SI Solutions Acquires Integrity Specialists, LLC

MidOcean Partners Acquires SI Solutions

August 15, 2024

Industrial Services

MidOcean Partners, a New York-based private equity firm, has acquired SI Solutions, a provider of engineering, testing, inspection, compliance, maintenance and digital solutions for power and critical infrastructure. SI Solutions (more than 450 employees) will remain led by CEO Mark Marano; management, employee shareholders and prior investor Jumana Capital have reinvested in the business. Terms were not disclosed.

XCEL NDT Acquires Integrity Assessment Group

September 16, 2025

Industrial Services

XCEL NDT LLC, a Graycliff Partners portfolio company, acquired Integrity Assessment Group (IAG) to expand its non-destructive testing (NDT) and integrity services capabilities. The deal adds maintenance and cathodic protection services and broadens XCEL's end-market exposure—notably into power generation—while increasing manpower and specialized equipment.

SI Solutions Acquires Radiological Solutions

February 5, 2026

Energy

SI Solutions, through its advanced engineering division Structural Integrity Associates (SIA), has acquired Radiological Solutions, Inc., a nuclear engineering partner that specializes in plant chemistry, radiological controls, radiation protection, and specialized monitoring equipment. The acquisition expands SIA's capabilities in nuclear chemistry, radiation management, emergency preparedness and equipment design and brings Radiological Solutions' team and expertise (based outside Chicago) into SI Solutions' PE-backed platform.

Dunbar Security Solutions Acquires Integrity Systems, Inc.

October 19, 2021

Professional Services

Dunbar Security Solutions has acquired all assets of Integrity Systems, Inc., adding security system installation and service capabilities across the Washington, D.C. metro market. The acquisition expands Dunbar's local installation footprint and customer base in the Mid-Atlantic while bringing Integrity's technicians and infrastructure into Dunbar's Greenbelt, Maryland and Sterling, Virginia branch operations.

Corridor Capital Invests in Integrity Solutions

December 28, 2023

Education

Corridor Capital has made an investment in Integrity Solutions, LLC, a Nashville-based sales and sales leadership training firm, to support the company’s growth and development of new services. Management, led by CEO Mike Esterday, will remain in place and continue as a material owner while Corridor provides strategic, operational and financial support, with Live Oak Bank providing debt financing.

PROtect, LLC Acquires Trident Pipeline Integrity, LLC

October 13, 2025

Industrial Services

Wichita-based PROtect, LLC has acquired Trident Pipeline Integrity, LLC, an Oklahoma-based provider of advanced ultrasonic non-destructive testing and corrosion mapping for pipelines. The deal expands PROtect's Pipeline Integrity capabilities and strengthens its regional presence in Oklahoma while adding Trident's field talent and technical expertise.