Tate Engineering Acquires Site Support Services, Inc.

Technical Safety Services Acquires Atlantic Technical Systems, Inc.

March 5, 2020

Healthcare Services

Technical Safety Services, LLC (TSS), operating under Technical Solutions Holdings, Inc., has acquired Atlantic Technical Systems, Inc. (ATS), a cleanroom testing and certification services business based in Annapolis, Maryland. The acquisition expands TSS/TSH’s service capabilities and strengthens its national footprint in the northeastern United States, while ATS customers will gain access to a broader suite of testing, certification and calibration services.

Calibre Scientific Acquires Scientific Support Services Ltd

November 27, 2023

Industrial Services

Calibre Scientific, a Los Angeles–based provider of life science reagents, tools and instrumentation, has acquired Scientific Support Services Ltd (SSS), a UK-based supplier of analytical instruments, consumables and technical services. The acquisition expands Calibre Scientific's product and service offering and strengthens its market presence across the British Isles, while adding customer relationships in petrochemical, environmental, pharmaceutical/clinical and food & flavors end markets.

CCI Systems Inc. Acquires Total Site Services

September 24, 2025

Telecommunications

CCI Systems Inc., a 100% employee-owned telecommunications services provider headquartered in Iron Mountain, Michigan, has acquired Total Site Services, a provider of tower site acquisition, engineering design, and construction management services. The acquisition expands CCI Systems' wireless-industry capabilities and accelerates its market growth by adding Total Site Services' engineering and site-acquisition expertise.

Total Safety Acquires S&S Supplies and Solutions

September 13, 2019

Industrial Services

Total Safety announced the acquisition of S&S Supplies and Solutions to expand its specialty distribution capabilities for industrial safety products and supplies. S&S will operate independently under the S&S brand with its existing leadership remaining in place as Total Safety integrates distribution into its service offerings to better serve power utility, automotive, airline and energy customers across the U.S.

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.

The SEER Group Acquires S&S Mechanical to Enter Utah Market

May 13, 2025

HVAC & Mechanical

The SEER Group has acquired S&S Mechanical, a long-established HVAC and plumbing provider based in St. George, Utah, marking SEER's first expansion into Utah. The acquisition brings S&S into SEER’s network of residential and commercial home‑services brands while preserving the company's local leadership and operations.