Margin-Led Marketing: How Bambu Rebuilt SUPA’s Ecommerce Engine for Profitable, Scalable Growth

The Challenge

Hot tub technology brand SUPA suffered from stagnant growth and flatlining conversions on a modest £4,000/month marketing budget under new investor pressure.

The Strategy

Overhaul the e-commerce foundation by prioritising profit margins over raw acquisition volume and expanding into programmatic channels.

Execution and Innovation

Redesigned landing pages, implemented margin-led budget allocation, and combined in-house attribution with external tools to track offline conversion impacts.

Results

Scaled monthly spend while significantly lowering CAC, expanding customer LTV, and achieving dramatic revenue growth across an 18-month period.

Judges' Verdict

"This was the standout for me. They started with an actual business problem and built the strategy around figuring out what was driving profitable growth. Really strong thinking around margin, attribution and incrementality, and the results clearly tied back to the business."