Blackstone Acquires Madison Dearborn's Remaining Stake in AIR Control Concepts

January 9, 2026

Blackstone has acquired Madison Dearborn Partners' remaining equity stake in AIR Control Concepts, making Blackstone the sole institutional investor after an initial investment in July 2024. AIR founder and CEO Brad Hobbs and his family are reinvesting alongside Blackstone as the company pursues continued expansion—including opportunities in data centers and adjacent service areas—across 35 U.S. states and Canada with more than 38 operating companies and roughly 1,900 associates.

Buyers
Blackstone, Brad Hobbs and family
Targets
AIR Control Concepts
Sellers
Madison Dearborn Partners
Location
Virginia, United States
Transaction Type
Recapitalization

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