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imec.istart TALKS | On storytelling, investor expectations & getting your impact issue on the agenda

Published on December 12, 2025

In the imec.istart TALKS podcast, venture coach James Pearson brings together founders from the imec.istart community for short, caffeine-fueled conversations about building tech that matters — impact talks, served hot.
In this episode, Grégoire de Hemptinne, co-founder of Shayp, dives into a major yet often invisible sustainability challenge: water loss. He explains how real-time data can expose hidden inefficiencies, why storytelling is essential for climate tech founders, and how to drive change in traditionally slow-moving sectors.
Turning a silent problem into measurable impact
Shayp’s real-time monitoring helps cities, companies, and households reduce unnecessary water waste and strengthen their environmental footprint. As Grégoire puts it:
“Leaks aren’t sexy, but they waste billions of litres of water every single day.”
He highlights why water remains central to global sustainability efforts:
“Water touches almost every Sustainable Development Goal… It’s everywhere, but too often overlooked.”
Scaling climate tech with storytelling & persistence
Bringing an “invisible” problem onto the agenda requires clear storytelling, strong partnerships, and patience. Grégoire reflects on navigating product-market fit in a conservative industry and how founders can influence stakeholder mindsets.
Managing expectations & staying intellectually honest
As Shayp grew, Grégoire learned to balance ambition with realism — especially when communicating with investors. He explains that founders often face pressure to choose a single “right” path, even when the problem requires patience and exploration. His advice:
“Be intellectually honest with yourself. Keep asking — is this really the only way, or is there another path?”
This mindset, he says, keeps teams grounded while navigating uncertainty.
Purpose as a driver
For Grégoire, climate impact is not just professional — it’s deeply personal:
“When you have a child, you start seeing the world differently. Having an environmental impact became essential — I needed that in my career.”
🍵 Founder fuel
Despite the theme, Grégoire isn’t a coffee guy at all — his fuel is tea. Morning, noon, or evening, there’s always a blend for the moment. The non-negotiable? His morning tea.
Listen to the episode
