What is TerraPower?
Founded by Bill Gates, TerraPower is a nuclear innovation firm dedicated to transforming the energy industry through its proprietary Natrium reactor technology. By integrating advanced sodium-cooled fast reactor designs with molten salt energy storage, the company provides a unique solution for grid flexibility and stability. This approach effectively bridges the gap between intermittent renewable sources and the constant demand for electricity, positioning TerraPower as a critical player in the global transition to sustainable infrastructure. The company's technical roadmap focuses on enhancing safety, reducing waste, and improving the economic viability of nuclear power in a modern, competitive energy market.
How much funding has TerraPower raised?
TerraPower has raised a total of $1.4B across 4 funding rounds:
Angel/Seed
$10M
Angel/Seed
$35M
Private Equity
$750M
Other Financing Round
$650M
Angel/Seed (2008): $10M with participation from Microsoft
Angel/Seed (2010): $35M led by Charles River and Khosla Ventures
Private Equity (2022): $750M supported by Sk and SK Innovation
Other Financing Round (2025): $650M featuring Bill & Melinda Gates Foundation, NVentures, and HD Hyundai
Key Investors in TerraPower
Bill & Melinda Gates Foundation
A global philanthropic organization focused on supporting individuals experiencing hunger and extreme poverty while promoting healthier lives.
NVentures
An upstream exploration firm providing technical and commercial intelligence for the energy industry, with a specialized focus on hydrogen and renewable energy projects.
HD Hyundai
A South Korean heavy industrial conglomerate that has evolved into a digital and eco-friendly solutions provider across shipbuilding, robotics, and energy sectors.
What's next for TerraPower?
With this latest strategic financing, TerraPower is well-positioned to accelerate the deployment of its flagship projects and scale its manufacturing capabilities. The company is expected to focus on the commercialization of its Natrium technology, navigating the complex regulatory and engineering requirements necessary for large-scale implementation. By leveraging its robust network of industrial partners and deep-tech investors, TerraPower aims to solidify its market position as a leader in the clean energy transition, ultimately providing a scalable blueprint for carbon-free power generation that can be deployed globally to meet rising energy demands.
See full TerraPower company page
