Madison Air Completes $2.2B IPO, Largest Industrial Sector Offering Since 1999 UPS IPO

Gate News message, April 16 — Madison Air Solutions (MAIR.US), a U.S.-based indoor air solutions provider, completed its initial public offering (IPO) on Wednesday, pricing shares at $27 each and issuing 82.7 million shares to raise $2.2 billion. The offering marks the largest IPO in the U.S. market so far in 2026 and the biggest industrial sector financing since United Parcel Service (UPS) raised $5.5 billion in 1999.

The company priced at the top end of its $25-$27 guidance range, signaling strong institutional demand. The $2.2 billion total includes $525 million from anchor investors (24% of the deal) and a concurrent $100 million private placement of Class B shares by Madison Industries Holdings, the company’s parent controlled by founder Larry Gies. The underwriting syndicate comprised 13 major investment banks including Goldman Sachs, Barclays, Jefferies, Wells Fargo, Bank of America, and Citi.

Madison Air operates brands including Nortek Air Solutions, Nortek Data Center Cooling, AprilAire, and Big Ass Fans, serving markets from residential ventilation to hyperscale data center precision cooling. In 2025, the company generated net sales of $3.34 billion, up 27.3% year-over-year, driven by surging data center demand and acquisition synergies. Approximately 60% of revenue comes from equipment replacement and upgrades, while 10% derives from aftermarket services and parts, providing revenue stability independent of new construction cycles.

The IPO timing aligns with accelerating demand for data center cooling solutions as AI server power density escalates from traditional 10-20 kW to over 100 kW per cabinet. The global data center cooling market is projected to expand from approximately $11 billion currently to nearly $30 billion by 2032, representing a 15% compound annual growth rate. At the IPO price, Madison Air trades at an EV/EBITDA multiple of 14-15x, compared to Trane Technologies (TT.US) at approximately 20x, while the company maintains EBITDA margins around 26.7%.

The offering reflects a broader shift in U.S. capital markets toward hard assets and infrastructure with stable cash flows. However, investors should note disclosed risks including customer concentration, with the top 10 customers accounting for approximately 32% of revenue, and the company’s controlled company status due to founder Gies’ super-voting Class B shares, which limits minority shareholder influence on major decisions.