Stellex Capital Management Acquires RTC Aerospace

RTC Aerospace Acquires Vanderhorst Brothers Industries

January 16, 2024

Aerospace & Defense

RTC Aerospace LLC, a Stellex Capital Management-backed precision manufacturer, has acquired Vanderhorst Brothers Industries (VBI), a family-run precision machining shop in Simi Valley, California. The add-on expands RTC's capabilities and Southern California presence to better serve aerospace, defense and space OEM and Tier 1 customers; financial terms were not disclosed.

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.

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 Industrial Construction Services Holding (ICS)

January 15, 2025

Industrial Services

Stellex Capital Management, a New York-based middle-market private equity firm, has completed the acquisition of Industrial Construction Services Holding (ICS), a provider of mission-critical electrical and instrumentation services. Stellex plans to partner with ICS management to invest in organic growth and pursue strategic add-on acquisitions to expand the company’s service capabilities and geographic footprint across the United States.

TransDigm Acquires Stellant Systems from Arlington Capital for $960 Million

January 14, 2026

Aerospace & Defense

TransDigm Group Incorporated has acquired Stellant Systems Inc., a portfolio company of Arlington Capital Partners, for approximately $960 million in cash. Stellant, headquartered in Torrance, California, manufactures high‑power electronic components for defense, space, medical and industrial markets and employs roughly 950 people, with expected 2025 revenue of about $300 million.

Stellex Capital Management Acquires Paragon Metals, LLC

February 14, 2019

Manufacturing

Affiliates of Stellex Capital Management have acquired Paragon Metals, a precision-machining manufacturer serving automotive and industrial applications. Stellex plans to invest capital to grow Paragon organically and via acquisitions; founder Mike Smith exited and Bruce Swift was named CEO following the deal.