Retention-First Growth®. Official Book & Method

Customer acquisition costs have tripled. Privacy changes have fractured attribution. Yet 90% of marketing budgets still chase new customers whilst 70–77% of first-time buyers never return.

The math doesn't work anymore.

For two decades, teams optimised the wrong variable. They celebrated list growth whilst only 28–35% of profiles ever monetised. They hired growth teams to scale acquisition whilst their best customers, the 5–8% driving 35–41% of revenue, quietly churned.

The funnel era is over. The retention era has begun.

Drawing on years of hands-on work with top-performing brands, I’ve spent the last two writing the full Retention-First Growth® methodology and the flywheel model engineered to reshape how ecommerce grows.

In parallel, I developed groa°, an agentic operating system designed to autonomously execute this methodology, built in collaboration with leading minds from Oxford and Cambridge.

I'm excited to share both:

→ The Book: Retention-First Growth®
The methodology that works. Born from years of field implementation, it codifies the systems, metrics, and behavioural loops that define the world’s top-performing ecommerce brands. Retention-First Growth® provides a complete operating framework for transforming retention from a reactive tactic into a compounding profit engine. It distils the patterns behind top-10% performance into actionable models that any brand can apply.

→ groa°: The Operating System
The agentic AI layer built to operationalise the methodology. Not another chatbot that makes you prompt. Not another dashboard that just reports. An autonomous system that connects fragmented data, surfaces what's working and what's leaking, and executes the methodology without the productivity collapse plaguing GenAI tools.

The gap between median and elite isn't genius, it's access to the right methodology and the operating system to execute it.

Join myself and the team for the next chapter in profitable ecommerce.