AIR Control Concepts (Blackstone) Acquires Technical Air Systems, Inc.

Blackstone and Madison Dearborn Invest in Air Control Concepts

July 15, 2024

HVAC & Mechanical

Funds managed by Blackstone have made an equity investment in Air Control Concepts alongside existing investor Madison Dearborn Partners and AIR's management team to support the continued growth of AIR's commercial HVAC solutions platform. Headquartered in Norfolk, Virginia, AIR will continue to be led by its existing management team, which retains a meaningful ownership stake; terms were not disclosed.

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

January 9, 2026

HVAC & Mechanical

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.

Air Control Concepts Acquires Five HVAC Manufacturer Representative Firms

July 23, 2024

Building Products

Air Control Concepts (AIR) completed the acquisition of five regional HVAC manufacturer representative firms — Northrich Company, Air Components, Dorse and Company, JJP Mechanical Reps, LLC, and ThermAir Systems — expanding AIR’s geographic footprint, capabilities and manufacturer relationships across the United States. Each acquired firm will continue to operate under its existing brand while joining AIR’s network of commercial HVAC operating companies.

AIR Control Concepts Acquires Force Equipment HVAC

July 17, 2025

HVAC & Mechanical

AIR Control Concepts, a Norfolk, Virginia–headquartered commercial HVAC platform, has acquired Force Equipment HVAC, a nine-year-old commercial HVAC manufacturers' representative based in Elkhorn, Nebraska. The add-on expands AIR's Midwest footprint—bringing additional sales, service and parts support to Nebraska customers while providing Force's team access to AIR's broader resources and network.

VaLogic Bio Acquires Air Systems Technologies (AST)

July 30, 2025

Healthcare Services

VaLogic Bio has acquired Air Systems Technologies (AST), a cleanroom certification and biosafety-testing specialist headquartered in Avon, Massachusetts. The acquisition expands VaLogic's service offerings for life sciences customers and strengthens its presence across the Mid-Atlantic and New England; AST will continue operating in Avon as VaLogic Bio.

Technical Safety Services Acquires Precision Air Technology

April 11, 2023

Professional Services

Technical Safety Services (TSS), a portfolio company of Levine Leichtman Capital Partners (LLCP), has acquired Precision Air Technology, Inc., a Morrisville, North Carolina provider of controlled-environment testing and certification services for pharmaceutical, biotechnology and healthcare settings. The deal expands TSS's geographic presence in the Research Triangle and is the sixth acquisition by TSS since being acquired by LLCP in 2022.