design, and deployment — all from our team.
Brand voice built from your data
Developed from customer behaviour, not guesswork or templates.
Same outcome, either way
The strategic result is identical. The model adapts to you.
Either model produces the same result. The difference is operational, not strategic.
Built from the ground up on client results.
Awards & Certificates
As Seen In
What compounding retention looks like in practice — engineered, measured, repeatable.
ELECTRONICS
From 1% to 26% of total revenue from email and SMS in 30 days. $101,000 in additional revenue in the first month — engineered through behaviour-triggered flows, and 100,000+ subscribers reactivated from a dormant list.
HEALTH & WELLNESS
Over £950k generated from email and SMS in 2025. Built on rebuilt deliverability, structured non-purchaser conversion, and engineered lifecycle architecture.
Pet supplements
From 20% to 42% of total revenue from email in 90 days. Consistently above 35% for the following 18 months. Engineered by restructuring email to focus on customer behaviour, and replacing discount dependency with value-led messaging.
Founders and operators who’ve worked with us, in their own words.
Email and SMS campaigns
built for behaviour, not broadcast.
Jack Shaw publishes weekly on YouTube about retention, customer psychology, and what it actually takes to build serious eCommerce brands properly.
Discovery calls are diagnostic. We’ll look at where retention is leaking, what it’s costing you, and whether we’re the right fit.
