Bear Castle Capital's Allied Services Group Acquires Colstrip Electrical, Inc.

Allied Services Group Acquires Substations, Inc.

January 6, 2026

Industrial Services

Allied Services Group, the electrical services platform backed by Bear Castle Capital, has acquired Substations, Inc. (SSI), a high-voltage substation installation and maintenance contractor. The add-on expands Allied’s service capabilities into Texas and strengthens Bear Castle’s electrical services platform in the South-Central United States.

Sterling Infrastructure Acquires CEC Facilities Group

September 2, 2025

Construction

Sterling Infrastructure, Inc. (Nasdaq: STRL) has completed its acquisition of Irving, Texas–based CEC Facilities Group, a specialty electrical and mechanical contractor. The deal expands Sterling’s E-Infrastructure capabilities into mission-critical electrical contracting and is expected to contribute approximately $130–138 million of revenue and $17–18 million of adjusted EBITDA for the remainder of 2025.

Bernhard Capital-Backed Allied Power Acquires Dominion Engineering

September 14, 2023

Energy

Allied Group Holdings, LLC (Allied Power), a Bernhard Capital Partners-backed platform, has acquired Dominion Engineering, Inc., a provider of field service equipment, technology, and specialized engineering services to the nuclear power industry. The add-on acquisition expands Allied's technical service, equipment and engineering capabilities for nuclear utilities, supporting outage, decommissioning and waste management work; financial terms were not disclosed.

CAES Acquires Colorado Engineering, Inc.

October 1, 2021

Aerospace & Defense

CAES has acquired Colorado Engineering, Inc. (CEI), a Colorado Springs-based provider of RF and high-performance computing (HPC) solutions, to broaden CAES' digital systems engineering and manufacturing capabilities. The acquisition combines CAES' RF, microwave and manufacturing expertise with CEI's digital systems, radar, communications and AI/ML capabilities to better serve defense and commercial customers.

Allied Industrial Partners Acquires CAT Entertainment Services (rebranded CES Power)

July 22, 2021

Industrial Services

Allied Industrial Partners LLC (AIP) acquired CAT Entertainment Services—a portable/mobile power generation, distribution and temperature control business carved out from Ring Power Corporation—and will rebrand the business as CES Power. Ring Power will retain a minority stake; AIP plans to grow the business as a standalone platform and pursue organic expansion and add-on acquisitions to accelerate growth.

BHI Energy Acquires Coastal Electrical Construction

August 11, 2020

Industrial Services

BHI Energy has acquired Coastal Electrical Construction, a Flomaton, Alabama–based provider of substation, transmission and distribution construction and maintenance services to major utilities in the Southeastern United States. The deal is the third add-on for BHI in the T&D space since its acquisition by AE Industrial Partners and is intended to expand BHI's geographic footprint and service capabilities in the Southeast; terms were not disclosed.