Madison Air raises $2.2 billion in US IPO

April 15, 2026 5:10 PM EDT

FILE PHOTO: A street sign for Wall Street is seen outside of the New York Stock Exchange (NYSE) in New York City, New York, U.S., June 28, 2021. REUTERS/Andrew Kelly/File Photo

April 15 (Reuters) - Indoor air ‌systems provider ​Madison Air ​Solutions said on Wednesday it had raised $2.23 billion in its U.S. initial public offering.

The Chicago, Illinois-based company sold 82.7 ‌million shares in the IPO at $27 each, compared with ⁠the marketed range of $25 to $27. The IPO valued it at $13.2 billion.

Investors have shown appetite ‌for infrastructure and data ‌center-linked businesses, drawn by rising cooling and power needs from AI expansion, amid geopolitical tensions in the Middle East that have ​kept the broader U.S. IPO market in jitters.

Madison Air estimates its products address a roughly $40 billion North American market, where it ⁠holds about an 8% share, according to its filing, with data centres among the faster‑growing ​verticals.

Founded in 2017 through a series of acquisitions, Madison Air provides air quality solutions for residential and commercial ​clients across a range of sectors, ‌including data centers, advanced manufacturing, education, and health care.

The company’s commercial business accounted for 66% of total ⁠sales last year, with the remainder coming from the residential segment.

Madison Air, formerly known as Madison Indoor Air Quality, was formed under the leadership of ⁠Larry Gies, the founder and CEO of privately held Madison Industries.

Cornerstone investors Durable ​Capital Partners, Morgan Stanley's Counterpoint Global, and HRTG had separately indicated interest in purchasing up to $525 million of shares in the offering.

The company plans to ‌use proceeds from the IPO for repaying loans and for general corporate purposes. It had a backlog ‌of $2.02 billion, as of December 31.

Goldman Sachs, Barclays, Jefferies and Wells Fargo ⁠Securities are the joint ‌lead book-running managers for ​the IPO.

Madison Air will list on the NYSE under the symbol "MAIR".

(Reporting by Pragyan Kalita in Bengaluru; Editing by ‌Maju Samuel)



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Goldman Sachs, Morgan Stanley, Jefferies & Co, Barclays, Wells Fargo, IPO