SB Energy, a digital infrastructure firm backed by SoftBank Group, filed a confidential draft registration statement with the US Securities and Exchange Commission (SEC) on May 20, 2026, to prepare for an initial public offering (IPO) in the United States [1, 2]. The filing includes details on timing and deal size that remain subject to market conditions and SEC review [1, 2].
The company is building power infrastructure to support the energy needs of artificial intelligence data centers. It has raised over $1.8 billion in funding from major investors including SoftBank, OpenAI, and Ares Management [1, 3]. Beyond funding, SB Energy manages about 5 gigawatts of operating and developing clean energy assets and has secured over $18 billion in project capital to expand its portfolio [3].
Following the IPO announcement, SoftBank Group’s shares surged nearly 20% in Tokyo trading on May 20, reflecting investor enthusiasm linked to both SB Energy and OpenAI, which is also preparing for a separate US IPO filing targeting a public debut in fall 2026 [4].
The confidential filing from SB Energy signals its readiness to access public markets amid strong investor demand for companies connected to AI infrastructure and clean energy solutions [3, 5]. SB Energy’s public offering is expected to join a wave of tech- and energy-related listings aiming to meet the growing data center power requirements as AI adoption rises.
SB Energy’s next steps include ongoing SEC review of its registration statement and market-driven timing decisions before finalizing the IPO price and date [1]. The company remains focused on scaling infrastructure to support the expanding AI ecosystem as it approaches its public debut.
