LeydenJar is a leading battery innovator delivering high-performance, 100% silicon anodes to the consumer wearables and electronics industries. Recognized in Fast Company's World's Most Innovative Companies list in 2026 (No. 5, EMEA category), and by TIME and Statista as one of the World's Top 250 GreenTech Companies in 2025, LeydenJar started as a spin-off from TNO, the Netherlands Organisation for Applied Scientific Research, in 2016. LeydenJar has developed Silyte, a patented silicon anode technology that increases the energy density of Li-ion batteries by 50%, contributing to smaller or more powerful batteries for next-generation smart devices. With a mission to power the future of smart devices through breakthrough battery technology, LeydenJar recently secured €100 million in funding to accelerate commercialization and is building its first large-scale PlantOne production facility, set to launch in 2027.