Innio, a manufacturer of gas engines supported by private equity firm Advent International and the Abu Dhabi Investment Authority (ADIA), is targeting a valuation of $20.3 billion in its upcoming US initial public offering (IPO). This development underscores the growing investor interest in energy technology firms as global energy markets evolve. The IPO aims to provide Innio with capital to expand its operations and enhance its market presence. The company's focus on gas engine technology positions it strategically within the energy sector, which is witnessing shifts towards cleaner and more efficient energy solutions. UPDATE 3-Advent, ADIA-backed gas engine maker Innio targets $20.3 billion valuation in US IPO.