Blue Earth Podcast

In this episode, José, founder of Segura and Blue Earth B100 winner, shares how his team is transforming water quality testing, from slow, expensive lab processes to real-time, on-site results.Drawing on years of experience in water chemistry and global consulting, José breaks down the scale of the problem utilities face, why existing systems no longer work in a changing climate, and how Segura is repurposing medical-grade technology to deliver faster, cheaper, and more scalable testing.We dive into early pilots with major global organisations, the path to certification, and what it takes to build a deep tech company at the intersection of infrastructure, climate, and data.

What started as an experiment with chicken waste and food scraps is now a fast-scaling biotech company.In this episode, Ben Pluke, founder of Raft Energy and Blue Earth BE100 Growth Winner, shares how his team is transforming waste into renewable energy, helping biogas plants increase output, improve efficiency, and unlock stronger returns.From early R&D in a shed to commercial trials with major operators, Ben breaks down the journey to market, the scale of the opportunity, and why 2026 could be a breakthrough year for Raft Energy and the wider waste-to-energy space.

In this episode, Natasha Boulding, co-founder and CEO of Low Carbon Materials and Blue Earth BE100 winner, shares how her team is transforming the built environment into part of the climate solution—starting with a carbon-negative aggregate used in roads, concrete, and infrastructure.From spinning out of academia to delivering over 40 real-world construction projects, Natasha breaks down the journey from lab to large-scale deployment, the challenge of breaking into a risk-averse industry, and why scaling production is the next big unlock.With demand already outpacing supply, this conversation explores how Low Carbon Materials is building trust, driving adoption, and shaping the future of sustainable construction at scale.

Hear from the founder behind exits to Sony Entertainment and a £300m+ scale-up, as he unpacks The Living Card — a venture tackling the UK’s cost-of-living crisis. From repeat backing by Ascension Ventures to parallels with Monzo and Blue Light Card, this is a conversation about timing, traction, and building a platform with real-world impact.

In this episode of the Blue Earth Podcast, Charney and Ramzi, co-founders of Do Epic Good, share the story behind their mission to transform how we learn.After decades in the creative industries, both reached a turning point. They saw first-hand the growing pressure on businesses to lead on sustainability and purpose, but also a clear gap: the people inside those organisations didn’t have the tools, time or engaging education needed to drive real change.Do Epic Good was built to solve that.Now part of Blue Earth Ventures, the platform delivers CPD-certified, podcast-style courses designed to help individuals and businesses drive profit with purpose. Think expert-led storytelling, practical frameworks and learning that actually fits into real life.

Paint hasn't changed in 60 years. John Stubbs and Emma Bestley think that's a problem, and an opportunity. In this episode, Guy sits down with the founders of Yes Colours, a design-led venture tackling waste, wellbeing and the science of colour from first principles. John shares how discovering that 98% of paint waste ends up in landfill set him on a path to reinvent the product entirely. Emma, who has grapheme-colour synesthesia, a condition where words and emotions appear as colour, explains how lived experience shaped a company philosophy built around human feeling rather than design theory.They discuss the world's first recyclable paint pouch, the AI tinting platform they're building, and their long-term ambition: to become the global authority on what colour actually does to us. It's a founder story about turning a deeply personal perspective into a genuinely disruptive business, and why the most traditional industries are often hiding the biggest opportunities.

After years scaling the global market leader in impact protection, Alex and Marcus left to challenge everything they'd helped build. In this episode, they join Guy to talk about what they saw from the inside that convinced them the industry needed a new approach, and how RE ZRO® is proving that sustainable materials don't have to compromise on performance or price.

What if the answer to one of construction's biggest carbon problems wasn't a cleaner version of steel, but something else entirely? In this episode, Blue Earth founder Guy Hayler sits down with Stephan Savarese, co-founder of Technocarbon, to explore how an aerospace engineering mindset led to a breakthrough structural material made from stone and carbon fibre. They discuss why construction materials remain one of the least-talked-about sources of global emissions, how coastal infrastructure is quietly failing around the world, and what it takes to bring a deep-tech material from eight years of R&D to its first commercial orders. A conversation about patience, physics, and the scale of what's possible when you ask the right question.