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Advent, ADIA-backed gas engine maker Innio targets $20.3 billion valuation in US IPO

By Thomson Reuters May 26, 2026 | 6:46 AM

May 26 (Reuters) – Gas engine manufacturer Innio said on Tuesday it was targeting a valuation of up to $20.25 billion in a ​U.S. initial public offering, as it looks ‌to tap investor appetite for companies powering the AI boom.

Munich, Germany-based Innio’s principal shareholder AI Alpine – co-owned by funds managed by Advent International and Abu Dhabi Investment Authority – ‌is ​seeking up to $2.03 billion in ⁠the IPO by offering ⁠75 million shares priced between $24 and $27 per share.

As investors remain jittery over AI’s potential to disrupt businesses, focus has shifted to the “picks and ​shovels” fueling the technology’s buildout – from electrification to the supply chain for data centers.

Innio makes ⁠gas engines under its ⁠Jenbacher and Waukesha brands for critical ​infrastructure such as data centers, and has benefited from ​rising electricity demand tied to the AI-driven ‌buildout.

Its annual data centre equipment orders grew roughly 16-fold between 2020 and 2025.

U.S. buyout firm Advent International carved out General Electric’s distributed power business ⁠to form Innio as a standalone company in a $3.25 billion deal in 2018. In 2023, sovereign wealth fund ⁠ADIA took a ‌minority stake in the firm.

Under ⁠Advent’s ownership, Innio has strengthened its ​North American ‌footprint, ramping up investments in U.S. ​manufacturing and ⁠assembly capacity.

Goldman Sachs, J.P. Morgan and Morgan Stanley are joint lead book-running managers for the offering. Innio will list on the Nasdaq under the symbol “INIO”.

(Reporting by Arasu Kannagi Basil in Bengaluru; Editing by ​Vijay Kishore)