Madison Industries Acquires Specified Air Solutions from The Sterling Group

Midland Industries Acquires Industrial Specialties Manufacturing (ISM)

March 9, 2026

Industrial Services

Midland Industries, a portfolio company of Gemspring Capital, acquired Industrial Specialties Manufacturing (ISM). The acquisition expands Midland’s product portfolio into pneumatic, vacuum, and fluid-control components and strengthens its position in OEM channels. Financial terms were not disclosed.

Flow Service Partners Acquires Dynamic Air Solutions

May 31, 2024

HVAC & Mechanical

Flow Service Partners, a PE-backed commercial HVACR and plumbing platform, has acquired Dynamic Air Solutions, a Louisville-based commercial and industrial HVAC specialist. The add-on expands Flow's service capabilities and operational density in Kentucky and southern Indiana; financial terms were not disclosed.

AirX Climate Solutions Acquires Northern Air Systems

March 19, 2026

HVAC & Mechanical

AirX Climate Solutions, Inc. acquired Northern Air Systems, Inc., a designer and manufacturer of specialized, mission-critical packaged HVAC systems. The acquisition expands AirX’s engineering capabilities and presence across highly demanding verticals, while Northern Air’s founder Tim Confer transitions to a strategic advisor role and Will Rausch becomes General Manager.

HomeServe USA Acquires Sterling Air Services

December 16, 2020

HVAC & Mechanical

HomeServe USA acquired Sterling Air Services, a Mesa, Arizona-based HVAC and plumbing services provider, to expand its presence in the Phoenix East Valley. Sterling — founded by Joel and Anastasia Harris and operating with a ~12-technician team serving residential customers — will join HomeServe's regional operations to broaden service capacity and local coverage.

Madison Industries' IAQ Vertical Acquires Big Ass Fans from Lindsay Goldberg

July 19, 2021

Manufacturing

Madison Industries’ Indoor Air Quality vertical (Madison IAQ) has agreed to acquire Big Ass Fans from funds managed by Lindsay Goldberg. Financial terms were not disclosed; the deal is expected to close in Q3 2021 and expands Madison’s indoor air quality and airflow product portfolio.

AirX Climate Solutions Acquires AboveAir Technologies

July 8, 2024

HVAC & Mechanical

AirX Climate Solutions, a Gryphon Investors-backed platform, has acquired AboveAir Technologies, a Frederick, Maryland-based OEM of precision cooling solutions for data centers. AboveAir will operate as a new division of ACS with founder Matt Miller named President of the AboveAir division and becoming a shareholder; ACS will invest in manufacturing capacity at AboveAir's 100,000-square-foot facility and expand its Mid-Atlantic footprint.