Shermco Industries Acquires Eastern High Voltage, Inc.

Shermco Industries Acquires Power Test, Inc.

April 2, 2024

Industrial Services

Shermco Industries, a Gryphon Investors–backed electrical services platform headquartered in Irving, Texas, has acquired Power Test, Inc., a NETA‑accredited electrical testing and maintenance firm based in Harrisburg, North Carolina. The acquisition expands Shermco's service footprint and capabilities in the southeastern United States; terms were not disclosed and Power Test's management will join Shermco.

Shermco Industries Acquires Sigma Six Solutions and Innovative Electric

June 7, 2021

Industrial Services

Shermco Industries, a Gryphon Investors-backed electrical services provider, has acquired two Pacific Northwest electrical businesses: Sigma Six Solutions (Auburn, WA) and Innovative Electric (Everett, WA). The deals expand Shermco’s testing, maintenance, commissioning and design-build electrical capabilities and strengthen its presence across the Pacific Northwest as part of a broader platform build-out.

Blackstone Acquires Shermco from Gryphon Investors for $1.6 Billion

October 28, 2025

Industrial Services

Blackstone’s private equity funds, including Blackstone Energy Transition Partners, have acquired Shermco from Gryphon Investors in a transaction valued at approximately $1.6 billion. Shermco, headquartered in Irving, Texas, provides electrical testing, maintenance, commissioning and engineering services to data centers, utilities and industrial clients and will be positioned to scale further under Blackstone’s energy-transition focused capital.

Shermco Industries Acquires R3L Engineering

May 20, 2025

Industrial Services

Shermco Industries, a PE-backed electrical testing and power-systems services provider, has acquired R3L Engineering to expand its technical engineering capabilities and strengthen its presence in the Birmingham, Alabama area. The acquisition expands Shermco’s regional workforce and ability to serve industrial and utility customers across Alabama and the Southeastern United States; terms were not disclosed.

LineStar Utility Supply Acquires Western High Voltage Test Centre

September 5, 2023

Electrical Services

LineStar Utility Supply, a portfolio company of CAI Capital Partners, has acquired Western High Voltage Test Centre (WHV), a Calgary-based provider of high-voltage live-line equipment testing. The acquisition adds high-voltage testing capabilities to LineStar's distribution business, retains WHV President Daniel Verhelst with a meaningful equity stake, and supports LineStar's strategy to expand services and geographic coverage across Canada.

Hitachi Energy Acquires Minority Stake in Shermco in Partnership with Blackstone

October 29, 2025

Energy

Hitachi Energy has acquired a minority stake in Shermco, a leading North American electrical services provider, in partnership with Blackstone Energy Transition Partners. The strategic investment aims to expand Hitachi Energy's service capabilities across North America, accelerate Shermco's growth, and develop new digital service offerings to improve grid reliability and asset lifecycle management.