RoMan's Macro Magnetics LLC Acquires Assets of Grand Power Systems

AirX Climate Solutions Acquires Powrmatic USA

December 4, 2024

HVAC & Mechanical

AirX Climate Solutions (ACS), a Gryphon Investors-backed specialty HVAC platform, has acquired Powrmatic USA, a Finksburg, Maryland-based manufacturer of commercial and industrial heating, cooling and air turnover systems. Powrmatic, with ~30 employees, was divested by Stamm International Corporation and will operate under ACS to expand its specialty HVAC capabilities and mid‑Atlantic footprint.

Canter Power Systems Acquires Grasten Power Technologies

October 23, 2024

Electrical Services

Canter Power Systems, a Generac Power Premier Pro dealer backed by Rotunda Capital Partners, has acquired Grasten Power Technologies, a Houston-area installer and service provider of residential standby generators. The add-on expands Canter's presence in Texas, adds thousands of service/maintenance contracts, and supports the platform's national growth strategy.

MacLean Power Systems Acquires Dotson Iron Castings

May 19, 2023

Manufacturing

MacLean Power Systems has completed the acquisition of Dotson Iron Castings, a century-old ductile iron foundry based in Mankato, Minnesota. The purchase furthers MacLean's vertical-integration strategy to strengthen its U.S. supply chain, increase production capacity and shorten lead times for utility and communications infrastructure products; Dotson CEO Tyson Twait will join MPS as Vice President and General Manager of Mankato Operations.

Motion & Control Enterprises Acquires Romanoff Industries

July 5, 2024

Industrial Services

Motion & Control Enterprises (MCE), a Frontenac-backed supplier of fluid power, automation and rotating equipment solutions, has acquired Romanoff Industries, a Toledo, Ohio-based distributor of new, used and refurbished electric motors. Romanoff will continue to operate under its name with Jay Romanoff remaining in leadership; the deal expands MCE's motor distribution and service footprint across the U.S.

Trystar Acquires Macromatic and Primax Technologies

February 29, 2024

Manufacturing

Trystar, a Goldner Hawn portfolio company, completed the acquisitions of Macromatic Industrial Controls (Waukesha, WI) and Primax Technologies (Pointe-Claire, Quebec). The add-ons expand Trystar’s manufacturing and monitoring capabilities—adding electronic relays and battery-backed AC/DC power solutions—and broaden its market access, including strengthened utility and industrial reach in Canada.

Macquarie Asset Management Acquires Majority Stake in DynaGrid Holdings

February 20, 2025

Engineering Services

Macquarie Asset Management has acquired a majority stake in DynaGrid Holdings, LLC, a Dallas‑headquartered provider of transmission and substation construction, maintenance and upgrade services for U.S. electric utilities. The deal is the first investment for Macquarie Asset Management's new buyout strategy focused on high-quality businesses serving infrastructure end markets and will be led by Andrew Olinick.