adVentures Venture Studio is thrilled to announce that Fex Energy, the flagship venture of Hard Climate Venture Studio—of which adVentures is a proud co-founder—has successfully raised a $3.5M seed round to advance its groundbreaking iron-based long-duration energy storage technology. This milestone underscores the power of collaboration and innovation in driving meaningful climate solutions.
Fex Energy, a McGill University spin-out, is pioneering a transformative approach to industrial decarbonization. Its iron-based energy storage system offers unmatched energy density, stability, and scalability, making it ideal for replacing fossil fuels in remote and challenging environments. The seed round, led by Fathom Fund (USA), Amplify Capital (Canada), and Antares Ventures (Singapore), will accelerate Fex’s pilot projects and global expansion, positioning the company as a leader in the energy transition.
“Fex Energy embodies the bold, scalable solutions we champion at Hard Climate,” said Marc Guilbert, CEO of Hard Climate. “From its academic roots to this funding milestone, Fex demonstrates how scientific excellence and entrepreneurial drive can deliver impact at scale.”
As a co-founder of Hard Climate, adVentures is committed to nurturing ventures that tackle the world’s toughest climate challenges. Fex Energy’s success is a testament to the studio’s mission: to build and scale technologies that redefine industrial sustainability.
“We are proud to support Fex Energy’s journey,” said Antoine DUBOSCQ for adVentures. “This achievement reflects the potential of Hard Climate’s model—to transform research into real-world impact, and to empower founders who are reshaping the future of energy.”
The funding will enable Fex to deploy its first pilot project and strengthen partnerships across industries. With iron as its core—abundant, safe, and cost-effective—Fex is pooted to revolutionize energy storage and industrial heat, particularly in hard-to-decarbonize sectors.
About Hard Climate Venture Studio Hard Climate is a Canadian venture studio dedicated to launching and scaling breakthrough climate technologies. By acting as a founder, operator, and investor, Hard Climate de-risks innovation and accelerates the path to market for solutions like Fex Energy.
About adVentures Venture Studio adVentures co-founds and supports ventures and venture studios like Hard Climate, fostering ecosystems where science, entrepreneurship, and capital converge to create lasting environmental impact.
