#United States #Aerospace #Chatsworth #Arcline #Hydraulics International

Arcline Investment Management to Acquire Hydraulics International, Inc.

Chatsworth, CA – February 24, 2026 – Arcline Investment Management, a private equity firm dedicated to growth, has publicly declared its definitive agreement to acquire Hydraulics International, Inc. (HII), an established name in the design and manufacturing of critical ground support equipment for aerospace, defense, and industrial applications.

Founded in 1976, Hydraulics International has positioned itself as a leader in providing essential hydraulic, pneumatic, and electro-mechanical systems that are crucial for aircraft maintenance, testing, and flight-line operations. The company also caters to specific industrial markets with its high-performance solutions that support vital flow control. HII's product offerings serve a diverse clientele, including U.S. and allied defense forces, primary contractors, governmental agencies, and industrial firms, making them indispensable for uninterrupted operations of aircraft and related equipment.

Arcline's spokesperson commented, "Hydraulics International has built a robust reputation as a reliable partner for aerospace and defense clients operating under rigorous conditions. Their solid engineering foundations and established customer trust create an appealing opportunity for continued investment and future growth. We eagerly anticipate working alongside HII's team to broaden their capabilities and enhance relationships with customers globally."

Bahman Seifollahi, the CEO of HII, expressed his excitement about the partnership, stating, "We take immense pride in the business, technologies, and strong bonds with our customers that our team has fostered over the past five decades. Our collaboration with Arcline is a crucial step forward, and we are confident that their growth-focused philosophy and profound industry knowledge will greatly benefit HII's trajectory in the upcoming years."

In this transaction, RBC Capital Markets provided financial guidance to Arcline, while Guggenheim Securities and Lazard were advisors to Hydraulics International.

About the Companies

Arcline Investment Management

Established as a growth-oriented private equity firm, Arcline manages over $20 billion in assets. Their approach is centered around developing the next generation of industrial leaders—creating market-leading platforms that sustain earnings growth over extended periods. For further information about Arcline, visit www.arcline.com.

Hydraulics International, Inc.

Hydraulics International stands as a prominent supplier of integrated products and services to military forces, aviation sectors, and various government agencies worldwide. Their focus is squarely on the realm of defense and commercial technology, and they are dedicated to innovating, producing, and supporting a wide array of systems with advanced design and manufacturing capabilities that facilitate sophisticated ground support solutions. For more details, explore www.hiigroup.com.

As the aerospace and defense industries continue to evolve, this acquisition positions both Arcline and Hydraulics International for exciting growth opportunities, establishing a stronger foothold in a competitive market.