Stellex Capital Management Acquires Industrial Construction Services Holding (ICS)

ICS Holding (Stellex Capital) Acquires Langford Electric

September 22, 2025

Electrical Services

ICS Holding, a portfolio company of Stellex Capital, has acquired Langford Electric, a Greenville, South Carolina-based electrical contractor. The add-on expands ICS Holding’s footprint and capabilities in the Southeast U.S.; terms were not disclosed and EdgePoint advised Langford Electric on the sale.

Onex Corporation Acquires Independent Clinical Services (ICS)

September 18, 2020

Healthcare Services

Onex Corporation, via its Onex Partners V fund, agreed to acquire Independent Clinical Services Group Ltd. (ICS) from TowerBrook Capital Partners, with TowerBrook reinvesting a portion of proceeds and the ICS management team also reinvesting. ICS is a healthcare staffing and managed services provider operating across four continents with approximately 1,850 employees and will be supported by Onex to drive future growth and expansion.

Stellex Capital Management Acquires Crest Ultrasonics

October 3, 2025

Manufacturing

Stellex Capital Management, a New York-based private equity firm, has acquired Crest Ultrasonics, a global manufacturer of ultrasonic cleaning and welding equipment with operations in the United States, Europe and Asia. Stellex said it will partner with Crest's management to drive operational improvements, accelerate growth initiatives and expand the company's global footprint; terms were not disclosed.

Stellex Capital Management Acquires RTC Aerospace

March 21, 2022

Manufacturing

Stellex Capital Management completed a platform investment in RTC Aerospace LLC, a manufacturer of high-precision machined components for commercial and military aerospace customers. Stellex will support RTC’s organic growth and pursue an M&A-focused expansion strategy while existing investor/executive Brad Hart remains on the cap table and Dave Herr joins as a partner for growth.

Stellex Capital Continuation Vehicle Acquires Interests in Fenix Parts

April 10, 2024

Automotive

Stellex Capital Management closed a single-asset continuation vehicle that acquired interests in Fenix Parts, providing follow-on capital to support organic growth and the company’s add-on M&A pipeline. Concurrently, Fenix refinanced its debt with TCW Private Credit Group as lead lender; Evercore served as financial advisor and Kirkland & Ellis and Greenberg Traurig as legal counsel.

Interlock Equity Makes Growth Investment in Investor Group Services (IGS)

December 14, 2022

Professional Services

Los Angeles-based private equity firm Interlock Equity has made a strategic growth investment in Boston-based consulting firm Investor Group Services (IGS). The minority growth capital will support IGS's expansion of its consulting team, new service offerings, geographic footprint, and potential strategic acquisitions while founders and leadership retain significant ownership.