In this episode of Add To Cart, Nathan Bush chats with Justin Irvine, Co-Founder of The Aggregate Co, the specialist ops consultancy behind brands like Meshki, Showpo, Oz Hair and Culture Kings. Justin shares the practical and sometimes painful truth about what’s really costing ecommerce brands: from bloated freight contracts to under-leveraged loyalty programs.

Recorded live at Retail Fest, the episode dives into the hidden mechanics of fulfilment and shipping, and why understanding your true cost to serve is more critical than ever. Justin also breaks down how brands can survive (and even thrive) through the latest round of Trump-era US tariffs, including tips on forecasting, warehousing and international expansion. It’s a grounded, numbers-first conversation that will leave ecommerce operators thinking twice about their next parcel drop.

This episode was brought to you by: Shopify & Klaviyo

About your guest:

Justin Irvine is an Australian entrepreneur and logistics innovator, best known as the Co-Founder and CEO of The Aggregate Co, a Sydney-based consultancy specializing in ecommerce fulfillment and supply chain optimization. With a career spanning over two decades, Irvine has been instrumental in helping retailers scale globally by leveraging data-driven strategies, operational insights, and industry expertise.

About your host:

Nathan Bush is the host of the Add To Cart Podcast and a leading ecommerce transformation consultant. He has led eCommerce for businesses with revenue $100m+ and has been recognised as one of Australia’s Top 50 People in eCommerce four years in a row. You can contact Nathan on LinkedIn, X or via email.

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