Helion Raises $465M Series G

Helion Energy, a Washington-based fusion energy company, announced a $465 million Series G funding round, bringing its total funding to $1.5 billion and valuing the company at $15.5 billion post-money. The investment, led by Thrive Capital with participation from new investors like Alta Park Capital, Anti Fund, BoxGroup, Capita, Peak XV Partners, and William Clay Ford Jr., as well as existing investors including Capricorn Technology Impact Funds, Lightspeed Venture Partners, Mithril Capital, Dustin Moskovitz through VSR Ventures Private Limited Foundation, and SoftBank Vision Fund 2, will accelerate the commercial deployment of fusion energy. The capital will support scaling manufacturing capacity in the United States, expanding operations, and strengthening Helion Energy's ability to deliver clean electricity to customers. This funding follows milestones achieved by Helion Energy's seventh-generation Polaris prototype, which became the first privately funded fusion machine to operate using deuterium-tritium fuel and exceeded 150 million degrees Celsius in plasma temperature. Helion Energy is also constructing Orion, its first fusion power plant, in Malaga, Washington, with agreements to supply electricity to Microsoft and Nucor.