SB Energy files for IPO with $3.2B loss, OpenAI dependency

SoftBank-backed AI infrastructure firm discloses heavy OpenAI reliance

SB Energy has filed paperwork for an initial public offering that reveals the company's precarious financial position and overwhelming dependence on a single customer. The AI power infrastructure startup disclosed a $3.2 billion net loss for the first half of 2026 while generating just $139 million in revenue, nearly all from its legacy energy operations rather than its core data center business.

The Tuesday filing with the Securities and Exchange Commission lists OpenAI as both a critical tenant and equity investor, with the company stating it is "substantially dependent" on OpenAI's performance. Sam Altman, OpenAI's CEO, was also an early personal investor in SB Energy. The filing notes that near-term revenues, project financing arrangements, and development plans are significantly tied to OpenAI's continued performance under lease and related agreements.

None of SB Energy's data centers are currently operational, and the company has not yet generated any revenue from that segment of its business. The firm relies heavily on external financing from partners to fund its data center campus development.

Major backing from tech giants

Despite its early-stage status, SB Energy has secured substantial support from major technology players. Nvidia announced in August that it would provide $105 billion in financing for an OpenAI data center in Ohio that SB Energy will construct. CEO Rich Hossfeld told CNBC that Nvidia's involvement helps unlock investment-grade financing and ensures project success.

SoftBank remains the controlling shareholder. The company plans to list on both Nasdaq and Nasdaq Texas under the ticker symbol SBE. According to The Wall Street Journal, SB Energy aims to raise between $5 billion and $7 billion from the offering and could begin trading as soon as this month.

Why it matters

The filing exposes the financial fragility beneath the AI infrastructure boom. A company losing billions while generating minimal revenue and operating zero facilities can still pursue a multi-billion-dollar IPO based largely on future promises and the AI hype cycle. The extreme concentration risk—with OpenAI mentioned 306 times in the S-1 compared to SoftBank's 325—signals that investors would essentially be betting on OpenAI's trajectory rather than a diversified infrastructure business.

Growing headwinds

SB Energy identified several risk factors beyond its OpenAI dependence. The filing flagged growing public resistance to AI and AI-related infrastructure, noting that community opposition and local moratoria could adversely affect operations. Other disclosed risks include technological advancements that could render facilities obsolete, potential failure of businesses to adopt AI at expected rates, regulatory changes, and decelerating capital expenditure from hyperscale cloud providers.

The company's substantial first-half losses stem from what it described as "substantial investments" in its data center strategy. With no operational facilities yet generating returns, SB Energy faces a critical period ahead as it attempts to execute on ambitious buildout plans while managing its cash burn and dependence on a concentrated customer base.

These details were first reported by CNBC.