IES Holdings Acquires Greiner Industries

IES Holdings Acquires Gulf Island Fabrication

January 16, 2026

Manufacturing

IES Holdings, Inc. completed the acquisition of Gulf Island Fabrication, Inc., buying all outstanding common stock for $12.00 per share in cash (approx. $192 million equity value). Gulf Island will join IES's Infrastructure Solutions segment, expanding IES's fabrication capacity and capabilities to better serve data center, energy and government customers.

Integrated Energy Services Acquires MACH Energy

June 24, 2019

Energy

Integrated Energy Services (iES), a portfolio company of Gainline Capital Partners, has acquired MACH Energy, an energy management and sustainability software platform. The combination brings together iES's grid-relationship management and demand response capabilities with MACH's building energy analytics to expand product capabilities, improve grid resiliency, and accelerate growth across commercial building customers.

IES Holdings Acquires Arrow Engine Company

January 31, 2025

Manufacturing

IES Holdings, Inc. (NASDAQ: IESC) has acquired Arrow Engine Company, a Tulsa-based manufacturer of engines, generator sets, compressors and replacement parts, from TriMas Corporation. Arrow will join IES's Infrastructure Solutions segment, continuing to operate under the Arrow name and leveraging IES's manufacturing and engineering resources to expand product offerings and serve oil & gas and industrial end markets.

SSOE Group Acquires Integrated Engineering Services (IES)

October 13, 2023

Engineering Services

SSOE Group has acquired Santa Clara–based Integrated Engineering Services (IES), effective October 13, 2023. The acquisition adds IES's expertise in cleanroom design, lab and industrial ventilation, specialty/toxic gas distribution and process chemical systems, while preserving IES's team and expanding SSOE's presence in Santa Clara, Atlanta and Austin.

Mutares Acquires Greer Steel Company

January 2, 2026

Manufacturing

Mutares SE & Co. KGaA has completed the acquisition of Greer Steel Company, a Dover, Ohio-based cold rolled strip steel specialist, from Greer Industries, Inc. The purchase expands Mutares' Engineering & Technology segment and North American footprint, positioning Greer Steel as a growth platform to serve automotive and industrial customers through operational improvements and targeted investments.

IES Holdings Acquires Aerial Lighting & Electric

February 18, 2020

Electrical Services

IES Holdings, Inc. acquired all equity interests in Aerial Lighting & Electric, Inc., a Naugatuck, Connecticut-based electrical contractor specializing in multi-family residential electrical systems. Aerial, which had approximately $24 million in 2019 revenue and over 60 employees, will join IES's Residential segment to strengthen and expand IES's presence in the Northeast and Mid-Atlantic.