Helion Energy has a bold goal to do what no company has ever done: harness the immense power of fusion energy. Fusion, the process that the sun and stars use to create energy, could provide the world with an abundant form of low-cost, emissions-free energy. Fusion energy could help solve climate change by providing the world with a large-scale, clean power source.
Many believe fusion power is still decades away. However, Helion Energy plans to start producing electricity from fusion by 2028. It has already agreed to supply tech titan Microsoft (MSFT -1.07%) with at least 50 megawatts of fusion electricity per year in 2028. If it doesn't, it will have to pay financial penalties.
Microsoft isn't the only big name in tech that believes in Helion's ability to unlock the power of fusion. OpenAI's founder and CEO, Sam Altman, is one of the company's top investors, and his artificial intelligence (AI) startup is looking to buy lots of fusion power from Helion Energy.
Fusion's promise and Helion Energy's big-name backers have many investors eagerly anticipating its initial public offering (IPO). Here's everything you need to know about investing in Helion Energy ahead of any future IPO.
Is Helion Energy publicly traded?
Helion Energy is not a publicly traded company. It's a private company owned by Altman and other investors, including Mithril Capital, Capricorn Investment Group, Dustin Moskovitz, Lightspeed, SoftBank Vision Fund 2, and Nucor (NUE +0.74%).
IPO
When will it IPO?
Helion Energy didn't have an IPO on the calendar as of late 2025. The company was still in the early stages of development. It aims to begin generating electricity from fusion power by 2028, which it will provide to technology titan Microsoft. It has raised over $1 billion from investors (including another $425 million in early 2025) to bring its bold vision to life. Helion Energy will likely wait until it's further along in its development, including proving it can produce power from fusion, before going public.
Is Helion Energy profitable?
As a private company, Helion Energy doesn't have to publicly disclose its financial results, so there wasn't any publicly available information about its profitability.
However, the company likely wasn't profitable. It was still working to develop commercial fusion power. It has committed to begin producing fusion power by 2028 for Microsoft. If it doesn't, it will need to pay financial penalties. It also has a deal to build a plant to produce power for steelmaker Nucor, which it hopes to bring online in the 2030s.
The company isn't yet producing power, so it's likely not generating revenue while posting significant losses. Helion is investing heavily in testing its fusion technology as it works towards a commercial breakthrough. Since no company has ever produced electricity from fusion, Helion might never make money on the technology.
The bottom line on Helion Energy
Helion Energy wants to boldly do what no company has done before: harness fusion energy. The emissions-free power source could supply the world with nearly limitless power. This bold vision could have a huge payoff for the company and the global economy. Helion Energy is at least several years away from delivering on that grand ambition. The promise of fusion power makes Helion Energy an important company to watch in the coming years.
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