SoftBank-backed SB Energy has filed for a US initial public offering, giving investors a new way to bet on the enormous power and construction requirements behind the artificial-intelligence boom.
The company plans to list under the ticker SBE on Nasdaq and Nasdaq Texas. The filing does not yet establish the final offer price or the amount to be raised, but Reuters reports that the company could seek a valuation above $50 billion.
SB Energy's pitch is unusually ambitious: it aims to connect renewable power, energy infrastructure and large-scale data-centre development for customers building the next generation of AI systems.
The numbers behind the filing
SB Energy reported first-half 2026 revenue of $138.7 million, an increase of 66.4 percent. It also recorded a net loss of $3.21 billion, a reminder that rapid infrastructure expansion requires huge amounts of capital long before projects produce stable cash flow.
The filing highlights a project backlog valued at about $439 billion. Backlog is not the same as recognized revenue, and investors will examine the conditions attached to those projects, construction schedules and customer commitments.
The company currently has no operational data centres, according to the filing details reported by Reuters. That fact creates the central tension in the IPO: the opportunity is vast, but much of the value depends on execution that still lies ahead.
OpenAI and Nvidia are central to the story
Nvidia has committed $1.5 billion through a private placement, while OpenAI has committed $5.5 billion in warrants. Those relationships give SB Energy credibility with two of the most influential companies in the AI ecosystem.
SB Energy is constructing a major data centre in Ohio for OpenAI and is connected to broader infrastructure plans involving SoftBank. Long-term lease arrangements can provide predictable future cash flows, but reliance on a small group of customers can also create concentration risk.
Investors will want to know how binding those commitments are, which milestones trigger payments and how much additional financing SB Energy must secure before facilities become operational.
Why AI needs an energy company
Modern AI data centres consume enormous amounts of electricity. The challenge is no longer limited to buying advanced chips; developers must secure land, transmission connections, backup systems, cooling equipment and dependable power contracts.
Grid queues in several US markets are already long. A project can have financing and customers yet remain delayed because the required electrical infrastructure is unavailable. Companies able to combine development expertise with power supply therefore occupy a valuable position in the AI buildout.
SB Energy began with a strong renewable-energy identity. The data-centre strategy attempts to turn that experience into an integrated infrastructure offering. Customers increasingly want both capacity and a credible answer to questions about emissions from energy-intensive computing.
The $439 billion backlog needs context
A headline backlog larger than the annual output of many national economies will attract attention, but investors should not treat the figure as guaranteed sales. Infrastructure backlogs can include projects spread over many years and may depend on permits, financing, customer demand and interconnection approvals.
The quality of the backlog matters more than its size. Analysts will examine how much is supported by signed contracts, how concentrated it is among related SoftBank entities or OpenAI, and what cancellation protections exist.
The company's prospectus should also clarify capital requirements. If SB Energy must spend heavily before receiving customer payments, it may return to debt or equity markets even after the IPO.
Why the losses are so large
The reported $3.21 billion net loss is striking beside $138.7 million in revenue. Early-stage infrastructure companies can generate large accounting losses while acquiring assets and financing construction, but the scale still demands careful scrutiny.
Investors will look past adjusted metrics to cash burn, interest costs, project-level debt and the timeline to operating income. A high valuation depends on confidence that completed facilities will earn durable returns rather than merely expand the company's footprint.
What could make the IPO succeed
Public markets have shown strong appetite for companies connected to AI, particularly when they control scarce resources such as chips, power or data-centre capacity. SB Energy offers exposure to several of those constraints at once.
The involvement of Nvidia, OpenAI and SoftBank may draw institutional interest. A successful offering could also fund faster construction and acquisitions, helping SB Energy diversify beyond its current customer relationships.
However, the same AI enthusiasm can create valuation risk. If data-centre demand slows, power costs rise or construction schedules slip, a company priced for extraordinary growth has little room for disappointment.
What happens next
The next version of the IPO filing should provide an expected price range and share count. Roadshow presentations will then show how management explains the loss, backlog and absence of operating data centres to potential investors.
Regulators and local communities will also remain part of the story. Large data centres can face opposition over power use, water consumption, tax incentives and effects on household electricity prices.
SB Energy's filing captures the business question at the heart of the AI boom: who will build and power the physical infrastructure behind digital intelligence? The company is asking public investors to finance one of the boldest answers yet.
