Vertoro B.V. Raises $19

Ore Energy

Ore Energy is developing the next generation of long-duration energy storage to enable a fully renewable power system. Our iron-air battery technology stores electricity for up to 100 hours, making it possible to keep grids running through multi-day periods of low wind and sun. Unlike conventional batteries, our systems use abundant, non-toxic materials: iron, air, and water. This makes them safe, cost-effective, and scalable without relying on scarce minerals or fragile supply chains. When charging, the battery converts rust into metallic iron. When discharging, it reverses the reaction, consuming oxygen and producing rust again. This simple, proven chemistry has the potential to deliver energy at a fraction of the cost of other storage technologies. Founded at TU Delft in the Netherlands, Ore Energy is focused on real-world deployment. In 2025, we connected the world's first iron-air battery to the grid in Delft. This milestone demonstrated that multi-day storage can be integrated directly into modern energy systems. As countries expand renewable generation, the challenge of balancing supply and demand is becoming urgent. We believe long-duration storage is a critical part of the solution and that it must be safe, sustainable, and affordable at scale. Ore Energy’s mission is clear: to store renewable energy anywhere, for as long as needed, using materials that are available to everyone. By combining deep electrochemistry expertise with practical engineering, we are turning one of Earth’s most abundant resources into a cornerstone of the clean energy transition. To learn more about our technology, deployments, and career opportunities, visit: www.oreenergy.com

Raxio Data Centres

Raxio Group is one of Africa's leading carrier-neutral Tier III data centre operators, offering best-in-class colocation services. Founded in 2018, we aim to provide industry-standard, carrier-grade facilities and services that form the foundation for Africa's digital economy. After launching our first facilities in Uganda, Raxio is now present in Ethiopia, the Democratic Republic of Congo, Ivory Coast, Tanzania, Mozambique and Angola. We are constantly expanding our presence and are on track to build several new facilities over the next two years, establishing a network of interconnected data centres serving active and latent demand across the African continent. For further information, please visit www.raxiogroup.com.

TEMPRESS

Tempress’ mission is to support customers in the semiconductors, power, MEMS, photonics, solar, life sciences and coating markets to produce advanced materials and devices with high added value innovative furnace solutions. Tempress’ over 50 years of heritage in developing and producing diffusion and deposition equipment and related processes is a testament to the company’s flexibility, innovation, quality, and dedication. Our technologies and products have advanced the semiconductor industry and we have installed more than 30 GW production capacity in diffusion furnace systems for solar panel production. Tempress’ headquarters is located in Vaassen, The Netherlands. Customers are supported throughout the world by its highly professional direct sales and service team and commercial partner network.